Evaluate the expression for x = -2, y = 3, z = -4.-5z2
A. -80
B. 40
C. 400
D. 80
Answer: A
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Solve the problem.The perimeter of a rectangle is 16 cm. The length is 4 cm longer than the width. What are the length and width of the rectangle?
A. Length: 7 cm; width: 3 cm B. Length: 6 cm; width: 2 cm C. Length: 8 cm; width: 4 cm D. Length: 4 cm; width: 2 cm
Use the sum-of-the-years'-digits method of depreciation. Round to the nearest dollar.Find the book value at the end of the second year for an air filtration system which cost $7800, has a life of 5 years, and an estimated scrap value of $780.
A. $4992 B. $3120 C. $4212 D. $3588
Round the following to the nearest ten, nearest hundred, and nearest thousand.4274
A.
| Ten | 4280 |
| Hundred | 4200 |
| Thousand | 5000 |
B.
| Ten | 4280 |
| Hundred | 4300 |
| Thousand | 4000 |
C.
| Ten | 4270 |
| Hundred | 4300 |
| Thousand | 4000 |
D.
| Ten | 4270 |
| Hundred | 4200 |
| Thousand | 4000 |
Simplify the expression. Assume all variables represent positive real numbers.
A. 5
B. 13
C. 5
D. 25