Use graphical methods to solve the linear programming problem.Suppose an horse feed to be mixed from soybean meal and oats must contain at least 100 lb of protein, 20 lb of fat, and 9 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 oats costs $10 and contains 20 lb of protein, 5 lb of fat, and 1 lb of mineral ash. How many sacks of each should be used to satisfy the minimum requirements at minimum cost?
A.
| 2 sacks of soybeans and 0 sacks of oats |
B.
sacks of soybeans and 
sacks of oatsC. 0 sacks of soybeans and 2 sacks of oats
D.
sacks of soybeans and 
sacks of oatsAnswer: A
Mathematics
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Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.
A. - 
B. - 
C. - 
D. 
Mathematics
Solve.Jenna read 
of her book on Monday, 
of her book on Tuesday, and 
of her book on Wednesday. What part of her book has she read?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.County records list a rectangular parcel of land as measuring 38,688 square yards. A surveyor measures the length of the parcel of land as 248 yards. What is the width of the parcel?
A. The width of the parcel is 165 yards. B. The width of the parcel is 149 yards. C. The width of the parcel is 38,440 yards. D. The width of the parcel is 156 yards.
Mathematics
Solve the equation by factoring.(x + 5)(x + 1) = 21
A. {-2, 8} B. {-5, -1} C. {-8, 2} D. {1, 5}
Mathematics