Simplify.2.5x - 3.2 - 1.3x - 9.5
A. 1.2x + 6.3
B. 3.8x - 30.4
C. 1.2x - 12.7
D. -11.5x
Answer: C
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Determine the value of the indicated function in the given manner.Find tan 90° by using the functions of 45°.
A. 0 B. 1 C. - 1 D. undefined
Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5
Solve.Last year, Maria earned $306 per week. This year, her salary increased to 
per week. What is the percent of increase?
A.
| 91.5% |
B. 8.5%
C.
| 92.2% |
D.
| 7.8% |
Solve the application problem. Round to the nearest cent.
Green Thumb Landscaping wants to build a $135,000 greenhouse in 2 years. The company sets up a sinking fund with payments made quarterly. Find the payment into this fund if the money earns 8% compounded quarterly.
A. $66,831.75 B. $18,158.85 C. $12,691.35 D. $15,728.85