While driving from his home to his workplace, chris has to pass through two traffic lights. the general probability of getting a red signal at the first traffic light (event a) is 36%. the general probability of getting a red signal at the second traffic light (event b) is 25%. the probability of chris getting a red signal at both traffic lights is 9%.

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.