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Taya2010 [7]
2 years ago
15

Can someone help me? I’ll reward points + brainalist

Mathematics
2 answers:
Vaselesa [24]2 years ago
6 0

Answer:

c) 31 in.

Step-by-step explanation:

circumference = 2 π r

r = 5 in

π = 3.14

C = 2 x 3.14 x 5

C = 31.4

round to the nearest whole number

31.4 = 31

posledela2 years ago
5 0

Step-by-step explanation:

THE ANSWER IS C. 31 INCHES

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Serhud [2]

Answer: (6a + 5b) • (6a - 5b)

 

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "b2"   was replaced by   "b^2".  1 more similar replacement(s).

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (36 • (a2)) -  52b2

Step  2  :

Equation at the end of step  2  :

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Step  3  :

Trying to factor as a Difference of Squares :

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Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

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        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  36  is the square of  6

Check : 25 is the square of 5

Check :  a2  is the square of  a1

Check :  b2  is the square of  b1

Factorization is :       (6a + 5b)  •  (6a - 5b)

Final result :

 (6a + 5b) • (6a - 5b)

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