This table shows temperatures in an Arctic city during one winter week.
Complete the table.
Day
Temperature at
Midnight (°F)
Temperature
Change From
Midnight to
Noon (°F)
Temperature at
Noon (°F)
Monday
-32
20
-12
Tuesday
-17.5
-11
Wednesday
15.5
10.5
Thursday
-12.2
- 24
Friday
-21.8
17.3

what do you need me to answer?

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