The length of rod pr is adjusted to 16 feet. if the width pq remains the same, what is the approximate new height of qr?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

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

Who long does it take to drive 150 miles at 45 miles per hour