Consider the sets below. U= (x x is a real number)
A= (x>x is an odd integer)
R= (x| x=3, 7, 11, 27}
Is Rc A?
O yes, because all the elements of set A are in set R
O yes, because all the elements of set R are in set A
O no, because each element in set A is not represented in set R
O no, because each element in set R is not represented in setA

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Find the cosine function that is represented in the graph.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?