| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.42 |
| Score | 0% | 68% |
If the base of this triangle is 3 and the height is 9, what is the area?
| 13\(\frac{1}{2}\) | |
| 55 | |
| 17\(\frac{1}{2}\) | |
| 24 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 3 x 9 = \( \frac{27}{2} \) = 13\(\frac{1}{2}\)
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
pairs |
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addition |
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exponents |
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division |
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 the length of AB equals the length of BD, point B __________ this line segment.
trisects |
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intersects |
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bisects |
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midpoints |
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.
Simplify 3a x 5b.
| 15ab | |
| 15\( \frac{b}{a} \) | |
| 15a2b2 | |
| 15\( \frac{a}{b} \) |
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.
3a x 5b = (3 x 5) (a x b) = 15ab
Which of the following is not true about both rectangles and squares?
the perimeter is the sum of the lengths of all four sides |
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the lengths of all sides are equal |
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the area is length x width |
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all interior angles are right angles |
A rectangle is a parallelogram containing four right angles. Opposite sides (a = c, b = d) are equal and the perimeter is the sum of the lengths of all sides (a + b + c + d) or, comonly, 2 x length x width. The area of a rectangle is length x width. A square is a rectangle with four equal length sides. The perimeter of a square is 4 x length of one side (4s) and the area is the length of one side squared (s2).