Hello!
The correct answer is C. 2.5 To figure this out, we can multiply each answer choice by x, or (4, 8, 12).
Hope this helps! ☺♥
Answer:
<h2>x = 22 and y = 24</h2>
Step-by-step explanation:

Yo sup??
To find velocity just differentiate the function r once wrt to t
v=dr/dt=(9t^2-1)i+(4t+2)j)
and to find acceleration differentiate v wrt to t
a=dv/dt=18ti+4j
Hope this helps.