Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(-7, 0), (-7, 7)}
B. {(7, 7), (-7, 7)}
C. {(7, 0), (7, 7)}
D. {(7, 0), (-7, 0)}
Answer: D
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List the elements in the set.The set of all positive integer powers of 3.
A. {1, 3, 9, 27, 81, 243, ...} B. {1, 8, 27, 64, 125, ...} C. {3, 6, 9, 12, 15, ...} D. {3, 9, 27, 81, 243, ...}
Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: 1, -1, and 4 - 2i
A. f(x) = x4 - 8x3 + 19x2 + 8x - 20 B. f(x) = x4 - 8x3 + 19x2 + 8x + 20 C. f(x) = x4 + 8x3 + 19x2 + 8x - 20 D. f(x) = x4 + 8x3 + 19x2 + 8x + 20
Solve. Give your answer as a mixed numeral.Brian was training to run a marathon. During the three-day period before the race he decided that he would train for a total of 11 hours. If he trained for 3
hours on the first day and 3
hours on the second day, how many hours would he need to train on the third day?
A. 3
hr
B. 3
hr
C. 3
hr
D. 4
hr
Find 
where 
and 
by using the
matrix relative to and 
.
What will be an ideal response?