find the dot product, a * b.

a=6i+5j, b= -5i +4i

a.50 b. < 1,9> c. -10 d. < -30,20>

i think d is right but i have doubts

- 70

this is the answer for you hope it

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.