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bezimeni [28]
3 years ago
14

Please help thank you!❤️

Mathematics
1 answer:
aniked [119]3 years ago
8 0

Answer:

F

Step-by-step explanation:

because 1 dozen cost $1

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Hannah's necklace is 10 1/5 inches long. Erin's necklace is 2 2/3 times as long as Hannah's. Abot how long is erins necklace
harina [27]

<u>Erin's Necklace is 47.6 inch long.</u>

Step-by-step explanation:

Hannah 's necklace is 10 1/5 inches long which means =  (50+1)/5 =<u> 51/5</u>

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Solving for this :

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<u>Erin's Necklace is 47.6 inch long.</u>

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Verify sin^4x − sin^2x = cos^4x − cos^2x is an identity
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<h2>It's an identity</h2>

Step-by-step explanation:

\sin^4x-\sin^2x=\cos^4x-\cos^2x\\\\L_s=\sin^4x-\sin^2x=\sin^2x(\sin^2x-1)=\sin^2x(-\cos^2x)=-\sin^2x\cos^2x\\\\R_s=\cos^4x-\cos^2x=\cos^2x(\cos^2x-1)=\cos^2x(-\sin^2x)=-\sin^2x\cos^2x\\\\L_s=R_s\qquad\bold{CORRECT}

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4 0
3 years ago
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