The range and interquartile range is 11 and 2 respectively. The score that corresponds to the 75th percentile and the score that corresponds to the 25th percentile is 7 and 4 respectively.
To calculate the range, we subtract the smallest value from the largest value:
Range = Largest Value - Smallest Value = 12 - 1 = 11
To calculate the interquartile range, we first need to find the first and third quartiles. We can do this by ordering the scores from lowest to highest and finding the median of the lower half and upper half of the scores, respectively:
1, 4, 5, 5, 6, 6, 7, 12
The median of the lower half (Q1) is the middle value of the numbers 1, 4, 5, and 5, which is 4.5 (the average of the two middle values).
The median of the upper half (Q3) is the middle value of the numbers 6, 6, 7, and 12, which is 6.5.
Interquartile Range = Q3 - Q1 = 6.5 - 4.5 = 2
To find the score that corresponds to the 75th percentile, we first need to find the index corresponding to the 75th percentile. We can do this by multiplying 0.75 by the total number of scores, which is 8. This gives us an index of 6, meaning the 75th percentile score is the 6th score in the ordered list:
1, 4, 5, 5, 6, 6, 7, 12
The score that corresponds to the 75th percentile is 7.
To find the score that corresponds to the 25th percentile, we can follow the same procedure. The index corresponding to the 25th percentile is 0.25 times the total number of scores, or 2. The 2nd score in the ordered list is 4.
The interquartile range is a better description of variability in the data than the range because the range is heavily influenced by outliers. In this case, the range is 11, which is largely driven by the outlier score of 12. The interquartile range, on the other hand, only considers the middle 50% of the scores and is therefore less affected by outliers. It gives a more accurate measure of the spread of the scores around the median.
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Find the values of x and y.
The value of x is 5, while the value of y is 24
How to solve for x and yIn order to get the value of x we would first have to find the value of y
The sum of angles on a straight line = 180
hence we would have:
5y + 2y + 12 = 180
7y = 180 - 12
7y = 168
y = 24 degrees
The angle that is made at R is 90 degrees
we would have
2y + 12 + 5x = 90
y = 24
2 * 24 + 12 + 5x = 90
60 + 5x = 90
5x = 90 - 60
5x = 30
x = 30 / 6
x = 5
Hence the value of x is 5
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15. Which set is an example of like fractions?
A. 7/4 and 4/7
B. 10/10 and 5/5
C. 2/1 and 2/3
D. 1/2 and 3/2
You can use the formula S = 10mi to approximate the surface area S, in square centimeters, of a horse with mass m, in grams. What is the surface area of a horse with a mass of 4.5 x 10 5 grams? Round your answer to the nearest whole square centimeter.
The surface area of a horse with the mass is 4.5 x 10^6 square centimeters,
What is the surface area of a horse with the massFrom the question, we have the following parameters that can be used in our computation:
S = 10mi
Where the surface area = S, in square centimeters, Mass = m, in gramsUsing the above as a guide, we have the following:
m = 4.5 x 10^5 grams
substitute the known values in the above equation, so, we have the following representation
S =10 * 4.5 x 10^5
So, we have
S =4.5 x 10^6
Hence, the surfave area is 4.5 x 10^6
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(1.3+0.2) divided by 5+2.7 using BODMAS
Answer:
6
Step-by-step explanation:
(1.3 + 0.2) / 5 + 2.7
1) 1.3 + 0.2 = 1.5
2) 1.5 / 5 = 0.3
3) 0.3 + 2.7 = 6
P.S. check if I wrote the example correctlyConsider the expressions {4x^3+2x^2+6x+7}/{2x+1} and 2x^2+3+(4/{2x+1}.)
a) Show that these expressions are equal when x=10.
b) Explain why these expressions are not equal when x=-1/2.
c) Show that these expressions are equal for all x other than-1/2.
In parts (a) and (c), begin by explaining what your strategy for solving will be.
The given expressions {4x^3+2x^2+6x+7}/{2x+1} and 2x^2+3+(4/{2x+1}) are equal at x = 10, they are not equal at x = -1/2, and they are equal for all x other than -1/2.
Substitute x = 10 in the given expressions, we get
{4x^3+2x^2+6x+7}/{2x+1}
= (4000+200+60+7)/21
=203.19
2x^2+3+(4/{2x+1}.)
200+3+4/21
=203.19
Hence, the given expressions are equal when x = 10
Now substitute x = -1/2 in the given expressions
={4x^3+2x^2+6x+7}/{2x+1}
=(4*-1/8+2*1/4+6*-1/2+7)/0
2x^2+3+(4/{2x+1}.)
