Maria is making brownies for her sister's party. The oven heats up 4.9º F in the first second, 14.7º F in the second second, and 24.5º F in the third second. How many degrees would the oven heat up in the tenth second? Select one: a. 102.9 º F b. 93.1 º F c. 88.2 º F d. 83.3 º F

step-by-step explanation:

answer is 144

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

4 candies

step-by-step explanation:

7 x 28 = 196

200 - 196 = 4 candies remaining.