I differentiated this chart in my head and equated it to zero to find the maxima. Then I put back the X into the equation to find out at what stage of life I’m standing at. Apparently I’m in College but dunno why I’m doing a PhD 🤦🏻♂️
Recently the most used maths skills for me is calculating the optimum discount and cash back.
Yet you wouldn't be able to understand what the spreadsheet means without the previous knowledge. 👌
the only math im using: counting how many foods that i can have daily ❤