Graph the equations of the system. Then solve the system to find the points of intersection.
What will be an ideal response?
(8, 0), (-8, 0)
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Solve the problem.A merchant has coffee worth $40 a pound that she wishes to mix with 90 pounds of coffee worth $80 a pound to get a mixture that can be sold for $70 a pound. How many pounds of the $40 coffee should be used?
A. 30 lb B. 60 lb C. 15 lb D. 120 lb
Use counting to determine the whole number that corresponds to the cardinality of the set.A = {x?x ? N and 13 ? x ? 22}
A. n(A) = 10 B. n(A) = 36 C. n(A) = 35 D. n(A) = 8
Provide an appropriate response.A prime number has exactly 
factor(s).
A. 3 B. 1 C. 0 D. 2
Use the discriminant to find what type of solutions (two rational, two irrational, one rational, or two nonreal complex) each of the following equations has. Do not solve the equation.6x2 = -6x - 7
A. two nonreal complex solutions B. two irrational solutions C. one rational solution D. two rational solutions