| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
If a = c = 2, b = d = 5, what is the area of this rectangle?
| 81 | |
| 15 | |
| 10 | |
| 6 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 2 x 5
a = 10
Solve for b:
-6b - 2 < 9 + 2b
| b < -\(\frac{1}{4}\) | |
| b < -\(\frac{3}{5}\) | |
| b < -1\(\frac{3}{8}\) | |
| b < -1 |
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.
-6b - 2 < 9 + 2b
-6b < 9 + 2b + 2
-6b - 2b < 9 + 2
-8b < 11
b < \( \frac{11}{-8} \)
b < -1\(\frac{3}{8}\)
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
h2 x l2 x w2 |
|
h x l x w |
|
lw x wh + lh |
|
2lw x 2wh + 2lh |
A cube is a rectangular solid box with a height (h), length (l), and width (w). The volume is h x l x w and the surface area is 2lw x 2wh + 2lh.
If BD = 6 and AD = 14, AB = ?
| 18 | |
| 17 | |
| 8 | |
| 5 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDThe dimensions of this cylinder are height (h) = 9 and radius (r) = 3. What is the volume?
| 294π | |
| 72π | |
| 81π | |
| 64π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(32 x 9)
v = 81π