| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.81 |
| Score | 0% | 76% |
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
division |
|
exponents |
|
addition |
|
pairs |
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 dimensions of this cylinder are height (h) = 3 and radius (r) = 3. What is the volume?
| 72π | |
| 48π | |
| 324π | |
| 27π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(32 x 3)
v = 27π
The dimensions of this trapezoid are a = 4, b = 2, c = 6, d = 9, and h = 2. What is the area?
| 22 | |
| 21 | |
| 11 | |
| 32 |
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(2 + 9)(2)
a = ½(11)(2)
a = ½(22) = \( \frac{22}{2} \)
a = 11
If a = 4, b = 8, c = 6, and d = 7, what is the perimeter of this quadrilateral?
| 13 | |
| 25 | |
| 21 | |
| 27 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 4 + 8 + 6 + 7
p = 25
Simplify 3a x 4b.
| 12a2b2 | |
| 12\( \frac{a}{b} \) | |
| 12ab | |
| 7ab |
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 4b = (3 x 4) (a x b) = 12ab