3 years ago

Please help its number 4

Mathematics

2 answers:

Veseljchak [2.6K]3 years ago

6 0

Answer:

E 60+60+60=180 sum of triangle's angels must be 180

Scrat [10]3 years ago

6 0

180 !!! hope this helps

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Math is hard, please help this idiot TwT

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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 $t = 2.1$

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2 years ago

Help asap thx u and plz if u do help say the number for the ancer 1-5

lesya692 [45]

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A teacher brought some apples to distribute among students. After distributing 19 pounds of apples, 3 pounds of apples were left

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Find solution to logarithm.

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3 years ago

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