A weather station on the top of a mountain reports that the temperature is currently 0 degrees and has been falling at a constant rate 3 degrees Celsius of per hour. What will the temperature be in 2 hours?

-6

Step-by-step explanation:

0-(3x2)= -6

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 answer is a.

step-by-step explanation:

in three games of golf, alex shot two under par four times.