Question 1 of 10 Which of the following is not a characteristic of both surveys and
observational studies?
A. Data are collected about a population.
B. Results are not used to prove cause and effect.
C. The researcher does not control or change the population.
D. The researcher exercises direct control over at least one variable.
SUB

the monthly balance will be $75,000

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36

first 15 divide by 2 = 7.5

100 divided by 7.5 is 13.

15 / 2 = 7.5

100 / 7.5 = 13.