Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Round the numbers so that there is only one non-zero digit, and estimate the answer. Then perform the indicated operation to find the exact answer.91.5 - 9.25
A. estimate: 91; exact: 92.38 B. estimate: 81; exact: 82.25 C. estimate: 91; exact: 91.28 D. estimate: 81; exact: 82.35
Mathematics
Perform the indicated operation. Simplify if possible.
- 5x
A. 
B. 
C. 
D. 
Mathematics
Graph the equation.y = 3x - 4
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.How many different license plates can be made using 3 letters followed by 4 digits selected from the digits 0 through 9, if neither letters nor digits may be repeated?
A. 78,624,000 B. 546,000 C. 47,174,400 D. 175,760,000
Mathematics