Ziknak is entering Mr. Acadaba's Futuristic Machine Contest. FOr the contest, Ziknak draws blueprints for a time machine. The base of the time machine is a rectangle inscribed in a circle. The circle's circumference is 2πw+π, where w is the width of the rectangle. If the length of the rectangle is twice the width, what is the area of the rectangle?

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney

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!

4932,9180,7625 are divisible by 9