Flor's house is 3 miles west and 4 miles north of the park. Joey's house is 2 miles east and 8 miles north of the park. To the nearest tenth of a mile,
what is the distance between their houses?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Combine like terms to make a simpler expression 3z+z

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