5. In AABC, ZA is a right angle and m2B= 60. If AB = 20 ft, find BC. If necessary, round your answer to the nearest tenth.
A) 10 ft
B) 40ft
C) 20 √ 3 ft
D) 40 √ 3/3 ft

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =

Change negative exponents to positive. then solve. round to four decimal places