The first astronaut on mars tosses a rock straight up. The height, h, measured in feet after t seconds, is given by the function h(t) = -6^2+24t+6. A. After how many seconds will the rock be 30 feet above the surface?
B. After how many seconds will the rock be 10 feet above the surface?
C. How many seconds will it take for the rock to return to the surface?
D. The same action on earth is modeled by the equation g(t) = -16t^2+24t+6. On earth, how many seconds would it take for the rock to hit the ground?

eveidence i thing that

step-by-step explanation:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn