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Gelneren [198K]
2 years ago
6

(x-1)^2+(2-x)^2-3(x-5)*(x-5)

Mathematics
1 answer:
Natali5045456 [20]2 years ago
8 0

Answer:

-x^2+24x-70

Step-by-step explanation:

(x-1)^2+(2-x)^2-3(x-5)*(x-5)\\=> (x - 1)^2 + (2 - x)^2 - 3(x - 5)^2\\=> x^2 - 2x + 1 + 4 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 2x + 5 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 6x + 5 + x^2 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x^2 - 10x + 25)\\=> 2x^2 - 6x+5  - 3x^2+30x-75\\=> -x^2 - 6x + 5 + 30x - 75\\=> -x^2 + 24x + 5-75\\=> -x^2+24x-70

Formula used =

(a-b)^2 = a^2+ 2ab + b^2

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Fofino [41]

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Answer:

  1.1.1  sin(241°) = -√t

  1.1.2  cos(61°) = √(1 -t)

Step-by-step explanation:

<u>Given</u>:

 sin(61°) = √t

<u>Find</u>:

  1.1.1  sin(241°)

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<u>Solution</u>:

1.1.1  sin(180° +x) = -sin(x)

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2 years ago
For every 24 minutes of television there are 6 minutes of commercials how many minutes of a commercial are there 1 hour and 36 m
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3 years ago
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I'm afraid I don't see the models you have written about although I do know the answer. (C= Courtney's age, S= Shilo's age)

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