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3 years ago

5

Write two different expressions to represent the perimeter of this square. What can you conclude from the two expressions? Expre

ss your answer in two or more complete sentences.

1 answer:

gregori [183]3 years ago

4 0

Answer:

4 * side = 4s is the perimeter

sum of all sides = s + s + s + s = 4s

Step-by-step explanation:

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Sin(cos^-1 x)<br><br> how to solve?

tatiyna

Answer:

$sin(cos^{-1}x)=\sqrt{1-x^2}$

Step-by-step explanation:

let us assume

$cos^{-1} x=\theta\\x=cos\theta\\$

now

$sin(cos^{-1}x)$ can be written as $sin\theta$

we know $sin^2\theta+cos^2\theta=1$

so $sin^2\theta=1-cos^2\theta$

$sin\theta=\sqrt{1-cos^2\theta}$

now from above equation we can say that

$sin\theta=\sqrt{1-x^2}$

$sin(cos^{-1}x)=\sqrt{1-x^2}$

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3 years ago

What is the volume of the right rectangular prism, in cubic centimeters? A prism has a length of 4 centimeters, width of 9 centi

siniylev [52]

Answer:

360

Step-by-step explanation:

length times width of the base then multiply by the height of the prism.

(4)(9)10

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3 years ago

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dimaraw [331]

Answer:

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Step-by-step explanation:

4/20 gives you $5 a piece

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10/65 gives you 6.50 per wand

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4 years ago

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Step-by-step explanation:

We know that Rob was driving 63 mph which is 18 miles faster than pigeons, therefore you subtract to get the answer.

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4 years ago

Read 2 more answers