Elizabeth invested $7,800 in an account paying an interest rate of 7 1/8% compounded monthly. Mason invested $7,800 in an account paying an interest rate of 7 3/8% compounded continuously. To the nearest dollar, how much money would Elizabeth have in her account when Mason's money has doubled in value?

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊

i think da answer is

d.square root of 3