| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
If a = c = 6, b = d = 7, and the blue angle = 73°, what is the area of this parallelogram?
| 42 | |
| 27 | |
| 24 | |
| 18 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 6 x 7
a = 42
If the length of AB equals the length of BD, point B __________ this line segment.
intersects |
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trisects |
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midpoints |
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bisects |
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 7a x 4b.
| 11ab | |
| 28ab | |
| 28a2b2 | |
| 28\( \frac{a}{b} \) |
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.
7a x 4b = (7 x 4) (a x b) = 28ab
Solve for y:
4y - 9 < \( \frac{y}{4} \)
| y < \(\frac{16}{31}\) | |
| y < 2\(\frac{2}{5}\) | |
| y < 1\(\frac{17}{37}\) | |
| y < -\(\frac{18}{55}\) |
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.
4y - 9 < \( \frac{y}{4} \)
4 x (4y - 9) < y
(4 x 4y) + (4 x -9) < y
16y - 36 < y
16y - 36 - y < 0
16y - y < 36
15y < 36
y < \( \frac{36}{15} \)
y < 2\(\frac{2}{5}\)
The formula for the area of a circle is which of the following?
a = π r2 |
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a = π d |
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a = π d2 |
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a = π r |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.