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madam [21]
3 years ago
15

a local bowling alley charges you a total of $5 for the first two bowling games and $2 per each additional game. let y be the de

pendent variable representing the total bowling cost and x be the independent variable representing the number of games. which shows a function rule that describes the situation?
Mathematics
1 answer:
Tcecarenko [31]3 years ago
7 0
That's wrong ^ the answer y=2(x-2)+5
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64 POINT QUESTION<br><br> √(5-2x) - √(2-x) = 1
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Answer:

x = 2 and x = -2

Step-by-step explanation:

The easiest way is to guess. We know that you can't have a square root of a negative number. This constrains x between negative infinity to 2. Testing 2 and -2, we see that it satisfy the equation.

The more systematic approach is shown below

\sqrt{5-2x}-\sqrt{2-x}=1 \\\sqrt{5-2x}-\sqrt{2-x}+\sqrt{2-x}=1+\sqrt{2-x} \\\sqrt{5-2x} = 1+\sqrt{2-x}

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x= -2, 2

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