Answer:
x=1/4
y = -2
(1/4, -2)
b
Step-by-step explanation:
4x -y =3
y =-8x
substitute y =-8x into the first equation. Everywhere you see y put 8x
4x -y =3
4x - (-8x) =3
4x+8x=3
combine like terms
12x = 3
divide by 12
12x/12x = 3 /12
x = 1/4
now we need to find y
y = -8x
y = -8 * 1/4
y = -2
Answer:
Step-by-step explanation:
We have two triangles and three rectangles.
The formula of an area of a triangle:
b - base
h - height
The formula of an area of a rectangle:
l - length
w - width
TRIANGLE:
b = 11 in, h = 7 in
RECTANGLE 1:
l = 11 in, w = 14 in
RECTANGLE 2:
l = 9 in, w = 14 in
RECTANGLE 3:
l = 8 in, w = 14 in
The Surface Area:
Substitute:
Answer:
A
C
B
5
Step-by-step explanation:
hope that helped