Find X. Round your answer to the nearest tenth of a degree.

48.6 degrees

Step-by-step explanation:

The sine function is appropriate here:

                 9

sin x = = 0.75

                12

The inverse sine function arcsin x provides with the angle measurement:

arcsin 0.75 = 0.848 radian, or 48.6 degrees

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p