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Scrat [10]
3 years ago
14

The circumstance of a circle is represented by 2 pie r. If the radius of the circle is double, then the circumference is

Mathematics
1 answer:
yarga [219]3 years ago
7 0

The circumference of the circle is given by C = 2 π r

If the radius of the circle is doubled, then new radius will be r' = 2r.

And new circumference will be C' = 2·π·(2r) = 2·(2 π r) = 2·C

It is clearly visible that new circumference is twice the original circumference i.e. C' = 4 π r

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What are the numerical measures of each angle in the diagram? 1 and 3 measure degrees. 2 and 4 measure degrees. (3x - 1)º (2x +
Tanya [424]

Answer:

Step-by-step explanation:

In the diagram shown, the measure of angle 1 is oppositely directed to angle 2 and oppositely directed angles are equal.

Hence <1 = <3

Given < 1 = 3x-1 and <3 = 2x+9

Hence 3x-1 =  2x+9

collect like terms

3x-2x = 9+1

x = 10°

Since <1 = 3x-1

on substituting x = 10

<1 = 3(10)-1

<1 = 30-1

<1 = 29°

<1+<2 = 180 (angle on a straight line)

29+<2 = 180

<2 = 180-29

<2 = 151°

Similarly, on substituting x = 10 into <3

<3 = 2x+9

<3 = 2(10)+9

<3 = 20+9

<3 = 29°

<3+<4 = 180 (angle on a straight line)

29+<4 = 180

<4 = 180-29

<4 = 151°

3 0
3 years ago
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What is the opposite of |-74|?
Svetlanka [38]

Answer:

It's 74

Step-by-step explanation:

It will be positive 74 i.e, +74

3 0
3 years ago
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60 POINTS!!
Step2247 [10]

Answer:

A 144

B no

Step-by-step explanation:

Decagon is a 10 sided figure

interior angle = 180 (n-2)/n where n=10

                         180*(10-2)/10

                           180*8/10

                           144

To tessellate, the angle must divide evenly into 360

360/144= 2.5

This is not evenly so it will not tessellate

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Answer:

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Step-by-step explanation:

Divide using Synthetic division

dividing by ( x - 3)

Using 0 to represent the x- term

3 |  1  0   4

     ↓ 3    9

        +     +

   ------------------

     1   3    13 ← remainder

Thus

\frac{x^2+4}{x-3} = x + 3 + \frac{13}{x-3}

 

8 0
3 years ago
WHAT expression shows 28 + 35 as the product of their greatest common factor and the sum of two whole numbers with no common fac
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