Perform the operation indicated. Simplify.
- 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Using Green's Theorem, find the outward flux of F across the closed curve C.F = - 
i + 
j ; C is the region defined by the polar coordinate inequalities 
and 
A. 0 B. 74 C. 48 D. 24
Mathematics
Change the polar coordinates (r, ?) to rectangular coordinates (x, y).
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 4 foot-candles, find the intensity on a screen 20 ft from the light.
A. 
foot-candle
B. 1
foot-candles
C. 
foot-candle
D. 2 foot-candles
Mathematics
Multiply and simplify.18 
A. 
B. -162
C. -2
D. 2
Mathematics