Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 + y2 =49-6x - 4y =7

What will be an ideal response?


Substitution should be used, because using elimination would mean introducing an xy-term into the second equation unnecessarily. The second equation should be solved for x or y.

Mathematics

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Perform the operation and write the result in standard form. ? ?

A.
B.
C.
D.
E.

Mathematics

The graph of a trigonometric function of the form y = A sin (Bx) or y = A cos (Bx) for B > 0 is given. Determine the equation of the function represented by the graph.

A. y = 2 sin 3x
B. y = 3 sin 2x
C. y = 2 sin x
D. y = 3 sin x

Mathematics

Factor completely. If the polynomial cannot be factored, say it is prime.(3x - 4)3 + 27

A. (3x - 1)(9x2 - 15x + 13) B. (3x - 1)(9x2 - 33x + 37) C. (3x - 7)(9x2 - 15x + 13) D. (3x - 1)(9x2 - 15x + 37)

Mathematics

Solve the problem.During an intramural basketball game, Team A scored 18 fewer points than Team B. Together, both teams scored a total of 146 points. How many points did Team A score during the game?

A. 64 points B. 73 points C. 82 points D. 65 points

Mathematics