Write the decimal point in the correct location. 49.808 ÷ 0.8 = 6226
A. 622.6
B. 6.226
C. 6226.0
D. 62.26
Answer: D
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Translate the expression into the language of algebra. Use the variable x to represent the number.Nine times a number
A. 1 + 9x B. 9 - x C. x + 9 D. 9x
Solve.The current i in an electric circuit is 
8 cos ?t. Write the first three terms of the Taylor series of this function about 
A. 8 cos 
- 8? sin 
- 4?2 cos 
2 + . . .
B. 8 cos 
- 8? sin 
+ 8?2cos 
2 + . . .
C. 8 cos 
+ 8?t sin 
+ 4?2t2 cos 
+ . . .
D. 8 cos 
- 8 sin 
- 4 cos 
2 + . . .
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
[5ln (x + 3) - ln x - ln (x2 - 1)]
A. ln 
B. ln 
C. ln 
D. ln 
Solve the problem. Assume that probabilities are representative of the best strategies. Round to two decimal places, if necessary.A company has three products that fluctuate in favorability. The payoff matrix for the expected profit in tens of thousands of dollars is given below. What is the expected value of the profit? 
A. 36 B. 8.44 C. 40 D. 12.54