When visiting his parents, tyler drives at an average speed of 42 km/h through urban areas, and at an average speed of 105 km/h along the motorway. his journey usually takes him 2.5 hours. one day when there is a fog, he sets off 1 hour early and only manages to average 28 km/h in urban areas and 60 km/h on the motorway. he arrives 30 minutes late. how long was tyler journey?

Consider the following function. which of the following graphs corresponds to the given function? w. x. y. z. a. z b. y c. x d.

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?

The function h (t) = -16t squared + 28t + 500 represents the height of a rock t seconds after it's propelled by a slingshot what does h (3.2) represent?