Find the exact value of the expression.cot-1
A. - 
B. - 
C. 
D. 
Answer: D
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Solve the problem.If a person puts one penny in a piggy bank on the first day, two pennies in on the second day, three pennies in on the third day, and so forth, how much money will be in the bank after 60 days?
A. $18.30 B. $9.15 C. $36.60 D. $0.60
Simplify.
- 
A. 
B. 
C. 
D. 
Solve the problem.Find a matrix A and a column matrix B that describe the following tables involving credits and tuition costs. Find the matrix product AB and interpret the significance of the entries of this product.
A.
AB = 
Tuition for Student 2 is $1101 and tuition for Student 1 is $822.
B.
AB = 
Tuition for Student 2 is $1095 and tuition for Student 1 is $809.
C.
AB = 
Tuition for Student 1 is $1095 and tuition for Student 2 is $809.
D.
AB = 
Tuition for Student 1 is $1101 and tuition for Student 2 is $822.
Find the logarithm. Give an approximation to four decimal places.log(2.77 × 102)
A. -1.5575 B. 0.4425 C. 2.4425 D. 2.0119