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Answers

Answer 1

Answer:

Answer:

A, f(x) ≥ -36

Step-by-step explanation:

The range is all the possible y values, also called f(x) values.

In this case, the range of the graph extends from -36 to infinity, so the correct answer is f(x) ≥ -36.

Let me know if this helps!

Answer 2

Answer:

Answer:

C I think

Step-by-step explanation:

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Give B (-4,-6) under which selection is B'(4,6)?

Use the figure to find the measures of the numbered angles.

Answers

Answer: 5=49, 6= 131

Step-by-step explanation:

9,13,43,55 what is the mean absolute deviate (MAD) of their ages

Answers

The mean absolute deviation (MAD) of their ages is 19 and this can be determined by using the formula of mean absolute deviation.

Given :

Ages - 9 , 13 , 43 , 55

The meanabsolute deviation is given by the formula:

$\rm MAD = (1)/(n)\sum^(n)_(i=1)|x_i-m(X)|$

where n is the total number of data values, $x_i$ is the data value in the set, and m(X) is the average value of the data set.

So, to find MAD first evaluate the value of m(x).

$\rm m(X) = (9+13+43+55)/(4)$

m(X) = 30

Now, the MAD of their ages is:

$\rm MAD = (|9-30|+|13-30|+|43-30|+|55-30|)/(4)$

$\rm MAD=(21+17+13+25)/(4)$

MAD = 19

So, the mean absolute deviation (MAD) of their ages is 19.

For more information, refer to the link given below:

brainly.com/question/7851768

Answer:

The mean absolute deviation of this data $\{9,13,43,55\}$ is $MAD =19$ .

Step-by-step explanation:

The mean absolute deviation (MAD) of a dataset is the average distance between each data point and the mean. It gives us an idea about the variability in a dataset.

The steps to find the MAD include:

find the mean (average)
find the difference between each data value and the mean
take the absolute value of each difference
find the mean (average) of these differences

To find the mean absolute deviation of this data $\{9,13,43,55\}$ you must

Step 1: Calculate the mean.

$\:mean=\bar{x}= (9+13+43+55)/(4) =(120)/(4)=30$

Step 2: Calculate the distance between each data point and the mean and take the absolute value of each difference.

$|9-30|=21\n|13-30|=17\n|43-30|=13\n|55-30|=25$

Step 3: Add the distances together.

$21+17+13+25=76$

Step 4: Divide the sum by the number of data points.

$MAD = (76)/(4) =19$

If m_2= x, m/3=40, and m24=5x + 14, what is mZ1?
A. 80
B. 121
C. 21
D. 61

Answers

Answer:

D. 61

Step-by-step explanation:

find x from the given triangle.

first step is to get x

add all inside angles = 180

∠2 + ∠3 + ∠4 = 180

x + 40 + 5x + 14 = 180

x + 5x = 180 - 40 - 14

6x = 126

x = 126 / 6

x = 21

substitute x=21 into angle 4

∠4 = 5x + 14

∠4 = 5(21) + 14

∠4 = 119

lastly, add ∠1 + ∠4 = 180

∠1 + 119 = 180

∠1 = 180 - 119

∠1 = 61°

therefore, the answer is D. 61

Elsie made a one-sample z interval for a proportion and used the critical value 2 = 1.405.What confidence level did she use?
Choose 1 answer
84%
86%
88%
92%

Answers

Answer:

84%

Step-by-step explanation:

Answer:

84%

Step-by-step explanation:

on Khan Academy

From a random sample of 41 teens, it is found that on average they spend 43.1 hours each week online with a population standard deviation of 5.91 hours. What is the 90% confidence interval for the amount of time they spend online each week?

Answers

Answer:

Step-by-step explanation:

We want to determine a 90% confidence interval for the mean amount of time that teens spend online each week.

Number of sample, n = 41

Mean, u = 43.1 hours

Standard deviation, s = 5.91 hours

For a confidence level of 90%, the corresponding z value is 1.645. This is determined from the normal distribution table.

We will apply the formula

Confidence interval

= mean +/- z ×standard deviation/√n

It becomes

43.1 ± 1.645 × 5.91/√41

= 43.1 ± 1.645 × 0.923

= 43.1 ± 1.52

The lower end of the confidence interval is 43.1 - 1.52 =41.58

The upper end of the confidence interval is 43.1 + 1.52 =44.62

Therefore, with 90% confidence interval, the mean amount of time that teens spend online each week is between 41.58 and 44.62

Pls help me with this and show any work

Answers

Answer: 9.5 (D.)

Step-by-step explanation:

SOCAHTOA

the sin of an angle is equal to the opposite side over the hypotenuse.

angle: 32

opposite side: x

hypotenuse: 18 m

1. sin32 = x/18

2. 18(sin32) = x

3. 9.5 = x

if you are confused with how it went from 18(sin32) to 9.5, you can plug 18(sin32) into your calculator.