Provide an appropriate response.What conditions must be placed on the values of x and y so the expression 
will be equal to the expression 
+ 
?
A. y must always be negative.
B. x and y must have opposite signs or at least one be zero.
C. x and y must have the same signs or at least one be zero.
D. y must always be positive.
Answer: B
Mathematics
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Perform the indicated operation or operations.
- 
A. 
B. 
C. 
D. 
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In a normal distribution, what percent of the data lie above 1 standard deviation of the mean? Round your answer to one decimal place.
a. 13.6% b. 27.2% c. 31.8% d. 15.9 % e. 4.6%
Mathematics
Provide an appropriate response.If m < 0, the graph of y = mx + b 
.
A. has no intercept B. does not represent a function C. is very steep D. slopes downward to the right
Mathematics
Divide.
A. 184 B. 18.4 C. 1.84 D. 0.184
Mathematics