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2 years ago

Need help I’m stuck

Mathematics

1 answer:

bezimeni [28]2 years ago

8 0

The answer should be B
inside the first parenthesis, 7 on the top and 7 on the bottom cancel each other, so you have (6/5)^2
inside the second parenthesis, 7^0=1, the bottom 5^-3 moves to the top and becomes 5^3, (5^3)=5^9, 5^9 and 5^-9 makes 5^0, which is 1
so all you have left is (6/5)^2, which is 36/25

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Step-by-step explanation:

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Answer:

Option A is the correct option.

Step-by-step explanation:

${a}^{2} + {b}^{2} - 2ab \: \cos \: c \: = {c}^{2} \\ a = 4 \\ b = 5 \\ c = 2 \\ \\ 2ab \: cos \: c = {a}^{2} + {b}^{2} - {c}^{2} \\ \: \: \: \: \: \: \: \: = {(4)}^{2} + {(5)}^{2} - {(2)}^{2} \\ \: \: \: \: \: \: \: \: = 16 + 25 - 4 \\ \: \: \: \: \: \: = 41 - 4 \\ \: \: \: \: \: \: = 37$

Hope this helps...

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2 years ago

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maks197457 [2]

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Masja [62]

Answer:

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Step-by-step explanation:

First, we need to find the area of one sticky note:

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Area of one sticky note:

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Now, we find the area of 9 sticky notes:

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Hope this helps! Have an amazing day!

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