3 years ago

Peter spent $54.90 on shirts, $64.95 on shoes, and $7.55 for a tie. Which is the most

Mathematics

1 answer:

Varvara68 [4.7K]3 years ago

6 0

Answer:

I'd say about 127.

Step-by-step explanation:

54.90 + 64.95 is probably about 120, and plus the 7.55 is about 127.

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3 years ago

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trasher [3.6K]

The function is graphed as shown below

Part A:

We use the formula $- \frac{b}{2a}$ to find the vertex of the function. A quadratic function of the form of $a x^{2} +bx+c$ and equating this form to the given function $- x^{2} +20x-75$ , we have
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Part B:

We can find solution to this equation by factorising

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$-( x^{2} -20x+75)=0$
$x^{2} -20x+75=0$
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3 years ago