Starting at home, jessica traveled uphill to the grocery store for 18 minutes at just 20 mph. she then traveled back home along the same path downhill at a speed of 60 mph.

what is her average speed for the entire trip from home to the grocery store and back?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables