You randomly select 30 Virginia license plates. Let X denote the number of vanity plates. The probability that exactly four license plates are vanity plates is . The probability that at least nine license plates are vanity plates is . The expected value of X is , and the standard deviation of X is

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

step-by-step explanation:

the triangles are similar. therefore the corresponding sides are in proportion:

              cross multiply

            divide both sides by 32

n=1.75+1.75

step-by-step explanation:

3.5/2=1.75