Need ! super ! lewis county, washington, has a guideline that new roads should not exceed a 15% grade, or a 15 foot rise over a horizontal distance of 100 feet. a proposed roadway rises 41 feet over 254 feet horizontally. find the grade of the proposed roadway. does it meet the county's guideline?

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Let u = {q, r, s, t, u, v, w, x, y, z} a = {q, s, u, w, y} b = {q, s, y, z} c = {v, w, x, y, z}. list the elements in the set. a ∩ (b ∪ c)a) {q, s, w, y}b) {q, y, z}c) {q, s, u, w, y, z}d) {q, r, w, y, z}