Simplify.logaa5
A. a5
B. 5
C. 1
D. 5logaa
Answer: B
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Find the limit.
A. ?
B. - 
C. 
D. 0
Graph the function on the indicated interval.y = 
cos (?x), 0 ? x ? 4 
A. 
B. 
C. 
D. 
Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.
x2 + 
x - 
= 0
A. 0.75 B. -1.25, 0.75 C. -1 D. -0.781, 1.281
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