The deck of a bridge is suspended feet above a river. If a pebble falls off the side of the bridge, the height, in feet, of the pebble above the water surface after seconds is given by . Find the average velocity of the pebble for the time period beginning when and lasting

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.

Astore ordered 750 candles a total wholesale cost of $7910.20. the soy candles cosy $12.17 each and thespecialty candles cost $9.58each. how many of each were bought?

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?