Find the missing length of the triangle.
1.5 cm
a
1.2 cm
a =
cm

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29