Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 + y2 = 1x + 2y = 1
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.
You might also like to view...
Solve the system of linear equations. x + 6y = -42 7x + 7y = -49
A. (0, -7) B. Inconsistent: no solutions C. (7, 0) D. (1, -8)
Provide an appropriate response.Find the present value of an ordinary annuity with quarterly payments of $250 for 40 years at 7.25% compounded quarterly.
Fill in the blank(s) with the appropriate word(s).
Solve the equation.
+ 8 = 7
A. {1} B. ? C. {225} D. {-1}
Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places.
A. x = 1.37, y = 2.14 B. x = 2.14, y = 1.37 C. x = -1.37, y = 2.14 D. x = 2.14, y = -1.37