Find the product.(x - 7y)(x - 7y)
A. x2 - 14xy + 49y2
B. x2 - 17xy + 49y2
C. x - 14xy + 49y
D. x2 - 14xy - 14y2
Answer: A
Mathematics
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Tell whether the statement is true or false.Some rational numbers are irrational.
A. True B. False
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Construct the requested tree diagram.Construct a tree diagram that shows all possible outcomes when two coins are tossed.
A.
| | |
| H |
| | |
| T |
B.
| /\ |
| H | T |
| | | | |
| T | H |
C.
| /\ |
| H | T |
| /| | | |
| H | T | H |
D.
| /\ |
| H | T |
| /\ | /\ |
| H | T | H | T |
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Find the intersection of the given intervals.(-10, 0) ? [-2, 10]
A. (0, 10] B. (-10, -2] C. (-10, 10] D. [-2, 0)
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Find the exact value of the trigonometric expression without the use of a calculator.cos (135° + 240°)
A. 
B. 
C. - 
D. - 
Mathematics