Multiply. Simplify if possible.
? 
A. 
B. 
C. 16z
D. 
Answer: C
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Answer the question.In a study to determine the average weight of a house cat, which of the following is the most representative sample?
A. All of the cats that a pet groomer sees in one week B. Some of the cats in each of several neighborhoods C. All of the cats that a veterinarian sees in one week D. All of the cats in your neighborhood
Solve the problem.A certain electronic air cleaner is capable of filtering x liters of air per second and the percentage of the contaminants that are removed from the air may be calculated by 
where 
Graph f in [0,85,5] by 
Then, use the intersection-of-graphs method to estimate the x-values where 75% to 95% of the pollutants are removed.
height="180" width="180" />
A. 75% to 95% are removed when
about 36 to 47 liters of air are
filtered.
B. 75% to 95% are removed when
about 25 to 33 liters of air are
filtered.
C. 75% to 95% are removed when
about 45 to 56 liters of air are
filtered.
D. 75% to 95% are removed when
about 27 to 36 liters of air are
filtered.
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
- 
A. 
B. 
C. 
D. 
Solve. Write the fraction in simplest form.Given the following diagram, find L, its total length.
x = 
inch, y = 
inch, z = 
inch
A. 
in.
B. 
in.
C. 
in.
D. 
in.