Hope it helps 10 mins on the elliptical and 12 on the treadmil
Answer:
;
is even and greater than zero.
The absolute value function 
Step-by-step explanation:
The power function;
;
is even and greater than zero, is symmetric with respect to the positive y-axis.
As
and as 
The absolute value function
also has the same end behavior.
The remaining functions in the options provided do not exhibit this end behavior.
See graph in attachment.
Answer:
One tailed
To conclude if there is an increase in the mean gas mileage due to new type of tire.
Step-by-step explanation:
We are given the following in the question:
The manufacture wants to compare increase in the mean gas mileage.
Population mean = 32 miles per gallon
Thus, the manufacture could carry a hypothesis test to compare mean.
A one tailed test (z-test or t-test) based on the information can be used to compare the increase in mean.
Thus,
The automotive manufacturer should perform a one tailed hypothesis test to conclude if there is an increase in the mean gas mileage due to new type of tire.