| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
Which of the following expressions contains exactly two terms?
polynomial |
|
monomial |
|
binomial |
|
quadratic |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
The dimensions of this trapezoid are a = 5, b = 7, c = 8, d = 3, and h = 4. What is the area?
| 10 | |
| 20 | |
| 12 | |
| 34 |
The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:
a = ½(b + d)(h)
a = ½(7 + 3)(4)
a = ½(10)(4)
a = ½(40) = \( \frac{40}{2} \)
a = 20
Find the value of b:
-2b + z = -8
-b - 6z = -4
| -1\(\frac{3}{26}\) | |
| 4 | |
| -\(\frac{48}{59}\) | |
| \(\frac{7}{23}\) |
You need to find the value of b so solve the first equation in terms of z:
-2b + z = -8
z = -8 + 2b
then substitute the result (-8 - -2b) into the second equation:
-b - 6(-8 + 2b) = -4
-b + (-6 x -8) + (-6 x 2b) = -4
-b + 48 - 12b = -4
-b - 12b = -4 - 48
-13b = -52
b = \( \frac{-52}{-13} \)
b = 4
If the length of AB equals the length of BD, point B __________ this line segment.
midpoints |
|
trisects |
|
intersects |
|
bisects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.
A quadrilateral is a shape with __________ sides.
3 |
|
2 |
|
4 |
|
5 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.