The highway safety department wants to study the driving habits of individuals. a sample of 38 cars traveling on a particular stretch of highway revealed an average speed of 70.9 miles per hour with a standard deviation of 7.8 miles per hour. round to 4 decimal places. 1.calculate a 95% confidence interval for the true mean speed of all cars on this particular stretch of highway.

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x