| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 4.05 |
| Score | 0% | 81% |
If side x = 13cm, side y = 9cm, and side z = 11cm what is the perimeter of this triangle?
| 33cm | |
| 28cm | |
| 27cm | |
| 37cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 13cm + 9cm + 11cm = 33cm
What is 4a - 5a?
| 9 | |
| -1a | |
| 20a2 | |
| 9a2 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
4a - 5a = -1a
The dimensions of this cylinder are height (h) = 4 and radius (r) = 9. What is the volume?
| 64π | |
| 324π | |
| 7π | |
| 32π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(92 x 4)
v = 324π
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
exponents |
|
division |
|
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.)
Which of the following expressions contains exactly two terms?
quadratic |
|
binomial |
|
monomial |
|
polynomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.