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.
Answer: A
You might also like to view...
Provide an appropriate response.Write the set x ? 3 using interval notation.
A. (-?, 3] B. (3, ?) C. (-?, 3) D. [3, ?
Solve the problem.Volatility refers to:
A. the amount of uncertainty or risk about changes in a security's value B. the likelihood that a security's value will only decrease in value C. a security's value as compared to an industry benchmark D. the likelihood that a security's value will only increase in value
Change the logarithmic expression to an equivalent expression involving an exponent.log3x = 2
A. x2 = 3 B. 23 = x C. 32 = x D. 3x = 2
Find the determinant.det 
A. 932 B. -88 C. -232 D. 88