2 years ago

I need help with all of them

Mathematics

1 answer:

nydimaria [60]2 years ago

8 0

Answer:

Question 3: (D) All real numbers. Question 4: (B) y > 3.

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lisov135 [29]

Answer:

The price is x = $2.779

Step-by-step explanation:

From the question we are told that

The revenue is $y = - 20x^2 - 50 x + 200$

The cost of production is $y = 30 x - 10$

Generally at break even point the cost of production is equal to the revenue

$-20x^2 -50x + 200 = 30x-10$

=> $20x^2 +20 -210 = 0$

Using the quadratic formula to solve this equation we have that

x = $2.779

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