Which expression is equivalent to -0.2 - 4.9−0.2−4.9minus, 0, point, 2, minus, 4, point, 9? Choose 1
Choose 1

(Choice A)
A
0.2 - (-4.9)0.2−(−4.9)0, point, 2, minus, left parenthesis, minus, 4, point, 9, right parenthesis

(Choice B)
B
-0.2+4.9−0.2+4.9minus, 0, point, 2, plus, 4, point, 9

(Choice C)
C
-0.2+(-4.9)−0.2+(−4.9)minus, 0, point, 2, plus, left parenthesis, minus, 4, point, 9, right parenthesis

(Choice D)
D

Ahigh-altitude spherical weather balloon expands as it rises, due to the drop in atmospheric pressure. suppose that the radius r increases at the rate of 0.02 inches per second, and that r = 36 inches at time t = 0. determine the equation that models the volume v of the balloon at time t, and find the volume when t = 360 seconds. v(t) = 4π(0.02t)2; 651.44 in3 v(t) = 4π(36 + 0.02t)2; 1,694,397.14 in3 v(t) = four pi times the product of zero point zero two and t to the third power divided by three.; 4,690.37 in3 v(t) = four pi times the quantity of thirty six plus zero point zero two t to the third power divided by three.; 337,706.83 in3