Use counting rules to determine the probability.Determine the probability that in a class of 35 students, at least two students have the same birthday. Assume that there are always 365 days in a year and that birth rates are constant throughout the year. (Hint: First determine the probability that no two students have the same birthday and then apply the complementation rule.)
A. 0.814
B. 0.894
C. 0.854
D. 0.186
Answer: A
Mathematics
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Use absolute value notation to describe the situation. t is more than five units from -8.
A. |t? + 8|> 5 B. |t? + 8| ? 5 C. |t? + 8| < 5 D. |t? - 8| > 5 E. |t? - 8| ? 5
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Solve.What is 4,000% of 115?
A. 460 B. 460,000 C. 46,000 D. 4,600
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Solve the systems of equtions using the addition method. 
A. {(0, -2)} B. no solution; ? C. {(1, -3)} D. {(-1, -2)}
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Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.
A. 18
B. 7
C. 49
D. 7
Mathematics