What is the product? (7x2)(2x®+5)(x2-4x-9)
O 14x5 - X4-46x3 - 58x2 - 20-45
O 14x6 -56x5-91x4 - 140X3-315x2
O 14x7-56x6 - 126x5 + 35x4 - 140x3 - 315x2
O 14x12 - 182x + 35x4 - 455x2

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