Given cos? =
, find the exact value of sin?.
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Solve the problem.A simple electrical circuit consists of a resistor connected between the terminals of a battery. The voltage V (in volts) is dropping as the battery wears out. At the same time, the resistance R (in ohms) is increasing as the resistor heats up. The power P (in watts) dissipated by the circuit is given by P = src="https://sciemce.com/media/4/ppg__as0611191936__f1q230g5.jpg" style="vertical-align: -17.0px;" /> 
. Use the equation
= 
+ 
to find how much the power is changing at the instant when R = 2 ohms, V = 2 volts, 
and dV/dt = -0.02 volts/sec.
A. -0.09 watts
B. -0.01 watts
C. 0.01 watts
D. 0.09 watts
Graph the piecewise function.f(x) = 
A. 
B. 
C. 
D. 
Graph the solution set of the system of inequalities.
A. 
B. 
C. 
D. 
Simplify.
If the radical is irrational, do not find an approximate value.
A. 
B. 
C. 
D. none of these