The elevation of city A is 60 feet above sea level; the elevation of city Cis 12 feet above sea level
The elevation of city Dis 2 of the elevation of city C.1
Part A: Write an expression to represent the elevation, in feet, of city D.
Part B: Solve the expression and explain why the answer is negative or positive.
Full sentence pls

answer is c

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

1,8,15,22,29,36,43,50

step-by-step explanation:

4.5%

step-by-step explanation: