All categories

3 years ago

PLEASE ANSWER CORRECTLY MARK YOU BRAINLIST.1.What is the value of f(–2)for the function f(x)=13x − 4?

Mathematics

1 answer:

USPshnik [31]3 years ago

6 0

Answer:

1. A

2. D

I'm sorry if I'm wrong

You might be interested in

Problem 3

lukranit [14]

62 dollars left in the tax

3 0

3 years ago

Read 2 more answers

In a recent survey by the National Association of Colleges and Employers, the average starting salary for college graduate with

puteri [66]

Answer:

A sample size of 21 is needed.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

Using an estimated standard deviation of $11,605

This means that $\sigma = 11605$

What sample size do you need to have a margin of error equal to $5000 with 95% confidence

A sample size of n is needed. n is found when M = 5000. So

$M = z\frac{\sigma}{\sqrt{n}}$

$5000 = 1.96\frac{11605}{\sqrt{n}}$

$5000\sqrt{n} = 1.96*11605$

$\sqrt{n} = \frac{1.96*11605}{5000}$

$(\sqrt{n})^2 = (\frac{1.96*11605}{5000})^2$

$n = 20.69$

Rounding up,

A sample size of 21 is needed.

5 0

3 years ago

Sea World has 9 aquariums with small fish in them and the number of fish in each tank are shown below: 45, 10, 48, 19, 36, 25, 6

crimeas [40]

Answer:

Step-by-step explanation:

To find the range, subtract the lowest number from the highest number

Arrange the numbers from least to greatest

45, 10, 48, 19, 36, 25, 63, 14, 37

10, 14, 19, 25, 36, 37, 45, 48, 63

The highest number is 63, and the lowest is 10

Now, subtract the lowest (10) from the highest (63)

highest - lowest

63-10

So, the range of the number of fish is 53

4 0

3 years ago

Please help me . please

Nimfa-mama [501]

Answer:

C’ (-4.5, 3)

Step-by-step explanation:

3/4 x (-6)= -4.5

3/4 x (4)= 3

3 0

3 years ago

A group of 39 ladies is going to a

nadya68 [22]

Answer:

6 jeeps are needed. the last jeep will fit 4 people because you cant logically cut a jeep in half to make it perfectly sized. In this case its 6 jeeps as your answer.

6x7=42

3 0

3 years ago

Read 2 more answers