Write in scientific notation.0.000000020305
A. 2.0305 × 10-9
B. 2.0305 × 10-7
C. 2.0305 × 10-8
D. 2.0305 × 108
Answer: C
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Graph the polynomial in the given viewing rectangle.
?
, 
by 
?
(a) From the graph, find the coordinates of all local maxima.
?
(b) From the graph, find the coordinates of all local minima.
What will be an ideal response?
Find all the local maxima, local minima, and saddle points of the function.
A. f
= 20, saddle point; f
= 20, saddle point
B. f
= - 60, local maximum
C. f
= 20, saddle point
D. f
= 20, local minimum; f
= 20, local minimum
Divide and simplify.-5x ÷ 
A. - 
B. - 
C. - 
D. - 
Impedance is a measure of the opposition to the flow of current in an electrical circuit. It consists of two parts called resistance and reactance. Light bulbs add resistance to an electrical circuit, and reactance occurs when electricity passes through coils of a wire like those found in electric motors. Impedance Z in ohms (?) may be expressed as a complex number, where the real part represents the resistance and the imaginary part represents the reactance. Use this information to solve the problem.The circuit contains two light bulbs and two electric motors. Express impedance as 
style="vertical-align: -4.0px;" /> A. Z = 4200 + 210i B. Z = 130 + 29i C. Z = 74 + 85i D. Z = 29 + 130i