=2*1/4+3+4/0
When we substitute the value x= -1/2 then it divide by 0 and value will be infinite and hence we can say that the values are not equal at x = -1/2
2x^2+3+(4/{2x+1}.) take LCM
{4x^3+2x^2+6x+7}/{2x+1} here both expression are equal and we can't able find the value at x = -1/2 but for other value of x they are equal.
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Find the angle of elevation
from point C to point A.
590
m
402 m
2
nm
B
Angle of elevation = [ ? ]0
The required angle of the elevation at point C to A is given as ∠C = 31°.
What is the angle of elevation?The angle of elevation is the angle between a horizontal line of sight and a line of sight that is directed upwards to an object or point. In other words, it is the angle between the horizontal and an observer's line of sight to an object above the observer
Here,
A figure has been shown, Consider triangle ABC, where ∠A = 59, ∠B = 90°,
Since the sum of the angle in the triangle should be 180°.
∠A + ∠B + ∠C = 180
∠C + 90 + 59 = 180
∠C = 90 - 59
∠C = 31°
Thus, the required angle of the elevation at point C to A is given as ∠C = 31°.
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Solve . Type the correct answer in the box. Round your answer to three decimal places. For help, see this worked example.4x+11=25
The solution to the equation is x = 3.5.
What is an equation?
An equation is a mathematical statement that says two expressions are equal. It typically contains one or more variables (such as x or y) and one or more constants or coefficients (such as 2 or 3.5). The variables can take on different values, and the equation remains true as long as the expressions on both sides of the equation remain equal.
In the example given, "4x+11=25" is an equation. It says that the expression "4x+11" is equal to the expression "25". We can solve the equation by isolating the variable x on one side of the equation, as shown in the previous answer:
4x + 11 - 11 = 25 - 11
4x = 14
4x/4 = 14/4
x = 3.5
Hence, The solution to the equation is x = 3.5.
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4x - 3 = 17
-2x - 7y = 11
A mechanic had4.5 gallons of motor oil at the start of the day. At the end of the day, only 5 pints remained.How many pints of motor oil did the mechanic use during the day?
AIR 2021) Four functions are shown.
Which function is linear?
The option B is a linear function. The solution has been obtained by using the properties of a linear function.
What is a linear function?
A function is referred to as linear if it can be represented on a graph as a straight line. Typically, the highest degree of this polynomial function is 1 or 0. Despite the fact that linear functions can be expressed in both calculus and linear algebra.
We are given four functions.
It is clearly visible that option A is not a linear function because the degree of the function is 2.
Option B is a linear function because we obtain a straight line on the graph.
Also, option C is not a linear function because the degree of the function is greater than 1.
Similarly, option D is also not a linear function because it's graph is not a straight line.
Hence, option B is a linear function.
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What is the answer to the problem 8(w+3)=_w+_ ?
70°
160
What is the size in degrees of the missing angle
Answer:
40°
Step-by-step explanation:
The sum of interior angles in a quadrilateral is 360°, from the picture we have a 90°, 160° and 70°.
so
take off from 360° the know angles and we will find the angle "?"
360 - 90 - 160 - 70 =
40° (your answer)
A family buys a studio apartment for 150000 . They pay a down payment of 45000 . a. Their down payment is what percent of the purchase price? b. What percent of the purchase price would a $7500 down payment be?
Answer:
Step-by-step explanation:
The function represented by the data in the table could
model the perimeter of a square whose area is x.
Explain how the function in the table models this
relationship. Be sure to identify how the function
represents area, perimeter, and the length of a side. Then
generalize the pattern in the table.
Type your response in the box.
Note that the pattern in the table is that the perimeter of a square with area x is four times the square root of x. We can express this relationship as:
f(x) = 4 * √(x)
What is the rationale for the above response?We know that the area of a square is calculated as the square of its side length, which means that the side length of a square with area x is the square root of x. Therefore, the length of the side of the square can be expressed as:
s = √(x)
To calculate the perimeter of the square, we simply add up the lengths of all four sides:
P = 4s = 4 * √(x)
So, the function f(x) in the table represents the perimeter of a square with area x, which can be calculated using the equation:
f(x) = 4 * √(x)
To verify this, let us take these examples:
when x = 1, the area of the square is 1, and the side length is 1. Therefore, the perimeter of the square is 4 * 1 = 4, which matches the value in the first row of the f(x) column.when x = 4, the area of the square is 4, the side length is 2, and the perimeter of the square is 4 * 2 = 8, which matches the value in the second row of the f(x) column, and so on.Learn more about Square Roots:
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PLEASE HELP PLEASEPLEASEPLEASE
The angle measure m<T is equivalent to 78 degrees
Similar trianglesSimilar triangles are triangles that have similar sides and angles.
