Answer:
≈ 588.06in^2
Step by step:
Formula for a cube= 6a^2
= 6x9.9^2
≈588.06in^2
Answer:
28.
Step-by-step explanation:
Area = 1/2 ( 6 + 8) * 4
= 7 * 4
= 28.
We have that

Let y be the first root, then y - 6 will be the second one. Since both roots make the quadratic equation equal to 0, we have that:

Solve for y:

Plug in y = 5/2 into original quadratic equation and solve for c:

So, the answer is
c = -35/4
Answer:

Step-by-step explanation:
Using quadratic formula

we will have two solutions.
2x^2 - x - 4 = 0
So, a=2 b=-1 c=-4, we have:

Finally, we have two solutions:

Answer:
Step-by-step explanation:
9x - 8 = 6x + 4
3x - 8 = 4
3x = 12
x = 4