Given, P(x) = -0.02x³ + 0.01x² + 1.2x - 1.1
where, P(x) is profit in million dollars and x is amount in hundred thousands spent on advertisement.
Here, P(x)=2
∴2= - 0.02x³ + 0.01x² + 1.2x - 1.1
=>200= -2x³ + x² + 120x - 110
=>2x³ - x² - 120x + 310=0
=>x= -8.588, 2.9316 or 6.1564
but x cannot be negative.
∴x =2.9316 or 6.1564
The company should spend 2.9316 hundred thousands or 6.1564 hundred thousands if they wish the profit to be 2 million dollars.
Get Answers For Free
Most questions answered within 1 hours.