Haruto simplified the value below. csc(19pi/4)=sqrt2. Which statement explains whether Haruto is correct. A. Haruto is correct because the angle is coterminal with 3pi/4 and the reference angle is pi/4 B. Haruto is correct because the angle is coterminal with pi/4 which is also the reference angle. C. Haruto is not correct because the angle is coterminal with 3pi/4 and csc(3pi/4)=-1/sqrt2= -sqrt2/2 D. Haruto is not correct because the angle is coterminal with pi/4 and csc(pi/4)=1/sqrt2=sqrt2/2

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.

Simplify. 3(4+4x) (type your answer in with no spaces)

Amayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample