Find the value of Angle L in the figure below

Find The Value Of Angle L In The Figure Below

Answers

Answer 1

The value of angle L is 78°

What is arc angle relationship?

An arc of a circle is a section of the circumference of the circle between two radii. The measure of an arc is the measure of its central angle.

To find L we need to find measure of arc MN

arc LN is 180°

therefore ;

2x-20 + 8x -20 = 180

10x -40 = 180

10x = 180+40

10x = 220

divide both sides by 10

x = 220/10

x = 22

Therefore arc MN

= 8x -20

= 22 × 8 -20

= 156°

angle L = 1/2 × 156

L = 78°

Therefore the value of angle L is 78°

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Related Questions

Find the volume of a frustum of a cone given that its height is 5 cm and the radii at top and bottom are 4 cm and 7 cm, respectively.​

Answers

To find the volume of a frustum of a cone, you can use the formula:

V = (1/3)πh(R^2 + r^2 + Rr)

Where:

V = Volume of the frustum of the cone

h = Height of the frustum of the cone

R = Radius of the bottom base of the frustum of the cone

r = Radius of the top base of the frustum of the cone

π = Pi (approximately 3.14159)

Given:

Height (h) = 5 cm

Radius of bottom base (R) = 7 cm

Radius of top base (r) = 4 cm

Substituting the given values into the formula, we get:

V = (1/3)π(5)(7^2 + 4^2 + 7*4)

V = (1/3)π(5)(49 + 16 + 28)

V = (1/3)π(5)(93)

V = (5/3)π(93)

V ≈ 154.77 cm³

Therefore, the volume of the frustum of the cone is approximately 154.77 cm³.

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Which statement is not related to statistics associated with cross-tabulation? a. The test could be conducted on the mean of one sample or two samples of observations. b. The statistical significance of the observed association is commonly measured by the chi-square statistic c. Generally, the strength of association is of interest only if the association is statistically significant d. The strength of association can be measured by the phi correlation coefficient, the contingency coefficient, Cramer's V, and the lambda coefficient

Answers

a. The test could be conducted on the mean of one sample or two samples of observations.

Find out that which statement is not related to statistics ?

The statement "The test could be conducted on the mean of one sample or two samples of observations" is not related to statistics associated with cross-tabulation.

Cross-tabulation, also known as a contingency table or a crosstab, is a statistical technique used to analyze the relationship between two categorical variables. It is commonly used to examine the association between two variables and determine if there is a significant relationship between them.

Options (b), (c), and (d) are all related to statistics associated with cross-tabulation. The chi-square statistic is commonly used to measure the statistical significance of the observed association. The statement in option (c) correctly highlights that the strength of association is of interest only if it is statistically significant. Option (d) mentions several measures that can be used to quantify the strength of association in cross-tabulation, including the phi correlation coefficient, the contingency coefficient, Cramer's V, and the lambda coefficient.

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1. if f(x) = 2x2 − 7, 0 ≤ x ≤ 3, find the riemann sum with n = 6, taking the sample points to be midpoints. what does the riemann sum represent? illustrate with a diagram. give exact answer.

Answers

The Riemann sum with n = 6 and midpoints as sample points for f(x) = 2x^2 - 7 represents an approximation of the definite integral of f(x) over the interval [0, 3].

The value of the Riemann sum (10.875) represents an estimation of the area between the curve of f(x) and the x-axis within the given interval.

Calculate the width of each subinterval: Δx = (3 - 0) / n = 3/6 = 0.5.

Determine the midpoint of each subinterval: xᵢ = 0 + (i - 0.5)Δx, where i ranges from 1 to n.

For i = 1, x₁ = 0 + (1 - 0.5)(0.5) = 0.25

For i = 2, x₂ = 0 + (2 - 0.5)(0.5) = 0.75

For i = 3, x₃ = 0 + (3 - 0.5)(0.5) = 1.25

For i = 4, x₄ = 0 + (4 - 0.5)(0.5) = 1.75

For i = 5, x₅ = 0 + (5 - 0.5)(0.5) = 2.25

For i = 6, x₆ = 0 + (6 - 0.5)(0.5) = 2.75

Evaluate f(x) at each midpoint: f(xᵢ) = 2(xᵢ)^2 - 7.

f(x₁) = 2(0.25)^2 - 7 = -6.875

f(x₂) = 2(0.75)^2 - 7 = -5.625

f(x₃) = 2(1.25)^2 - 7 = -3.125

f(x₄) = 2(1.75)^2 - 7 = 0.375

f(x₅) = 2(2.25)^2 - 7 = 4.875

f(x₆) = 2(2.75)^2 - 7 = 11.375

Calculate the Riemann sum: R_n = Δx * [f(x₁) + f(x₂) + f(x₃) + f(x₄) + f(x₅) + f(x₆)].

R₆ = 0.5 * [-6.875 + (-5.625) + (-3.125) + 0.375 + 4.875 + 11.375] = 10.875.

The Riemann sum with n = 6 and midpoints as sample points, in this case, gives an approximation of the definite integral of f(x) = 2x^2 - 7 over the interval [0, 3]. The value of the Riemann sum (10.875) represents an estimation of the area between the curve of f(x) and the x-axis within the given interval.

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Let F = 5(x+y)i+4sin(y). Find the line integral of F around the perimeter of the rectangle with corners (5,0), (5,2), ( 2, 2), (-2,0), traversed in that order.

Answers

The line integral of F around the perimeter of the given rectangle is equal to 20.

To find the line integral, we need to parameterize the path along the perimeter of the rectangle and calculate the line integral of F along that path.

The perimeter of the rectangle consists of four line segments: (5,0) to (5,2), (5,2) to (2,2), (2,2) to (-2,2), and (-2,2) to (-2,0).

Let's go through each segment one by one:

(5,0) to (5,2):

Parameterize this segment as r(t) = (5, t), where 0 ≤ t ≤ 2. The differential vector dr = (0, dt).

Substitute the parameterization into F: F(r(t)) = 5(5 + t)i + 4sin(t).

Calculate the dot product: F(r(t)) · dr = [5(5 + t)i + 4sin(t)] · (0, dt) = 0 + 4sin(t)dt = 4dt.

Integrate over the interval: ∫[0,2] 4dt = [4t] from 0 to 2 = 4(2 - 0) = 8.

Parameterize this segment as r(t) = (5 - t, 2), where 0 ≤ t ≤ 3. The differential vector dr = (-dt, 0).

