Plot the graph of the function f in an appropriate viewing window.
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Solve the problem.How many months are there in 30 years?
A. 370 months B. 52 months C. 42 months D. 360 months
Solve the absolute value equation. + 3 = 7
A. no solution
B. x = - , -
C. x = - , -
D. x = - , -
x? = ?4x ? 5y, y? = ?x
Solve the first-order linear system.
Solve the linear programming problem.A doctor has told a sick patient to take vitamin pills. The patient needs at least 6 units of vitamin A and at least 6 units of vitamin B. The red vitamin pills cost each and contain 1 unit of A and 2 units of B. The blue vitamin pills cost
each and contain 2 units of A and 1 unit of B. To avoid indigestion, the patient should take no more than 4 red pills and no more than 7 blue pills. How many pills should the patient take each day to minimize costs?
A. 4 red and 7 blue B. 2 red and 2 blue C. 4 red and 1 blue D. 0 red and 6 blue