| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.18 |
| Score | 0% | 64% |
If the base of this triangle is 7 and the height is 6, what is the area?
| 22\(\frac{1}{2}\) | |
| 71\(\frac{1}{2}\) | |
| 38\(\frac{1}{2}\) | |
| 21 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 7 x 6 = \( \frac{42}{2} \) = 21
Simplify (4a)(5ab) + (9a2)(8b).
| 52ab2 | |
| 153a2b | |
| 92a2b | |
| -52ab2 |
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.
(4a)(5ab) + (9a2)(8b)
(4 x 5)(a x a x b) + (9 x 8)(a2 x b)
(20)(a1+1 x b) + (72)(a2b)
20a2b + 72a2b
92a2b
A coordinate grid is composed of which of the following?
y-axis |
|
x-axis |
|
all of these |
|
origin |
The coordinate grid is composed of a horizontal x-axis and a vertical y-axis. The center of the grid, where the x-axis and y-axis meet, is called the origin.
Which types of triangles will always have at least two sides of equal length?
equilateral and right |
|
equilateral, isosceles and right |
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equilateral and isosceles |
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isosceles and right |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
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trapezoid |
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triangle |
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quadrilateral |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.