An object is placed outside on a cold day at time t = 0 minutes. The temperature of the object T(t) in degrees celsius is shown in the graph above.
A) What does the statement T(10)=15 mean in the terms of the temperature of
the object? Be sure to use correct units.
B) Explain what the vertical intercept (a) and the horizontal intercept (b) mean in
terms of the temperature of the object. Be sure to use correct units.

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

answer:

125 yards

explanation:

75+50=125. that is my answer