| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.90 |
| Score | 0% | 78% |
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
lw x wh + lh |
|
h x l x w |
|
2lw x 2wh + 2lh |
|
h2 x l2 x w2 |
A cube is a rectangular solid box with a height (h), length (l), and width (w). The volume is h x l x w and the surface area is 2lw x 2wh + 2lh.
Simplify 8a x 7b.
| 56\( \frac{a}{b} \) | |
| 56ab | |
| 15ab | |
| 56a2b2 |
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.
8a x 7b = (8 x 7) (a x b) = 56ab
What is the area of a circle with a diameter of 10?
| 9π | |
| 8π | |
| 25π | |
| 3π |
The formula for area is πr2. Radius is circle \( \frac{diameter}{2} \):
r = \( \frac{d}{2} \)
r = \( \frac{10}{2} \)
r = 5
a = πr2
a = π(52)
a = 25π
Which of the following expressions contains exactly two terms?
polynomial |
|
binomial |
|
monomial |
|
quadratic |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
If a = 6, b = 3, c = 7, and d = 3, what is the perimeter of this quadrilateral?
| 19 | |
| 15 | |
| 17 | |
| 26 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 6 + 3 + 7 + 3
p = 19