Which of the following statements is always true when parallel lines are cut by a transversal?
(a) the sum of the degree measure of complementary angles is 180 degrees.
(b) the sum of the degree measure of corresponding angles is 180 degrees.
(c) corresponding angles are congruent.
(d) the angles in a vertical pair are acute

Sketch one cycle if the cosine function y=2cos2theta

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project