need some help figuring out these functions questions ASAP

Need Some Help Figuring Out These Functions Questions ASAP
Need Some Help Figuring Out These Functions Questions ASAP
Need Some Help Figuring Out These Functions Questions ASAP
Need Some Help Figuring Out These Functions Questions ASAP

Answers

Answer 1

The value of (sin x + cos x)(tan x + cot x) = sec x + csc x is proven using the trigonometric identities.

What are trigonometric identities?

Equations involving trigonometric functions that hold true for all possible values of the variables are known as trigonometric identities.

Identity instances include:

Mutual identities:

1/sin x 1/sec x 1/cos x 1/cot x 1/tan x = csc x

Identity of a quotient: tan = sin x/cos x, cot = cos x/sin x

These are only a few of the numerous trigonometric identities that are available. It's crucial to understand these identities in order to solve trigonometry difficulties.

The given identity is (sin x + cos x)(tan x + cot x) = sec x + csc x.

Taking the LHS we have:

(sin x + cos x)(tan x + cot x)

According to distributive property:

= sin x tan x + sin x cot x + cos x tan x + cos x cot x

Using, definitions of tangent and cotangent:

= sin x (sin x/cos x) + sin x (cos x/sin x) + cos x (sin x/cos x) + cos x (cos x/sin x)

= sin² x/cos x + sin x cos x/sin x + cos x sin x/cos x + cos² x/sin x

= sin² x/cos x + cos² x/sin x + 2sin x cos x/sin x cos x

Using, trigonometric identity sin² x + cos² x = 1:

= (sin² x + cos² x)/cos x sin x + 2

= 1/cos x sin x + 2

= (1/cos x)(1/sin x) + 2

= sec x csc x + 2

= sec x + csc x + 2

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Related Questions

The accompanying table shows the value of a car over time that was purchased for 13100 dollars, where x is years and y is the value of the car in dollars. Write an exponential regression equation for this set of data, rounding all coefficients to the nearest hundredth. Using this equation, determine the value of the car, to the nearest cent, after 11 years.

Answers

13303.492 ×  (0.875)¹⁰ is  an exponential regression equation for this set of data, rounding all coefficients to the nearest hundredth.

What in mathematics is an exponential?

The formula for an exponential function is f (x) = ax, where x is a variable and an is a constant that serves as the function's basis and must be bigger than 0.

                           The transcendental number, or e, which is roughly equivalent to 2.71828, is the most often used exponential function basis. Calculating the exponential growth or decay of a given collection of data is done mathematically using an exponential function.

According to the question,

  x : 0             1            2        3          4           5             6    

 y  :  13100   11124   10572   9365  8067    6507       6892

so the function

 y = 13303.492 ×  (0.875)ˣ

when x = 10 ,

    y = 13303.492 ×  (0.875)¹⁰   ≈  3500

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Name
9 Roberto knows that in the triangle below the measure of angle A plus the
measure of angle 8 will equal the measure of angle ACD.
A
What is the value of x?
A 20
B 35
C 55
110°
D C
D 40
70°
2xº
Date
B

Answers

angle ACD=20°

Therefore option A is correct

How do we calculate?

ABCD is a cyclic quadrilateral..

so angle b+ angle D = 180°

angle d = 180°-110°

angle d=70°

AB is the diameter

so angle ACB is 90°

angle CAB+ Angle ABC+ Angle BCA =180° ( corrresponding to angle sum property)

=70°+90°+BAC=180°

angle BAC=20°

We have seen that angle BAC= angle ACD (interior alternate) (because in trapezium it's parallel)

Therefore angle ACD=20°

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A bag contains:
5 red marbles
6 blue marbles
3 green marbles
4 black marbles
2 yellow marbles
A marble will be drawn from the bag and replaced 100 times. What is reasonable prediction for the number of times a green or black marble will be drawn?

Answers

The reasonable prediction through which a green or black marble will be drawn is 35 times.

What about prediction?

In mathematics, prediction refers to the process of using existing data or patterns to make an educated guess about a future event or outcome. It is the process of estimating an unknown value or quantity based on a set of known data or observations.

Prediction is often used in statistics, where data analysis techniques are used to identify patterns and trends in data. Once these patterns are identified, they can be used to make predictions about future events or outcomes. For example, in finance, prediction models are often used to forecast stock prices or market trends.

The accuracy of predictions in mathematics can be improved by using more data, improving the quality of the data, or refining the models and algorithms used to make the predictions. However, even with the best models and data, there is always some degree of uncertainty or error associated with predictions, and this should be taken into account when using predictions to make decisions.

According to the given information:

Given, there are  5 red marbles, 6 blue marbles, 3 green marbles

4 black marbles, 2 yellow marbles .

Here, it is given that marble will be drawn and replace 100 times.

To find reasonable prediction for no of times green or black marble will be drawn

⇒ Total no of times = 100 times

⇒ [tex]\frac{4}{20}[/tex] x 100 +   [tex]\frac{3}{20}[/tex]  x 100

⇒ [tex]\frac{7}{20}[/tex]  x 100

⇒ 35 times

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Solve the following quadratic by
completing the square.
y = x² - 4x + 1
X = [?] ± +√[]

Answers

Answer:

x^2 - 4x + 1 = 0

x^2 - 4x + 4 = 3

(x - 2)^2 = 3

x - 2 = +√3

x = 2 + √3

Answer:

x = 2 ± √3

Step-by-step explanation:

     x² - 4x + 1 = 0

          x² - 4x = -1

Divide the co-efficient of x by 2. Co-efficient of x is 4, 4÷ 2 = 2.

Add the square of 2 to both sides. Square of 2 is 4.

    x² - 4x + 4 = -1 + 4

x² - 2*2x + 2² = 3

{LHS is in the from a² - 2ab + b² = (a -b)²}

          (x - 2)² = 3

Take square root,

          x - 2 = ±√3

Add 2 to both sides,

               x = 2 ± √3

!AP Caculus!
Given f(x) = x^5 -2x^2 + 2, what is f '(1)?

Answers

Answer:

Step-by-step explanation:

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

f(1)=1-2+2

f(1)=1

The point (4, 4) is a solution to which equation?

Answers

The point (4, 4) is a solution to the equation 2y + x = 12 because it is on the graph of that equation. However, the point (4, 4) is not on the graph of the equation y = x – 2. Therefore, (4, 4) cannot be a solution to the system of equations.

I NEED THIS MY TOMARROW

Answers

47) Given the above f(30) = 4(30) - 3 = 117.

48) The differences between the areas are 5 and 16, respectively, which are not the same.
49) The range of an arithmetic sequence is also discrete, since the terms of the sequence are usually integers.
50) the range of an arithmetic sequence can contain both positive and negative numbers.

What is the explanation for the above response?

47- We can see that the areas of the figures form an arithmetic sequence. The common difference is 4, since each subsequent figure has 4 more square inches than the previous one. The first term is 1, so the function that represents this arithmetic sequence is f(n) = 4n - 3, where n is the number of the figure.

Thus, f(30) = 4(30) - 3 = 117.

48- We can see that the areas of the figures do not form an arithmetic sequence. The differences between the areas are 5 and 16, respectively, which are not the same.

49- The domain of an arithmetic sequence is discrete, since it consists of a set of integers. The range of an arithmetic sequence is also discrete, since the terms of the sequence are usually integers.

50- Your friend is not entirely correct. While it is true that the domain of an arithmetic sequence is a set of positive integers and the output values either constantly increase or constantly decrease, this does not necessarily mean that the range contains only positive or negative numbers.

For example, consider the arithmetic sequence with first term 0 and common difference 1/2: 0, 1/2, 1, 3/2, 2, ... The range of this sequence includes both positive and negative numbers. Therefore, the range of an arithmetic sequence can contain both positive and negative numbers.

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Find out how much a retirement account based on a principal of $100509 compounded 5% quarterly after 29 years is worth?

Round your answer to 2 decimal places.

Answers

After 29 years of compounded interest at a rate of 5% quarterly, the retirement account would be worth approximately $455527.25.

