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Sketch one cycle if the cosine function y=2cos2theta

Factor the polynomial expression x6 – x3 – 20

Were only 64 seats. the remaining 6 students had to travel in a separate van. the equation 2b + 6 = 70 represents the given scenario. what does b represent? the number of buses the number of vans the number of students who rode on each bus the total number of students going to the football game