Examine the following and determine whether it shows exponential growth or
decay: Ms. Norris invested $20,000 in a mutual fund when she was 16. If it
increases by 12% each year, how old will she be when she has a million dollars in
the fund? *
Decay?
Growth?

168

step-by-step explanation:

i am pretty sure that the answer is 168

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

and?

step-by-step explanation: