Maggie is rock climbing. After reaching the summit, she descends 14 feet in 2\frac{1}{3} minutes. If she continues at this rate, where will Maggie be in relation to the summit after 8 minutes? (A) –24 feet

(B). –32 feet

(C) –40 feet

(D) –48 feet

It is given Maggie descends 14 feet in 2  minutes .

Or Maggie descends 14 feet in  minutes

We need to find how much Maggie will descent in 8 minutes. Let Maggie descends x feet in 8 minutes.

We can form a proportion with given information's.

Cross multiplying

Solving for x , x=48 ft.

Maggie in relation to the summit after 8 minutes will be at 48 ft.

Step-by-step explanation:

sine

step-by-step explanation:

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!