Use the formula below to solve the given problem. In the formula, d represents the distance an object falls, in meters, and t represents the time that an object falls, in seconds. Do not include units in your answer. A rock dropped down a well takes 5 seconds to fall to the bottom of the well. What is the depth of the well?

Square root of d = t • square root of 4.9

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

i belive the biggest ratio would be 18: correct me if im wrong