I need help please. I don't quite understand it! "How are we ever going to build this bridge?" asks Omar looking out across the raging river."Let's start by finding the distance to the big rock on the other side."

Melissa replies. Moving 100 meters along the river, Melissa looks back and measures the angle between Omkar and the big rock: 33°. Melissa then instructs Omar to measure the angle between Melissa and the big rock.

From his vantage point, Omar sees an angle of 98° between Melissa and the big rock.

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Acaterer knows he will need 60, 50, 80, 40 and 50 dinner napkins on five successive evenings. he can purchase new napkins initially at 25 cents each, after which he can have dirty napkins laundered by a fast one-day laundry service (i.e., dirty napkins given at the end of the day will be ready for use the following day) at 15 cents each, or by a slow two-day service at 8 cents each or both. the caterer wants to know how many napkins he should purchase initially and how many dirty napkins should be laundered by fast and slow service on each of the days in order to minimize his total costs. formulate the caterer’s problem as a linear program as follows (you must state any assumptions you make): a. define all variables clearly. how many are there? b. write out the constraints that must be satisfied, briefly explaining each. (do not simplify.) write out the objective function to be minimized. (do not simplify.)