| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.95 |
| Score | 0% | 59% |
If the base of this triangle is 9 and the height is 3, what is the area?
| 45 | |
| 13\(\frac{1}{2}\) | |
| 52 | |
| 21 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 9 x 3 = \( \frac{27}{2} \) = 13\(\frac{1}{2}\)
Which of the following is not required to define the slope-intercept equation for a line?
\({\Delta y \over \Delta x}\) |
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y-intercept |
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x-intercept |
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slope |
A line on the coordinate grid can be defined by a slope-intercept equation: y = mx + b. For a given value of x, the value of y can be determined given the slope (m) and y-intercept (b) of the line. The slope of a line is change in y over change in x, \({\Delta y \over \Delta x}\), and the y-intercept is the y-coordinate where the line crosses the vertical y-axis.
On this circle, line segment AB is the:
circumference |
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radius |
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chord |
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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).
Solve for x:
-8x + 4 < -6 + 4x
| x < 1\(\frac{1}{2}\) | |
| x < 1\(\frac{2}{3}\) | |
| x < \(\frac{5}{6}\) | |
| x < -2\(\frac{1}{2}\) |
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.
-8x + 4 < -6 + 4x
-8x < -6 + 4x - 4
-8x - 4x < -6 - 4
-12x < -10
x < \( \frac{-10}{-12} \)
x < \(\frac{5}{6}\)
A trapezoid is a quadrilateral with one set of __________ sides.
equal angle |
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parallel |
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equal length |
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right angle |
A trapezoid is a quadrilateral with one set of parallel sides.