| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.38 |
| Score | 0% | 68% |
Solve for b:
2b - 2 > \( \frac{b}{1} \)
| b > 1\(\frac{19}{29}\) | |
| b > \(\frac{8}{25}\) | |
| b > 2 | |
| b > -1\(\frac{5}{16}\) |
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.
2b - 2 > \( \frac{b}{1} \)
1 x (2b - 2) > b
(1 x 2b) + (1 x -2) > b
2b - 2 > b
2b - 2 - b > 0
2b - b > 2
b > 2
b > \( \frac{2}{1} \)
b > 2
The dimensions of this cube are height (h) = 6, length (l) = 7, and width (w) = 9. What is the volume?
| 48 | |
| 168 | |
| 140 | |
| 378 |
The volume of a cube is height x length x width:
v = h x l x w
v = 6 x 7 x 9
v = 378
What is the circumference of a circle with a diameter of 12?
| 14π | |
| 8π | |
| 16π | |
| 12π |
The formula for circumference is circle diameter x π:
c = πd
c = 12π
If a = c = 3, b = d = 4, and the blue angle = 56°, what is the area of this parallelogram?
| 32 | |
| 28 | |
| 64 | |
| 12 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 3 x 4
a = 12
What is 9a4 + 6a4?
| 3a8 | |
| 54a4 | |
| 15a4 | |
| 15 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
9a4 + 6a4 = 15a4