| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
The dimensions of this cylinder are height (h) = 5 and radius (r) = 1. What is the volume?
| 5π | |
| 12π | |
| 150π | |
| 252π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(12 x 5)
v = 5π
What is the circumference of a circle with a radius of 7?
| 5π | |
| 15π | |
| 14π | |
| 32π |
The formula for circumference is circle diameter x π. Circle diameter is 2 x radius:
c = πd
c = π(2 * r)
c = π(2 * 7)
c = 14π
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Odd |
|
Inside |
|
Last |
|
First |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.
The dimensions of this cube are height (h) = 8, length (l) = 6, and width (w) = 2. What is the volume?
| 40 | |
| 96 | |
| 144 | |
| 64 |
The volume of a cube is height x length x width:
v = h x l x w
v = 8 x 6 x 2
v = 96
Solve -2c - 3c = -4c + 8y - 3 for c in terms of y.
| \(\frac{1}{3}\)y - 1 | |
| -5\(\frac{2}{3}\)y + 1\(\frac{1}{3}\) | |
| -3y + 4 | |
| 5\(\frac{1}{2}\)y - 1\(\frac{1}{2}\) |
To solve this equation, isolate the variable for which you are solving (c) on one side of the equation and put everything else on the other side.
-2c - 3y = -4c + 8y - 3
-2c = -4c + 8y - 3 + 3y
-2c + 4c = 8y - 3 + 3y
2c = 11y - 3
c = \( \frac{11y - 3}{2} \)
c = \( \frac{11y}{2} \) + \( \frac{-3}{2} \)
c = 5\(\frac{1}{2}\)y - 1\(\frac{1}{2}\)