Write a formula for the general term (the nth term) of the arithmetic sequence.-26, -31 , -36, -41, ...
A. an = - 5n - 26
B. an = - 5n - 21
C. an = 5n + 26
D. an = 5n + 21
Answer: B
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Solve the problem.The strength S of a wooden beam with rectangular cross section is given by the formula S = kd3 sin2 ? cos ?where d is the diagonal length, ? the angle illustrated, and k is a constant that varies with the type of wood used. 
Let d = 1 and express the strength S in terms of the constant k for ? = 45°, 50°, 55°, 
and 65°. Does the strength always increase as ? gets larger?
What will be an ideal response?
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 = 
The total tuition paid by all 3 students is $3838.
B.
AB = 
The total tuition paid by all 3 students is $3687.
C.
AB = 
Tuition for Student 1 is $1295, tuition for Student 2 is $1229, and tuition for Student 3 is $954.
D.
AB = 
Tuition for Student 1 is $1302, tuition for Student 2 is $1227, and tuition for Student 3 is $968.
Solve using Cramer's Rule.
A. (0, 3, 5) B. (5, 3, 0) C. (5, 0, 3) D. No solution