Which of the following statements is true?A. Main sequence stars are the largest stars. B.Cool stars are blue. C.Most stars are main sequence stars. D.Red stars are hot.

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

60 for the first and 130 for the second

step-by-step explanation:

he is going to fill two shelves and the third shelf will only have five video games

same question do you know the answer