If the area of the circle below is 12 m², what is the area of the shaded sector?
O
90*
OA. 6m²
OB. 4 m²
C. 3 m²
OD. 2 m²
SUBMIT

We would use two means from independent samples. The design is independent samples because the runners and bikers are two different groups and their participation in one sport does not affect the other.

To answer your question, you would use "two means from independent samples." Here's why:

1. You are comparing the resting heart rates of two separate groups (runners and bikers), which makes them independent samples. Participants were only allowed to participate in one sport, further confirming their independence.

2. You are comparing the average resting heart rates of these two groups, which requires using means rather than proportions. Proportions would be used if you were comparing percentages or ratios.

We would compare the mean resting heart rate of the runners to the mean resting heart rate of the bikers who cover more than 5 miles.
So, the appropriate statistical test for this scenario is a comparison of two means from independent samples.

Learn more about Samples:

brainly.com/question/27860316

#SPJ11

Since the values on the y-axis of the graph are arbitrary and not labeled with specific units, we cannot use the graph to calculate the precise height of Olympus Mons in meters.

However, we can use the information given in the problem to estimate that the height of Olympus Mons is significantly greater than the height of Mt. Everest, which is approximately 8,800 meters. In fact, Olympus Mons is the tallest mountain in the solar system, with a height of approximately 22,000 meters (72,000 feet) from its base on the Martian surface to its summit.

Therefore, an approximate height of Olympus Mons is 22,000 meters.

Answer:

1.5π m³

Step-by-step explanation:

The cones are similar.

The scale factor from cone A to cone B is 2/8 = 1/4

The ratio of the volumes is (1/4)³ = 1/64

Volume of cone B:

96π m³ × 1/64 = 1.5π m³

The surface area of the figure formed by the composite boxes is given as follows:

1840 in².

The surface area of a rectangular prism of height h, width w and length l is given by:

S = 2(hw + lw + lh).

This means that the area of each rectangular face of the prism is calculated, and then the surface area is given by the sum of all these areas.

For this problem, we have four boxes, with the dimensions given as follows:

12 in, 10 in and 5 in.

Hence the surface area is given as follows:

S = 4 x 2 x (12 x 10 + 12 x 5 + 10 x 5)

S = 1840 in².

More can be learned about the surface area of a rectangular prism at https://brainly.com/question/1310421

#SPJ1

The coordinates of point Q that partitions line segment AB into the ratio 1:3 is (-0.75, 4.5).

In this scenario, line ratio would be used to determine the coordinates of the point Q on the directed line segment AB that partitions the segment into a ratio of 1 to 3.

In Mathematics, line ratio can be used to determine the coordinates of Q and this is modeled by the following mathematical expression:

Q(x, y) = [(mx₂ + nx₁)/(m + n)],  [(my₂ + ny₁)/(m + n)]

By substituting the given points into the formula for line ratio, we have;

Q(x, y) = [(1(6) + 3(-3))/(1 + 3)],  [(1(0) + 3(6))/(1 + 3)]

Q(x, y) = [(6 - 9)/(4)],  [(0 + 18)/4]

Q(x, y) = [-3/4],  [18/(4)]

Q(x, y) = [-0.75, 4.5]

Read more on line ratio here: brainly.com/question/14457392

#SPJ1

Answer:

It is important to analyze the relationships between a sample and full population for several reasons:

To help make more informed statements about a population: Analyzing the relationships between a sample and full population helps us to make more accurate and informed statements about the population. By examining a sample, we can draw conclusions about the characteristics of the larger population.

To bring diverging data into analysis: Sometimes, a sample may not accurately reflect the larger population, particularly if the sample is small or biased. Analyzing the relationship between the sample and population can help to identify any diverging data and adjust the analysis accordingly.

To limit variance: Variance is a measure of how much the data varies from the mean. By analyzing the relationship between the sample and population, we can better understand the variance and take steps to limit it.

