Solve the variation problem.The voltage across a resistor is jointly proportional to the resistance of the resistor and the current flowing through the resistor. If the voltage across a resistor is  for a resistor whose resistance is  and when the current flowing through the resistor is  find the voltage across a resistor whose resistance is -4.0px;" /> when the current flowing through the resistor is 



A. 27 volts

B. 16 volts

C. 6 volts

D. 24 volts

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Answer: C

Mathematics

Find the quotient using long division.

A. x² - x - 12 + 
B. x² + 5x + 4 + 
C. x² - 5x - 4 + 
D. x² - 5x + 4 - 

Simplify the exponential expression.-5-4

A. -625
B. - 
C.
D. 625

Use the horizontal line test to determine whether the function is one-to-one.

A. Yes B. No

Solve the problem.The magnitude of star A is 3 more than that of star B. How is their corresponding brightness related?

A. Star B is ? 25.8 times brighter than star A. B. Star B is ? 5.8 times brighter than star A. C. Star B is ? 158.5 times brighter than star A. D. Star B is ? 15.8 times brighter than star A.