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Nookie1986 [14]
3 years ago
15

Need help math problem

Mathematics
1 answer:
kipiarov [429]3 years ago
6 0

Answer:

Question 16: 44 inches

Question 18: 10, 24, 26

Step-by-step explanation:

<em><u>Question 16:</u></em>

Pythagoras Theorem: c^2 = a^2 + b^2, where c is the hypotenuse and the longest side.

125^2 = 117^2 + b^2

15,625 = 13,689 + b^2

15,625 - 13689 = b^2

1936 = b^2

√1936 = b

44 = b

<em><u>Question 18: </u></em>

Pythagoras Theorem: c^2 = a^2 + b^2, where c is the hypotenuse and the longest side. You have to try all the possibilities. The ones that match are the lengths.

The answers are 10, 24, 26

c^2 = a^2 + b^2

26^2 = 10^2 + 24^2

676 = 100 + 576

676 = 676

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Right triangle XYZ has right angle Z. If the sin(X)=1213<br> , what is the cos(X)
AlekseyPX

Given:

Right triangle XYZ has right angle Z.

\sin(x)=\dfrac{12}{13}

To find:

The value of \cos x.

Solution:

We know that,

\sin^2(x)+\cos^2(x)=1

\cos^2(x)=1-\sin^2(x)

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For a triangle, all trigonometric ratios are positive. So,

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It is given that \sin(x)=\dfrac{12}{13}. After substituting this value in the above equation, we get

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