Simplify the expression. Assume that all variables are positive when they appear.
+ 5
+ 4
A. 37x
B. 37x
C. 9x
D. 9x
Answer: B
Mathematics
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Find the derivative of the function at the point p in the direction of a.f(x, y) = 4x2 - xy + 5y2, p = (-3, -5), a = i - 2j
A. 25
B. 
C. 15
D. 1
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Find the exact value of the expression.sin 185° cos 65° - cos 185° sin 65°
A. 
B. - 
C. - 
D. 
Mathematics
Find the product.
A. 100x2 - 
x - 
B. 10x2 - 
C. 100x2 + 
D. 100x2 - 
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Perform the operation by applying the standard order of operations for a series of calculations.240 ÷ 5 - 2
A. 46 B. 233 C. 80 D. 237
Mathematics