What is compound interest?

The interest that is calculated using both the principal and the interest that has accrued during the previous period is called compound interest. It differs from simple interest in that the principal is not taken into account when determining the interest for the subsequent period with simple interest.

We can use the formula for compound interest to find the future value of the retirement account:

[tex]FV = P(1 + r/n)^{(nt)[/tex]

where FV is the future value, P is the principal, r is the annual interest rate, n is the number of times interest is compounded per year, and t is the time in years.

In this case, P = $100509, r = 0.05 (5% expressed as a decimal), n = 4 (since interest is compounded quarterly), and t = 29. Plugging these values into the formula, we get:

[tex]FV = $100509(1 + 0.05/4)^{(4*29)[/tex]

FV ≈ $455527.25

Therefore, after 29 years of compounded interest at a rate of 5% quarterly, the retirement account would be worth approximately $455527.25.

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what is the volume of the prism shown by the net The net forms a right rectangular prism.​

Answers

The volume of the right rectangular prism is 1/18 cubic feet.

What is a rectangular prism?

A rectangular prism is a three-dimensional shape with six rectangular faces. It is also known as a rectangular parallelepiped or a rectangular cuboid.

The volume of a rectangular prism is given by the formula V = lwh, where l, w, and h are the length, width, and height of the prism, respectively.

In this case, the length l is 2/3 ft, the width b is 1/3 ft, and the height h is 1/4 ft. Therefore, the volume of the prism is:

V = lbh = (2/3 ft)(1/3 ft)(1/4 ft) = 1/18 cubic feet

So the volume of the right rectangular prism is 1/18 cubic feet.

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Robert has taken three classes so far. Each class has been a 3 credit hour class. In his classes, he has received two Bs (which calculates as a 3.0/class for purposes of his GPA) and one C (which calculates as a 2.0 for purposes of his GPA). Robert recently learned that there is a minimum GPA needed for him to remain in good standing. He asks you if you think he is in good standing, or if he should be worried.
a. What is Robert’s cumulative GPA? To calculate this, add his GPA for each of his classes and divide by the number of classes he has taken.
b. Should Robert be worried about meeting SAP?
c. Explain why or why not.
d. Which SAP criterion relates to this scenario?

Answers

a. Robert's cumulative GPA can be calculated by adding the grade point values for each of his classes and dividing by the number of classes he has taken:  GPA = 2.67

what is  cumulative GPA  ?

Cumulative GPA (Grade Point Average) is a measure of a student's overall academic performance, which takes into account the grade points earned in all of the courses taken by the student.

In the given question,

a. Robert's cumulative GPA can be calculated by adding the grade point values for each of his classes and dividing by the number of classes he has taken:

GPA = (2(3.0) + 1(2.0)) / 3 = 2.67

Therefore, Robert's cumulative GPA is 2.67.

b. Robert should be worried about meeting SAP (Satisfactory Academic Progress) if there is a minimum GPA requirement for him to remain in good standing at his school.

c. The reason why Robert should be worried is that his cumulative GPA of 2.67 may not meet the minimum GPA requirement set by his school. If he does not meet this requirement, he may be placed on academic probation or face other consequences, such as being ineligible for financial aid or scholarships.

d. The SAP criterion that relates to this scenario is the cumulative GPA requirement. Many schools have a minimum GPA requirement that students must meet to remain in good standing and to be eligible for financial aid and other benefits. In this scenario, Robert's cumulative GPA will be compared to the minimum GPA requirement set by his school to determine if he is meeting SAP.

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giving 26 points. need in 5 mins

Answers

Therefore , the solution of the given problem of triangle comes out to be horizontal dimension of 16 inches, and an approximate hypotenuse of 28.84 inches.

What is a triangle exactly?

A polygon is a hexagon if it has at least one additional segment. Its shape is a straightforward rectangle. Only edges between A and B can separate anything similar from a regular triangle form. The cube is only partially formed by Euclidean geometry, even though the edges are entirely collinear. A circle with four sides and three angles make compose a triangle.

