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Vlada [557]
2 years ago
10

A grocery store polls every twentieth customer to determine if they are satisfied with the cleanliness of the store. Forty custo

mers are surveyed, and 26 are satisfied. What conclusion can be drawn for the 800 daily customers?
Mathematics
1 answer:
Helga [31]2 years ago
4 0
26/40=65% of customers
65% of 800 customers=520 who think the store is clean enough
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Step-by-step explanation:

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Which are the solutions of x2 = –7x – 8?
vovangra [49]

Answer:

The solutions are:

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Step-by-step explanation:

We have the following quadratic equation

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Now we use the quadratic formula to solve the equation

For an equation of the form ax ^ 2 + bx + c = 0 the quadratic formula is:

x=\frac{-b\±\sqrt{b^2-4ac}}{2a}

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Then:

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x=\frac{-7\±\sqrt{17}}{2}

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