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3 years ago

Formula of circumference

Mathematics

2 answers:

Korvikt [17]3 years ago

6 0

Answer:

cimcumference = 2 × π × radius of circle ( 2πr)

Olin [163]3 years ago

6 0

Answer:

circumference = 2πr

hope it helps

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3 years ago

Which is the best description of the equivalency of the two expressions? Expression 1 Expression 2 5 x squared minus 2 x minus 4

lina2011 [118]

Answer:

The correct option is (D).

Step-by-step explanation:

The two expressions are:

$\text{Exp}_{1}=5x^{2}-2x-4+6x+3\\\\\text{Exp}_{2}=6x^{2}-6x+6-x^{2}+10x-7$

On simplifying both the expressions we get:

$\text{Exp}_{1}=5x^{2}+4x-1\\\\\text{Exp}_{2}=5x^{2}+4x-1$

Compute the value of both expressions for x = 2 as follows:

$\text{Exp}_{1}=5(2)^{2}+4(2)-1=27\\\\\text{Exp}_{2}=5(2)^{2}+4(2)-1=27$

The value of both expressions are same for x = 2.

Thus, the correct option is:

"They are equivalent because when x = 2, the two expressions have the same value."

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3 years ago

Boonk gang whole lotta

jeka94

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3 years ago

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Peter rolls a fair dice 114 times. How many times would Peter expect to roll a number greater than 1?

Natalka [10]

Answer:

A dice of six faces has 5 numbers bigger than 1 (from 2 to 6).

Then, the number Peter is expecting is : 114 x (5/6) = 95 (times)

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3 years ago

Need some math help!!! Factor the polynomial by grouping: 12p^3 − 21 p^2 + 28p − 49

Andru [333]

Answer:

$\left(4p-7\right)\left(3p^2+7\right)$

Step-by-step explanation:

$12p^3-21p^2+28p-49$

$\left(12p^3-21p^2\right)+\left(28p-49\right)$

$7\left(4p-7\right)$

$3p^2\left(4p-7\right)$

$7\left(4p-7\right)+3p^2\left(4p-7\right)$

$\left(4p-7\right)\left(3p^2+7\right)$

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3 years ago

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Formula of circumference​

Formula of circumference