Find the derivative of the function at the given point in the direction of A.
A = 3i - 4j
A. - 
B. - 
C. - 24
D. - 
Answer: C
Mathematics
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Solve the equation and check the solution.-0.04(200) + 0.08x = 0.02(x + 200)
A. x = 200 B. x = 210 C. x = 190 D. x = 100
Mathematics
Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. 5 ln 
+ 
- ln 
+ sin-1 
+ C
B. 6 ln 
+ ln 
+ 
tan-1 
+ C
C. 7 ln 
+ ln 
+ 
tan-1 
+ C
D. 6 ln 
- 
+ ln 
+ 
tan-1 
+ C
Mathematics
Perform the indicated operation and write the answer in the form 
where a and b are real numbers.(6 - 5i)(7 + 3i)
A. -15i2 - 17i + 42 B. 27 - 53i C. 57 + 17i D. 57 - 17i
Mathematics
Find the vertices and the foci of the given ellipse.
+ 
= 1
A. V: (-5, 0), (5, 0); F: (-4, 0), (4, 0) B. V: (-5, 0), (5, 0); F: (0, -3), (0, 3) C. V: (0, -5), (0, 5); F: (-3, 0), (3, 0) D. V: (0, -5), (0, 5); F: (0, -4), (0, 4)
Mathematics