Which statements are correct regarding the properties of trapezoids? check all that apply.
the diagonals of an isosceles trapezoid are congruent.
the bases of a trapezoid are parallel.
the adjacent sides of a trapezoid are congruent.
base angles of a trapezoid are congruent.
the diagonals of a trapezoid are perpendicular.

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)