| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.22 |
| Score | 0% | 64% |
The dimensions of this cube are height (h) = 3, length (l) = 9, and width (w) = 7. What is the volume?
| 36 | |
| 189 | |
| 441 | |
| 70 |
The volume of a cube is height x length x width:
v = h x l x w
v = 3 x 9 x 7
v = 189
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
addition |
|
exponents |
|
pairs |
|
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.)
Which types of triangles will always have at least two sides of equal length?
equilateral and isosceles |
|
isosceles and right |
|
equilateral and right |
|
equilateral, isosceles and right |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.
Solve for x:
4x + 5 < \( \frac{x}{4} \)
| x < 2\(\frac{4}{19}\) | |
| x < -\(\frac{2}{17}\) | |
| x < -1\(\frac{1}{3}\) | |
| x < 2\(\frac{2}{9}\) |
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.
4x + 5 < \( \frac{x}{4} \)
4 x (4x + 5) < x
(4 x 4x) + (4 x 5) < x
16x + 20 < x
16x + 20 - x < 0
16x - x < -20
15x < -20
x < \( \frac{-20}{15} \)
x < -1\(\frac{1}{3}\)
The dimensions of this trapezoid are a = 4, b = 6, c = 6, d = 8, and h = 3. What is the area?
| 26 | |
| 21 | |
| 28 | |
| 15 |
The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:
a = ½(b + d)(h)
a = ½(6 + 8)(3)
a = ½(14)(3)
a = ½(42) = \( \frac{42}{2} \)
a = 21