Solve the problem.Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 16 pounds of feed worth $0.38 per pound by mixing one kind worth $0.21 per pound with another worth $0.60 per pound. How many pounds of the cheaper kind should they use in the mix? Round to the nearest whole pound if necessary.
A. 9 pounds
B. 12 pounds
C. 7 pounds
D. 11 pounds
Answer: A
Mathematics
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Find the equation of the line described. Write the equation in slope-intercept form, if possible.(8, 8); slope = 
A. y = 
x - 
B. y = - 
x - 
C. y = 
x + 
D. y = - 
x + 
Mathematics
List all the factors of each number.34
A. 2 ? 18 B. 2 ? 2 ? 5 C. 2 ? 17 D. 2 ? 2 ? 2
Mathematics
Use the given graph of f(x) = ax2 + bx + c to solve the specified inequality.f(x) ? 0
A. x ? 3 B. x ? 3 or x ? 7 C. 3 ? x ? 7 D. No solutions
Mathematics
Identify the graph of the equation as an ellipse or a hyperbola. Do not graph.
- 
= 1
A. hyperbola B. ellipse
Mathematics