| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.62 |
| Score | 0% | 72% |
Breaking apart a quadratic expression into a pair of binomials is called:
factoring |
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normalizing |
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deconstructing |
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squaring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
What is 7a3 + 5a3?
| 12a6 | |
| 12 | |
| a36 | |
| 12a3 |
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.
7a3 + 5a3 = 12a3
Order the following types of angle from least number of degrees to most number of degrees.
right, acute, obtuse |
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right, obtuse, acute |
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acute, right, obtuse |
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acute, obtuse, right |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
The dimensions of this cube are height (h) = 9, length (l) = 1, and width (w) = 8. What is the surface area?
| 254 | |
| 82 | |
| 178 | |
| 236 |
The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):
sa = 2lw + 2wh + 2lh
sa = (2 x 1 x 8) + (2 x 8 x 9) + (2 x 1 x 9)
sa = (16) + (144) + (18)
sa = 178
If side x = 14cm, side y = 9cm, and side z = 8cm what is the perimeter of this triangle?
| 32cm | |
| 29cm | |
| 24cm | |
| 31cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 14cm + 9cm + 8cm = 31cm