16. The diameter of machine screw is about 6.5 x 10-2 millimeter. Is it more appropriate to report the diameter of the machine screw as 6.5 x 10-2 millimeter or 6.5 x 10-meter? Explain your reasoning.

a. 6.5 x 10-2 millimeter; the number is very small, so choosing a smaller unit of measure is more meaningful.
b. 6.5 x 10-meter; meter is a larger measurement, so choosing a larger unit is more meaningful.
C. none of these
d. not enough information given

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