Show all your work. Indicate clearly the methods you use. because you will be graded on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. A study of college freshmen's study habits found that the time (in hours) that freshmen use to study each week follows a distribution with a mean of 7-2 hours arid a standard deviation of 5.3 hours. Can you calculate the probability that a randomly chosen freshman studies more than 9 hours? If so. do it. If not. explain why not. What is the shape of the sampling distribution of the mean for samples of 55 randomly selected freshmen? Justify your answer. What are the mean and standard deviation for the mean number of hours spent studying by an SRS of 55 freshmen? Find the probability that the average number of hours spent studying by an SRS of 55 students is greater than 9 hours. Show your work.

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19

x = 25/2304

step-by-step explanation:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²