Substitute the parameterization into F: F(r(t)) = 5(5 - t)i + 4sin(2) = (25 - 5t)i + 4sin(2).

Calculate the dot product: F(r(t)) · dr = [(25 - 5t)i + 4sin(2)] · (-dt, 0) = -(25 - 5t)dt.

Integrate over the interval: ∫[0,3] -(25 - 5t)dt = [-25t + (5t^2)/2] from 0 to 3 = -75 + 45/2 = -60/2 + 45/2 = -15/2.

(2,2) to (-2,2):

Parameterize this segment as r(t) = (t, 2), where 2 ≥ t ≥ -2. The differential vector dr = (dt, 0).

Substitute the parameterization into F: F(r(t)) = 5(t + 2)i + 4sin(2) = (5t + 10)i + 4sin(2).

Calculate the dot product: F(r(t)) · dr = [(5t + 10)i + 4sin(2)] · (dt, 0) = (5t + 10)dt.

Integrate over the interval: ∫[-2,2] (5t + 10)dt = [(5t^2)/2 + 10t] from -2 to 2 = (20 + 40)/2 = 60/2 = 30.

(-2,2) to (-2,0):

Parameterize this segment as r(t) = (-2, 2 - t), where 2 ≥ t ≥ 0. The differential vector dr = (0, -dt).

Substitute the parameterization into F: F(r(t)) = 5(-2 + 2 - t)i + 4sin(2 - t) = -ti + 4sin(2 - t).

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True/false: the slope of the simple linear regression model represents the average change in the value of the dependent variable (y) per unit change in the independent variable (x).

Answers

The statement the slope of the simple linear regression model represents the average change in the value of the dependent variable (y) per unit change in the independent variable (x) is true because the slope represents the rate of change between the variables.

The slope in a simple linear regression model represents the change in the dependent variable (y) corresponding to a one-unit change in the independent variable (x). It measures the average rate of change between the variables. By calculating the slope coefficient, we can determine the average increase or decrease in the value of y for each unit increase in x.

For example, if the slope coefficient is 2, it means that, on average, for every one-unit increase in x, the value of y increases by 2 units. Similarly, if the slope coefficient is -1, it means that, on average, for every one-unit increase in x, the value of y decreases by 1 unit.

Therefore, the slope of the simple linear regression model quantifies the average change in the value of the dependent variable (y) for each unit change in the independent variable (x).

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PLEASE HELP ME WITH CREAM ON TOP!!!!!!

Answers

Answer:

30.9°

Step-by-step explanation:

Since, x is the angle

So,

Opposite side = 9 cm

Adjacent side = 15 cm

Formula

tan x = Opposite side/Adjacent side

tan x = 9/15

tan x = 3/5

tan x = 0.6

x = tan-¹ (0.6)

x = 30.96°

Answer in 1 decimal place = x = 30.9°

The length of the hypotenuse and the opposite side to angle x of the right triangle are 15 cm and 9 cm respectively, which gives angle x as approximately 31.0°

Which of the trigonometric ratios can be used to find x°?

A description of the parts of the triangle are:

Length of the hypotenuse side = 15 cmLength of the opposite side to x° = 9 cm

The trigonometric ratio of the sine of x° is presented as follows;

[tex]\sf sin(x)=\dfrac{Opposite}{Hypotenuse}[/tex]

Therefore:

[tex]\sf sin(x)=\dfrac{9}{15}[/tex]

Which gives:

[tex]\sf x^\circ=arcsin \huge \text(\dfrac{9}{15}\huge \text) \thickapprox31.0^\circ[/tex]

[tex]\sf Angle \ x \thickapprox 31.0^\circ[/tex]

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divided the fraations ​

Answers

Answer:

please see detailed answers below

Step-by-step explanation:

to divide one fraction by another, just multiply the 2nd one upside down.

1) 2/7 ÷ 1/3  = 2/7 X 3/1 = 6/7

12) 1/2 ÷ 1/8 = 1/2 X 8/1 = 8/2 = 4

13) 3/8 ÷ 1/4 = 3/8 X 4/1 = 12/8 = 3/2

14) 2/5 ÷ 3/10 = 2/5 X 10/3 = 20/15 = 4/3

Here is' a quadrilateral PQRs . angle SRq is acute workout the size
Of angle SQR .

Answers

In a quadrilateral PQRS, the angle ∠ SQR is 91.6°.

Given information,

PS = 8 cm

PQ = 12 cm

QR = 9 cm

From Cosine law,

SQ² = PS² + PQ² - 2PS×PQ×cos120°

Putting values,

SQ² = 64 + 144 - (-96)

SQ² = 304

SQ = 17.34

From sine law,

SQ/sinR = QR/sin QSR

17.34/sinR = 9/sin27°

sinR = 17.34 × sin27°/17.34

sinR = 0.878

∠R = 61.4°

Therefore, the angle SQR,

∠SQR = 180 - 61.4° - 27°

∠SQR = 91.6°

Hence, ∠ SQR  is 91.6°.

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is the point below which a specified percentage of the observations fall.

Answers

In mathematics, the point below which a specified percentage of the observations fall is commonly referred to as the percentile.

A percentile is a measure that indicates the relative position of a particular value within a dataset.

For example, if a value is at the 80th percentile, it means that 80% of the observations in the dataset are below that value, and only 20% of the observations are above it.

Percentiles are often used to analyze and understand the distribution of data, especially in fields such as statistics, probability, and data analysis. They provide insights into how individual data points compare to the overall dataset and help identify outliers or extreme values.

A percentile is a statistical measure that indicates the relative standing of a particular value within a dataset. It represents the point below which a specified percentage of the observations or data points fall. Percentiles are primarily used to understand the distribution of data and analyze how individual values compare to the overall dataset.

To calculate a percentile, the dataset is arranged in ascending order, from the smallest value to the largest value. The position of a specific percentile is then determined based on the percentage of data points below it. For example, the 75th percentile represents the value below which 75% of the data points fall.

Percentiles are commonly used in various fields, including statistics, probability, and data analysis. They provide valuable insights into the spread, variability, and distribution of data. Here are a few key points to consider:

1. Median: The median is the 50th percentile, representing the value that divides the dataset into two equal halves. It is a measure of central tendency and provides information about the middle point of the distribution.

2. Quartiles: Quartiles divide the dataset into four equal parts. The first quartile, or the 25th percentile (Q1), represents the value below which 25% of the data points fall. The third quartile, or the 75th percentile (Q3), represents the value below which 75% of the data points fall. The difference between Q3 and Q1 is known as the interquartile range (IQR) and provides insights into the spread of the middle 50% of the data.

