a ball is thrown in air and it's height, h(t) in feet, at any time, t in seconds, is represented by the equation h(t) = -42 + 16t. when is the ball higher than 12 feet off
the ground?
a.1 b. 4 < t < 12
c.1 d. 3

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Nikolas calculated the volume of the prism. his work is shown below.