Find the average value of the function f over the given region.f(x, y) = 4x + 9y over the triangle with vertices 
, 
, and 
A. 32
B. 8
C. 
D. 11
Answer: A
Mathematics
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Determine whether the given function satisfies Laplace's equation.f(x, y) = cos (x) sin (-y)
A. Yes B. No
Mathematics
The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r sin ? = 10
A. x = 10 B. y = 10 C. x = 10y D. y = 10x
Mathematics
Find the vertical asymptotes, if any, of the graph of the rational function.
A. x = - 49 B. x = 8, x = 9 C. x = 8, x = 9, x = - 49 D. x = -8, x = -9
Mathematics
Find all rational zeros.f
= x4 + 2x3 + 2x2 - 4x - 8
A. No rational zeros B. -2, 2 C. 2, -1 D. -2, -3
Mathematics