| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.05 |
| Score | 0% | 61% |
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
division |
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pairs |
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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.)
If a = c = 8, b = d = 2, and the blue angle = 76°, what is the area of this parallelogram?
| 49 | |
| 16 | |
| 30 | |
| 36 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 8 x 2
a = 16
The dimensions of this cube are height (h) = 7, length (l) = 3, and width (w) = 7. What is the surface area?
| 22 | |
| 192 | |
| 182 | |
| 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 3 x 7) + (2 x 7 x 7) + (2 x 3 x 7)
sa = (42) + (98) + (42)
sa = 182
The dimensions of this cylinder are height (h) = 2 and radius (r) = 7. What is the surface area?
| 140π | |
| 126π | |
| 40π | |
| 120π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(72) + 2π(7 x 2)
sa = 2π(49) + 2π(14)
sa = (2 x 49)π + (2 x 14)π
sa = 98π + 28π
sa = 126π
If the length of AB equals the length of BD, point B __________ this line segment.
trisects |
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midpoints |
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bisects |
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intersects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.