Here,

The backrest is described as having a 24 inch vertical dimension and a 16 inch horizontal dimension. Although the hypotenuse is not named, we may nevertheless determine its length using the Pythagorean theorem:

=> h² = 24² + 16²

=> h² = 576 + 256

=> h² = 832

=> h= 28.84 inches high

As a result, the backrest has the following measurements: a vertical dimension of 24 inches, a horizontal dimension of 16 inches, and an approximate hypotenuse of 28.84 inches.

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What is the meaning of "an even number of elements [tex]x[/tex] such that [tex]x^{-1}=x[/tex]"?

Answers

The statement "X⁻¹ = X" means that for each element X in the set or group, its inverse is itself.

What is Even number?

An even number is any integer ( whole number) that is divisible by 2, i.e., it leaves no remainder when divided by 2. In other words, an even number is a multiple of 2.

For example, 2, 4, 6, 8, 10, and so on are even numbers, while 1, 3, 5, 7, 9, and so on are odd numbers. Zero (0) is also considered an even number because it is divisible by 2.

The statement "an even number of elements X such that X⁻¹ = X" means that there are a certain number of elements (which is even) in a set or group, and for each element X in that set or group, its inverse is also equal to X.

In mathematics, the inverse of an element X in a group is an element Y such that their product XY (or YX) equals the identity element of the group. The identity element is the element in the group that, when combined with any other element, produces that element unchanged. For example, the identity element of the group of real numbers under addition is 0, because 0 + a = a + 0 = a for any real number a.

So, the statement  X⁻¹ = X" means that for each element X in the set or group, its inverse is itself. This is only possible if the set or group has elements that are their own inverses. In other words, each element is equal to its negative (or additive inverse) or its reciprocal (or multiplicative inverse).

The requirement that there must be an even number of such elements in the set or group means that if we count the number of elements that satisfy this condition, the count must be an even number.

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c) Troy had a score of 83 on his last Psychology Exam. For the same test, the class average was 76.80 with a standard deviation of 3.10. Based on this information, answer the questions that follow using the formulas provided (z-table is provided pp. 8-11 of this test). For full credit show all your work.
z= (X-M)/SD X=(z)(SD)+M
Convert his score to a z-score and plot on a distribution. Show your work. (6 points)



Convert his score to a percentile rank. Show your work. (4 points)




Describe Troy performance on this exam as compared to the average score on this exam. Did he perform relatively higher, lower, or the same? Explain how you made your decision. (3 points)


What percentage of scores are between his score and the average score in the class? Explain how you know. (3 points)




Troy’s dad promised to pay for his cell phone bill if he scored in the top 10% of his class on every test. Compute the score for to find the raw score that corresponds to the 10% using the formula provided. Then answer the question - Did he perform in the top 10% of his class on this exam? Show your work. (3 points)

Answers

Troy needs a score of 80.28 or higher to be in the top 10% of his class. Since he scored 83, he did perform in the top 10% of his class on this exam.

What is percentage?

Percentage is a way of expressing a fraction or a proportion as a portion of 100.

To convert Troy's score to a z-score, we use the formula:

z = (X - M) / SD

where X is Troy's score, M is the class average, and SD is the standard deviation. Plugging in the values we have:

z = (83 - 76.80) / 3.10 = 2.00

To plot this on a distribution, we look up the corresponding area in the z-table. A z-score of 2.00 corresponds to an area of 0.9772.

To convert Troy's score to a percentile rank, we use the formula:

Percentile rank = (number of scoreS below X / total number of scores) x 100%

His percentile rank is approximately:

Percentile rank = (0.9772) x 100% = 97.72%

We can do this by subtracting the area to the left of Troy's z-score from the area to the left of the class average's z-score:

Area  = 0.9772 - 0.5000 = 0.4772

This means that about 47.72% of the scores are between Troy's score and the class average.

Using the formula for z-scores, we can solve for X:

X = (z)(SD) + M = (1.28)(3.10) + 76.80 = 80.28

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The surface area of a cell phone screen is 11700 mm2. Use the fact that 10 mm = 1 cm to convert this area to cm2. Round your answer to the nearest whole number.​

Answers

The surface area of a cell phone screen is 117 cm².