3. Percentile Ranks: Percentile ranks indicate the percentage of data points that are below a specific value. For example, if a student scores in the 80th percentile on a standardized test, it means they performed better than 80% of the test-takers.

4. Outliers: Percentiles can be useful in identifying outliers, which are data points that significantly deviate from the rest of the dataset. Extremely high or low percentiles may indicate unusual or extreme values that warrant further investigation.

5. Normal Distribution: In a normal distribution, the 50th percentile (median) coincides with the mean and mode, and specific percentiles have known standard deviations from the mean (e.g., the 68-95-99.7 rule).

Percentiles are versatile tools for summarizing and analyzing data, providing valuable insights into the distribution and relative positions of individual values. They enable comparisons and help make informed decisions based on the characteristics of a dataset.

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Roll two dice, and let Fe be the event that the first die is even, S4 the event that the second die is 4, and Σo the event that the sum of the two dice is odd. Which of the following events are independent:(a)Fe and S4,(b)Fe and Σo,(c)S4 and Σo,(d)Fe, S4, and Σo (determine if the three events are mutually independent).There might be one or more than one correct answers!

Answers

a. Fe and S4 are not independent.

b. Fe and Σo are independent.

c. S4 and Σo are independent.

d. Fe, S4, and Σo are not mutually independent.

What is probability?

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is.

To determine if the given events are independent, we need to check if the probability of their intersection is equal to the product of their individual probabilities.

(a) Fe and S4:

The event Fe: The first die is even.

The event S4: The second die is 4.

These events are independent if P(Fe ∩ S4) = P(Fe) * P(S4).

P(Fe) = 1/2 (since there are three even numbers out of six possible outcomes for the first die)

P(S4) = 1/6 (since there is only one 4 out of six possible outcomes for the second die)

P(Fe ∩ S4) = 1/12 (since there is only one outcome where the first die is even and the second die is 4)

P(Fe ∩ S4) = 1/12 ≠ (1/2) * (1/6) = 1/12

Therefore, Fe and S4 are not independent.

(b) Fe and Σo:

The event Σo: The sum of the two dice is odd.

These events are independent if P(Fe ∩ Σo) = P(Fe) * P(Σo).

P(Fe) = 1/2 (as mentioned above)

P(Σo) = 1/2 (since there are three odd sums out of six possible outcomes for the two dice)

P(Fe ∩ Σo) = 1/4 (since there are three outcomes where the first die is even and the sum is odd: (2, 1), (2, 3), (2, 5))

P(Fe ∩ Σo) = 1/4 = (1/2) * (1/2) = P(Fe) * P(Σo)

Therefore, Fe and Σo are independent.

(c) S4 and Σo:

The event S4: The second die is 4.

These events are independent if P(S4 ∩ Σo) = P(S4) * P(Σo).

P(S4) = 1/6 (as mentioned above)

P(Σo) = 1/2 (as mentioned above)

P(S4 ∩ Σo) = 1/6 (since there is only one outcome where the second die is 4 and the sum is odd: (1, 4))

P(S4 ∩ Σo) = 1/6 = (1/6) * (1/2) = P(S4) * P(Σo)

Therefore, S4 and Σo are independent.

(d) Fe, S4, and Σo:

To determine if these three events are mutually independent, we need to check if the probability of their intersection is equal to the product of their individual probabilities.

P(Fe ∩ S4 ∩ Σo) = P(Fe) * P(S4) * P(Σo)

P(Fe ∩ S4 ∩ Σo) = P(Fe) * P(S4) * P(Σo) = (1/2) * (1/6) * (1/2) = 1/24

However, there are no outcomes where all three events occur simultaneously. Therefore, P(Fe ∩ S4 ∩ Σo) = 0 ≠ 1/24.

Therefore, Fe, S4, and Σo are not mutually independent.

In summary, the events Fe and Σo are independent, while the events Fe and S4, as well as S4 and Σo, are not independent. Fe, S4, and Σo are not mutually independent.

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QUESTION 1 (22 Marks) The table below shows the Ingquza local municipality's domestic electricity tariffs at the low season TABLE 1: INGQUZA LOCAL MUNICIPALITY TARIFF FOR 2020/2021 BLOCK ELETRICITY USAGE IN (KWH) 50 Kwh 350 Kwh 600 Kwh 1000 Kwh TARIFF PER KWH EXCLUDING VAT (15%) RO. 9015 RI, 0161 R1.3594 ¡RI. 6314 R1, 8356 1 0.. 2 50,1. 3350.1 4 600.1.. 5 Greater than 1000 Kwh Use the information in the table above and answer the following questions: 1.11 Define the term tariff as used in the context: (2)​

Answers

In the context of the table provided, the term "tariff" refers to the price or rate per kilowatt-hour (kWh) of electricity consumption.

The table shows the Ingquza local municipality's domestic electricity tariffs at the low season.

In the context of the table provided, the term "tariff" refers to the price or rate per kilowatt-hour (kWh) of electricity consumption.

It represents the amount of money charged by the Ingquza Local Municipality for each unit of electricity used within specific usage blocks. The tariff is stated in South African Rand (ZAR) per kWh and is exclusive of the Value Added Tax (VAT) of 15%.

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Which statistical approach is one of the most powerful and yet simple methods for identifying outliers?a.Z-scoreb.N-gramsc.Soundex algorithmd.Time-trend analysis

Answers

The statistical approach that is one of the most powerful and yet simple methods for identifying outliers is the Z-score.

The Z-score is a measure of how many standard deviations a particular data point is away from the mean of a distribution. By calculating the Z-score for each data point, we can identify observations that fall significantly outside the expected range.

Typically, data points with a Z-score greater than a certain threshold (e.g., 2 or 3) are considered outliers. These outliers can represent extreme or unusual observations that deviate from the majority of the data.

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A company receives shipments from two factories. Depending on the size of the order, a shipment can be in 1 box for a small order, 2 boxes for a medium order 3 boxes for a large order The company has two different suppliers. Factory Q is 60 miles from the company Factory R is 180 miles from the company An experiment consists of monitoring a shipment and observing B, the number of boxes, and M, the number of miles the shipment travels. The following probabi ity model describes the experiment Factory Q Factory R small order medium order large order 0.3 0.1 0.1 0.2 0.2 0.1 (a) Find PB M(b, m), the joint PMF of the number of boxes and the distance (b) What is E[B], the expected number of boxes? (c) Are B and M independent?

