| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.34 |
| Score | 0% | 67% |
The dimensions of this cube are height (h) = 6, length (l) = 2, and width (w) = 7. What is the volume?
| 15 | |
| 225 | |
| 270 | |
| 84 |
The volume of a cube is height x length x width:
v = h x l x w
v = 6 x 2 x 7
v = 84
The dimensions of this cylinder are height (h) = 9 and radius (r) = 4. What is the surface area?
| 96π | |
| 104π | |
| 270π | |
| 120π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(42) + 2π(4 x 9)
sa = 2π(16) + 2π(36)
sa = (2 x 16)π + (2 x 36)π
sa = 32π + 72π
sa = 104π
Solve for y:
-6y - 4 > -5 + 8y
| y > \(\frac{7}{9}\) | |
| y > -1 | |
| y > \(\frac{1}{14}\) | |
| y > -3 |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the > sign and the answer on the other.
-6y - 4 > -5 + 8y
-6y > -5 + 8y + 4
-6y - 8y > -5 + 4
-14y > -1
y > \( \frac{-1}{-14} \)
y > \(\frac{1}{14}\)
If a = c = 3, b = d = 4, what is the area of this rectangle?
| 12 | |
| 72 | |
| 5 | |
| 14 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 3 x 4
a = 12
What is the area of a circle with a radius of 2?
| 6π | |
| 8π | |
| 2π | |
| 4π |
The formula for area is πr2:
a = πr2
a = π(22)
a = 4π