Need on this for exam! !
a catapult is sitting on the edge of a cliff and launches a rock over a canyon. the height of the rock from the ground, h(t), over time, t, can be modeled by a quadratic function.
each of the following functions is a different form of the quadratic model for the situation given above. which form would be the most if attempting to determine the maximum height of the rock?
a. h(t) = -16t2 + 128t + 320
b. h(t) = -16(t - 4)2 + 576
c. h(t) = -16t(t - 10) - 32(t -10)
d. h(t) = -16(t - 10)(t + 2)

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.