So, 4 x 3 is 12, so 4 blades cost 79.74 x 3 (because every turbine has 3 blades each) is 318.96
Answer:
A
Step-by-step explanation:
The first one is -2x + 3
The seconf one is -2x +7
Look, same slope.
HA + bA = 2
A(h+b) = 2
A = 2/h+b
Answer:
see below
Step-by-step explanation:
y = 8x − 9
y = 4x − 1
Since the two equations are both equal to y set them equal to each other
8x -9 = 4x-1
Subtract 4x from each side
8x - 9 -4x = 4x-1-4x
4x -9 = -1
Add 9 to each side
4x-9+9 = -1+9
4x = 8
Divide by 4
4x/4 = 8/4
x=2
Now find y
y =4x-1
y = 4(2) -1
y = 8-1
y = 7
(2,7)
The solution to the system of equations is where the two lines intersect. When the two lines are graphed, they will intersect at (2,7)
