Solve by the method of your choice.2x2 + xy - y2 = 3x2 + 2xy + y2 = 3

A.
B.
C.
D.


Answer: D

Mathematics

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Solve the problem.Write the number in standard notation: One hundred two million, five hundred seven

A. 102,507,000 B. 102,000,507 C. 12,000,507 D. 102,507

Mathematics

Add or subtract as indicated. Simplify, if necessary.-  - 

A.
B. - 
C. - 
D. - 

Mathematics

Solve the problem.If P = (-6, -7) and Q = (x, -79), find all numbers x such that the vector represented by  has length -78.

A. {36, 24} B. {24, -36} C. {36, -36} D. {24, -42}

Mathematics

Provide an appropriate response.A proper fraction has the form . What is the largest possible number that x can be?

A. 21 B. 20 C. 22 D. 10.5

Mathematics