Which expression is a factor of both x^2-9 and x^2+8x+15

Determine whether the samples are independent or dependent. upper a data set includes the morning and evening temperature for the lasta data set includes the morning and evening temperature for the last 90 days.90 days.

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?