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 6 A/s while the voltage remains constant at 28 V, at what rate is the resistance increasing (in ?/sec) when the current is 44 A? (Do not round your answer.)
A. 
?/sec
B. 
?/sec
C. 
?/sec
D. 
?/sec
Answer: A
Mathematics
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Use the addition rule to solve the problem.One digit from the number 8,757,117 is written on each of seven cards. What is the probability of drawing a card that shows 8 or 1?
A. 
B. 
C. 
D. 
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Solve.x(56 + 7x) = 0
A. 0, -8 B. -28 C. -7, -8 D. -8
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Solve the inequality and graph the solution.-2(3z - 7) < -8z + 8
A. (-?, -3)
B. (-3, ?)
C. (-8, ?)
D. (-?, -8)
Mathematics
The demand function for a certain product is given by 
, where p is the price and q is the number of units demanded. Find the average price as demand ranges from 24 to 92 units. Round your answer to the nearest penny.
?
A. $576.51 B. $290.51 C. $1,238.44 D. $427.05 E. $982.21
Mathematics