2 years ago

Which number round to 4,100 when rounded to the nearest hundred

Mathematics

1 answer:

scoray [572]2 years ago

4 0

The answer would be B.

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2 years ago

A cement walkway of uniform width has been built around an in-ground rectangular pool. the area of the walkway is 1344 square fe

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6 feet.

Step-by-step explanation:

Dimensions of the Pool =80 feet long by 20 feet wide

Area of the walkway =1344 square feet.

If the width of the walkway=w

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$1344=(80+2w)(20+2w)-(80*20)\\1344=80*20+160w+40w+4w^2-80*20\\4w^2+200w=1344\\4w^2+200w-1344=0\\We factorize\\4(w^2+50w-336)=0\\4(w^2-6w+56w-336)=0\\w(w-6)+56(w-6)=0\\(w-6)(w+56)=0\\w-6=0$ or $ w+56=0\\w=6$ ft or $ w=-56$ \\Therefore, the width of the walkway , w=6 feet.$

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2 years ago

What polynomial identity will prove that 49-4=45

Svetach [21]

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2 years ago

Please help! Will mark brainliest! 20 points!

notsponge [240]

8 3

9 4

Get common denominators.

8(4) 3 (9)

9(4) 4 (9)

32 27

36 36

5/36

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3 years ago