What is unit conversion?

Unit conversion is the process of converting a quantity expressed in one unit of measurement to an equivalent quantity expressed in another unit of measurement.

We can convert mm² to cm² by dividing the area in mm² by the square of the conversion factor, which is (10 mm / 1 cm) = 100 mm² / cm². Therefore, we have:

11700 mm² / (100 mm² / cm²) = 117 cm²

Rounding to the nearest whole number, we get 117 cm².

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The cheese cost $3.68 a lb With the total being $58.88 How many lbs is that cheese?

Answers

To find out how many pounds of cheese there are, you can divide the total cost by the cost per pound:

$58.88 ÷ $3.68/lb ≈ 16 lbs

So there are approximately 16 pounds of cheese.

4. Elusive Electronics claims that its new IQ laptop battery lasts for around 400 recharges. You take a random sample of 50 IQ laptops from Elusive Electronics and find that the average number of recharges is 370, with a standard deviation of 36.

Part A: Fill in the blanks.
X=
S=
n=


Part B: Use the formula s/n to find the standard error of the sampling distribution. Round to the nearest whole number.


Part C: What is the margin of error for a 95% confidence level?


Part D: Find the 95% confidence interval by adding and subtracting the margin of error to/from the sample mean. Fill in the blanks to explain what the confidence interval means.

95% confidence interval =
You can be 95% confident that the true population mean will fall between blank and blank recharges.
(fill in the blanks)


Part E: Use Part D to form a conclusion about Elusive Electronics' claim that each IQ laptop battery will last for an average of 400 recharges. Explain your conclusion.

Answers

The answer of the given question based on the statistics is , Part A X= 370 , S= 36 , n= 50 . Part B =  5 . Part C = 9.8 . Part D=  360 and 380.   Part E: the reason is explained below.

What is Mean?

The mean is measure of central tendency that represents average value of set of numbers. It is calculated by adding up all the numbers in the set and then dividing the sum by the total number of values. The mean is a useful statistic for describing the typical or average value of a data set, and is often used in data analysis and statistical inference.

Part A:

X= 370 (sample mean)

S= 36 (sample standard deviation)

n= 50 (sample size)

Part B:

s/n = 36/√50 = 5 (rounded to the nearest whole number)

Part C:

The margin of error for a 95% confidence level can be found using the formula: margin of error = z*(standard error), where z is the z-score associated with a 95% confidence level. z-score can found using  standard normal distribution table or calculator. For a 95% confidence level, the z-score is approximately 1.96. Therefore, the margin of error is:

margin of error = 1.96*5 = 9.8 (rounded to one decimal place)

Part D:

The 95% confidence interval can be found by adding and subtracting the margin of error from the sample mean:

95% confidence interval = X ± margin of error = 370 ± 9.8 = (360, 380)

The confidence interval means that we can be 95% confident that the true population mean number of recharges for IQ laptop batteries from Elusive Electronics falls between 360 and 380.

Part E:

Since the 95% confidence interval does not include the claimed average of 400 recharges, we cannot accept the claim that each IQ laptop battery will last for an average of 400 recharges. It is possible that the true population mean is close to 400 recharges, but based on the sample data, we cannot make that conclusion with 95% confidence.

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Miguel needs to memorize words on a vocabulary list for Russian class. He has memorized 36 of the words, which is three-fourths of the list. How many words are on the list?

Answers

After answering the presented questiοn, we can cοnclude that equatiοn Therefοre, there are 144 wοrds οn the vοcabulary list.

What is equatiοn?

A mathematical equatiοn is a fοrmula that cοnnects twο statements and denοtes equivalence with the equals symbοl (=). An equatiοn is a mathematical statement that shοws the equality οf twο mathematical expressiοns in algebra. In the equatiοn 3x + 5 = 14, fοr example, the equal sign separates the variables 3x + 5 and 14.

A mathematical fοrmula describes the cοnnectiοn between the twο sentences that οccur οn οppοsite sides οf a letter. The symbοl and the single variable are frequently the same. As in 2x - 4 Equals 2, fοr instance.