From the given triangle
<A = <R
<B = <S
<C = <T
Since the sum of angle in a triangle is 180 degrees, hence;
<A + <B + <T = 180
24 + 78 + <T = 180
102 + <T = 180
<T = 180 - 102
<T = 78 degrees
Hence the measure of m<T from the triangle is 78 degrees
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Metalworking Twelve equally spaced holes are to be drilled in a metal strip 3414-in. long, with 2 in. remaining on each end. What is the distance, to the nearest hundredth of an inch, from center to center of two consecutive holes.
Rounded to the nearest hundredth of an inch, the distance is 310.91 inches.
How would you define distance?How far apart or how far away items or locations are from one another is measured numerically as distance. A physical quantity, it is typically stated in terms of meters, kilometers, miles, or feet. Given that it simply has magnitude and no direction, distance is a scalar quantity.
Usually, a formula is used to determine the distance between two points. One example is the distance formula in Euclidean geometry, which includes computing the square root of the sum of the squares of the coordinate differences between the two points.
Distance can be measured in a variety of contexts, including physics, where it is used to describe an object's displacement through time, and geography, where it is used to define the separation between two points on the surface of the Earth. It is also frequently used in daily life when people go for walks or runs or when they drive from one area to another to calculate the distance they travel.
There are no holes in the first and last 2 inches of the metal strip, leaving 3410 inches (3414 - 2 - 2) as the remaining length.
We can divide the total remaining length by the number of gaps between the holes to determine the distance between the centers of two adjacent holes. The distance between the 12 holes is determined by the fact that there are 11 gaps between them.
distance = (total length - length of 2 end pieces) / (number of gaps)
distance = (3410 in.) / 11
distance ≈ 310.91 in.
Rounded to the nearest hundredth of an inch, the distance is 310.91 inches.
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Kevin entered a pie eating contest. He ate 4 pies in 132 seconds. How many pies can he eat in 198 seconds?
Answer:
He can eat 6 pies in 198 seconds.
Step-by-step explanation:
Divide
132÷4=33
Divide
198÷33=6 pies in 198 seconds
All numbers that have 5 as a factor also have 2 as a factor.
O A. True
OB. False
The statement that all numbers that have 5 as a factor also have 2 as a factor is false, as numbers ending in 5 have five as a factor but are odd numbers, meaning that they do not have two is a factor.
What are the factors of a number?The factors of a number are the numbers by which the number is divisible.
Hence the numbers that have 2 and 5 as factors as the multiples, given as follows:
Multiples of 2: {0, 2, 4, ..., } -> all even numbers.Multiples of 5: {0, 5, 10, ...} -> all numbers finishing in 0 or 5.Numbers that finish in 5 are odd, meaning that they do not have 2 is a factor, hence the statement is false.
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Multiply. (Simplify your answer
(-5y4z)(-7y6z³)
Answer:
35y^(10)z^(4)
Step-by-step explanation:
Solution Given:
(-5y^(4)z)(-7y^(6)z³)
Here while opening bracket
If their is like terms they can be multiplied ,divided,subtracted as well as added.
So
Here
opening bracket and keeping in serially
-5*-7*y^(4)*y^(6)*z*z^(3)
here if their is like terms their power is added.
And solving remaining one.
35y^(4+6)z^(1+3)
Here -5*-7=35
Again
Solving it.
35y^(10)z^(4)
Answer:
[tex]35y^{10}z^4[/tex]
Step-by-step explanation:
Given expression:
[tex](-5y^4z)(-7y^6z^3)[/tex]
Apply the rule: (-a) · (-b) = ab
[tex]\implies 5y^4z \cdot 7y^6z^3[/tex]
Multiply the numbers: 5 · 7 = 35
[tex]\implies 35y^4zy^6z^3[/tex]
Collect like terms:
[tex]\implies 35y^4y^6z^3z[/tex]
[tex]\textsf{Apply exponent rule:} \quad a^b \cdot a^c=a^{b+c}[/tex]
[tex]\implies 35y^{(4+6)}z^{(3+1)}[/tex]
Simplify the exponents:
[tex]\implies 35y^{10}z^4[/tex]
Suppose that the functions q and r are defined as follows
Suppose that the functions q and r are defined as q(x) = 2x+2 and r(x) = x² +1, the function (r * q)(4) =(q * r)(4) and they are equal to 170.
