| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.70 |
| Score | 0% | 74% |
If a = c = 8, b = d = 3, what is the area of this rectangle?
| 18 | |
| 45 | |
| 24 | |
| 9 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 8 x 3
a = 24
A quadrilateral is a shape with __________ sides.
4 |
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5 |
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2 |
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3 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
Solve for z:
-8z - 6 = 7 + z
| 1\(\frac{1}{6}\) | |
| -1\(\frac{4}{9}\) | |
| \(\frac{1}{7}\) | |
| 1\(\frac{1}{4}\) |
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 equal sign and the answer on the other.
-8z - 6 = 7 + z
-8z = 7 + z + 6
-8z - z = 7 + 6
-9z = 13
z = \( \frac{13}{-9} \)
z = -1\(\frac{4}{9}\)
A cylinder with a radius (r) and a height (h) has a surface area of:
π r2h |
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2(π r2) + 2π rh |
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π r2h2 |
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4π r2 |
A cylinder is a solid figure with straight parallel sides and a circular or oval cross section with a radius (r) and a height (h). The volume of a cylinder is π r2h and the surface area is 2(π r2) + 2π rh.
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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exponents |
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addition |
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.)