Answer:
Eric can either charge $10 or $40 in order to break even.
Step-by-step explanation:
Eric has a summer lawn mowing business and the equation:
Models his total profit <em>p</em> by charging <em>x</em> dollars per lawn.
We want to determine what price Eric needs to charge in order to break even.
The price Eric charges to break even means that his total profit will be zero. Hence, we can let <em>p</em> = 0 and solve for <em>x</em>. Thu:
We can divide both sides by -3:
Factor:
Zero Product Property:
Solve for each case. Hence:
Therefore, Eric can either charge $10 or $40 in order to break even.
Answer: -1 ± <em>i</em>√35
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6
Step-by-step explanation:
From the quadratic equation,
X = -b ±√b² - 4ac
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2a
From the given equation, -3x² - x - 3 = 0
where a = -3, b = -1, c = -3
Now substitute for the values in the formula above
x = -(-1) ± √(-1)² - 4(-3)(-3)
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2(-3)
x = 1 ± √ 1 - 36
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-6
x = 1 ± √ -35
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-6
x = -1 ± <em>i√35 this is because it has a negative root.</em>
<em> ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻</em>
<em> 6</em>
<em> The answer is b</em>
Answer:
hope it helps you see the attachment for further information
sorry but my phone couldn't captured r=2
