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3 years ago

Find the value of x to the nearest tenth.

Mathematics

2 answers:

Leona [35]3 years ago

8 0

Answer:

x = 9

Step-by-step explanation:

Given : A triangle with angle 39 degree.

To find : Find the value of x to the nearest tenth.

Solution : We have given

A triangle with angle 39 degree and hypotenuse = x.

Adjacent side = 7 .

Cos(theta) = $\frac{Adjacent}{Hypotenuse}$ .

Plug the values

Theta = 39 degree.

Cos(39) = $\frac{7}{x}$ .

x = $\frac{0.777}{7}$ .

x = 9.09

Nearest tenth is 9.09

Therefore, x = 9

rosijanka [135]3 years ago

3 0

Check the picture below

the angle is in degrees, thus, make sure your calculator is in Degree mode

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Kaylis [27]

Hello!

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