Use implicit differentiation to find dy/dx and d2y/dx2.xy + 3 = y, at the point (4, -1)
A. 
= 
; 
= 
B. 
= - 
; 
= 0
C. 
= 3; 
= - 24
D. 
= 
; 
= - 
Answer: D
Mathematics
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Use trigonometric identities to find the exact value.
A. - 
B. - 
C. -2
D. - 
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Add.
+ 
A. 
B. - 
C. - 
D. 
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Perform the indicated operations and write the result in standard form.(-6 + 
)2
A. 36 + 100i B. 36 - 100i C. 136 + 120i D. -64 - 120i
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Solve the problem.Salt Lake City, Utah, is due north of Flagstaff, Arizona. Find the distance between Salt Lake City (40°45' north latitude) and Flagstaff (35°16' north latitude). Assume that the radius of the Earth is 3960 miles. Round to nearest whole mile.
Fill in the blank(s) with the appropriate word(s).
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