HELLO? IM SHOUTING FROM OUTER SPACE PLEASE COME HELP! lol The equation $y = -6t^2 + 51t$ describes the height (in feet) of a projectile launched from the surface of Mars at 51 feet per second. In how many seconds will the projectile first reach 108 feet in height? I'll mark you as the brainliest answer if it's correct!!! No one answered so im increasing points

4 sec

Step-by-step explanation:

y = -6t^2+51t

108 = -6t^2+51t

using quardratic formula you find:

t = 4

t=4.5

since they ask for when it will FIRST reach 108 ft, then

t = 4

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2

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step-by-step explanation:

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