Find the height of the parabolic balloon arch for the prom when the position of the bottom anchors are x equals 3 and x equals 7

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?