A rocket is launched straight up from a 30-foot platform at an initial velocity of 325 ft./sec. The following equation represents the height of the rocket, where t represents time in seconds and h represents height in feet.ℎ=−162+ 325+ 30 a) When will the rocket hit the ground?
b) What is the maximum height?
c) When will it reach the maximum height?d) How high will the rocket be 6 seconds after launch?e) When will the rocket reach a height of 1000 feet?

y=x+9

?

step-by-step explanation:

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.

step-by-step explanation:

what is the figure? attach a picture.