Find the derivative.y = 
+ 
A. 
= 
+ 
B. 
= 
+ 
C. 
= 
+ 
D. 
= 
+ 
Answer: D
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Find an equation of a square root curve of the form 
that approximately contains the given points. Round the values of a and b to the second decimal place if necessary.(0, 6) and (4, 16)
A. y = 5
- 6
B. y = -5
- 6
C. y = 5
+ 6
D. y = -5
+ 6
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: all real numbers range: {y|y = 2 or y = -6} intercept: (0, -6) symmetry: none B. function domain: all real numbers range: all real numbers intercept: (0, -6) symmetry: none C. function domain: {x|x = 2 or x = -6} range: all real numbers intercept: (-6, 0) symmetry: x-axis D. not a function
Find the exact value of the expression.
A. - 
B. -2
C. - 
D. -
Use Bayes' rule to find the indicated probability.Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defective items, and store B has 66% of the sales, 1% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives a defective item of this product as a gift. What is the probability it came from store B?
A. 0.275 B. 0.22 C. 0.5667 D. 0.7083