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 =  . Use the equation  =   + 

src="https://sciemce.com/media/4/ppg__tttt0610191239__f1q35g5.jpg" style="vertical-align: -17.0px;" /> 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

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Answer: B

Mathematics

Express the number in scientific notation.0.0000004

A. 4 × 10-6 B. 4 × 10-8 C. 4 × 10-7 D. 4 × 10-9

State the property that is illustrated.1(15 ? 11) = 15 ? 11

A. commutative property of multiplication B. identity property of multiplication C. associative property of multiplication D. distributive property of multiplication over addition

Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.36°

A. 126°, -54° B. 396°, -144° C. 396°, -324° D. 216°, -144°

Determine the inequality which matches the calculator graph. Do not use your calculator. Instead, use your knowledge of the concepts involved in graphing inequalities.

A. y ? -x B. y ? x C. y ? -x D. y ? x