Find the reciprocal, if it exists.
A. 1
B. - 
C. - 
D. 
Answer: D
Mathematics
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Multiply and simplify.
? 
A. 
B. 
C. 
D. 120xy
Mathematics
Change the fraction to a decimal. Round as indicated.1
two decimal places
A. 1.52 B. 0.76 C. 7.60 D. 0.30
Mathematics
Solve the problem.The cost, T, in hundreds of dollars, of tuition at one community college is given by 
where c is the number of credits for which a student registers. Graph the equation and use the graph to estimate the cost of tuition if a student registers for 9 credits.
A. $1900 B. $700 C. $1500 D. $1425
Mathematics
Solve the problem.A house has 10-foot ceilings. Three rooms are x feet by y feet and two rooms are y feet by z feet. Find the total volume of these rooms if x= 13, y= 19, and z = 25.
A. 16,910 ft3 B. 1840 ft3 C. 722 ft3 D. 7220 ft3
Mathematics