Answers

c) If B and M are independent, then PB,M(b, m) = P(B = b) * P(M = m) for all

(a) To find the joint probability mass function (PMF) of the number of boxes (B) and the distance (M), we can use the given probability model.

The joint PMF PB,M(b, m) represents the probability that the shipment has b boxes and travels a distance of m miles. We can calculate this by multiplying the individual probabilities of the corresponding events.

The probability model given is:

Factory Q:

P(small order) = 0.3

P(medium order) = 0.1

P(large order) = 0.1

Factory R:

P(small order) = 0.2

P(medium order) = 0.2

P(large order) = 0.1

For each combination of B and M, we multiply the probability of the corresponding order size with the probability of the corresponding factory distance:

PB,M(1, 60) = P(small order) * P(Q) = 0.3 * 0.6 = 0.18

PB,M(1, 180) = P(small order) * P(R) = 0.3 * 0.4 = 0.12

PB,M(2, 60) = P(medium order) * P(Q) = 0.1 * 0.6 = 0.06

PB,M(2, 180) = P(medium order) * P(R) = 0.1 * 0.4 = 0.04

PB,M(3, 60) = P(large order) * P(Q) = 0.1 * 0.6 = 0.06

PB,M(3, 180) = P(large order) * P(R) = 0.1 * 0.4 = 0.04

The joint PMF of the number of boxes and the distance is as follows:

PB,M(1, 60) = 0.18

PB,M(1, 180) = 0.12

PB,M(2, 60) = 0.06

PB,M(2, 180) = 0.04

PB,M(3, 60) = 0.06

PB,M(3, 180) = 0.04

(b) To find the expected number of boxes E[B], we multiply each possible number of boxes by its corresponding probability and sum them up:

E[B] = 1 * PB,M(1, 60) + 1 * PB,M(1, 180) + 2 * PB,M(2, 60) + 2 * PB,M(2, 180) + 3 * PB,M(3, 60) + 3 * PB,M(3, 180)

Substituting the values we found in part (a):

E[B] = 1 * 0.18 + 1 * 0.12 + 2 * 0.06 + 2 * 0.04 + 3 * 0.06 + 3 * 0.04

= 0.18 + 0.12 + 0.12 + 0.08 + 0.18 + 0.12

= 0.8

The expected number of boxes is 0.8.

(c) To determine if B and M are independent, we need to check if the joint PMF can be expressed as the product of the individual PMFs.

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Find the general solution, y(t), which solves the problem below, by the method of integrating factors. dy 5t +y= ť? dt = Find the integrating factor, u(t) = and then find y(t) = (use C as the unkown constant.)

Answers

integrating factor -  y(t) = [∫e^((5/2)t^2) * ť dt + C] / e^((5/2)t^2)

What is Integrating factor?

An integrating factor is any function that is used as a multiplier for another function in order to solve that function; that is, the use of an integration factor allows an imprecise function to be exact.

To solve the given differential equation using the method of integrating factors, we'll follow these steps:

Step 1: Write the differential equation in the standard form:

dy/dt + P(t)y = Q(t)

In this case, the given differential equation is:

dy/dt + 5ty = ť

So, we have P(t) = 5t and Q(t) = ť.

Step 2: Find the integrating factor, u(t), using the formula:

u(t) = e^(∫P(t)dt)

In this case, P(t) = 5t, so integrating P(t) gives us:

∫P(t)dt = ∫(5t)dt = 5∫tdt = 5(t^2/2) = (5/2)t^2

Therefore, the integrating factor is:

u(t) = e^(∫P(t)dt) = e^((5/2)t^2)

Step 3: Multiply the original differential equation by the integrating factor:

e^((5/2)t^2) * dy/dt + 5te^((5/2)t^2) * y = e^((5/2)t^2) * ť

Step 4: Recognize the left-hand side as the result of the product rule:

(d/dt)(e^((5/2)t^2) * y) = e^((5/2)t^2) * ť

Step 5: Integrate both sides of the equation with respect to t:

∫(d/dt)(e^((5/2)t^2) * y) dt = ∫e^((5/2)t^2) * ť dt

This simplifies to:

e^((5/2)t^2) * y = ∫e^((5/2)t^2) * ť dt + C

Here, C is the constant of integration.

Step 6: Solve the integral on the right-hand side:

∫e^((5/2)t^2) * ť dt

Unfortunately, the integral on the right-hand side does not have a simple closed-form solution. It cannot be expressed in terms of elementary functions. Therefore, we cannot provide a specific expression for the integral.

Step 7: Divide both sides by e^((5/2)t^2) to solve for y(t):

y(t) = [∫e^((5/2)t^2) * ť dt + C] / e^((5/2)t^2)

In summary, the general solution to the given differential equation is:

y(t) = [∫e^((5/2)t^2) * ť dt + C] / e^((5/2)t^2)

Please note that the specific expression for the integral (∫e^((5/2)t^2) * ť dt) cannot be determined without further information about ť or without additional techniques such as numerical methods or power series methods.

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2x^3y + 18xy - 10x^2y - 90y

Part A: rewrite the expression so that the GCF is factored completely

Part B: rewrite the expression completely factored. Show the steps of your work

___________________________

Part A: the area of a square is (9x^2 + 24x + 16) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work.

Part B: the area of a rectangle is (16x^2 - 25y^2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work.

___________________________

f(x) = 2x^2 - 5x + 3

Part A: what are the x-intercepts of the graph of f(x)? Show your work

Part B: is the vertex of the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answer and show your work.


Part C: what are the steps you would use to graph f(x)? Justify that you can use the answer in part A and part B to draw the graph.

Answers

The solutions are:

1st part:

Part A: Rewriting the expression so that the greatest common factor (GCF) is factored completely is 2y(x³ + 9x - 5x - 45).

Part B: Rewriting the expression completely factored is 2y(x² + 9)(x - 5).

2nd part:

Part A:  each side is 3x+4

Part B: one side is  (4x-5y), and the other side is (4x+5y)

3rd part:

The vertex of the function is a minimum and the coordinate of the vertex of the function is (0.2, -2.4)

Here, we have,

1st part:

Here,

In order to rewrite the expression so that the greatest common factor (GCF) is factored completely, we would determine the coefficients of the expression as follows:

2x³y + 18xy − 10x²y − 90y

The coefficients include the following:

2, 18, 10, 90

The greatest common factor (GCF) of the above listed coefficients is equal to two (2) while y is the common term for the variables x³y, xy, x²y, and y.