1/4 x = tοtal number οf wοrds Miguel has nοt memοrized

1/4 x = x - 36

x/4 = 36

x = 144

Therefοre, there are 144 wοrds οn the vοcabulary list.

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There are 23 people taking a group trip to Rochester, New York, for the Summer Soul Music Festival. Tickets for the trip cost $159 each. What is the total cost of the tickets

Answers

Answer:

3657

Step-by-step explanation:

I multiplied the number of people by how much the tickets cost (23x159) which got me 3657

Insurance claims An insurance company claims annual loss from fire is μ = $250 with a standard that in the population of homeowners, the mean deviation of o = $5000. The distribution of loss is strongly right-skewed: Many policies have $0 loss, but a few have large losses. ​

Answers

For a large sample size (greater than 30), distribution is normal.

How to solve

An insurance company claims that in the population of homeowners, the mean loss and standard deviation from fire is

μ = $250

o = $5000

The distribution of loss is strongly right skewed.

a). Since for a simple random sample of size n= 15 drawn from  the population of homeowners.

Since the given sample size is small. Therefore for small sample size less the 30 the distribution of

follow t- distribution.

Since t distribution has more variance than normal distribution.

Also t- distribution is symmetric as normal distribution at t=0.

For small sample size sampling distribution is t -distribution.

b). Now if the simple random sample of size n = 10000 drawn from the population of homeowners.

Thus for the large sample size and given mean and standard deviation sampling distribution of x follow normal distribution. Also we know that normal distribution have a bell-shaped curve which is symmetric to z=0.

For a large sample size (greater than 30), distribution is normal.

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Kirsten Ghosh has a mortgage loan of $750,000 at an interest rate of 7%. The monthly payment is $4,987.50. How much of the first monthly payment is for interest in dollars?

Answers

The first monthly payment is for interest in dollars for the mortgage loan of $750,000 at an interest rate of 7% is equal to $437,475.00 with first principal payment is $612.75.

Amount balance of mortgage loan = $750,000

Interest rate = 7%

To calculate first monthly payment is for interest

= calculate the portion of the payment that goes towards interest and the portion that goes towards the principal.

First, find the monthly interest rate by dividing the annual interest rate by 12.

Monthly interest rate

= 7% / 12

= 0.5833%

Next, calculate the interest portion of the first payment by multiplying the loan balance by the monthly interest rate,

Interest portion of first payment

= Loan balance x Monthly interest rate

= $750,000 x 0.5833%

= $437,475.00 /100

= $4374.75

Principal portion of first payment

= Total payment - Interest portion

=$4,987.50 - $4374.75

= $612.75

Therefore, $437,475.00 of the first monthly payment of $4,987.50 is for interest.

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Please help me!!!!!!!!!!!!!!!!!!!!1

Answers

Answer: The answer is B

Step-by-step explanation:

Answer:

[tex]\dfrac{1}{4}(y - 2)[/tex]

Step-by-step explanation:

To take out (1/4) as a common term, multiply the denominator and the numerator of the second term by 2.

    [tex]\dfrac{1}{4}y- \dfrac{1}{2}=\dfrac{1}{4}y - \dfrac{1*2}{2*2}\\[/tex]

                [tex]= \dfrac{1}{4}y-\dfrac{1}{4}*2\\\\=\dfrac{1}{4}(y-2)[/tex]

This table shows values represented by an exponential function.
x | y
0 | 3
2 | 9
3 | 27
4 | 64
5 | 125
6 | 216
What is the average rate of change for this function for the interval from x=2 to x=4?
A. 18
B. 27.5
C. 55
D. 36.5

Answers

The average rate of change for this function for the interval from x=2 to x=4 is B. 27.5.

What is the average rate?

The average rate at which one quantity changes in relation to another's change is referred to as the average rate of change function.

A method that determines the amount of change in one item divided by the corresponding amount of change in another is known as an average rate of change function.

For this special case from the info in the table, we have:

a = 2, f(2) = 9

b = 4, f(4) = 64

And replacing the data into the average rate formula we got:

m = 64-9/4-2 = 27.5

Thus, the correct option is B. 27.5.

