Solve the problem.In electronics, the relationship between the resistances R1 and R2 of two resistors wired in parallel and their combined resistance R is described by the formula 
= 
+ 
. If the combined resistance of two resistors wired in parallel is 2 ohms and one of the two resistances is 4 ohms, what is the other resistance?
A. 2 ohms
B. 4 ohms
C. 
ohms
D. 1 ohms
Answer: B
Mathematics
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Find v ? u.v = 
and u = 
A. 0
B. 
C. 
i - 
j
D. 
i - 
j
Mathematics
Using the derivative of f(x) given below, determine the critical points of f(x).f'(x) = (x + 5)2 e-x
A. -5 B. 5 C. -5, -3 D. -3
Mathematics
Solve the system by graphing on a calculator. Round to the nearest hundredth if necessary.x2 - y2 = 7.82x = 2y - 5
A. {(-6.31, -5.65), (2.97, -1.01)} B. {(-2.97, -1.01), (6.31, -5.65)} C. {(-2.97, 1.01), (6.31, 5.65)} D. {(-6.31, 5.65), (2.97, 1.01)}
Mathematics
Solve the problem.A pendulum bob swings 6.0 cm on its first oscillation. On each subsequent oscillation the bob travels 
of the previous distance. Find the total distance the bob travels before coming to rest.
A. 12.0 cm B. 13.3 cm C. 13.0 cm D. 9.0 cm
Mathematics