Find the second-order partial derivatives of the given function. Show that the mixed partial derivatives fxy and fyx are equal.
?
?
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Divide using long division.
A. 3x - 7 B. 3x - 1 C. 3x + 7 D. 3x + 1
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Find an equation for the tangent to the curve at the given point.y = 
, (3, 6.75)
A. y = 
x + 
B. y = 
x + 
C. y = 
x - 
D. y = 
x - 
Mathematics
Solve the problem.Don sells real estate and receives a commission of $790. If his commission rate is 4% of the seller's net, what was the seller's net?
A. $19,750 B. $23,700 C. $9875 D. $79,000
Mathematics
Factor. If a polynomial is prime, state this.3x3 + 6x2y - 24xy2
A. 3x(x + 2y)(x - 4y) B. (x - 2y)(3x2 + 12xy) C. 3x(x - 2y)(x + 4y) D. (3x2 + 6xy)(x - 4y)
Mathematics