The function S(x) = 16x – 8 is used by Social Media, where S(x) is the number of times the Social Media app is used in hundreds and x is time in minutes. Find S(x) for a half hour. What does it mean in context to the story?
Find S(x) = 1432. What does it mean in the context of the story?

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

i think it would be c

mark brainliest if im right

step-by-step explanation: