-8c-18=-3(c-4)
solve for c

c= -6

Step-by-step explanation:

1) expand the equation to -8c-18=-3c+12

2) add 18 to both sides which then makes it -8c=-3c+30

3) add 3c to both sides which makes it -5c=30

4) then divide by -5 which makes it c=-6

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!