Mary is solving the equation 5^x + 4 =11. her first steps are shown. step 1. 5^x + 4 =11 step 2. 5^x =7 step3. in5^x=in7 which shows step 4? a. in 5 = x in 7 b. x in 5 = in 7 c. ^-in 5 = in 7 * x d. x = in 7 - in 5

Option B. x In 5 = In 7

Step-by-step explanation:

we have

step 1

step 2

Subtract 4 both sides

step 3

Apply ln both sides

step 4

step 5

Divide by ln(5) both sides

1 is c

2 is a

3 is a

step-by-step explanation:

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