Perform the indicated operation.10.4 - 3.49
A. 7.01
B. 6.91
C. 14.89
D. 13.89
Answer: B
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Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
-2
A. 
B. 
C. 
D. 
Determine whether y ? ? or y ? -? as x ? -? and x ? ?.y = -7x2 + 7x3 + 6x - 4
A. y ? -? as x ? -?; y ?- ? as x ? ? B. y ? -? as x ? -?; y ? ? as x ? ? C. y ? ? as x ? -?; y ? -? as x ? ? D. y ? ? as x ? -?; y ? ? as x ? ?
Determine whether a linear model might fit the data.
A. Yes B. No
Solve the problem.Tickets to a ballet cost $14 if bought in advance. If bought on the date of the ballet, they cost $24. For the ballet to make a profit, the total money collected from ticket sales must be at least $380. Write an inequality to represent this situation, using x for the number of tickets bought in advance and y for the number of tickets bought on the date of the ballet. Do not solve the inequality.
A. 14x + 24y ? 380 B. 14x - 24y ? 380 C. 14x - 24y ? 380 D. 14x + 24y ? 380