| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 4.01 |
| Score | 0% | 80% |
A right angle measures:
360° |
|
90° |
|
45° |
|
180° |
A right angle measures 90 degrees and is the intersection of two perpendicular lines. In diagrams, a right angle is indicated by a small box completing a square with the perpendicular lines.
If angle a = 57° and angle b = 45° what is the length of angle c?
| 78° | |
| 115° | |
| 92° | |
| 112° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 57° - 45° = 78°
Which of the following expressions contains exactly two terms?
binomial |
|
quadratic |
|
monomial |
|
polynomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
If c = -1 and y = -4, what is the value of 5c(c - y)?
| -1053 | |
| 75 | |
| -15 | |
| -294 |
To solve this equation, 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.)
5c(c - y)
5(-1)(-1 + 4)
5(-1)(3)
(-5)(3)
-15
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
division |
|
addition |
|
exponents |
|
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.)