In february, alec had 1,571 visitors to his website. in march, he had 1,380 visitors to his website. what is the percentage decrease of the number of visitors to alec's website from february to march? if necessary, round to the nearest tenth of a percent. a. 12.2% b. 13.9% c. 13.8% d. 87.8%

The answer is A. 12.2%

you times 1380 by 100 which equals 138,000

now divide 138,000 by 1571 the you get ≈ 87.8%

87.8% is the percent of 1380, so you have to subtract 100 by 87.8 and you get 12.2%.

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2