To find the missing side length of each triangle, use the pythagorean theorem. The theorem is $a^2 + b^2 = c^2$ where a, b, and c are all side lengths of the triangle. a is the smallest lef and b is the other leg while c is always the hypotenuse or longest side.

In d, you'll use it twice to find the missing measure. First use it when a = 12 and b = 20. So you'll have:

$12^2 + 20^2 = c^2\\144 + 400 = c^2\\544 = c^2\\\sqrt{544} = c\\ 23.32 = c$

Repeat the same process using a = 9 and c = 23.32. Then solve for the b value.

$9^2 + b^2 = 23.32^2\\81 + b^2 = 544\\b^2 = 544 - 81\\b^2 = 463\\b = \sqrt{463} \\b = 21.5$

4 0

3 years ago

I need both Rn !!!! <br> Pls help

mixas84 [53]

The first one is:-89
Second one is:False

3 0

3 years ago

16% of all Americans live in poverty. If 41 Americans are randomly selected, find the probability that

Andre45 [30]

KAJAISJAKAHWJ 56791827282292881811827 mIllOn

3 0

2 years ago

Use complete sentences to describe the domain of the cosine function.

Hatshy [7]

The domain of a function is the set of the possible input values of the function. For example: consider the function f(x) = cos x, the domain of the function is the set of possible values of x.

The cosine function takes x values from all real numbers.

Therefore, the domain of the cosine function is a real numbers.

6 0

2 years ago