Write the expression as one logarithm.log7 13 + log7 6
A. log7 78
B. log14 78
C. log7 19
D. log14 19
Answer: A
Mathematics
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Simplify. Include the absolute value symbol if necessary. If the answer is not a real number, state so.
A. -4 B. -2 C. not a real number D. 4
Mathematics
Change 0.25% to a decimal equivalent and a reduced fraction.
A. 0.025; 
B. 0.0025; 
C. 0.25; 
D. 0.000025; 
Mathematics
Solve the problem.The chorus has six sopranos and eight baritones. In how many ways can the director choose a quartet that contains at least one soprano?
A. 1071 B. 931 C. 986 D. 1001
Mathematics
Simplify by combining like terms.6x2 + 3xy - 9x2 + 12 + 2xy
A. -3x2 + 5xy + 12 B. -3x2 - 5xy + 12 C. 5x2 + 5xy - 12 D. 5x2 + 5xy + 12
Mathematics