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 3 A/s while the voltage remains constant at 28 V, at what rate is the resistance increasing (in ?/sec) when the current is 20 A? (Do not round your answer.)
A. 
?/sec
B. 
?/sec
C. 
?/sec
D. 
?/sec
Answer: B
Mathematics
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Simplify. Include the absolute value symbol if necessary.
A. |3x - 8| B. 3x - 8 C. -3x + 8 D. 9x2 - 48x + 64
Mathematics
Graph the curve whose parametric representation is given. x = 9 cos t , y = -4 sin t, 0 ? t ? 4?
A. 
B. 
C. 
D. 
Mathematics
Find the value of each square root by use of a calculator. Each number is approximate.
+ 
A. 4.7506 B. 6.5863 C. 4.75060 D. 6.58630
Mathematics
Solve the problem. Round to the nearest cent.Find the future value of $2000 invested over 2 years in an account with an APR of 6% compounded monthly.
A. $4500.00 B. $1803.46 C. $2254.32 D. $2020.05
Mathematics