Is this proportional? Explain why. X=
HOURS
Y=
COST
1
3
Ordered pair
(x, y)
(1,3)
(2,6)
(4,12)
(5,15)
2
6
4
12
5
15

yes

Step-by-step explanation:

The graph will be proportional if y/x is equal to a constant

3/1 =3

6/2 = 3

12/4 = 3

15/5=3

Since they are all equal to the same constant

The equation for the line is of the form

y = kx  or y = 3x

This is proportional

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet