What two numbers can multiply to get +15, however, add together to get -9?

Step-by-step explanation:

Only 3 and 5

1 and 15

Multiply to give you 15

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!