At the beginning of the day, the stock market goes up 70 3/4 points and stays at this level for most of the day. At the end of the day, the stock market goes down 100 1/2 points from the high at the beginning of the day. What is the total change in the stock market from the beginning of the day to the end of the​ day?

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

95.03 is the answer. hope this !

9x

i'm not really sure how to answer that

step-by-step explanation: