Answer:
x = -2
Step-by-step explanation:
Distribute: 18x + 24 = 4x - 4
Subtract 4x from both sides: 14x + 24 = -4
Subtract 24 from both sides: 14x = -28
Divide both sides by 14: x = -2
First you have to multiply -2 and 2 which is -4x.
Then your going to distribute -4 to 4x which is -16x.
Now your going to distribute -4 and -3 which is 12.
So your simplified expression would be -16x + 12
Answer:
Multiply (x)
Step-by-step explanation:
If you multiply 15.5 x 3.90 it will give you the total amount of money Chris and Jeff earned.
Answer:
16 + sqrt(128)
Step-by-step explanation:
find the lengths of all 3 sides:
the side from (-9,8) to (-9,16) will be 16-8=8 (x stays constant)
The side from (-9,8) to (-17,8) is 8 (-9- (-17)=8)
The side from (-9,16) to (-17,8) will be found from the distance formula
d=sqrt((-17-9)^2 + (8-16)^2))
= sqrt(128)
So the perimeter will be these 3 numbers added together
P=sqrt(128) + 8 + 8
= 16 + sqrt(128)
which can simplify to:
= 16 + 4sqrt(8)
= 16 + 8sqrt(2) = 8+ sqrt(2)
