Solve the problem.Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 26 pounds of feed worth $0.56 per pound by mixing one kind worth $0.30 per pound with another worth $0.91 per pound. How many pounds of the cheaper kind should they use in the mix? Round your answer to the nearest pound, if necessary.
A. 17 pounds
B. 15 pounds
C. 16 pounds
D. 11 pounds
Answer: B
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Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by the triangle with vertices (3, 0), (3, 2), (5, 2)
A. 
?
B. 
?
C. 
?
D. 
?
Use colored counters to answer the question. Typically, black counters represent a profit or a positive number, while red counters represent a loss or a negative number. Here, use white in place of red, that is, consider a white counter to mean what a red counter would in the typical case.What colored counters would have to be added to this array in order to represent 6?
Fill in the blank(s) with the appropriate word(s).
Solve by the substitution method.x + 6y = -62x + 7y = -12
A. {(-6, 0)} B. {(6, -1)} C. {(x, y)|x + 6y = -6} D. ?
Compute the quadratic form xTAx for the given matrix A and vector x.A = 
, x = 
A. 4
+ 
- 2
B. 4
+ 
- 2
+ 16x1x2 + 4x2x3
C. 4
+ 
- 2
+ 8x1 + 10x2 + 2x3
D. 4
- 
+ 2
- 16x1x2 - 4x2x3