Best Buy is giving you a free t. v. with purchase of a new refrigerator. The t. v. is 30 inches tall and 48 inches wide. How big is the tv, meaning how long is the diagonal of the television screen? Round your answer to the nearest inch.

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)