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3 years ago

3, 1-을6. +9. 1-(급+음12. 37 -27

Mathematics

1 answer:

umka21 [38]3 years ago

6 0

Answer:

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Help quick please help hep

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Answer:

Step-by-step explanation:

There are 4 people that are 27 and 4 people that are 29. Both are older than 26.

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3 years ago

A high school teacher grades a math test. She wants to see the numerical

suter [353]

to see quick score she must use a pie chart

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3 years ago

Shortern this expression pls

pogonyaev

Answer:

$c =\frac{8}{3}$

Step-by-step explanation:

Given

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}}$

Required

Shorten

We have:

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}}$

Rationalize

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7} * \frac{4 + \sqrt 7}{4 + \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}*\frac{4 - \sqrt 7}{4 - \sqrt 7}}$

Expand

$c = \sqrt{\frac{(4 + \sqrt 7)^2}{4^2 - (\sqrt 7)^2}} + \sqrt{\frac{(4 - \sqrt 7)^2}{4^2 - (\sqrt 7)^2}$

$c = \sqrt{\frac{(4 + \sqrt 7)^2}{16 - 7}} + \sqrt{\frac{(4 - \sqrt 7)^2}{16 - 7}$

$c = \sqrt{\frac{(4 + \sqrt 7)^2}{9}} + \sqrt{\frac{(4 - \sqrt 7)^2}{9}$

Take positive square roots

$c =\frac{4 + \sqrt 7}{3} + \frac{4 - \sqrt 7}{3}$

Take LCM

$c =\frac{4 + \sqrt 7 + 4 - \sqrt 7}{3}$

Collect like terms

$c =\frac{4 + 4+ \sqrt 7 - \sqrt 7}{3}$

$c =\frac{8}{3}$

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3 years ago

Find the value of the function for θ. sin(45°) = ? A) 1/2 B) √2/2 C) √3/2

Marysya12 [62]

The correct answer is B

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3 years ago

Read 2 more answers

A Board Is 3 yards and 1 foot long. How long will the board be if 56 inches are cut from one end?

TiliK225 [7]

The answer would be 64 inches or 5 feet 4 inches.
3 yards is equal to 108 inches and 1 foot is equal to 12 inches which equals 120 inches
120-56=64

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3 years ago

Read 2 more answers

3, 1-을6. +9. 1-(급+음12. 37 -27​

3, 1-을6. +9. 1-(급+음12. 37 -27