Evaluate the expression.
A. 4
B. 
C. 
D. 2880
Answer: A
Mathematics
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Determine how many of the first 5 statements in the sequence obtainable from the given statement are true.n2 - n + 17 is prime.
A. 3 B. 2 C. 4 D. 5
Mathematics
Solve the formula for the specified variable.a + b = s + r for r
A. r = a + b - s
B. r = s(a + b)
C. r = 
D. r = 
+ b
Mathematics
Use Cramer's Rule to solve (if possible) the system of equations.
?
?
A. (-6, 2) B. (6, -2) C. (6, 2) D. (2, -6) E. (-6, -2)
Mathematics
Solve the problem.A radioactive substance is observed to disintegrate at a rate such that 
of the original amount remains after one year. What is the half-life of the substance?
A. 0.556 yr B. 0.301 yr C. 6.579 yr D. 0.588 yr
Mathematics