I believe it is 8x.
Use the formula A=1/2(b*h)
A=1/2(4x(5x-1))
A=1/2(20x-4x)
A=1/2(16x)
A=8x
Answer:

Step-by-step explanation:
We want to find the inverse of the function:

To find the inverse of a function, we will flip the variables and solve for <em>y</em>. So:

Solve for <em>y</em>. Subtract two from both sides:

Divide both sides by two:

And take the principal square root of both sides. Therefore:

Answer: 12
Step-by-step explanation:
42
42
42
The value of a should be 2000. Hope this helps.
Answer:
25.5 mi
Step-by-step explanation:
12 22.5 X
Let X be the shortest distance we are trying to find.
a units 2 b units 2 c units 2
12 units 2 + (22.5)=c units 2
144+506.25=c units 2
650.25=c units 2
=c units 2
25.5