Use the given information and a calculator to find to the nearest tenth of a degree

Mathematics

1 answer:

Schach [20]3 years ago

8 0

Answer:

111.4 degrees

Step-by-step explanation:

Let's write cos x = -0.3646. Or, look up the symbols chart at the bottom of your page and click on Ф to obtain this character: cos Ф = -0.3646.

If Ф is in Quadrant III, then the adjacent side is negative and the hypotenuse is positive.

-1

Type this into your calculator: cos -0.3646. Result: 1.934 (radians)

This converts to degrees as follows:

1.934 rad 180 degr

--------------- * --------------- = 111.4 degrees. Note that this angle is in QIII.

1 π rad

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