| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
Solve for z:
-z - 2 > -6 - 3z
| z > -\(\frac{5}{6}\) | |
| z > -2 | |
| z > -4 | |
| z > -\(\frac{4}{7}\) |
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.
-z - 2 > -6 - 3z
-z > -6 - 3z + 2
-z + 3z > -6 + 2
2z > -4
z > \( \frac{-4}{2} \)
z > -2
The dimensions of this cube are height (h) = 9, length (l) = 6, and width (w) = 1. What is the volume?
| 18 | |
| 210 | |
| 120 | |
| 54 |
The volume of a cube is height x length x width:
v = h x l x w
v = 9 x 6 x 1
v = 54
Order the following types of angle from least number of degrees to most number of degrees.
right, obtuse, acute |
|
acute, obtuse, right |
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right, acute, obtuse |
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acute, right, obtuse |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
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.)
The formula for the area of a circle is which of the following?
c = π r2 |
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c = π r |
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c = π d |
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c = π d2 |
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.