| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
The dimensions of this cube are height (h) = 2, length (l) = 8, and width (w) = 6. What is the volume?
| 320 | |
| 96 | |
| 18 | |
| 54 |
The volume of a cube is height x length x width:
v = h x l x w
v = 2 x 8 x 6
v = 96
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
pairs |
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division |
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addition |
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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.)
Solve for b:
-9b - 5 < 7 - 6b
| b < -4 | |
| b < 3 | |
| b < 1\(\frac{1}{3}\) | |
| b < -\(\frac{2}{9}\) |
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.
-9b - 5 < 7 - 6b
-9b < 7 - 6b + 5
-9b + 6b < 7 + 5
-3b < 12
b < \( \frac{12}{-3} \)
b < -4
On this circle, line segment AB is the:
chord |
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circumference |
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diameter |
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radius |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
Simplify (4a)(9ab) - (7a2)(5b).
| 156a2b | |
| 1a2b | |
| a2b | |
| 156ab2 |
To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.
(4a)(9ab) - (7a2)(5b)
(4 x 9)(a x a x b) - (7 x 5)(a2 x b)
(36)(a1+1 x b) - (35)(a2b)
36a2b - 35a2b
1a2b