Therefore, the greatest common factor (GCF) of this expression is 2y and it should be factored as follows:

2x³y + 18xy − 10x²y − 90y = 2y(x³ + 9x - 5x - 45)

Part B.

Rewriting expression completely factored, we have:

2x³y + 18xy − 10x²y − 90y = 2xy(x² + 9) - 10y(x² + 9)

2x³y + 18xy − 10x²y − 90y = (x² + 9)(2xy - 10y)

2x³y + 18xy − 10x²y − 90y = (x² + 9)2y(x - 5)

2x³y + 18xy − 10x²y − 90y = 2y(x² + 9)(x - 5)

2nd part:

part A

9x² +24x+16=

(3x)² +24x +4²=

(3x+4)² = (3x+4)(3x+4) so each side is 3x+4

Part B

16x² -25y²= (4x)² -(5y)²= (4x-5y)(4x+5y)

so one side is  (4x-5y), and the other side is (4x+5y)

3rd part:

The vertex of the function is a minimum and the coordinate of the vertex of the function is (0.2, -2.4)

Part A: What are the x-intercepts of the graph of f(x)

The function is given as:

f(x) = 5x^2 + 2x - 3

Expand the function

f(x) = 5x^2 + 5x - 3x - 3

Factorize the function

f(x) = (5x - 3)(x + 1)

Set the function to 0

(5x - 3)(x + 1) = 0

Solve for x

x = 3/5 and x =-1

Hence, the x-intercept is 3/5 and -1

Part B : Is the vertex of the graph of f(x) going to be a maximum or a minimum?

The vertex of the function is a minimum.

This is so because the leading coefficient of the function is positive

Here, we have:

f(x) = 5x^2 + 2x - 3

Differentiate and set to 0

10x + 2 = 0

Solve for x

x = -0.2

Substitute x = -0.2 in f(x) = 5x^2 + 2x - 3

f(0.2) = 5(0.2)^2 + 2(0.2) - 3

Evaluate

f(0.2) = -2.4

Hence, the vertex of the function is (0.2, -2.4)

Part C: What are the steps you would use to graph f(x)?

To do this, we simply plot the x-intercept and the vertex.

And then connect the points.

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15 points!
The net for a cylindrical candy container is shown.

net of a cylinder with diameter of both circles labeled 1.8 inches and a rectangle with a height labeled 0.8 inches

The container was covered in plastic wrap during manufacturing. How many square inches of plastic wrap were used to wrap the container? Write the answer in terms of π.

7.92π square inches
7.2π square inches
3.06π square inches
2.34π square inches

Answers

Answer: The amount of plastic wrap used to wrap the container is approximately 3.06π square inches.

Step-by-step explanation: To calculate the total surface area of the cylindrical candy container, we need to consider the area of the two circular ends (top and bottom) and the area of the curved surface (lateral area).

The area of each circular end is given by the formula: A = πr^2, where r is the radius. Since the diameter is given as 1.8 inches, the radius is half of that, which is 0.9 inches.

Area of each circular end = π(0.9)^2 = 0.81π square inches.

The area of the curved surface (lateral area) is given by the formula: A = 2πrh, where r is the radius and h is the height of the rectangle. The height is given as 0.8 inches.

Curved surface area = 2π(0.9)(0.8) = 1.44π square inches.

To find the total surface area, we add the areas of the two circular ends and the curved surface area:

Total surface area = 2(Area of circular ends) + Curved surface area

= 2(0.81π) + 1.44π

= 1.62π + 1.44π

= 3.06π square inches.

Therefore, the amount of plastic wrap used to wrap the container is approximately 3.06π square inches.

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A random sample of elementary school children in New York state is to be selected to estimate the proportion p who have received a medical examination during the past year. An interval estimate of the proportion p with a margin of error of 0.09 and 95% confidence is required. (a) Assuming no prior information about p is available, approximately how large of a sample size is needed? n = (b) If a planning study indicates that is around 0.9, approximately how large of a sample size is needed? n =

Answers

a) The formula to calculate the sample size required to estimate a population proportion for unknown values of the population proportion and margin of error at a certain level of confidence is given by:

$$n = \frac{z^2pq}{E^2}$$

Where, z is the z-score associated with the level of confidence, p is the estimated population proportion, q is 1-p, and E is the margin of error. According to the given problem, the margin of error E = 0.09 and the confidence level is 95%. Thus, the value of z corresponding to this level of confidence is 1.96 (approx.). We don't have any prior information about the population proportion, therefore, we can take the maximum possible value for p, which is 0.5, because it makes the sample size maximum (due to maximum variance) and the margin of error maximum (due to minimum standard error).

Therefore,

p = 0.5 and q = 1 - p = 0.5.

Substituting these values in the formula for sample size, we get:

$$n = \frac{1.96^2 \times 0.5 \times 0.5}{0.09^2} \approx. \boxed{96}$$

Therefore, approximately 96 elementary school children need to be selected to estimate the proportion p who have received a medical examination during the past year with a margin of error of 0.09 and 95% confidence.

b) If prior information about the population proportion is available, the sample size can be determined using the formula:

$$n = \frac{z^2p'q'}{E^2}$$

Where,

p' is the estimated value of the population proportion obtained from prior information. In this case, p' = 0.9, and q' = 1 - p' = 0.1. All other values are the same as in part

(a).Substituting these values in the formula, we get:$$n = \frac{1.96^2 \times 0.9 \times 0.1}{0.09^2} \approx. \boxed{59}$$

Therefore, approximately 59 elementary school children need to be selected to estimate the proportion p who have received a medical examination during the past year with a margin of error of 0.09 and 95% confidence, assuming prior information about the population proportion is available.

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5(x - 7) = 10 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, .

Answers

Answer:

x = 9

Step-by-step explanation:

5(x - 7) = 10

5x - 35 = 10

5x = 45

x = 9

Answer

x = 9

Step-by-step explanation

For now, I will focus on the left hand side of the equation and simplify it as much as I can.

[tex]\sf{5(x-7)=10}[/tex]

[tex]\sf{5x-35=10}[/tex]

Now we move on to the right hand side too. Subtract 35 from each side:

[tex]\sf{5x=10+35}[/tex]

[tex]\sf{5x=45}[/tex]

Divide each side by 5

[tex]\sf{x=9}[/tex]

Therefore x = 9

19-3x6+2
Insert parenthesis to make it equal 128.

Answers

Answer:

(19-3) x (6+2)

Step-by-step explanation:

(19-3) x (6+2) = (16) x (8) = 128

Approximate the value of the series to within an error of at most 10^(−5).

