| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.40 |
| Score | 0% | 68% |
Which types of triangles will always have at least two sides of equal length?
isosceles and right |
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equilateral and right |
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equilateral, isosceles and right |
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equilateral and isosceles |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.
The dimensions of this cube are height (h) = 4, length (l) = 6, and width (w) = 3. What is the surface area?
| 38 | |
| 146 | |
| 88 | |
| 108 |
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 6 x 3) + (2 x 3 x 4) + (2 x 6 x 4)
sa = (36) + (24) + (48)
sa = 108
Solve for z:
-8z - 9 > -3 + 8z
| z > \(\frac{1}{4}\) | |
| z > -\(\frac{3}{8}\) | |
| z > -3 | |
| z > -1\(\frac{1}{2}\) |
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.
-8z - 9 > -3 + 8z
-8z > -3 + 8z + 9
-8z - 8z > -3 + 9
-16z > 6
z > \( \frac{6}{-16} \)
z > -\(\frac{3}{8}\)
Which of the following expressions contains exactly two terms?
quadratic |
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binomial |
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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.
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
addition |
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pairs |
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division |
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exponents |
When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)