Find the value of the determinant.
A. 3
B. 11
C. -11
D. 29
Answer: B
Mathematics
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Solve the problem.At age 50, Ann must choose between taking $18,000 at age 60 if she is alive then, or $30,000 at age 70 if she is alive then. The probability for a person aged 50 living to be 60 and 70 is 0.81 and 0.61, respectively. Using expected value, what is Ann's best option?
A. $30,000 at age 70 B. $18,000 at age 60
Mathematics
Find the indicated term of the sequence.If the second term of an arithmetic progression is -17 and the fourth term is -13, find the fifteenth term.
A. 2 B. 11 C. -19 D. 9
Mathematics
Perform the operations indicated.-1 + 7
A. 6 B. -6 C. -8 D. 8
Mathematics
Simplify the expression.25-1/2
A. -5
B. 5
C. 
D. - 
Mathematics