An article presented data on compressive strength x and intrinsic permeability y of various concrete mixes and cures. Summary quantities are , , , , , and . Assume that the two variables are related according to the simple linear regression model. Round your answers to 3 decimal places. (a) Test for significance of regression using . Choose your answer in accordance to the item a) of the question statement Reject the null hypothesis. (b) Estimate . Enter your answer in accordance to the item b) of the question statement . (c) In this model, what is the standard error of the intercept

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

whats the question?

step-by-step explanation:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.