Add, first finding the LCD. Simplify, if possible.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: D
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Find the requested value of the variable.y varies directly as z2. If y = 648 when z = 9, find y when z = 5.
A. y = 45 B. y = 200 C. y = 72 D. y = 360
AV = 60 db and VO = 130 V. Find Vin.
a. 13 mV b. 40 mV c. 65 mV d. 130 mV e. 600 mV
Use this graph to answer the question.
MonthWhat was the total increase in sales from 2009 to 2010?
A. $12,000 B. $182,000 C. $1,342,000 D. $22,000
Solve the problem. First use front end rounding. Then find the exact answer.A particular model of side-loading washing machine costs $180 more than a top-loading machine. If the top-loading machine costs $253, find the cost of the side-loading machine.
A. Estimate: $430; exact: $433 B. Estimate: $500; exact: $433 C. Estimate: $70; exact: $73 D. Estimate: $100; exact: $73