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DanielleElmas [232]

4 years ago

8

Four friends took Marci out to dinner for her birthday . The bill came to $94. If the four shared the cost equally , how much wa

s each persons share?

2 answers:

luda_lava [24]4 years ago

8 0

Answer: 23.50

Step-by-step explanation: Each Of The Friends Would Each Have To Pay $23.50 To Split The Bill. Have A Great Day!

miss Akunina [59]4 years ago

3 0

Answer:

23.5$ per person

Step-by-step explanation:

94$/4 friends=23.5$

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The correct option is D) $f(x) = x^3 + 2x^2 - 2x - 4$ .

Step-by-step explanation:

Consider the provided cubic function.

We need to find the equation having zeros: Square root of two, negative Square root of two, and -2.

A "zero" of a given function is an input value that produces an output of 0.

Substitute the value of zeros in the provided options to check.

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Substitute x=-2 in $f(x) = x^3 + 2x^2 + 2x - 4$ .

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Therefore, the option is incorrect.

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$f(x) = x^3 - 2x^2 - 2x - 4\\f(x) = (-2)^3 - 2(-2)^2 - 2(-2) - 4\\f(x) =-8-8+4-4\\f(x) =-16$

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Now check for other roots as well.

Substitute x=√2 in $f(x) = x^3 + 2x^2 - 2x - 4$ .

$f(x) = x^3 + 2x^2 - 2x - 4\\f(x) = (\sqrt{2})^3+2(\sqrt{2})^2 - 2(\sqrt{2}) - 4\\f(x) =2\sqrt{2}+4-2\sqrt{2}-4\\f(x) =0$

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Citrus2011 [14]

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