Which statement is not true about rational numbers a. repeating decimals and terminating decimals are rational numbers b. whole numbers are rational numbers c. only fractions are rational numbers d. integers, whole numbers , and natural numbers are rational numbers

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

If the value of cos330°is√3/2 then find cos 165°.

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)