| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.66 |
| Score | 0% | 73% |
What is 6a2 - 6a2?
| 36a4 | |
| 0a2 | |
| 36a2 | |
| a24 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
6a2 - 6a2 = 0a2
If the base of this triangle is 5 and the height is 2, what is the area?
| 5 | |
| 42 | |
| 44 | |
| 37\(\frac{1}{2}\) |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 5 x 2 = \( \frac{10}{2} \) = 5
If a = c = 7, b = d = 9, what is the area of this rectangle?
| 24 | |
| 14 | |
| 18 | |
| 63 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 7 x 9
a = 63
A right angle measures:
90° |
|
360° |
|
180° |
|
45° |
A right angle measures 90 degrees and is the intersection of two perpendicular lines. In diagrams, a right angle is indicated by a small box completing a square with the perpendicular lines.
The dimensions of this cylinder are height (h) = 9 and radius (r) = 4. What is the volume?
| 4π | |
| 175π | |
| 49π | |
| 144π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(42 x 9)
v = 144π