Solve the problem.Evaluate , a > 0by integrating 

A.
B.
C.
D.


Answer: A

Mathematics

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Solve the problem.For a resistor in a direct current circuit that does not vary its resistance, the power that a resistor must dissipate is directly proportional to the square of the voltage across the resistor. The resistor must dissipate   watt of power when the voltage across the resistor is 8 volts. Find the power that the resistor must dissipate when the voltage across it is 24 volts.

A.  watt
B.  watt
C.  watt
D. 4 watts

Mathematics

Solve the system of equations.x + 5y + 3z = 31  5y + 3z = 29  z = 3

A. (3, 4, 2) B. (2, 4, 3) C. (2, 3, 4) D. No solution

Mathematics

The graph of a function f is given. Use the graph to answer the question.How often does the line y = -50 intersect the graph?

A. once B. twice C. three times D. does not intersect

Mathematics

Find all numbers that must be excluded from the domain of the rational expression.

A. x ? 
B. x ? 8
C. x ? 8, x ? -8
D. x ? 64

Mathematics