| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.32 |
| Score | 0% | 66% |
The dimensions of this cylinder are height (h) = 4 and radius (r) = 9. What is the volume?
| 27π | |
| 324π | |
| 98π | |
| 20π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(92 x 4)
v = 324π
A quadrilateral is a shape with __________ sides.
2 |
|
4 |
|
5 |
|
3 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
A(n) __________ is to a parallelogram as a square is to a rectangle.
trapezoid |
|
triangle |
|
rhombus |
|
quadrilateral |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
On this circle, line segment AB is the:
radius |
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chord |
|
circumference |
|
diameter |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
Simplify (8a)(5ab) - (7a2)(6b).
| 169a2b | |
| 169ab2 | |
| 82ab2 | |
| -2a2b |
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)(5ab) - (7a2)(6b)
(8 x 5)(a x a x b) - (7 x 6)(a2 x b)
(40)(a1+1 x b) - (42)(a2b)
40a2b - 42a2b
-2a2b