To find out how many data points are necessary to be statistically valid: Analyzing the relationship between the sample and population can help us to determine the sample size needed to be statistically valid. This can help us to avoid drawing inaccurate conclusions based on a sample that is too small.

Overall, analyzing the relationship between a sample and full population is important for ensuring that our analysis is accurate, representative, and informative.

It is important to analyze the relationships between a sample and the full population to limit variance and to help make more informed statements about a population.

Analyzing the relationships between a sample and the full population is important because it helps limit variance in the data and brings diverging data into the analysis. It also helps to determine how many data points are necessary to be statistically valid and make more informed statements about the population.

By examining a sample and comparing it to the full population, we can identify any biases or errors in our data and ensure that our conclusions are accurate and representative of the entire population. Additionally, understanding the relationship between the sample and the population can help us make predictions and draw conclusions with greater confidence and precision.
By understanding the relationship, you can ensure that the sample accurately represents the population, leading to better inferences and decision-making.

Learn more about Variance:

brainly.com/question/13708253

#SPJ11

the answer is produced by chatgpt, it is a good study tool, you can take it as reference

(a) The coordinates of the midpoint AC can be found by taking the average of the x-coordinates and the average of the y-coordinates of points A and C. Therefore, the midpoint AC is at:

((2+11)/2, (-1-2)/2) = (6.5,-1.5)

(b) Since ABCD is a parallelogram, the midpoint of BD is also at (6.5,-1.5). Let D have coordinates (x,y). Then the midpoint of BD is:

((6+x)/2, (2+y)/2) = (6.5,-1.5)

Solving for x and y, we get:

x = 7 and y = -5

Therefore, the coordinates of D are (7,-5).

(c) The two diagonals of a parallelogram bisect each other. Since AC is one diagonal and it passes through the midpoint of BD, the equation of AC can be found using the two given points A and C:

Slope of AC = (y2 - y1)/(x2 - x1) = (-2 - (-1))/(11 - 2) = -1/9

Using point-slope form of a line, the equation of AC is:

y - (-1) = (-1/9)*(x - 2)

y = (-1/9)*x + (17/9)

Similarly, the other diagonal BD can be found using the two points B and D:

Slope of BD = (y2 - y1)/(x2 - x1) = (-5 - 2)/(7 - 6) = -7

Using point-slope form of a line, the equation of BD is:

y - 2 = (-7)*(x - 6)

y = -7x + 44

Therefore, the equations of the diagonals of the parallelogram are:

AC: y = (-1/9)*x + (17/9)

BD: y = -7x + 44

Answer:

[tex]9\pi[/tex]

Step-by-step explanation:

To find circumference you need to use the formula [tex]2\pi r= C[/tex] or [tex]d\pi =c[/tex]. We don't have the radius, but we do have the diameter so we have to use the second formula.

The diameter is 9 so we insert it into the formula.

[tex]d\pi=C\\\\9\pi=C\\\\[/tex]

So the circumference is [tex]9\pi[/tex]

The correct measure of variability and the data from the line plot, indicates that Bus that is the most consistent, based on the range is the Bus 18

Bus 18, with a range of 16

The range of the values in a dataset is the difference between the maximum and minimum values.

The range and the Interquartile Range, IQR are measures of variability of a line plot

The details of the data indicates;

The range of the Bus 47 is 28 - 4 = 24

The interquartile range of the Bus 47 is = 22 - 10 = 12

The range of the Bus 18 = 22 - 6  = 16

The interquartile range of the Bus 18 = 16 - 9 = 7

Whereby the range and the IQR of the travel times of the Bus 18 are lesser than the range and the IQR, of the travel times of the Bus 47, then the Bus 18 travel times varies less, and therefore is more predictable than the travel times of the Bus 47

The bus that is the most consistent based on the Range is therefore;

Bus 18, with a range of 16

Learn more on line plots here: https://brainly.com/question/30612947

#SPJ1

The correct answer is a. the inclusion-exclusion principle must be used to find the number of bit strings of length seven that either begin with two Os or end with three 1s.

