Solve the problem.The maximum number of volts, E, that can be placed across a resistor is given by the formula  where P is the number of watts of power that the resistor can absorb and R is the resistance of the resistor in ohms. If a 2-watt resistor has a resistance of 18 ohms, find the largest number of volts of electricity that could be placed across the resistor.

A. 12 volts
B. 6 volts
C. 36 volts
D. 3 volts


Answer: B

Mathematics

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Use the inverse trig functions to express the angle in terms of the indicated unknown side. Express angle A in terms of c. Use one of the inverse trig functions tan-1, sin-1, or cos-1.

A. = cos-1 
B. = sin-1 
C. = sin-1 
D. = cos-1 

Mathematics

Express the transform of the given expression in terms of s and ?.y" + 6y' + 2y, f  = -1, f'  = 2

A. ? + s + 4
B. ? - s - 8
C. ? + s + 4
D. ? + s + 6

Mathematics

Write in scientific notation.27,000,000

A. 2.7 × 106 B. 2.7 × 10-6 C. 2.7 × 10-7   D. 2.7 × 107

Mathematics

Solve the initial value problem for y as a function of x.x  = , x ? 4, y(4) = 0

A. y =  - x + 4
B. y = 
C. y = 4 
D. y = 4 ln 

Mathematics