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4 years ago

Hy! (√2+1)²+(3-√3)²-(√5+1)²=??? Thank yours!:*

1 answer:

4 0

$(\sqrt2+1)^2+(3-\sqrt3)^2-(\sqrt5+1)^2=\\
2+2\sqrt2+9-6\sqrt3+9-(5+2\sqrt5+1)=\\
20+2\sqrt2-6\sqrt3-5-2\sqrt5-1=\\
14+2\sqrt2-6\sqrt3-2\sqrt5$

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3 years ago

Brainliest is given to the correct answer!

OlgaM077 [116]

Answer:

a. $p = 2\pi r + 8r$

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Step-by-step explanation:

a. Radius of semicircle (r) = r

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Length of rectangle (l) = 2*diameter of semicircle = 2*2r = 4r

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Note: the two semicircles of the track = 1 full circle

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$p = 2\pi r + 8r$

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Divide both sides by (2π + 8)

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4 years ago

Tiffany's allowance is reduced $1.25 every time she forgets to clean her room. If she forgets to clean her room 7 times this mon

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Answer:

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Step-by-step explanation:

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3 years ago

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Add the following numbers. -6 + 5 =

romanna [79]

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3 years ago

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Which choice is more than 11 but less than 12?

kumpel [21]

Let
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we know that
11²=121
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then
x² must be greater than 121 and less than 144

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if x=√115
then
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then
x²=121-------> is not greater than 121

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if x=√136
then
x²=136-------> is greater than 121 and is less than 144------> is ok

case d) √150
if x=√150
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x²=150------> is not less than 144

therefore

the answer is
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3 years ago

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