A car company uses the table below to show customers the approximate amount of gas used when a car has been driven a certain number of miles. Gas Use Miles driven Gallons of gasoline used 110 2.75 220 5.5 300 7.5 430 ? If the car always uses the same amount of gasoline each mile, how many gallons of gasoline would be needed to travel 430 miles? 9.5 10.75 13

If a is a nonzero real number then the reciprocal of a is

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Asalad dressing recipe calls for 1 teaspoon of vinegar and three tablespoons of olive oil to only make 1/3 of the recipe for a single portion how much of each ingredient would you need