Choose the expression that is equivalent to the given rational number.
A. 1
B. 
C. 0.8
D. 0.
Answer: C
Mathematics
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, 0) for cos xy + yex = 0.
A. 
B. e
C. 1
D. 0
Mathematics
Find numbers a and b, or k, so that f is continuous at every point.
A. a = -5, b = 1 B. a = 6, b = -11 C. a = 6, b = 13 D. Impossible
Mathematics
Simplify.If P(x) = -4x2 - 6x - 7 and Q(x) = -3x2 + 4, find 3[P(x)] + Q(x).
A. -15x2 - 18x - 17 B. 15x2 - 18x - 17 C. -15x2 - 18x + 17 D. -15x2 + 18x - 17
Mathematics
Find an equation for the indicated ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics