Use Cramer's rule to solve the system. 3x - 2y + 2z - w = 2 4x + y + z + 6w = 8-3x + 2y - 2z + w = 5 5x + 3z - 2w = 1
A. 
B. 
C. 
D. Can't use Cramer's rule, D = 0
Answer: D
Mathematics
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Evaluate the improper integral.
A. 
B. 
C. 
D. 
Mathematics
Solve.Lorrie bought 
lb of basil and 
lb of oregano. How many pounds of herbs did she buy in total?
A. 
lb
B. 
lb
C. 
lb
D. 
lb
Mathematics
Graph the function defined by 
.
?
A. ?
B. ?
C. ?
D. ?
Mathematics
Solve the right triangle using the information given. Round answers to two decimal places, if necessary. 
a = 7, b = 4; Find c, A, and B.
A. c = 8.06 A = 60.26° B = 29.74° B. c = 8.06 A = 61.26° B = 28.74° C. c = 5.74 A = 61.26° B = 28.74° D. c = 5.74 A = 60.26° B = 29.74°
Mathematics