What is the value of theta , if tan theta = -1/squareroot3

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true