This is because we need to subtract the number of bit strings that both begin with two Os and end with three 1s (which are counted twice if we simply add the number of bit strings that begin with two Os and the number that end with three 1s). The inclusion-exclusion principle allows us to do this by first adding the number of bit strings that begin with two Os and the number that end with three 1s, and then subtracting the number of bit strings that both begin with two Os and end with three 1s.

Learn more about strings here:

https://brainly.com/question/30099412

#SPJ11

The personal expenditure was less than the amount budgeted by $126.48.

First, you have to sum up the figures that represent the budget for the month. Now, these will be compared to the actual spending this month. When this calculation is done, the total amount budgeted stands at $2169.83, and the total amount spent stands at $2043.35.

Now, we subtract the amount spent from the amount budgeted and the figure we arrive at is  $126.48. This remnant shows that the person who drew the budget was well within his limit.

Learn more about budgets here:

https://brainly.com/question/6663636

#SPJ1

The fractions 1/2, 2/4, 3/6, 4/8 and 6/12 are the equivalent fractions.

A fraction represents a part of a whole.

Equivalent fractions are the fractions that have different numerators and denominators but are equal to the same value.

Let the fraction be 1/2

1/2×2/2= 2/4

1/2×3/3=3/6

1/2×4/4=4/8

1/2×5/5=5/10

1/2×6/6=6/12

Hence, the fractions 1/2, 2/4, 3/6, 4/8 and 6/12 are the equivalent fractions.

To learn more on Fractions click:

https://brainly.com/question/10354322

#SPJ1

Answer: D

Step-by-step explanation:

typically if something is added on the outside it affects they y, which means it goes up or down

if something is added to the x its left or right

since -5 is on outside shift down.

A graph of each of the function is shown below.

The domain is x = -2, x = 0, x = 1, x = 2.

The range is [-1, -1] U [3, 3].

In Mathematics, a piecewise-defined function is a type of function that is defined by two (2) or more mathematical expressions over a specific domain.

Generally speaking, the domain of any piecewise-defined function simply refers to the union of all of its sub-domains. By critically observing the graph of the given piecewise-defined function, we can reasonably infer and logically deduce that it is constant over the interval x < -2 and x ≥ -2.

Read more on piecewise function here: brainly.com/question/18670055

#SPJ1

Answer:

The answer to your problem is, C. Car C has the best rate at 25 miles per gallon.

Step-by-step explanation:

Well given,

Car C = 450 / 18 = 25

Car B = 361 / 19 = 19

Car A = 340 / 17 = 20

We can see that Car C has the best MPG.

Thus the answer to your problem is, C. Car C has the best rate at 25 miles per gallon.

Answer:

The answer for the Area is 847in²

Step-by-step explanation:

Area of shape=Area of square + Area of trapezoid

A=L²+1/2(a+b)h

A=22²+1/2(11+22)22

A=484+33×11

A=484+363

A=847in²

the   perfect square is : (x+3y)² the term is 6xy

The type of function that models the data in the table is an exponential function

From the question, we have the following table of values that can be used in our computation:

X. Y

-1. 2.5

0. 5

1. 10

2. 20

3. 40

The above definitions imply that we simply multiply 2 to the previous term to get the current term

This means that the function is an exponential function

Hence, the type of function that models the data in the table is an exponential function

Read more about sequence at

brainly.com/question/29431864

#SPJ1

Mutually exclusive events are events that cannot occur at the same time. If one event happens, the other event cannot happen

If the events A and B are mutually exclusive, then the probability of either A or B occurring is:

P(A or B) = P(A) + P(B)

Therefore, we can find the probability of (A or B) using the given probabilities

P(A or B) = P(A) + P(B) = 0.17 + 0.33 = 0.5

So the probability of (A or B) is 0.5.

learn about probability,

https://brainly.com/question/13604758

#SPJ11

There isn't significant evidence to conclude that the overall average Math SAT score in the state differs from the national average of 514 points based on this sample.

