KATE RECORDED THE TIME IT TOOK SIX CHILDREN OF DIFFERENT AGES TO RUN ONE LAP AROUND THE TRACK. WRITE AND EQUATION FOR THE LINE OF BEST FIT, THEN ESTIMATE THE LENTGH OF TIME IT WOULD TAKE FOR HER 5-YEAR OLD BROTHER TO RUN ONE LAP.

idk what the answer is but for the points

step-by-step explanation:

the first one and the second one that's the answer

78.59 is the mean

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!

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.