The scatter plot and a line of best fit show the relationship between the number of hours Jimmy used his electronic gadgets and the number of batteries he used for the gadgets. Which statement describes the relationship between the number of hours Jimmy used his different electronic gadgets and the number of batteries he used for the gadgets?
A.
For every decrease in three hours of usage, Jimmy had to use two more batteries.

B.
For every increase in three hours of usage, Jimmy had to use two more batteries.

C.
Less than three batteries were used in five hours.

D.
Jimmy used seven batteries.

b. x- 48 =120

step-by-step explanation:

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

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