The cn tower in toronto, canada, is the tallest free-standing structure in north america. a woman on the observation deck, 1150 ft above the ground, wants to determine the distance between two landmarks on the ground below. she observes that the angle formed by the lines of sight to these two landmarks is 43 degrees. she also observes that the angle between the vertical and the line of sight to one of the landmarks is 62 degrees and to the other landmark is 54 degrees. find the distance between the two landmarks.

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