Decide whether the rates are equivalent 9 miles in 3 hours 27 miles in 6 hours

The value of cos 30° is the same as which of the following?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation.