Describe a strategy that you could use if you were teaching a first grader, a third grader, and a sixth grader about geometric shapes/concepts. Explain why differentiation is important in this instance. In addition, describe a strategy that you could use if were teaching, or reinforcing, geometric concepts at the high school level (grades 9-12).

95.03 is the answer. hope this !

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!

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7