Mariela earned the following test scores in math:

95, 90, 100, 85, 80

Mr. Adams accidentally entered Mariela’s next test score as 0. Which of these statements are true? Check all that apply.

,xzgv

step-by-step explanation:

; oqirjg'

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!

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

answer: an 8-foot rope is tied from the top of a pole to a

stake in the ground, as shown in the diagram

below

step-by-step explanation: