A dietitian is asked to design a special dietary supplement using two different foods. Each ounce of food X contains 20 units of calcium, 15 units of iron, and 10 units of vitamin B. Each ounce of food Y contains 10 units of calcium, 10 units of iron, and 20 units of vitamin B. The minimum daily requirements of the diet are 350 units of calcium, 300 units of iron, and 400 units of vitamin B. Write a system of inequalities describing the different amounts of food X and food Y that can be used.
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A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Use the table of integrals to find the integral.
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Use C as the constant of integration.
What will be an ideal response?
Mathematics
Convert the polar equation to a rectangular equation.r(4 + cos ?)= 12
A. 16x2 + 16y2 + 24x - 144 = 0 B. 16x2 + 15y2 + 24y - 144 = 0 C. 17x2 + 16y2 - 24x - 144 = 0 D. 15x2 + 16y2 + 24x - 144 = 0
Mathematics
Solve. Round your answer to three decimal places if necessary.31 + 2x = 27
A. -1 B. 3 C. 9 D. 1
Mathematics
Solve the linear system of equations. If the system is inconsistent, indicate this.
Mathematics