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3 years ago

What is the cirumference of a circle with a diameter of 4.1 cm

Mathematics

1 answer:

nordsb [41]3 years ago

5 0

Answer:

C = 12.88

Step-by-step explanation:

If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter.

C = π d = π · 4.1 = 12.88053cm

Glad to help ya!!

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Multiply. Check picture.

VashaNatasha [74]

The answer is $3x^4-13x^3-x^2-11x+6$ .

Solution:

Use algebraic identity: $a^m\times a^n=a^{m+n}$

For example: $x^2\times x=x^{2+1}=x^3$

Given expression $(x^2-5x+2)$ and $(3x^2+2x+3)$ .

To multiply these equations.

$(x^2-5x+2)\times(3x^2+2x+3)$

$=x^2(3x^2+2x+3)-5x(3x^2+2x+3)+2(3x^2+2x+3)$

$=(3x^4+2x^3+3x^2)+(-15x^3-10x^2-15x)+(6x^2+4x+6)$

$=3x^4+2x^3+3x^2-15x^3-10x^2-15x+6x^2+4x+6$

Combine like terms together.

$=3x^4+(2x^3-15x^3)+(3x^2-10x^2+6x^2)-15x+4x+6$

$=3x^4-13x^3-x^2-11x+6$

$(x^2-5x+2)\times(3x^2+2x+3)=3x^4-13x^3-x^2-11x+6$

Hence the answer is $3x^4-13x^3-x^2-11x+6$ .

3 0

3 years ago

What is the greatest common factor of 28 and 46?

tester [92]

28=2*2*7=2²*7; 46=2*23=>the greatest common factor is 2

8 0

3 years ago

Read 2 more answers

Which of the following expressions could be used to estimate the difference between -12.34 and -4.8? -12 - 5 -12 + 5 -12 - 4 -12

Sphinxa [80]

This is your answer

-12 - 5 (first one)

hope that helps

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3 years ago

Read 2 more answers

What is the answer to this question x²-8x+16=0

vovangra [49]

(x+4)(x-4) =0

x +4 = 0
x = -4

x - 4 =0
x = 4

answers , x = -4 and x=4

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3 years ago

When five is added to three more than a certain the result is 19 what is the number?

gulaghasi [49]

Answer: It should be 11

Step-by-step explanation:

11 + 3 = 14 14 is three more than 11 and when you add 5 you get 19

8 0

3 years ago