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a rectangle has an area of 14y^3 -63y what are exprese GCF? thsions for length and width where 1 dimension is GCF

Answers

The length and width of the rectanhle are Length = 7y and Width = 2y^2 - 9

Calculating the length and width

To find the expressions for the greatest common factor (GCF) of the length and width of a rectangle with an area of 14y^3 - 63y, we can factor the area expression and look for common factors.

14y^3 - 63y = 7y(2y^2 - 9)

The GCF of the length and width will be factors of both 7y and 2y^2 - 9.

The only common factor is y, so the length and width expressions are:

Length = 7y

Width = 2y^2 - 9

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7) The half-life of silicon-32 is 710 years. If 30 grams is present now, how much will be present in 200 years?
(Round your answer to three decimal places.)

Answers

Answer: Approximately 21.093 grams of silicon-32 will be present after 200 years.

Step-by-step explanation: The formula for the amount of substance remaining after a certain amount of time can be given by:

A = A0 (1/2)^(t/T)

where:

A0 = initial amount of substance

A = amount of substance remaining after time t

T = half-life

Plugging in the given values:

A0 = 30 grams

t = 200 years

T = 710 years

A = 30 * (1/2)^(200/710)

A ≈ 21.093 grams

Therefore, approximately 21.093 grams of silicon-32 will be present after 200 years.

need some help with this functions homework question

Answers

a) The average rate of change from x= π/3 to x= 2π/3 is -6√3 + 2π/3. b) The instantaneous rate of change at x= π/2 is -5√3/2, or approximately -4.3.

What is chain rule in calculus?

A formula for calculating the derivative of a composite function is the chain rule. When two or more functions are combined, the output of one function becomes the input of the following function, creating a composite function. According to the chain rule, the derivative of a composite function can be calculated by multiplying the inner function's derivative by the outer function's derivative with regard to the inner function.

a) The average rate of change is given by:

average rate of change = (f(2π/3) - f(π/3)) / (2π/3 - π/3)

The value of f(2π/3) and f(π/3) is:

f(2π/3) = 5 cos(2π/3 - π/6) - 1

= 5 cos(π/2) - 1

= 0

And,

f(π/3) = 5 cos(π/3 - π/6) - 1

= 5 cos(π/6) - 1

= 5(√3/2) - 1

= (5√3 - 2) / 2

Substituting the values we have:

average rate of change = ((0) - ((5√3 - 2) / 2)) / (2π/3 - π/3)

= (-5√3 + 2) / (π/3)

= -6√3 + 2π/3

Hence, the average rate of change from x= π/3 to x= 2π/3 is -6√3 + 2π/3.

b) The instantaneous rate of change at x= π/2 is given by the derivative thus,

y = 5 cos (x- π/6) - 1

Taking the derivative we have:

y' = -5 sin (x- π/6)

For  x= π/2 into y':

y'(π/2) = -5 sin(π/2 - π/6)

= -5 sin(π/3)

= -5(√3/2)

= -5√3/2

Hence, the instantaneous rate of change at x= π/2 is -5√3/2, or approximately -4.3.

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Find the lateral area of the cone in terms of π.




15π cm2


18π cm2


21π cm2


12π cm2

Answers

[tex]\textit{lateral area of a cone}\\\\ LA=\pi r\sqrt{r^2+h^2}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ h=4\\ r=3 \end{cases}\implies LA=\pi (3)\sqrt{3^2 + 4^2} \\\\\\ LA=3\pi\sqrt{9+16}\implies LA=3\pi \sqrt{25}\implies LA=3\pi (5)\implies LA=15\pi~cm^2[/tex]

Question 5 (06.06) Which pair, of expressions is equivalent using the Association Property of Multiple?

A: 4(2a • 5) = (4 • 2a) • 5
B: 4(2a • 5) = 8a • 20
C: 4 (2a •5) = (2a • 5) • 4
D: 4(2a • 5) = 4 • 2a • 5

Happy Easter ​

Answers

Answer:

The answer to your problem is, A. 4(2a • 5) = (4 • 2a) • 5

Step-by-step explanation:

The APM ( Association Property of Multipaction ) states that multiplication of group of numbers in any combination of any type of number.

