| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.31 |
| Score | 0% | 66% |
If a = c = 6, b = d = 7, what is the area of this rectangle?
| 42 | |
| 9 | |
| 14 | |
| 21 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 6 x 7
a = 42
Solve for b:
-8b - 8 > \( \frac{b}{7} \)
| b > \(\frac{24}{31}\) | |
| b > -\(\frac{56}{57}\) | |
| b > 1 | |
| b > 1\(\frac{1}{4}\) |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the > sign and the answer on the other.
-8b - 8 > \( \frac{b}{7} \)
7 x (-8b - 8) > b
(7 x -8b) + (7 x -8) > b
-56b - 56 > b
-56b - 56 - b > 0
-56b - b > 56
-57b > 56
b > \( \frac{56}{-57} \)
b > -\(\frac{56}{57}\)
Which of the following expressions contains exactly two terms?
polynomial |
|
quadratic |
|
monomial |
|
binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
A cylinder with a radius (r) and a height (h) has a surface area of:
π r2h2 |
|
2(π r2) + 2π rh |
|
π r2h |
|
4π r2 |
A cylinder is a solid figure with straight parallel sides and a circular or oval cross section with a radius (r) and a height (h). The volume of a cylinder is π r2h and the surface area is 2(π r2) + 2π rh.
If a = -1 and y = 1, what is the value of 5a(a - y)?
| 40 | |
| 132 | |
| -108 | |
| 10 |
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.)
5a(a - y)
5(-1)(-1 - 1)
5(-1)(-2)
(-5)(-2)
10