Find the domain of the function.
A. -9 ? p ? 9
B. p ? -9 or p ? 9
C. p ? 0
D. p ? 9
E. all real numbers
Answer: A
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Solve the problem.Let y(t) be the concentration of a substance in a chemical reaction. The change in the concentration, under appropriate conditions, is modeled by the equation 
where k > 0 is a rate constant and the positive integer n is the order of the reaction. Solve the initial value problem for a third-order reaction 
, assuming y(0) = 3 and k = 0.3.
A. y = 
B. y = 
C. y = 
D. y = - 
Solve the problem. Round your answer, if appropriate.Water is discharged from a pipeline at a velocity v (in ft/sec) given by 
where p is the pressure (in psi). If the water pressure is changing at a rate of 
find the acceleration (dv/dt) of the water when 
A. 70.9 ft/sec2 B. 144 ft/sec2 C. 43.2 ft/sec2 D. 2130 ft/sec2
Provide the appropriate response.There is a number that has 2, 5, and 8 as divisors. This number has exactly seven additional divisors. What is the number?
A. 40 B. 320 C. 80 D. 70
Round the number as requested.7.32 (nearest tenth)
A. 7.3 B. 7.5 C. 7.2 D. 7.4