Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 15 people took the trip. She was able to purchase coach tickets for $340 and first class tickets for $1280. She used her total budget for arfare for the trip, which was $10,740 How many first class
tickets did she buy? How many coach tickets did she buy?
number of first class tickets bought =

What is the solution set of the quadratic inequality x^2-5< or equal to 0

What is the value of x in the following equation? -3x-2=2x+8

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to