Use the two steps for solving a linear programming problem to solve the problem.Suppose an animal feed to be mixed from soybean meal and oats must contain at least 100 lb of protein, 20 lb of fat, and 12 lb of mineral ash. Each 100-lb sack of soybean meal costs $20 and contains 50 lb of protein, 10 lb of fat, and 8 lb of mineral ash. Each 100-lb sack of alfalfa costs $11 and contains 30 lb of protein, 8 lb of fat, and 3 lb of mineral ash. How many sacks of each should be used to satisfy the minimum requirements at minimum cost?
A. 
sack of soybeans and 
sack of alfalfa
B. 
sacks of soybeans and 
sacks of alfalfa
C. 2 sacks of soybeans and 0 sacks of alfalfa
D. 0 sacks of soybeans and 2 sacks of alfalfa
Answer: A
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Verify the integration formula.
ln x tanh-1 (ln x) + 
ln (1 - (ln x)2)+ C
A. Yes B. No
Determine whether or not the function is one-to-one.
A. No B. Yes
Solve.Suppose that you own a home which is valued at $153,000. You must move to a different city. Use the formula below to find out how much it would cost to buy a similar (replacement) home in the city that you will move to. Assume that the index of your city is 207 and that the index of the new city is 137. Round your answer to the nearest dollar. Cost of Your Home in New City = (Value of Your Home) ÷ (Index of Your City) × (Index of New City)
A. $101,261 B. $106,761 C. $231,175 D. $223,575
Graph the system of inequalities.2x + 3y ? 6 x - y ? 3 x ? 1
A. 
B. 
C. 
D. 