Which expression represents the fourth term in the binomial expansion of (e + 2f)10?
a. 10c3(e7)(2f)3
b. 10c3(e7)(f)3
c. 10c4(e6)(2f)4
d. 10c4(e6)(f)4

The fourth term of the binomial expansion can be calculated using the formula for (i+1)-th term of the binomial expansion:

In order to find term , determine that

Now

correct choice is A

-1, -2, -3, -4, -6

step-by-step explanation:

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.