Compare 8 x 10^3 and 6 x 10^4.

a) 6 x 104 is 7.5 times larger than 8 x 103

b) 6 x 104 is 5 times larger than 8 x 103

c) 6 x 104 is 8.5 times larger than 8 x 103

d) 8 x 103 is 7.5 times larger than 6 x 104

The answer is A on USatestpreP

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!