You plan to conduct a survey to estimate the percentage of adults who use email. Find the number of adults who must be surveyed if you want to be 90% confident that the sample percentage is within two percentage points of the true percentage for the population of all adults. Assume that from a previous study it is determined that 94% of adults use email. Use formula n=(z a/2)^2 * P*Q/ E^2

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

92ft long and 48 wide resurface 2.75$