| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.87 |
| Score | 0% | 77% |
Order the following types of angle from least number of degrees to most number of degrees.
acute, obtuse, right |
|
acute, right, obtuse |
|
right, acute, obtuse |
|
right, obtuse, acute |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
If a = 4, b = 7, c = 2, and d = 8, what is the perimeter of this quadrilateral?
| 26 | |
| 21 | |
| 15 | |
| 18 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 4 + 7 + 2 + 8
p = 21
Simplify (y + 8)(y - 4)
| y2 + 12y + 32 | |
| y2 - 12y + 32 | |
| y2 - 4y - 32 | |
| y2 + 4y - 32 |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses:
(y + 8)(y - 4)
(y x y) + (y x -4) + (8 x y) + (8 x -4)
y2 - 4y + 8y - 32
y2 + 4y - 32
Which of the following expressions contains exactly two terms?
quadratic |
|
monomial |
|
polynomial |
|
binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
If a = c = 2, b = d = 9, what is the area of this rectangle?
| 14 | |
| 48 | |
| 18 | |
| 9 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 2 x 9
a = 18