If you don’t know for sure don’t answer this is a test and I don’t wanna get it wrong :)

3^3 = 27, so 3 is a good value.

(-3)^3 = -27, not it's not -3

9^3 = 729, so 9 is not good.

(-9)^3 = -729, so -9 is not good.

The answer is A) x=3.

The sine of the measure of an angle in a right triangle, is the ratio of the opposite side of that angle, to the hypotenuse.

The cosine of the measure of an angle in a right triangle, is the ratio of the adjacent side of that angle, to the hypotenuse.

According to these, we have:

and

Thus, the ratios of both are identical

Step-by-step explanation:

Please give me brainliest