Solve.Is (4, 5) a solution of 5x - 5y = 45?
A. Yes
B. No
Answer: B
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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__tttt0610191239__f1q35g5.jpg" style="vertical-align: -17.0px;" /> 
. Use the equation 
= 
+ 
to find how much the power is changing at the instant when R = 4 ohms, V = 3 volts, 
and 
A. -2.19 watts
B. -2.31 watts
C. 2.19 watts
D. 2.31 watts
Identify the terms. Then identify the coefficients of the variable terms of the expression.
A. 
and 
are the terms; 7 and 
are the coefficients.
B. 
and 
are the terms; 7 and 
are the coefficients.
C. 
and 
are the terms; 7 and 
are the coefficients.
D. 
and 
are the terms; -7 and 
are the coefficients.
E. 
and 
are the terms; 7 and 
are the coefficients.
Graph the function on a grapher. Then use the grapher to find the x- and y-intercepts. Round to the nearest hundredth if necessary.f(x) = -17.5x2 - 6.68x + 2.89
A. (-0.26, 0), (0.64, 0), (0, -2.89) B. (-0.64, 0), (0.26, 0), (0, 2.89) C. No x-intercepts, (0, 2.89) D. (0.26, 0), (0, 2.89)
Solve the exponential equation using the method of "relating the bases" by first rewriting the equation in the form 
= 8x3
A. {0} B. {-1, 0, 2} C. {-1, 2} D. {-1, 0, 1, 2}