3 years ago

PLEASE LOOK AT PICTURE! WHOEVER HAS CORRECT ANWSER I WILL MARK BRAINIEST!!!

Mathematics

1 answer:

Dimas [21]3 years ago

3 0

Answer:

Its A

Step-by-step explanation:

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I know he is incorrect but I just can’t say why please help

egoroff_w [7]

Answer:

Step-by-step explanation:

Umm, Wheres Tanner's graph? Please post it so that I could answer your question!! :)

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3 years ago

Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 7.5 parts

Hunter-Best [27]

Answer:

The value of the test statistic is $t = 2.1$

Step-by-step explanation:

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected value, $\sigma$ is the standard deviation and n is the size of the sample.

The level of ozone normally found is 7.5 parts/million (ppm).

This means that $\mu = 7.5$

The mean of 24 samples is 7.8 ppm with a standard deviation of 0.7.

This means that $X = 7.8, \sigma = 0.7, n = 24$

Test Statistic:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{7.8 - 7.5}{\frac{0.7}{\sqrt{24}}}$

$t = 2.1$

The value of the test statistic is $t = 2.1$

7 0

3 years ago

Solve the inequality for w. w-7<21

Radda [10]

Add 7 to each side of the inequality.

w < 28.

8 0

3 years ago

Twelve more then the product of 5 and a number x? x is 2

yaroslaw [1]

Answer:

Step-by-step explanation:

5 * 2 = 10

10 + 12 (because 12 more)

=22

3 0

3 years ago

Solve for the value of C

Helga [31]

Answer:

c = 50

Step-by-step explanation:

We can set up an equation using the vertical angles theorem.

97 = 2c-3

100 = 2c

c = 50

4 0

2 years ago

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