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wolverine [178]
2 years ago
10

(3x+1)^2-2(3x+1)(3x+5)^2+(3x+5)^2 ​

Mathematics
1 answer:
Savatey [412]2 years ago
6 0

Answer:

soln,

write the question

=9x^2+1-6x-2×9x^2+25+9x^2+25

=9x^2+1-6x-18x^2+25+9x^2+25

=9x^2-18x^2+9x^2+1+25+25-6x

=51-6x

if(3x+1)^2 mean that (3x+1)has power of 2 and u don't have to use the formula this is the answer

Step-by-step explanation:

it's just BODMAS method

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A bicycle wheel has a circumference of 62 inches. Find the diameter of the wheel. If necessary, round to the tenths place. A. 39
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Answer:

The answer to your question is        diameter  = 19.7 in

Step-by-step explanation:

Data

Circumference = 62 in

diameter = ?

Process

1.- Write the formula of Circumference, remember that circumference = perimeter.

    Perimeter = 2πr

2.- Equal the equation to the value given

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-Solve it for r

                            r = 62/2(3.14)

-Result

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3.- Find the diameter

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             diameter  = 19.7 in

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<span>Given
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