| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
The dimensions of this cube are height (h) = 8, length (l) = 5, and width (w) = 3. What is the surface area?
| 46 | |
| 280 | |
| 158 | |
| 22 |
The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):
sa = 2lw + 2wh + 2lh
sa = (2 x 5 x 3) + (2 x 3 x 8) + (2 x 5 x 8)
sa = (30) + (48) + (80)
sa = 158
The dimensions of this trapezoid are a = 4, b = 3, c = 7, d = 6, and h = 2. What is the area?
| 19\(\frac{1}{2}\) | |
| 9 | |
| 16\(\frac{1}{2}\) | |
| 25 |
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(3 + 6)(2)
a = ½(9)(2)
a = ½(18) = \( \frac{18}{2} \)
a = 9
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Inside |
|
Odd |
|
First |
|
Last |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.
If c = 7 and x = 6, what is the value of -7c(c - x)?
| -49 | |
| -36 | |
| 132 | |
| 24 |
To solve this equation, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
-7c(c - x)
-7(7)(7 - 6)
-7(7)(1)
(-49)(1)
-49
What is the circumference of a circle with a diameter of 5?
| 6π | |
| 12π | |
| 5π | |
| 34π |
The formula for circumference is circle diameter x π:
c = πd
c = 5π