To determine if the average Math SAT score of the 36 randomly selected students significantly differs from the national average of 514 points, we can use a t-test with the given information.
1. Null hypothesis (H₀): The overall average Math SAT score in the state is equal to the national average (μ = 514).
2. Alternative hypothesis (Hₐ): The overall average Math SAT score in the state differs from the national average (μ ≠ 514).
3. Calculate the test statistic (t-value) using the formula: t = (sample mean - population mean) / (standard deviation / √sample size)
t = (525.6 - 514) / (69.5 / √36) = 11.6 / 11.583 = 1
4. Determine the degrees of freedom (df): df = sample size - 1 = 36 - 1 = 35
5. Choose a significance level (α), commonly 0.05.
6. Compare the t-value with the critical t-value from a t-distribution table using the chosen α level and degrees of freedom. For a two-tailed test with α = 0.05 and df = 35, the critical t-values are approximately ±2.03.
Since the calculated t-value (1) is not greater than the critical t-value (±2.03), we fail to reject the null hypothesis.

Learn more about t-test here:

https://brainly.com/question/15870238

#SPJ11

to solve an expression with a positive number and a variable raised to a positive power, simplify the expression inside the parentheses and then combine any like terms outside the parentheses.

To solve an expression with a positive number and a variable raised to a positive power, you can use the following steps:

Step 1: Simplify the expression inside the parentheses, if possible.

In this case, (3/x) to the 2nd can be simplified to (3^2)/(x^2) = 9/x^2.

Step 2: Combine any like terms outside the parentheses, if applicable.

If there are no like terms outside the parentheses, then you're done. Otherwise, combine them.

For example, if you had the expression (3/x)^2 + 2(x^2), you could combine the like terms to get:

(9/x^2) + 2x^2

Note that in this step, we can also simplify the expression further by finding a common denominator between the two terms, but that depends on the specific problem.

So, in summary, to solve an expression with a positive number and a variable raised to a positive power, simplify the expression inside the parentheses and then combine any like terms outside the parentheses.

learn about simplifying expressions,

https://brainly.com/question/723406

#SPJ11

The arc length equals 18.85 yd

An arc length is given by L = Ф/360 × 2πr where

To find the arc length of the given circle, given that

So, substituting the values of the variables into the equation, we have that

L = Ф/360 × 2πr

L = 135°/360° × 2π × 8 yd

L = 135°/360° × 16π yd

L = 2160π/360° yd

L = 6785.84 yd/360

L = 18.85 yd

Learn more about arc length here:

https://brainly.com/question/28108430

#SPJ1

Answer:

u still on here Delilah?

Step-by-step explanation:

The correct answer would be

B) half of her classmates have a sibling and half do not

Add totals for classmates who have chores and those who do not have chores for each group.

7 + 8 = 15

9 + 6 = 15

Therefore, the correct answer would be

B) half of her classmates have a sibling and half do not

Based on the fact that the total for the classmates that have chores and those that don't have are equal which is 15, we can conclude that option B is correct.

Read more about algebra here:

https://brainly.com/question/22399890

#SPJ1

Answer:

0.7 radians

Step-by-step explanation:

The equation for converting radians to degrees is:

X radians * 180/pi = degrees

Plugging in 0.7 radians,

we have 0.7 * 180/pi

= approx 40.1070457 degrees.

40.1070457 > 40 degrees,

so 0.7 radians is greater than 40 degrees

The required Isabella would have $6,574.92 in the savings account after 2 years.

After 1 year, Isabella's account would have grown to:

[tex]A = P(1 + r)^n[/tex]

[tex]A = $6,300(1 + 0.02)^1[/tex]

A = $6,426

After 2 years, the account would have grown to:

A = $6,300(1 + 0.02)

A = $6,574.92

Therefore, Isabella would have $6,574.92 in the savings account after 2 years.

