State the period of the function and graph. sin 
A. Period 6
B. Period 6
C. Period 6
D. Period 6
Answer: B
Mathematics
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If an average five-year-old owns at least five and at most twenty-five toys, how many five-year-olds must be in a group to be certain that at least two have the same number of toys?
A. 22 five-year-olds B. 21 five-year-olds C. 20 five-year-olds D. 23 five-year-olds
Mathematics
Determine if the equation is an identity.cos(A + B) - cos(A - B) = - 2 sin A sin B
A. Yes B. No
Mathematics
Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will decrease according to the formula B(x) = 0.51x. How much will today's dollar be worth in 7 years? Round the answer to the nearest cent.
A. $0.62 B. $2.70 C. $3.57 D. $0.01
Mathematics
Subtract.
A. 725 B. 625 C. 1213 D. 717
Mathematics