[infinity]∑n=1 (−1)^(n+1)/n^7

According to Equation (2):

|SN−S|≤aN+1

what is the smallest value of N that approximates S to within an error of at most 10^(−5)?
N=

S≈

Answers

the approximation of S is approximately -0.992583715.

To approximate the value of the series within an error of at most 10^(-5), we need to find the smallest value of N that satisfies the inequality:

|SN - S| ≤ aN+1

where SN represents the partial sum of the series up to the Nth term, S represents the actual sum of the series, and aN+1 represents the error bound.

For the given series:

∑(n=1 to ∞) (-1)^(n+1)/n^7

The general term of the series can be written as:

an = (-1)^(n+1)/n^7

To approximate S within an error of at most 10^(-5), we need to find the smallest N such that aN+1 ≤ 10^(-5).

Let's calculate the terms until we find the first term that satisfies the inequality:

a1 = (-1)^(1+1)/1^7 = -1

a2 = (-1)^(2+1)/2^7 = 1/128 ≈ 0.0078125

a3 = (-1)^(3+1)/3^7 = -1/2187 ≈ -0.00045725

a4 = (-1)^(4+1)/4^7 = 1/16384 ≈ 0.000061035

...

By calculating subsequent terms, we find that a4 ≈ 0.000061035 is the first term that is less than or equal to 10^(-5).

Therefore, the smallest value of N that approximates S to within an error of at most 10^(-5) is N = 4.

To find the approximation of S, we calculate the partial sum up to the 4th term:

S ≈ a1 + a2 + a3 + a4

  ≈ -1 + 0.0078125 - 0.00045725 + 0.000061035

  ≈ -0.992583715

the approximation of S is approximately -0.992583715.

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Need help with number 2?

Answers

The system of equations that can be used to determine the amount each player earned, in million of dollars is the option;

(4) m + f = 3.95

f + 0.005 = m

What is a system of equations?

A system of equation consists of two or more equations that have the same variables.

The details in the question indicates;

The earnings of football player McGee's in 2010, m = 0.005 million dollars more than those of his teammate Fitzpatrick's earnings, f

The amount earned by the two players = 3.95 million dollars

Therefore, we get;

m + f = 3.95

f + 0.005 = m

The correct option is therefore, option 4

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A researcher wants to investigate the relationship between number of alcoholic beverages consumed and short term memory. She records the number of drinks people consume in a 2 hour period and then gives them a memory test (lower scores indicate less was remembered, whereas higher scores indicate more was remembered). Her data is below. Calculate the Pearson bivariate correlation coefficient.DrinksMemory110192104865091937

Answers

the Pearson bivariate correlation coefficient (r) for the given data is approximately 0.257.

To calculate the Pearson bivariate correlation coefficient, we need to determine the correlation between the number of drinks consumed and the memory scores. Let's label the number of drinks as variable X and the memory scores as variable Y.

Given the following data:

X = [1, 1, 0, 1, 0, 9, 1, 0, 9, 3, 7]

Y = [10, 19, 21, 04, 86, 50, 91, 93, 7]

First, we need to calculate the means (average) of X and Y.

Mean of X ([tex]\bar{X}[/tex]):

[tex]\bar{X}[/tex] = (1 + 1 + 0 + 1 + 0 + 9 + 1 + 0 + 9 + 3 + 7) / 11 = 32 / 11 ≈ 2.909

Mean of Y ([tex]\bar{Y}[/tex]):

[tex]\bar{Y}[/tex]= (10 + 19 + 21 + 04 + 86 + 50 + 91 + 93 + 7) / 9 = 381 / 9 ≈ 42.333

Next, we need to calculate the standard deviations of X and Y.

Standard deviation of X (sX):

sX = √[((1 - [tex]\bar{X}[/tex])² + (1 - [tex]\bar{X}[/tex])² + (0 - [tex]\bar{X}[/tex])² + (1 - )² + (0 - [tex]\bar{X}[/tex])² + (9 - [tex]\bar{X}[/tex])² + (1 - [tex]\bar{X}[/tex])² + (0 - [tex]\bar{X}[/tex])² + (9 - [tex]\bar{X}[/tex])² + (3 - [tex]\bar{X}[/tex])² + (7 - [tex]\bar{X}[/tex])²) / (n - 1)]

where n is the number of data points, which is 11 in this case.

sX = √[((1 - 2.909)² + (1 - 2.909)² + (0 - 2.909)² + (1 - 2.909)² + (0 - 2.909)² + (9 - 2.909)² + (1 - 2.909)² + (0 - 2.909)² + (9 - 2.909)² + (3 - 2.909)² + (7 - 2.909)²) / (11 - 1)]

sX = √[((-1.909)² + (-1.909)² + (-2.909)² + (-1.909)² + (-2.909)² + (6.091)² + (-1.909)² + (-2.909)² + (6.091)² + (0.091)² + (4.091)²) / 10]

sX = √[(3.641 + 3.641 + 8.433 + 3.641 + 8.433 + 37.296 + 3.641 + 8.433 + 37.296 + 0.008 + 16.749) / 10]

sX = √[128.621 / 10]

sX = √12.8621

sX ≈ 3.589

Standard deviation of Y (sY):

sY = √[((10 - 42.333)² + (19 - 42.333)² + (21 - 42.333)² + (04 - 42.333)² + (86 - 42.333)² + (50 - 42.333)² + (91 - 42.333)² + (93 - 42.333)² + (7 - 42.333)²) / (9 - 1)]

sY = √[((-32.333)² + (-23.333)² + (-21.333)² + (-38.333)² + (43.667)² + (7.667)² + (48.667)² + (50.667)² + (-35.333)²) / 8]

sY = √[(1051.444 + 545.778 + 453.111 + 1473.778 + 1901.444 + 58.778 + 2366.444 + 2566.444 + 1250.778) / 8]

sY = √[12116.209 / 8]

sY = √1514.526

sY ≈ 38.922

Finally, we can calculate the Pearson bivariate correlation coefficient (r):

r = Σ[(X - [tex]\bar{X}[/tex])(Y - [tex]\bar{Y}[/tex])] / √[Σ(X - [tex]\bar{X}[/tex])² * Σ(Y - [tex]\bar{Y}[/tex])²]

