4) suppose y varies directly with x, and y = 7 when x = 2. find y when x = 21.

73.5

Step-by-step explanation:

y=kx

where k is a constant

y=7

x=2

7=2k

k=3.5

what about when x=21

y=3.5*21

y=73.5

answer: 26

step-by-step explanation:

well, michelle wanted to measure the height of her school's flagpole she placed a mirror on the ground 48 feet from the flagpole then walk backwards until she was able to see the top of the pole in the mirror her eyes were 5 feet above the ground and she was 12 ft from the mirror using similar triangles find the height of the flagpole to the nearest tenth of a foot find the geometric mean of them pair of numbers. its easy math

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.