A ball is kicked upward with an initial velocity of 52 feet per second. The ball's height, h (in feet), from the ground is modeled by h = negative 16 t squared + 52 t, where t is measured in seconds. How much time does the ball take to reach its highest point? What is its height at this point? a. 1.625 sec; 84.5 ft
b. 1.625 sec; 42.25
c. 3.25 sec; 42.25 ft
d. 3.25 sec; 126.75 ft.

Students buying lunch at rockwell elementary school yesterday chose either burritos or pizza. 185 students chose burritos and 252 chose pizza. 1. estimate the number of students who brought lunch by rounding each number to the nearest hundred. 2. estimate how many students bought lunch by rounding each number to the nearest ten. 3. find the total number of students who brought lunch. which of your estimates is closer to the actual total? explain. 4. draw a figure on a sheet of paper. estimate how many pennies will fit inside the figure. check your prediction using pennies.

Determine whether the samples are independent or dependent. upper a data set includes the morning and evening temperature for the lasta data set includes the morning and evening temperature for the last 90 days.90 days.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?