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Paladinen [302]

3 years ago

7

Felipe is saving money to buy a game. So far he has saved $30, which is five-sixths of the total cost of the game. How much does

the game cost?

1 answer:

Rzqust [24]3 years ago

3 0

Answer:

25

Step-by-step explanation:

ok so the game cost 25 you have to 5÷6×30=25 hooe its right

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IceJOKER [234]

Answer:

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Find the missing side length and round it to the nearest tenth please :)

Alchen [17]

Answer:

171

Step-by-step explanation:

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1 year ago

Notation scientifique de 40075017

Temka [501]

Answer:

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Step-by-step explanation:

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5 0

3 years ago

(csc x - 1) (csc x + 1)

victus00 [196]

<h2>Explanation:</h2>

Here we have the following expression:

$(csc x - 1) (csc x + 1)$

So we need to extend this. Remember that the difference of squares tells us:

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So here:

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Thus:

$(csc x - 1) (csc x + 1)=csc^2x-1 \\ \\ \\ But: \\ \\ cscx=\frac{1}{sinx} \\ \\ \\ Then: \\ \\ csc^2x-1=\frac{1}{sin^2x}-1=\frac{1-sin^2x}{sin^2x}=\frac{cos^2x}{sin^2x}=cot^2x \\ \\ \\ Finally: \\ \\ \boxed{(csc x - 1) (csc x + 1)=cot^2x}$

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3 years ago