Solve the problem.Electrical systems are governed by Ohm's law, which states that 
, where 
, 
, and 
. If the current in an electrical system is decreasing at a rate of 
while the voltage remains constant at 10 V, at what rate
is the resistance increasing when the current is 24 A?
A. 
ohms/s
B. 
ohms/s
C. 15 ohms/s
D. 
ohms/s
Answer: B
Mathematics
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Solve the problem.On Monday, an investor bought 100 shares of stock. On Tuesday, the value of the shares went up 2%. How much did the investor pay for the 100 shares if he sold them Wednesday morning for $1530?
A. $1480 B. $1550 C. $1500 D. $1561
Mathematics
For the given polar equation, write an equivalent rectangular equation.r = 2(sin ? - cos ?)
A. x2 + y2 = 2x - 2y B. x2 + y2 = 2y - 2x C. 2x2 + 2y2 = x - y D. 2x2 + 2y2 = y - x
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Identify the intervals where the function is changing as requested.Increasing
A. (-2, 0) B. (3, ?) C. (3, 6) D. (-2, ?)
Mathematics
Solve the equation by factoring.(x - 3)(x + 9) = 0
A. {3, -3, 9, -9} B. {3, 9} C. {3, -9} D. {-3, 9}
Mathematics