Find the zeroes of the polynomials 3t^2 - 7t, 2root5y^2 + y - 3root5

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

Which of the following is the major negative aspect of crossover designs for research studies? a. prohibitive cost b. residual effects c-subject drepout d. incomplete randomization e. large sample size required