Aroom is a square with walls 40 ft long each. if they hang the lights around the perimeter of the ceiling and then from the opposite corners to opposite corners to create an x on the ceiling, how many feet of lights are needed? use special triangles to answer both in the exact feet and to the nearest foot. if lights come in 30 ft strands. how many strands are needed?

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.