Question

F(x)=30(0.85)^(x) find derivative

Answer 1

`\cfrac{d}{dx}[a^x]\implies a^x\ln(a) \\\\[-0.35em] ~\dotfill\\\\ f(x)=30(0.85)^x\implies \cfrac{d}{dx}[30(0.85)^x]\implies 30\cfrac{d}{dx}[0.85^x]\implies 30\cdot 0.85^x\ln(0.85)`