r = [(1 - 2.909)(10 - 42.333) + (1 - 2.909)(19 - 42.333) + (0 - 2.909)(21 - 42.333) + (1 - 2.909)(04 - 42.333) + (0 - 2.909)(86 - 42.333) + (9 - 2.909)(50 - 42.333) + (1 - 2.909)(91 - 42.333) + (0 - 2.909)(93 - 42.333) + (9 - 2.909)(7 - 42.333) + (3 - 2.909)(7 - 42.333)] / [√[(1 - 2.909)² + (1 - 2.909)² + (0 - 2.909)² + (1 - 2.909)² + (0 - 2.909)² + (9 - 2.909)² + (1 - 2.909)² + (0 - 2.909² + (9 - 2.909)² + (3 - 2.909)² + (7 - 2.909)²) * √[(10 - 42.333)² + (19 - 42.333)² + (21 - 42.333)² + (04 - 42.333)² + (86 - 42.333)² + (50 - 42.333)² + (91 - 42.333)² + (93 - 42.333)² + (7 - 42.333)²)]

r = [(-1.909)(-32.333) + (-1.909)(-23.333) + (-2.909)(-21.333) + (-1.909)(-38.333) + (-2.909)(43.667) + (6.091)(7.667) + (-1.909)(48.667) + (-2.909)(50.667) + (6.091)(-35.333) + (0.091)(-35.333)] / [√[3.641 + 3.641 + 8.433 + 3.641 + 8.433 + 37.296 + 3.641 + 8.433 + 37.296 + 0.008 + 16.749) * √[1051.444 + 545.778 + 453.111 + 1473.778 + 1901.444 + 58.778 + 2366.444 + 2566.444 + 1250.778]

r = [61.743 + 44.645 + 63.367 + 73.315 + 100.245 + 46.661 + 47.046 + 88.464 - 214.025 - 2.503] / [√130.888 * 1514.526]

r = 346.958 / [37.414 * 38.922]

r ≈ 0.257

Therefore, the Pearson bivariate correlation coefficient (r) for the given data is approximately 0.257.

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One diagonal of a rhombus if 4 times the length of the other diagonal. The area of the rhombus is 90 square feet.Identify an equation that can be used to find the length of each diagonal, and find both. Let x represent the length of the shorted diagonal.

Answers

The equation to calculate the length is 4x²/2 = 90 and the diagonals are 3√5 and 12√5

Identifying the equation that can be used to find the length of each diagonal

From the question, we have the following parameters that can be used in our computation:

One diagonal is 4 times the length of the other

The area of the rhombus is 90 square feett

This means that

y = 4x

Where

x = short diagonal

The area of the rhombus is then calculated as

A = xy/2

So, we have

A = 4x²/2

The area is 90

So, we have

4x²/2 = 90

So, we have

x² = 90 * 2/4

Evaluate

x² = 45

Take the square roots

x = 3√5

Next, we have

y = 4 * 3√5

Evaluate

y = 12√5

Hence, the equation to calculate the length is 4x²/2 = 90

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Which company has the lower initial cost, and what is that initial amount?

Answers

The SOS company has the lower initial cost with $10 as initial amount.

Given that are two companies with their different plans for homework help,

The SOS company's graph is given, and the Lifeline company says you can pay $25 as a registration fee and then can continue with $0.40 for each minute.

We are asked to compare the plans for each company to check which company has a lower initial cost.

So,

In SOS, there is $10 for 0 minutes, and the in lifeline company there is a $25 as a registration fee.

Since, $25 > $10, so people will prefer the SOS more.

Hence the SOS company has the lower initial cost with $10 as initial amount.

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(a) for what values of x is [infinity] xn n! n = 0 convergent?

Answers

The series [infinity] xn n! n = 0 converges for all real values of x.

The given series [infinity] xn n! n = 0 is a power series with terms xn n! n. To determine the values of x for which the series converges, we can use the ratio test.

The ratio test states that if the limit of the absolute value of the ratio of consecutive terms is less than 1, then the series converges. Let's apply the ratio test to the given series:

lim┬(n→∞)⁡〖|(x(n+1)(n+1)!)/(xn n!)|〗

Simplifying the expression:

lim┬(n→∞)⁡〖|(x(n+1))/(xn)| * 1/(n+1)|〗

As n approaches infinity, the ratio x(n+1)/xn approaches x/x = 1. Additionally, the term 1/(n+1) approaches 0. Therefore, the limit simplifies to:

lim┬(n→∞)⁡〖|1 * 0| = 0|〗

Since the limit is less than 1, the ratio test confirms that the given series converges for all real values of x.

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T/F: the dimension of each eigenspace equals the algebraic multiplicity of the corresponding eigenvalue.

Answers

True, the dimension of each eigenspace is indeed equal to the algebraic multiplicity of the corresponding eigenvalue.

Let's first define what eigenspaces and algebraic multiplicities are in the context of linear algebra. An eigenspace associated with an eigenvalue λ is the set of all vectors in a vector space that are mapped to scalar multiples of themselves by a linear transformation. The algebraic multiplicity of an eigenvalue λ is the number of times λ appears as a root of the characteristic polynomial of the linear transformation.

The statement is true because each eigenvalue corresponds to a distinct eigenspace, and the dimension of an eigenspace is determined by the number of linearly independent eigenvectors associated with that eigenvalue. The algebraic multiplicity of an eigenvalue counts the number of times that eigenvalue appears as a root of the characteristic polynomial, which in turn corresponds to the number of linearly independent eigenvectors.

To see why this is the case, consider the Jordan canonical form, which provides a way to decompose a matrix into blocks representing distinct eigenspaces. Each block corresponds to an eigenvalue, and the size of each block is equal to the algebraic multiplicity of that eigenvalue. Since the dimension of an eigenspace is equal to the number of linearly independent eigenvectors, it follows that the dimension of each eigenspace is equal to the algebraic multiplicity of the corresponding eigenvalue.

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Alvin and Simon shared £540 in the ratio 4 : 5
Alvin gave half of his share to Theo.
Simon gave a tenth of his share to Theo.
What fraction of the £540 did Theo receive?

Answers

Solution: simon has 300 + 24 so 324/540 can be simplified to

Answer : 3/5


3. Consider a process consisting of three resources. Assume there exists unlimited demand for the product. • Resource 1 has a processing time of 6 minutes per unit. • Resource 2 has a processing time of 3 minutes per unit. • Resource 3 has a processing time of 5 minutes per unit. All three resources are staffed by one worker. d. Draw a process flow diagram of this process. e. What is the capacity of resource 2? f. What is the bottleneck in the process? g. What is the utilization of resource 2? h. How long does it take the process to produce 200 units starting with an empty system, assuming this is a worker-paced process?

