1. The tide depth in a Pacific harbour from noon on March 1, 2012 to noon the next day can be modelled by the cubic function f(t) = 0.001+ - 0.061+ 0.870t +0.315 where fis the tide depth in metres and t is the number of hours after noon. Determine the tide depth at 10:00 on the second day.

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?