Question A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will
remain radioactive after 40 minutes? Round the answer to the nearest tenth of a gram, and do not include the unit in your
answer.

c

-by-step explanation:

it would be c

thus, the first answer choice, y = sec x, is the correct one

i don’t see a picture

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