What size sample would you need to estimate the mean amount of liquid poured into a large glass with 95% confidence with a margin of error of no more than 0.5 ounces? The standard deviation is usually 1.2 ounces. (Hint: Start by finding an approximate using the corresponding z ∗ value.)

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

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step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.