Point moves in the plane so that the product of the two dimensions from the two lines is 3x-4y + 1 = 0, x + 4y-7 = 0 equals 144/28. Prove that the geometrical point of the point is a hyperboloid and find an approximate linear equation

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e. g. 98.7654). x f(x) 0 1 2 3

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.