Acar maintains a speed of 23 mi/h for five seconds it then accelerates to a speed of 46 mi/h in 5 seconds it maintains that speed for the next 5 seconds which graph shows the cars speed over time

We are given a information that:

A car maintains a speed of 23 mi/h for five seconds it then accelerates to a speed of 46 mi/h in 5 seconds it maintains that speed for the next 5 seconds.

i.e. from 0-5 sec the speed of car is constant i.e. 23 mi/h.

Hence, we will get a straight horizontal line from 0-5 sec.

Then the speed reaches to 46 mi/h at 10 sec and the speed increases continuously.

Then after 10 sec-15 sec it maintains that speed i.e. the speed is again constant between the interval 10-15 i.e. again a horizontal line is obtained in that interval.

The graph is attached to the answer.

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!

using pemdas, (order of operations) you'll see the answer is 24.