Consider the cost function C(x) = 7x² + 14x + 25 (thousand dollars). a) What is the marginal cost at production level x = 5?
b) Use the marginal cost at x = 5 to estimate the cost of producing 5.25 units.

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

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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.

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