| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
If side x = 12cm, side y = 9cm, and side z = 6cm what is the perimeter of this triangle?
| 29cm | |
| 25cm | |
| 36cm | |
| 27cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 12cm + 9cm + 6cm = 27cm
Which of the following expressions contains exactly two terms?
quadratic |
|
monomial |
|
polynomial |
|
binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
|
quadrilateral |
|
triangle |
|
trapezoid |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
If a = 7, b = 2, c = 1, and d = 1, what is the perimeter of this quadrilateral?
| 11 | |
| 21 | |
| 15 | |
| 31 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 7 + 2 + 1 + 1
p = 11
Solve 2b - 3b = b + 9x - 4 for b in terms of x.
| 12x - 4 | |
| 2x - 5 | |
| x - \(\frac{7}{12}\) | |
| -\(\frac{2}{11}\)x - \(\frac{5}{11}\) |
To solve this equation, isolate the variable for which you are solving (b) on one side of the equation and put everything else on the other side.
2b - 3x = b + 9x - 4
2b = b + 9x - 4 + 3x
2b - b = 9x - 4 + 3x
b = 12x - 4