In an experiment, the control variable is y and the response variable is z. Which variable is not manipulated, but measured, and represents the data
being recorded?
A. Both y and z
B. Neither y nor z
C. z
O D. y

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

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.

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6