Solve.If the voltage, V, in an electric circuit is held constant, the current, I, is inversely proportional to the resistance, R. If the current is 90 milliamperes when the resistance is 2 ohms, find the current when the resistance is 6 ohms.
A. 267 milliamperes
B. 60 milliamperes
C. 270 milliamperes
D. 30 milliamperes
Answer: D
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Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.
A. f =
, local minimum
B. saddle point
C. f(6, 6) = 1,080, local maximum
D. f =
, local minimum
Provide an appropriate response. If the local sales tax rate is 5.5% and an additional motel tax of 4.8% is charged to a $145 room, what is the total room bill?
A. $151.96 B. $152.98 C. $145.00 D. $159.94
Find different polar coordinates (r, ?) for the same point for which r > 0 and 360° ? ? < 720°(8, 20°)
A. (-8, 110)° B. (-8, 380)° C. (8, 380)° D. (8, 200)°
Find the expression.u = -3i - 2j, v = 7i + 9jFind u + v.
A. 10i + 7j B. 4i + 7j C. 3i + 7j D. -10i + 3j