How to know if you can replace your laptop battery?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

Solve the triangle. a = 21°, c = 105°, c = 5