Determine the largest open intervals of the domain over which the function is increasing, decreasing, and constant.
A. Increasing (-?, 0); Decreasing (0, -?)
B. Increasing (0, ?); Decreasing (-?, 0)
C. Increasing (-?, 0); Decreasing (-?, 0)
D. Increasing (-?, 0); Decreasing (0, ?)
Answer: B
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For the given polar equation, write an equivalent rectangular equation. 8r cos ? + 3r sin ? = 1
A. 8y + 3x = 1
B. 8x + 3y = 1
C. 
+ 
= 1
D. 8x + 3y = x2 + y2
Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 50 - x2, y = x2, x = 0
A. 
?
B. 1250?
C. 
?
D. 625?
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.(7x + 9)2 = 64
A. 
B. 
C. 
D. 
Solve.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 9 volts are applied, the current is 4 amperes. What is the current when 24 volts are applied?
A. 10.67 amp B. 2.25 amp C. 54 amp D. 37 amp