Perform the indicated operation. Assume that all variables represent positive numbers.
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Write in logarithmic form.97x = y
A. logy 7x = 9 B. log9 7x = y C. log9 y = 7x D. logy 9 = 7x
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Two curves are said to be orthogonal if their tangent lines are perpendicular at each point of intersection of the curves. Show that the curves of the given equations are orthogonal.
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Use De Moivre's theorem to evaluate the expression. Write the result in standard form.(2(cos 180° + i sin 180°))4
A. -16i B. -16 C. 16i D. 16
Mathematics
Solve for x.|x + 2| < 15
A. -17 < x < 13 B. x < 13 C. x < -17 D. -13 < x < 17
Mathematics