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Liono4ka [1.6K]
2 years ago
13

Find the area and the circumference of a circle with radius 2ft .

Mathematics
1 answer:
zepelin [54]2 years ago
8 0

Answer:

Area & Circumference = 12.56ft

Step-by-step explanation:

The formula for area of a circle is πr^2

r = 2

π = 3.14

(3.14) x (2^2)

(3.14) x (4) = 12.56

The formula for circumference of a circle is 2πr

r = 2

π = 3.14

2 x (3.14) x 2

(3.14) x (4) = 12.56

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Maslowich

Answer: the answer is 3

Step-by-step explanation:

An increase of 100% in the value of (rh) means the value doubles. When that doubled value is squared, the new area is 4 times the old area.The question asks how many times GREATER the new A is than the old A. 4 times AS LARGE AS is a 300% INCREASE, which is 3 TIMES LARGER THAN.So the grammatically correct answer is 3 

3 0
2 years ago
What is the solution to -3/4x
zubka84 [21]

Answer:

3x/4

Step-by-step explanation:

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5 0
3 years ago
A2-b2 ÷5a-5b factorise​
katrin2010 [14]

Answer:

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

1

:

           5a + 5b

Simplify   ———————

           a2 - b2

STEP

2

:

Pulling out like terms

2.1     Pull out like factors :

  5a + 5b  =   5 • (a + b)  

Trying to factor as a Difference of Squares:

2.2      Factoring:  a2 - b2  

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

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        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 :  a2  is the square of  a1  

Check :  b2  is the square of  b1  

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

Canceling Out :

2.3    Cancel out  (a + b)  which appears on both sides of the fraction line.

Final result :

   5 / a -b  

 

 

Step-by-step explanation:

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3 years ago
A can contains 12 fluid ounces of orange juice. How many pints of orange juice does the can contain
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Answer:

The answer is: 1,5 pints.

Step-by-step explanation:

I had this on an assignment

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How many grams is in 21 kg?
ArbitrLikvidat [17]

21000 grams

Hope it helps!

7 0
3 years ago
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