| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
If AD = 25 and BD = 20, AB = ?
| 5 | |
| 3 | |
| 2 | |
| 11 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDWhat is the circumference of a circle with a diameter of 16?
| 8π | |
| 11π | |
| 16π | |
| 19π |
The formula for circumference is circle diameter x π:
c = πd
c = 16π
If side x = 10cm, side y = 12cm, and side z = 11cm what is the perimeter of this triangle?
| 34cm | |
| 40cm | |
| 21cm | |
| 33cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 10cm + 12cm + 11cm = 33cm
If a = c = 2, b = d = 3, and the blue angle = 56°, what is the area of this parallelogram?
| 6 | |
| 8 | |
| 16 | |
| 20 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 2 x 3
a = 6
Which of the following is not required to define the slope-intercept equation for a line?
\({\Delta y \over \Delta x}\) |
|
x-intercept |
|
y-intercept |
|
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.