Solve the problem.The percent of concentration of a drug in the bloodstream x hours after the drug is administered is given by K(t) = 
. On what time interval is the concentration of the drug increasing?
A. (1, 8)
B. (0, 8)
C. (0, 9)
D. (-8, 8)
Answer: B
Mathematics
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Solve.What is the compression ratio of a gasoline engine whose expanded cylinder volume is 225 cu in. and whose compressed volume is 18 cu in.?
What will be an ideal response?
Mathematics
Graph the exponential function.f(x) = (
)x 
A. 
B. 
C. 
D. 
Mathematics
Find the zero of the linear function.f(z) = - 
z - 5
A. 1 B. -1 C. -20 D. 20
Mathematics
Write as a rate in simplest form. Express your answer as a fraction.155 miles per 15 gallons
A. 
B. 
C. 
D. 
Mathematics