3. Consider the function f(x, y) = 4x2 + 4y2 - 4x + 4 (i) Let D = {(x, y) E R2 | 22 + 4y? < 4} and assume f(x, y) is defined on D. Com-
pute the global maxima and global minima and discuss their existence (use the Lagrange Multipliers)

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11