Which is the commutative law?
commutative law, in mathematics, is either of two laws relating to number operations of addition and multiplication that are stated symbolically as a + b = b + a and ab = ba. From these laws, it follows that any finite sum or product is unaltered by reordering its terms or factors.
Given the following functions:
q(x) = 2x+2
r(x) = x² +1
Taking the product
q(x)*r(x) = (2x + 2)(x² +1)
Note that according to the communatative law, (r * q)(x) = (q * r)(x)
(r * q)(4) =(q * r)(4) = (2(4)+2)((4)² +1)
(r * q)(4) =(q * r)(4) = (10)(16+1)
(r * q)(4) =(q * r)(4)= 10(17)
(r * q)(4) =(q * r)(4) = 170
Hence, the function (r * q)(4) =(q * r)(4) and they are equal to 170.
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The accompanying table shows the results of a survey in which 250 mail and 250 female workers ages 25 to 64 or asked if they contribute to retirement savings plan at work find the probability that a randomly selected worker contribute to a retirement savings plan at work given the worker is male
Answer:
The answer to your question is, 0.484
Step-by-step explanation:
The actual chances of an event occurring are defined by a probability. Probability has several uses in games, and in business to create probability-based forecasts which bascially how it works.
Lets graph it out:
Let A signify that the selected employee participates to a workplace retirement savings plan. Let P stand for the male employes.
P(A∩P) the intersection of male & female.
P(A\P) is the probability that a randomly picked worker participates to a workplace retirement savings plan is the option male
The probability that a randomly selected worker contributes to a retirement savings plan at work is male is found in this formula :
P(A\P)=P(A∩P)/A(P)
P(A\P)=(121/500)/(250/500)
P(A\P)=0.484
Thus, the probability that a randomly selected worker contributes to a retirement savings plan at work that is male will be,
0.484.
How many bundles of strip flooring are needed to cover a rectangular floor area 16 ft by 14 ft 6 in size if a bundle of strip flooring contains 25 sq ft, and if 30 % extra must be allowed for side and end matching?
If a bundle of strip flooring has 25 sq ft and 30% extra is provided for side and end matching, 12.2 bundles of strip flooring are required to cover a rectangle floor space 16 ft by 14 ft 6 in size.
How do you find the area of the rectangle?Once the length and breadth of a rectangle are determined, the area is computed. The area of a rectangle may be calculated by multiplying its length and width.
In this question, because the rectangular floor has an area of 16 ft by 14 ft 6 in, we can compute the total area of the floor by multiplying 16 ft by 14 ft 6 in, which is 234 [tex]ft^{2}[/tex]. We also know that a strip flooring bundle comprises 25 square feet. As a result, we must determine how many bundles of strip flooring are required to cover the floor.
We must account for side and end matching, which is computed by increasing the total floor area by 30%. To determine the extra space required for side and end matching, multiply 234 ft2 by 0.3. This equates to 70.2 [tex]ft^{2}[/tex].
We can now compute the total area required to cover the floor. This is 234 [tex]ft^{2}[/tex] + 70.2 [tex]ft^{2}[/tex] = 304.2 [tex]ft^{2}[/tex].
Because each strip flooring bundle includes 25 square feet, we can divide 304.2 [tex]ft^{2}[/tex] by 25 to determine the total number of bundles required to cover the floor.
This corresponds to 12.2 bundles.
Therefore, 12.2 bundles of strip flooring are needed to cover a rectangular floor area 16 ft by 14 ft 6 in size, with 30% extra for side and end matching.
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HELP PLSSSSSSSSSSSSSSSSSS
Answer: A) 6
Step-by-step explanation:
This is geometry. The two angles are corresponding angles, because they are both cut by the same **transversal line**. When that occurs, corresponding angles are created.
now importantly: corresponding angles are equal to each other, or **congruent**. Knowing this, we can set them equal to each other.
17x+11=19x-1
Solve...
11=2x-1
12=2x
x=6
hope this helps
MM
Please help:)
Limits calc questions
======================================================
Explanation:
If we plugged x = 4 into the expression, then we'll have 0 in the denominator. This causes a division by zero error.
Luckily the numerator factors to (x-4)(x-2)^2. This is found by using the Rational Root Theorem, along with either synthetic division or polynomial long division. I'll skip these steps unless you need me to write them out.
