Slope (m) = (y2 - y1) divided by (x2-x1)
(10-0)/(50 - 30)
10/20 = 1/2
Slope or m = 1/2.
The answer is A:
Because the only difference between the rest of the answer choices are the lower and upper quartiles, that is all you need to find. In order to do so you find the median for the first half (lower quartile) and then find the median for the second half. In this case it is 29 (Q1) and 58 (Q2)
34 degrees
The three angles all add up to a straight line, which is 180 degrees. One angle is 56 and one is marked as a right angle, so 90.
56+90+x=180
x=34
4/5 is rational. sqr(4)/5 is rational. pi is irrational and sqr(25)/4 is irrational