4(-7x - 9y - 9) =
-28x - 36y - 36 <==
Answer:
goo goo ga ga 7*4-6(90)÷78
Answer:
w = 12
Step-by-step explanation:
The answer is here
let be L the length of each ramp
so the <span>the length of the entire dog walk, including both ramps is D, such that
</span>D=L + L + d, where d=12ft
L=hypotenus, and sin30° = 4.5ft x L so L= sin30° / 4.5= 1/2x 4.5=2.25ft
D=2.25ft+2.25ft +12ft=16.5ft