Answer:

Step-by-step explanation:
Given that,
The surface of the ramp will be 7 feet long with a total rise of 2 feet.
We need to find the angle of elevation of the ramp. We can use trigonometry to find it such that,

P is perpendicular
H is hypotenuse
Here, P = 2 feet, H = 7 feet
So,

So, the angle of elevation of the ramp is equal to
.
Answer:
18
Step-by-step explanation:
4.2 • 3= 12.60
2.7 • 2= 5.4
12.6+ 5.4=
18.0
Answer:
15.
Step-by-step explanation:
f(x)=9+2x
x = 3, so f(3) = 9 + 2(3)
= 15.
Answer:
k = 63
Step-by-step explanation:
k/3 - 9 = 12
isolate variable + 9 both sides
k/3 = 21
multiply both sides by three, therefore
k = 63
check:
63/3 - 9 = 12
21 - 9 =12
12 = 12
hope this helps!
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation: