| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.81 |
| Score | 0% | 56% |
The dimensions of this cylinder are height (h) = 2 and radius (r) = 3. What is the volume?
| 180π | |
| 18π | |
| 175π | |
| 200π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(32 x 2)
v = 18π
The formula for the area of a circle is which of the following?
a = π r2 |
|
a = π r |
|
a = π d2 |
|
a = π d |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.
Solve for c:
9c - 6 > \( \frac{c}{4} \)
| c > \(\frac{7}{9}\) | |
| c > \(\frac{24}{35}\) | |
| c > -\(\frac{1}{4}\) | |
| c > -2\(\frac{4}{5}\) |
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.
9c - 6 > \( \frac{c}{4} \)
4 x (9c - 6) > c
(4 x 9c) + (4 x -6) > c
36c - 24 > c
36c - 24 - c > 0
36c - c > 24
35c > 24
c > \( \frac{24}{35} \)
c > \(\frac{24}{35}\)
Solve for b:
6b + 9 = \( \frac{b}{5} \)
| -1\(\frac{16}{29}\) | |
| -1\(\frac{1}{2}\) | |
| \(\frac{12}{29}\) | |
| 1\(\frac{5}{11}\) |
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 equal sign and the answer on the other.
6b + 9 = \( \frac{b}{5} \)
5 x (6b + 9) = b
(5 x 6b) + (5 x 9) = b
30b + 45 = b
30b + 45 - b = 0
30b - b = -45
29b = -45
b = \( \frac{-45}{29} \)
b = -1\(\frac{16}{29}\)
A(n) __________ is to a parallelogram as a square is to a rectangle.
triangle |
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rhombus |
|
trapezoid |
|
quadrilateral |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.