Like: a × ( b×c ) = ( a × b ) × c

Option A. Has that;

4(2a • 5) = (4 • 2a) • 5

Thus the answer to your problem is, A. 4(2a • 5) = (4 • 2a) • 5

The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $7500 to rent trucks plus an additional
fee of $100.50 for each ton of sugar. The second company charges $6597 to rent trucks plus an additional fee of $175.75 for each ton of sugar.
For what amount of sugar do the two companies charge
the same?
What is the cost when the two companies charge the
same?

Answers

The cost is $8712 when the two companies charge the same for 12 tons of sugar.

What is equality?

Equality is a concept in mathematics that refers to the idea that two values, expressions, or equations are equal to each other. In an equality, the values on either side of an equals sign have the same numerical or algebraic value.

Let x be the amount of sugar in tons. The total cost for the first company is given by:

C1 = 7500 + 100.50x

The total cost for the second company is given by:

C2 = 6597 + 175.75x

We want to find the amount of sugar x for which the two companies charge the same, so we can set the two expressions equal to each other and solve for x:

7500 + 100.50x = 6597 + 175.75x

Subtracting 6597 from both sides gives:

903 = 75.25x

Dividing both sides by 75.25 gives:

x ≈ 12

So the two companies charge the same for 12 tons of sugar. To find the cost, we can plug x = 12 into either expression:

C1 = 7500 + 100.50(12) = 8712

C2 = 6597 + 175.75(12) = 8712

So the cost is $8712 when the two companies charge the same for 12 tons of sugar.

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If you flip a coin 6 times, what is the probability of getting exactly 3 heads?

Empirical Probability:
Theoretical Probability:

Answers

The empirical probability of getting exactly 3 heads in 6 coin flips is 20/64 = 0.3125 or 31.25% and the theoretical probability of getting exactly 3 heads in 6 coin flips is also 0.3125 or 31.25%.

What is probability?

Probability is the measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, with 0 indicating that the event will not occur and 1 indicating that the event is certain to occur.

Empirical Probability:

If you flip a coin 6 times and record the outcomes, there are a total of [tex]2^6 = 64[/tex] possible outcomes, where each flip can result in either heads or tails.

To calculate the empirical probability of getting exactly 3 heads, you would need to count the number of outcomes in which exactly 3 of the 6 flips result in heads.

For example, one possible outcome is HTHTHH, which has exactly 3 heads.

By enumerating all possible outcomes, we can count that there are 20 outcomes with exactly 3 heads.

Therefore, the empirical probability of getting exactly 3 heads in 6 coin flips is 20/64 = 0.3125 or 31.25%.

Theoretical Probability:

The theoretical probability of getting exactly 3 heads in 6 coin flips can be calculated using the binomial distribution formula, which is:

[tex]P(X=k) = (n\ choose\ k) * p^k * (1-p)^{(n-k)[/tex]

where P(X=k) is the probability of getting exactly k successes, n is the number of trials, p is the probability of success in a single trial, and (n choose k) is the binomial coefficient, which represents the number of ways to choose k items from a set of n.

In this case, we have n=6 trials, k=3 successes, and p=0.5 (assuming a fair coin).

Plugging in these values, we get:

[tex]P(X=3) = (6\ choose\ 3) * 0.5^3 * (1-0.5)^{(6-3)} = 20 * 0.125 * 0.125 = 0.3125 or 31.25%[/tex]

Therefore, the theoretical probability of getting exactly 3 heads in 6 coin flips is also 0.3125 or 31.25%.

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What fraction can we use to rename
19
20
as hundredths?

Answers

Answer:

0,95

Step-by-step explanation:

[tex] \frac{19}{20} [/tex]

Multiply the fraction by 5, so that the denominator would be equal to 100:

[tex] \frac{19 \times 5}{20 \times 5} = \frac{95}{100} = 0.95[/tex]

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