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Gnom [1K]
3 years ago
8

The following graph represents the cost and revenue functions for custom-made computers. How many computers have been sold at th

e break-even point? A graph has sales on the x-axis and cost times 100 on the y-axis. The cost line goes through (0, 5) and (12, 9). The revenue line goes through (0, 0) and (12, 9). The lines intersect at (12, 9). a. 12 b. 9 c. 5 d. 0
Mathematics
1 answer:
ludmilkaskok [199]3 years ago
8 0

Answer:

<h3>The answer is <em><u>A</u></em></h3>

Step-by-step explanation:

a.) 12

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Answer:

Step-by-step explanation:

This is a related rates problem from calculus using implicit differentiation. The main equation is going to be Pythagorean's Theorem and then the derivative of that. Pythagorean's Theorem is

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2x\frac{dx}{dt}+2y\frac{dy}{dt}=0 and dividing everything by 2 to simplify a bit:

x\frac{dx}{dt}+y\frac{dy}{dt}=0. Upon analyzing that equation, it looks like we need values for x, y, \frac{dx}{dt}, and \frac{dy}{dt}. And here's what we were given:

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BUT we can use the right triangle and the angle we were given to find both x and y. The problem we are looking to solve is to

Find \frac{dy}{dt} at the instant that \frac{dx}{dt} = .5.

Solving for x and y:

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8 0
3 years ago
What is the predecessor and successor of 9,852
sweet [91]

Answer:

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Successor: 9853

Step-by-step explanation:

The predecessor of a number is 1 less than it.

The successor of a number is 1 more than it.

PLS GIVE BRAINLIEST

5 0
3 years ago
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nordsb [41]

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A

Step-by-step explanation:

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ANSWER

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5 0
3 years ago
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