Once we know the numerator factors this way, we can then write the following steps:
[tex]L = \displaystyle \lim_{\text{x}\to4}\frac{\text{x}^3-8\text{x}^2+20\text{x}-16}{\text{x}-4}\\\\\\L = \displaystyle \lim_{\text{x}\to4}\frac{(\text{x}-4)(\text{x}-2)^2}{\text{x}-4}\\\\\\L = \displaystyle \lim_{\text{x}\to4}(\text{x}-2)^2\\\\\\L = (4-2)^2\\\\\\L = 4\\\\\\[/tex]
Therefore,
[tex]\displaystyle \lim_{\text{x}\to4}\frac{\text{x}^3-8\text{x}^2+20\text{x}-16}{\text{x}-4}=4\\\\\\[/tex]
You can use graphing software like Desmos or GeoGebra to confirm the answer is correct. WolframAlpha is another good choice.
Please help me with my following homework problem
The conclusion is that the mean bumper repair cost is greater for small pickups than for small utility vehicles at a significance level of 0.10.
How to make the decisionThe test statistic for this hypothesis test can be calculated as follows:
t = (μ1 - μ2) / sqrt(s1^2 / n1 + s2^2 / n2)
Plugging in the values, we get:
t = (1090 - 485) / sqrt(403^2 / 5 + 382^2 / 8) = 4.36
Next, we need to find the critical value for a two-tailed test at a significance level of 0.10 using a t-distribution table or using a t-distribution calculator.
Using a t-distribution table or calculator, we find the critical value for a two-tailed test at a significance level of 0.10 and df = 9.57 is ±1.833.
Since the calculated t-value (4.36) is greater than the critical value (1.833), we reject the null hypothesis and conclude that there is evidence to suggest that the mean bumper repair cost is greater for small pickups than for small utility vehicles at a significance level of 0.10.
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If $10,000 is deposited into a savings account that pays 2.3% annual interest, how much more would the account be worth if interest were compounded monthly rather than annually over a period of 30 years? Round to the nearest dollar.
Divide the following using long division method: 96431÷63
[tex]96431 \div 63 \: longdivision \: method[/tex]
Answer:
So the answer is 1535 with a remainder of 18.
Step-by-step explanation:
63
96431
-----
96431 - 54249 = 42182
-----
42182
4218
-----
420
---
18
---
PLESSE HELPPPPOPPPPPPPPP
Answer:
Step-by-step explanation:
y = 2x - 6
If WXYZ is a square with WZ = 27, find each measure.
a) ZY = ________ d) mWRZ = ________
b) WY = ________ e) mXYZ = ________
c) RX = ________ f) mZWY = ________
Answer: a) ZY = 27
b) WY = 27
c) RX = 27
d) mWRZ = 90 degrees
e) mXYZ = 90 degrees
f) mZWY = 90 degrees
Step-by-step explanation:
Find the x - and y -components of the vector v⃗ = (3.0 cm/s , −x -direction).
Express your answer in centimeters per second. Enter the x and y components of the vector separated by a comma.
The x-components and y-components of the vector [tex]\mathbf{\hat v}[/tex] are -3.0 cm/s and 0 cm/s, respectively.
What is axis?In mathematics, an axis is a reference line used to locate points in space. It is often used to define a coordinate system, which is a system for representing points and geometric shapes in space using numbers or coordinates.
To find the x- and y-components of the vector [tex]\mathbf{\hat v}[/tex] = (3.0 cm/s, −x-direction), we need to determine the direction of the vector. The notation "-x-direction" means that the vector points in the opposite direction of the positive x-axis. Therefore, the angle between the vector and the negative x-axis is 180 degrees.
The magnitude (or length) of the vector is given by the first component, which is 3.0 cm/s.
The x-component of the vector can be found by multiplying the magnitude by the cosine of the angle:
x-component = magnitude x cos(angle) = 3.0 cm/s x cos(180°) = -3.0 cm/s
The negative sign indicates that the x-component is in the opposite direction of the positive x-axis.
The y-component of the vector can be found by multiplying the magnitude by the sine of the angle:
y-component = magnitude x sin(angle) = 3.0 cm/s x sin(180°) = 0 cm/s
Therefore, the x-components and y-components of the vector [tex]\mathbf{\hat v}[/tex] are -3.0 cm/s and 0 cm/s, respectively.
Expressed as an ordered pair, the components are (-3.0 cm/s, 0 cm/s).
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