Express the number in scientific notation.0.00008516
A. 8.516 × 104
B. 8.516 × 10-5
C. 8.516 × 10-4
D. 8.516 × 105
Answer: B
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Perform the indicated operation and, if possible, simplify.
? 
A. 
B. 
C. 
D. 
Refer to the circle graph to solve the problem.Time Required to Install Carpeting in a House (Work Shift = 8 hours) 
What fraction of the work shift was spent moving furniture and cleaning up?
A. 
B. 
C. 
D. 
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 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.
sacks of soybeans and 
sacks of oatsD. 0 sacks of soybeans and 2 sacks of oats
Rewrite the given expression as a single logarithm. Assume that all variables are defined in such a way that variable expressions are positive and bases are positive numbers not equal to 1.3loga q - 
loga r + 
loga f - 5loga p
A. loga (3q - 
r + 
f - 5p)
B. loga 
C. loga 
D. loga 