The Heat Diffusion Equation is a partial differential equation containing partial derivatives of both space coordinate variables and time. In general, how many boundary and initial conditions are required to solve the HDE

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.