Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 + y2 =110x + 4y =-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 or y.
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Identify the property that allows you to conclude that the triangles are congruent. Or, if such a conclusion cannot be made, answer "None."
A. ASA B. SSS C. SAS D. None
Solve the rational inequality. Express the solution in interval notation.
< 0
A. (-7, 5) B. (5, ?) C. (-?, -7) ? (5, ?) D. (-?, -7)
Use the Binomial Theorem to expand the binomial.(
+ 
)4
A. x2 + 4
x1/2 + 30x + 20
x1/2 + 625
B. x2 + 4
x3/2 + 30x + 20
x1/2 + 25
C. x2 + 25
D. x2 + 2
x3/2 + 15x + 10
x1/2 + 25
Solve the problem.Nikki is fishing from a bank 20 feet above water level. In this location, the fish tend to feed at 38 feet below the surface. How long must Nikki's fish line be to reach the fish?
A. 58 feet B. -20 feet C. 18 feet D. -18 feet