Assume that x is a binomial random variable with n=600 and p=0.3. use a normal approximation to find the following probabilities.
a. p (x> 180)
b. approximate the probability that x is greater than 70 and less than 90.
c. approximate the probability x = 80

The triangles are similar. what is the value of x? show your work.

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Arectangular garden is 5 feet long and 3 feet wide. a second rectangular garden has dimensions that are double the dimensions of the first garden. what is the percent of change in perimeter from the first garden to the second garden?