| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.21 |
| Score | 0% | 64% |
Which of the following expressions contains exactly two terms?
binomial |
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quadratic |
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monomial |
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polynomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
A(n) __________ is two expressions separated by an equal sign.
equation |
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formula |
|
expression |
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problem |
An equation is two expressions separated by an equal sign. The key to solving equations is to repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.
The dimensions of this cylinder are height (h) = 2 and radius (r) = 2. What is the volume?
| 8π | |
| 28π | |
| 196π | |
| 96π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(22 x 2)
v = 8π
The dimensions of this cube are height (h) = 8, length (l) = 9, and width (w) = 8. What is the surface area?
| 416 | |
| 136 | |
| 62 | |
| 318 |
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 9 x 8) + (2 x 8 x 8) + (2 x 9 x 8)
sa = (144) + (128) + (144)
sa = 416
The endpoints of this line segment are at (-2, -6) and (2, 2). What is the slope of this line?
| 1 | |
| 3 | |
| -2 | |
| 2 |
The slope of this line is the change in y divided by the change in x. The endpoints of this line segment are at (-2, -6) and (2, 2) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(2.0) - (-6.0)}{(2) - (-2)} \) = \( \frac{8}{4} \)