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Alisiya [41]
3 years ago
5

What angle would you need on a pie graph for a section that represented 25% of the

Mathematics
1 answer:
stich3 [128]3 years ago
6 0

Answer: C

Step-by-step explanation:

Use proportion:

360:100=x=25

100x=25*360

x=360/4

x=90

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Answer:

Option b) is correct.

The completed factor of given expression is  2(x-2)(x+2)(x^2+4)

Step-by-step explanation:

Given expression is 2x^4-32

To find the completed factor for the given expression:

2x^4-32:

Taking the common number "2" outside  to the above expression we get

2x^4-32=2(x^4-16)

Now rewritting the above  expression as below

=2(x^4-2^4)  (since 16 can be written as the number 2 to the power of 4)

=2((x^2)^2-(2^2)^2)

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Here a=x^2 and  b=2^2

Therefore it becomes

=2(x^2+2^2)(x^2-2^2)

=2(x^2+4)(x^2-2^2)  

The above expression is of the form a^2-b^2=(a+b)(a-b)

Here a=x and  b=2

Therefore it becomes

=2(x^2+4)(x+2)(x-2)  

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Therefore =2(x+2)(x-2)(x^2+4)  

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Option b) is correct.

The completed factor of given expression is  2(x-2)(x+2)(x^2+4)

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