Solve the problem. Round your answer, if appropriate.Electrical systems are governed by Ohm's law, which states that V = IR, where V = voltage, I = current, and R = resistance. If the current in an electrical system is decreasing at a rate of 4 A/s while the voltage remains constant at 20 V, at what rate is the resistance increasing (in ?/sec) when the current is 24 A? (Do not round your answer.)
A. 
?/sec
B. 
?/sec
C. 
?/sec
D. 
?/sec
Answer: D
Mathematics
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Evaluate the integral.
dx
A. 609 B. 21 C. 2436 D. -609
Mathematics
Convert the length as indicated. Round the answer to two decimal places.5000 yards to kilometers (yards ? meters ? kilometers)
A. 0.22 km B. 4.59 km C. 4,587,155.96 km D. 5.45 km
Mathematics
Solve for part in the problem. Round to the nearest hundredth, if necessary.7000% of $251
A. $1757 B. $175,700 C. $17,570 D. $1,757,000
Mathematics
Give all possible rational zeros for the polynomial.f(x) = -2x4 + 3x3 + 4x2 + 18
A. ±1, ± 
, ±2, ±3, ±6, ±9, ±18
B. ±1, ±2, ± 
, ± 
, ± 
, ± 
, ± 
C. ±1, ± 
, ±2, ±3, ± 
, ±6, ±9, ± 
, ±18
D. ±1, ±2, ±3, ±6, ±9, ±18
Mathematics