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3 years ago

Find the lateral and surface area of the figure.

Mathematics

1 answer:

katovenus [111]3 years ago

8 0

The lateral and surface area of the figure is 21

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A garden wall is 4 feet in height and has a 6-foot shadow. A tree in the garden casts a 24-foot shadow at the same time of day.

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Express x in terms of the other variables in the diagram below:

GrogVix [38]

For the answer to the question above, just use similar triangles.
Here's the equations that I used.

t/h = (x + t) / r 
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I hope my answer helped you in your problem, Have a nice day

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grigory [225]

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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 $t = 2.1$

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3 years ago