Annual sales for a clothing store are $270,000 and are increasing at a rate of 7% per year. Find out how much money is made in 3 years. Use the formula y=...

I am trying to find mathematical models used in Biology that uses a system of differential equations. I found the lotka-volterra model and Michaelis-Mente...

Earth orbits the sun at an average distance of about 150 million kilometres every 365.2564 mean solar days, or one sidereal year. What is the linear veloc...

I'm trying to solve a problem where I have a large set of data points. Each data "point" has 8 independent variables (input) and 1 dependent variable...

two right triangles both have equal hypotenuses and equal lengths of base (2m) are joined to make one triangle. The base of the new triangle is now 4 m (2...

How do you determine the significant figures for solving equations with radicals and exponents? For example, how do you evaluate $x = \sqrt{4.56^2 +1.23^2}$?

I know that the area of a circle, $x^2+y^2=a^2$, in cylindrical coordinates is $$ \int\limits_{0}^{2\pi} \int\limits_{0}^{a} r \, dr \, d\theta = \pi a^2 ...

A cone semi-vertex angle $\gamma$ is cut by a plane inclined at angle $\alpha$ to symmetry axis. Length of perpendicular on plane from the cone vertex is ...

I am wondering how can I find an initial state vector for this problem. If the air quality is good one day, it has 95% chance it will be good the next day...

My question is how to prove monotone convergence theorem for infinite series without more advanced technique like counting measure. I see this used a lot....