Solve the problem.Suppose we know one factor of 14x2 - 61x - 9 is 7x + 1. What is the other factor?
A. 2x - 9
B. x - 18
C. 7x - 1
D. 2x + 9
Answer: A
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Graph the line having slope m and containing the given point. Do not find the equation of the line.m = - 
, (4, 5)
A. 
B. 
C. 
D. 
Perform the indicated exponentiation.(-3)2
A. -6 B. 6 C. -9 D. 9
Solve the problem.Formulate the following problem as a linear programming problem (DO NOT SOLVE):A veterinarian wants to set up a special diet that will contain at least 500 units of vitamin B1 at least 800 units of vitamin B2 and at least 700 units of vitamin B6. She also wants to limit the diet to at most 300 total grams. There are three feed mixes available, mix P, mix Q, and mix R. A gram of mix P contains 3 units of vitamin B1, 5 units of vitamin B2, and 8 units of vitamin B6. A gram of mix Q contains 9 units of vitamin B1, 8 units of vitamin B2, and 6 units of vitamin B6. A gram of mix R contains 7 units of vitamin B1, 6 units of vitamin B2, and 9 units of vitamin B6. Mix P costs $0.10 per gram, mix Q costs $0.12 per gram, and mix R costs $0.21 per gram. How many grams of each mix
should the veterinarian use to satisfy the requirements of the diet at minimal costs? (Let x1 equal the number of grams of mix P, x2 equal the number of grams of mix Q, and x3 equal the number of grams of mix R that are used in the diet).
A.
| Minimize | C = -0.10x1- 0.12x2 - 0.21x3 |
B.
| Minimize | C = 0.10x1- 0.12x2 + 0.21x3 |
C.
| Minimize | C = 0.10x1 + 0.12x2 + 0.21x3 |
D.
| Minimize | C = 0.10x1- 0.12x2 - 0.21x3 |
Solve the problem.A box has dimensions 2" × 3" × 4". (See illustration.) 
Determine the angle ? formed by the diagonal of the 2" × 3" side and the diagonal of the 3" × 4" side. Round your answer to the nearest degree.
A. 62° B. 65° C. 60° D. 50°