Answers

e. The capacity is 1/3 units per minute.

f. Resource 2 is the bottleneck.

g. The utilization of Resource 2 would be 100%

h. It would take 2800 minutes for the process to produce 200 units starting with an empty system in a worker-paced process.

d. Process Flow Diagram:

Start --> Resource 1 (6 minutes) --> Resource 2 (3 minutes) --> Resource 3 (5 minutes) --> End

e. The capacity of Resource 2 is the number of units it can process in a given time. Since Resource 2 has a processing time of 3 minutes per unit, its capacity is 1/3 units per minute.

f. The bottleneck in the process is the resource that has the lowest capacity. In this case, Resource 2 has the lowest capacity (1/3 units per minute) compared to Resource 1 (1/6 units per minute) and Resource 3 (1/5 units per minute). Therefore, Resource 2 is the bottleneck.

g. Utilization of Resource 2 is the actual production rate divided by its capacity. Since the process is worker-paced and there is one worker for each resource, the utilization of Resource 2 would be 100% as the worker is always occupied.

h. To calculate the time it takes to produce 200 units starting with an empty system, we need to consider the processing times of each resource. Resource 1 takes 6 minutes per unit, Resource 2 takes 3 minutes per unit, and Resource 3 takes 5 minutes per unit.

Assuming that the worker is continuously working and there are no delays or interruptions, the total time required would be:

Total Time = (6 minutes + 3 minutes + 5 minutes) * 200 units

          = 14 minutes * 200 units

          = 2800 minutes

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Sage belongs to a bird-watching club. Every two days, she goes out and counts the number of Black-hooded Parakeets she sees. The scatter plot shows the number of parakeets she saw in the past 12 days. Sage did not look for birds on day 8. If she had gone out on day 8, how many black-hooded parakeets would she likely have seen, based on the line of best fit?

Answers

The number of black- hooded parakeets savant would  Probably have seen on day 8, we can use the line of stylish fit from the  smatter plot.  

Grounded on the line of stylish fit, we observe a general trend in the data points. It appears that as the days progress, the number of black- hooded parakeets savant sees tends to increase. By extending the line of stylish fit to day 8, we can estimate the likely number of parakeets she'd have seen.  

To make the estimation, we  detect day 8 on the x-axis of the  smatter plot and draw a  perpendicular line up to the line of stylish fit. The corresponding y- value on the line represents the estimated number of parakeets Sage would  probably have seen on day 8.  

Since the  smatter plot isn't  handed in the question, I'm  unfit to determine the exact value of the estimated number of parakeets on day 8. still, by following the  way mentioned  over, you can  relate to the  smatter plot and use the line of stylish fit to estimate the likely number of black- hooded parakeets savant would have seen on day 8.

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find the curve in the xy-plane that passes through the point (4,5) and whose slope at each point is 3√(x). Y= _____

Answers

The equation of the curve is: y = [tex]2x^(^3^/^2^) - 11[/tex]

How to find the curve ?

To find the curve in the xy-plane that passes through the point (4, 5) and has a slope of 3√(x) at each point, we can integrate the given slope function to obtain the equation of the curve.

The slope function is given as: dy/dx = 3√(x)

Integrating both sides with respect to x:

∫ dy = ∫ 3√(x) dx

Integrating the left side with respect to y gives us y:

y = ∫ 3√(x) dx

To integrate 3√(x), we can rewrite it as 3[tex]x^(^1^/^2^)[/tex]:

y = 3 ∫ [tex]x^(^1^/^2^)[/tex]dx

Integrating [tex]x^(^1^/^2^)[/tex] gives us (2/3)[tex]x^(^3^/^2^)[/tex]:

y = 3 * (2/3)[tex]x^(^3^/^2^)[/tex] + C

Simplifying:

y = 2[tex]x^(^3^/^2^)[/tex] + C

Now, we can use the given point (4, 5) to determine the value of the constant C:

5 = [tex]2(4)^(^3^/^2^) + C[/tex]5 = 2(8) + C5 = 16 + CC = 5 - 16C = -11

Therefore, the equation of the curve that passes through the point (4, 5) and has a slope of 3√(x) at each point is:

y = [tex]2x^(^3^/^2^) - 11[/tex]

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Help! Its due tonight and I need help! which variable has the greatest effect on dynamic fluid forces? a. relative velocity of the object with respect to the fluid b. surface area of the object c. none of the above d. fluid density what hidden menu might exist to help with device calibration to enter the body cavity, which systems did you have to go through? pig disection Lines 7499: How does the author organize the peoples list of demands? Summarize the demands the ideas and practices that postulate reality beyond that which is immediately available to the senses are known in anthropology as Following the convergence of Nat Turner's revolt and William Lloyd Garrison's publication of the abolitionist Liberator in 1831:A) masters had less fear of slave revolts.B) state laws prohibiting manumission were passed in the South.C) laws protecting slaves from overly severe treatment were repealed.D) the material conditions for slaves worsened.E) the slaves' expectations of freedom were heightened. how many meals were serve per labor minute if 13 fte s produced 1350 meals in a 40 hour week? portfolio a has a standard deviation of 10% and an expected return of 5%. Stock B has an standard deviation of 10% and expected return of 15%. Suppose, we create a portofolio with 50% weight in stock A and 50% weight in Stock B. The portofolio has a standard deviation of 7.5%. What is the correlation between stock A and stock B?a. 0.5 b. -1c. 1d. 0 the experience of the 1970s led keynesian economists to understand that monetary policy was: test marketing is a trial mini-launch of a product in limited areas that represent the potential market. True or false. all token economy systems should include a response cost component. Endospores appear as colorless areas in a simple stain and gram stains in an endospore-forming bacterium Clostridium difficile. Why are the endospores not stained by this procedure although the stains are direct stains? the three lymphocytes that play a role in health and disease are __________. for water fleas of the genus daphnia switching from a pattern a nurse is caring for a 7-year-old client with down syndrome. the nurse uses what approach to best implement appropriate care for the client? which of the following does not open when the lower portion of a split button is clicked? when diving, penguins take in a lot of salt water. how do they get rid of the excess salt? true/false : A sonnet (14 lines of rhyming iambic pentameter) that divides into an octave (8) and sestet (6). There is a "volta," or "turning" of the subject matter between the octave and sestet. Volta means "turn" in Italian; thus, the shift. Rhyme scheme of Italian sonnet is abbaabba for first 8 lines and then, it gets iffy. The sestet can vary, but it's a mixtureofc,d,ande. phone networks, the internet, and other networks with large amounts of traffic use atm. true or false