C=1 because you are flipping it over the line so it cant be negative
Let the base of the ladder be x ft and the extension be y ft.
"when fully extended, a ladder is 28 feet in length."
means: x+y=28
"<span>the extension is 4 feet shorter than the base</span>"
means: y=x-4, that is x-y = 4, (taking y to the side of x, and -4 to the other side of x and y)
thus, we have the system of equations:
1) x+y= 28
2) x-y=4
adding the 2 equations, we have:
(x+y)+(x-y)=28+4
2x=32
x=32/2=16
x+y=28, so 16+y=28, thus y=12
Answer: Base: 16, Extension 12
Answer:
C: S, Q
D: 80
E: Area: 80 Perimeter: 40
F: Area: 48 Perimeter: 28
I hope this is right!!
Answer:
the exact answer is 314.159265359
Step-by-step explanation:
but it simplifies to 314.16