Learn more about compound interest here:

https://brainly.com/question/14295570

#SPJ1

a) (572)8
Step 1:  5 - 101, 7 - 111, and 2 - 010
Step 2: Combine the binary equivalents.
(572)8 = (101 111 010)2

b) (1604)8
Step 1: Convert each digit to its 3-bit binary equivalent.
1 - 001, 6 - 110, 0 - 000, and 4 - 100
Step 2: Combine the binary equivalents.
(1604)8 = (001 110 000 100)2

c) (423)8
Step 1: Convert each digit to its 3-bit binary equivalent.
4 - 100, 2 - 010, and 3 - 011
Step 2: Combine the binary equivalents.
(423)8 = (100 010 011)2

d) (2417)8
Step 1: Convert each digit to its 3-bit binary equivalent.
2 - 010, 4 - 100, 1 - 001, and 7 - 111
Step 2: Combine the binary equivalents.
(2417)8 = (010 100 001 111)2

To convert an octal number to binary, we simply need to replace each octal digit with its 3-bit binary equivalent. Here are the steps for each of the given integers:

a) (572)8
- The octal expansion has three digits: 5, 7, and 2.
- To convert each digit to binary:
  - 5 = 101 in binary (since 5 = 4 + 1 = 2^2 + 2^0)
  - 7 = 111 in binary (since 7 = 4 + 2 + 1 = 2^2 + 2^1 + 2^0)
  - 2 = 010 in binary (since 2 = 2^1)
- So the binary expansion of (572)8 is 101111010.

b) (1604)8
- The octal expansion has four digits: 1, 6, 0, and 4.
- To convert each digit to binary:
  - 1 = 001 in binary (since 1 = 2^0)
  - 6 = 110 in binary (since 6 = 4 + 2 = 2^2 + 2^1)
  - 0 = 000 in binary
  - 4 = 100 in binary (since 4 = 2^2)
- So the binary expansion of (1604)8 is 001101000100.

c) (423)8
- The octal expansion has three digits: 4, 2, and 3.
- To convert each digit to binary:
  - 4 = 100 in binary (since 4 = 2^2)
  - 2 = 010 in binary (since 2 = 2^1)
  - 3 = 011 in binary (since 3 = 2 + 1 = 2^1 + 2^0)
- So the binary expansion of (423)8 is 100010011.

d) (2417)8
- The octal expansion has four digits: 2, 4, 1, and 7.
- To convert each digit to binary:
  - 2 = 010 in binary (since 2 = 2^1)
  - 4 = 100 in binary (since 4 = 2^2)
  - 1 = 001 in binary (since 1 = 2^0)
  - 7 = 111 in binary (since 7 = 4 + 2 + 1 = 2^2 + 2^1 + 2^0)
- So the binary expansion of (2417)8 is 010010001111.


Learn more about binary equivalent:

brainly.com/question/68067

#SPJ11

A method to show differences among earth’s layers is "Oscar determines the pressure at different depths of earth’s crust." Option D.

We have,

Generally, the four earth layers are the

The outer crust.

The mantle.

The liquid outer core.

The solid inner core.

In conclusion,  the mineral content of rock core samples at different depths in Earth's crust are the differences among earth’s layers.

D) Oscar determines the pressure at different depths of earths crust.

Read more about Earth

brainly.com/question/24878669

#SPJ1

The functions f(x)=1/3 (1/2)ˣ and f(x) =2(1/3)ˣ represents exponential decay, option C is correct.

The function f(x) = 2(1/3)ˣ represents exponential decay, as the base 1/3 is between 0 and 1.

The other two functions, f(x) = 1/3(1/2)ˣ represents exponential decay, as the base 1/2 is between 0 and 1.

and f(x) = 1/3(2ˣ) does not represent exponential growth as their bases are greater than 1.

Hence, the functions f(x)=1/3 (1/2)ˣ and f(x) =2(1/3)ˣ represents exponential decay.

To learn more on Functions click:

https://brainly.com/question/30721594

#SPJ1

Which of the following functions are an example of exponential growth?

i. f(x)=1/3 (1/2)^x

ii. f(x) =2(1/3)^x

iii. f(x) = 1/3(2^x)

(a) ii and iii only

(b) i only

(c) iii only

(d) i and ii only