Decide whether the equation defines y as a function of x.x = y2 - 2
A. function
B. not a function
Answer: B
Mathematics
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Find the derivative of y with respect to x.y = -cos-1 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Average temperatures for the first 6 months of the last year were as follows: Jan. 22°, Feb. 20°, Mar. 36°, Apr. 45°, May 57°, June 52°. Find the median of the temperatures.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Add the given pair of complex numbers geometrically.z1 = 5i, z2 = 6
A. 11i B. 6 - 5i C. 5 + 6i D. 6 + 5i
Mathematics
Combine like terms.-15 + 7.2x - 6.1 - 2.6x
A. 4.6x - 8.9 B. 4.6x - 21.1 C. -4.3x D. 5.6x - 21.1
Mathematics