List all the factors of the number.19
A. 1, 19
B. 1
C. 19
D. no factors
Answer: A
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Write the first six terms of the arithmetic sequence with the first term, a1, and common difference, d.a1 = 
, d = - 
A. 
, - 
, - 
, - 
, - 
, - 
B. 
, - 
, 
, - 
, 
, - 
C. 0, - 
, - 1, - 
, - 2, - 
D. 
, 0, - 
, - 1, - 
, - 2
Find the focus and directrix of the parabola with the given equation.y2 = -28x
A. focus: (0, -7) directrix: y = 7 B. focus: (-7, 0) directrix: x = 7 C. focus: (-7, 0) directrix: y = 7 D. focus: (7, 0) directrix: x = -7
Find all the real zeros of the polynomial.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve using matrices.Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 19 pounds of feed worth $0.39 per pound by mixing one kind worth $0.12 per pound with another worth $0.52 per pound. How many pounds of the cheaper kind should they use in the mix?
A. 8 pounds B. 18 pounds C. 13 pounds D. 6 pounds