3 years ago

Given the expression below, which statement is true about the

Mathematics

1 answer:

artcher [175]3 years ago

3 0

Answer:

your correct answer is 3 no first ,

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Step-by-step explanation:

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3 years ago

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Vika [28.1K]

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The maximum cost is 41 dollars per necklace.

Step-by-step explanation:

The average cost in dollars/necklace is given by :

$C(x)=0.5x^2-7x+65.5$ .....(1)

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$\dfrac{d}{dx}(0.5x^2-7x+65.5)=0\\\\x-7=0\\\\x=7$

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3 years ago

Needs help with both

a_sh-v [17]

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d for 1 and a for 2

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