Consider the sets X and Y. Write the statement in symbols.
?
The complement of the intersection of X and Y.
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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Solve.Find two numbers whose sum is 40 and whose product is as large as possible. [Hint: Let x and 
be the two numbers.Their product can be described by the function 
A. 
and 
B. 20 and 60
C. 19 and 21
D. 20 and 20
Mathematics
Let P = 
, X = 
, and T = 
, where all the elements are real numbers. Use these matrices to determine whether the statement is true or false for 2 × 2 matrices.(PX)T = P(XT)
A. True B. False
Mathematics
Multiply. Assume that all variables represent nonnegative real numbers.(
+ 4)(
- 6)
A. -19 - 6 
+ 4 
B. -49 + 19 ? 
C. -19
D. -15 - 6 ? 
Mathematics
Refer to the figure. 
Mathematics