What is the value of x to the nearest tenth?

  37.0

Step-by-step explanation:

Half of x is the longer leg of the right triangle shown. That leg length can be found using the Pythagorean theorem:

  x/2 = √(24.6² -16.2²) = √(605.16 -262.44) = √342.72

  x ≈ 2×18.513 ≈ 37.025 . . . . . . rounding to 3 decimal places

  x ≈ 37.0

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

the answer would be c:   ax + b = ax + c

step-by-step explanation: