| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
The dimensions of this cylinder are height (h) = 3 and radius (r) = 8. What is the volume?
| 8π | |
| 192π | |
| 256π | |
| 27π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(82 x 3)
v = 192π
If c = -1 and y = 2, what is the value of -7c(c - y)?
| -60 | |
| -21 | |
| 1080 | |
| -120 |
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.)
-7c(c - y)
-7(-1)(-1 - 2)
-7(-1)(-3)
(7)(-3)
-21
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
|
quadrilateral |
|
trapezoid |
|
triangle |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
If side a = 7, side b = 4, what is the length of the hypotenuse of this right triangle?
| \( \sqrt{97} \) | |
| \( \sqrt{65} \) | |
| \( \sqrt{90} \) | |
| \( \sqrt{50} \) |
According to the Pythagorean theorem, the hypotenuse squared is equal to the sum of the two perpendicular sides squared:
c2 = a2 + b2
c2 = 72 + 42
c2 = 49 + 16
c2 = 65
c = \( \sqrt{65} \)
Which of the following expressions contains exactly two terms?
quadratic |
|
polynomial |
|
monomial |
|
binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.