a binomial event has n=20 trials. the probability of success for each trial is 0.20. let x be the number of successes of the event during the 20 trials. what is the probability that x is at least 12?

a 0.0001017
b 0.9998983
c 0.848
d 0.152

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?