Lines l, m, and n are perpendicular bisectors of triangle PQR and meet
at T. If TQ=2x, PT=3y-1, and TR=8, find y.

What is the value of x in the this question ?

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.