Question

What is the measure of angle X to the nearest degree if Sin X = 4/9

Select one:
O a. 7 degrees
O b. 64 degrees
O c. 83 degrees
O d. 26 degrees
5 Multiplying Polynomials and

Answer 1

d. 26 degrees

Explanation:

You want to know the angle whose sine is 4/9.

Arcsin

The angle is found from its sine using the inverse sine function. On many calculators, that is designated as Sin⁻¹. It is often a second function of the Sin key. For this problem, the calculator must be in degrees mode.

The angle X such that sin(X) = 4/9 is about 26 degrees.