In the function y = .08x + 5, y represents the cost of water per gallons and x represents the number of gallons. how much does the cost of water increase for every gallon?
question 6 options:
a) x
b) $0.08
c) $5.00
d) $5.08

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

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation:

b

step-by-step explanation: