Answer:
(x) = 
Step-by-step explanation:
let d(x) = y and rearrange making x the subject, that is
2x - 4 = y ( add 4 to both sides )
2x = y + 4 ( divide both sides by 2 )
x = 
Change y back into terms of x, so
(x ) = 
Answer:
Undefined.
Step-by-step explanation:
Slope = (y2 - y1)/(x2-x1)
Values of x are the same, so x2 - x1 = 0 - 0 = 0
Slope = (y2 - y1)/0
So, slope undefined.
For vertical line, slope is always undefined.
Area of trapezoid = 1/2(b1+b2)h
b1 and b2 are top and bottom bases
so b1 = 15.8 and b2 = 21.8
h is height so h = 11.7
so
A = 1/2(15.8 + 21.8)(11.7)
A = 1/2(37.6)(11.7)
A = 219.96
answer
D. 219.96 yd^2
Answer:
x=8
Step-by-step explanation:
6(x+20)=168
Divide each side by 6
6/6(x+20)=168/6
x+20 =28
Subtract 20 from each side
x+20-20 = 28-20
x =8