Regina’s work to find the surface area of a square pyramid from its net is shown below. A square pyramid. The square base has side lengths of 9.4 inches. The triangular sides have a height of 11.9 inches. Surface area of the pyramid = 4 (one-half (9.4) (12.8)) + 9.4 squared = 329 square inches What error did Regina make? She should have used One-half (9.4) (11.9) to represent the area of a single triangle. She should have multiplied all the terms inside the parentheses by 4 when she simplified. She should have used One-half (4.7) (12.8) to represent the area of a single triangle. She should have used a different collection of shapes as the net of the pyramid.

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?