Solve the problem.A certain noise has an intensity I of 
. Given that decibel level D is related to intensity by 
, where I0 is 10-12, determine the decibel level of the noise. Round to the nearest decibel.
A. 75 decibels
B. 195 decibels
C. 85 decibels
D. 8 decibels
Answer: C
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Use a graphing utility to graph the equation. Use the graph to approximate the values of x that satisfy each inequality.
?
Equation:
?
Inequality:
?
A. ?
B. ?
C. ?
D. ?
E. ?
Provide an appropriate response.Use the formal definitions of limits to prove 
= ?
What will be an ideal response?
Identify the type of surface represented by the given equation. 
+ 
= 
A. Elliptical paraboloid
B. Elliptical cone
C. Hyperbolic paraboloid
D.
| Ellipsoid |
Solve the problem.Following the manufacturer's instructions, Kay emptied her car's radiator, poured in 
liter of cleaning agent, waited an hour, drained 
liter of the cleaning agent, and finally added 
liter of plain water. How many liters of fluid (water and cleaning agent) were in the radiator at the end of the procedure?
A. 
liter(s)
B. 
liter(s)
C. 
liter(s)
D. 
liter