Solve the problem.The power that a resistor must dissipate is jointly proportional to the square of the current flowing through the resistor and the resistance of the resistor. If a resistor needs to dissipate  of power when  of current is flowing through the resistor whose resistance is  find the power that a resistor needs to dissipate when -4.0px;" /> of current are flowing through a resistor whose resistance is 



A. 252 watts

B. 126 watts

C. 294 watts

D. 42 watts

---

Answer: A

Mathematics

Solve. Round to the nearest percent if necessary.A company increased the number of its employees from 110 to 132. What was the percent of increase?

A. 120% B. 22% C. 20% D. 17%

Solve.A coil of wire rotating in a magnetic field induces a voltage given by  where t is time in seconds. Find the smallest positive time to produce a voltage of 10.

A. 2.8? sec B. 3? sec C. 3 sec D. 2.8 sec

Multiply. 

A.
B.
C.
D.

Find the quotient and the remainder.x2 + 2x - 45 divided by x + 8

A. x - 3; remainder 6 B. x + 6; remainder 3 C. x - 6; remainder 3 D. x - 6; remainder 0