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eimsori [14]
3 years ago
12

An ice cream stand uses the expression 2+ 0.5x to determine the cost in Dollars of an ice cream cone that has x amount of scoops

of ice cream
how much does an ice cream with 5 scoops cost
Mathematics
1 answer:
Charra [1.4K]3 years ago
7 0
4.5 is the answer  (which may be $4.50 since we are speaking in terms of money)
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Given a polynomial f(x), if (x − 4) is a factor, what else must be true?
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Step-by-step explanation:

<em>The </em><em>Remainder Theorem</em><em> states that when you divide a polynomial f(x)  by a linear factor  (x-a) , where a  is a constant, the remainder is f(x)  evaluated at x=a</em>

<em>Moreover, according to the </em><em>Factor Theorem</em><em>, an extension of the Remainder Theorem, if the remainder of the function f(x) is </em><em>0</em><em> when evaluated at x=a , then (x-a)  is said to be a factor of the polynomial f(x)</em>

Given the 2 theorems above, it follows that if (x-4)  is a factor of f(x) , then the remainder is equal to 0 when f(x) is evaluated at x=4

Which means f(4)=0

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