A wire it attached to a tree that is 4ft above the ground, if the angle formed at the base of the wire is 70, what is the length of the wire?

What is the approximate circumference of the circle shown below?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

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.