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steposvetlana [31]

3 years ago

15

there are 90 chairs arranged for people to watch a band concert. if 75 chairs have people in them during the concert, what perce

ntage of the chairs are fiilled

1 answer:

sleet_krkn [62]3 years ago

5 0

Answer: 83.3%

Step-by-step explanation:

Simply you want to divide 75 by 90 and you will get 83.3%

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Step-by-step explanation:

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Verify sin^4x-sin^2x=cos^4x-cos^2x is an identity. Please dumb it down, i don't get this lesson.

Grace [21]

Answer:

Step-by-step explanation:

cos^2+sin^2 = 1 ( rule)

cos^4x-cos^2x simplify

- cos^2( -cos^2 +1 ) -cos^2 common

or -cos^2 ( 1-cos^2)

since cos^2 + sin^2 = 1

substitute : -cos^2 ( sin^2 )

substitute : -(1-sin^2 ) ( sin^2)

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hope it helps

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3 years ago

Polynomial: 3x^4 + 5x - 4; Divisor: x - 1

irina [24]

Answer:

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Step-by-step explanation:

You can use synthetic division for this problem since the divisor is in (x-a) form. The fraction is the remainder over the divisor.

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3 years ago