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Dmitry_Shevchenko [17]
2 years ago
10

Work out the circumference of the circle with a radius of 4

Mathematics
1 answer:
miv72 [106K]2 years ago
5 0

Answer:

8 π or 25.13

Step-by-step explanation:

To find the circumference of a circle when you are given the radius you must find the diameter first. The diameter is twice the radius so therefore the diameter is 8. Next you either leave the answer as 8 π or you solve and come out with 25.1327412. Hope this helped!!

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3+2(2p+4t) some one plz HELP ME.
makkiz [27]

Answer:

3+4p+8t

Step-by-step explanation:

We have been given an expression:

3+2(2p+4t)

We will simplify the equation:

Firstly, we will open the parenthesis by multiplying it with the 2 given outside of the parenthesis we get:

3+4p+8t

Since, we have two variables so it can not be further solved therefore,

This is the maximum simplification of the given expression.


3 0
3 years ago
⚠️⚠️⚠️⚠️BREAKING NEWS A METEOR IS COMING DIRECTLY TOWARDS EARTH THEY ONLY WAY TO STOP THIS METEOR IS BY ANSWERING THIS QUESTION
8090 [49]

The relation {(-1 , 3), (4 , 2), (-1 , 5)} is not a function ⇒ 2nd

Step-by-step explanation:

Let us revise the meaning of relation and function

  • The relation is a set of inputs and outputs
  • A function is a relation with one output for each input, that means every x has only one y
  • Ex: {(2 , 3) , (-1 , -2) , (3 , 2)} is a function because 2 has only 3 , -1 has only -2 and 3 has only 2, {(1 , 7) , (2 , -4) , (1 , -3)} is not a function because 1 has 7 and -3

The relation is a function if and only if every x has only one y

In {(0 , 0), (1 , 0), (2 , 0)}

∵ x = 0 has y = 0

∵ x = 1 has y = 0

∵ x = 2 has y = 0

∴ Every x has only one y

∴ {(0 , 0), (1 , 0), (2 , 0)} is a function

In {(-1 , 3), (4 , 2), (-1 , 5)}

∵ x = -1 has y = 3

∵ x = 4 has y = 2

∵ x = -1 has y = 5

∴ x = -1 has y = 3 and 5

∴ Not every x has only one y

∴ {(-1 , 3), (4 , 2), (-1 , 5)} is not a function

In {(1 , 2), (3 , -5), (-1 , 7)}

∵ x = 1 has y = 2

∵ x = 3 has y = -5

∵ x = -1 has y = 7

∴ Every x has only one y

∴ {(1 , 2), (3 , -5), (-1 , 7)} is a function

In {(7 , -1), (3 , -2), (5 , -2)}

∵ x = 7 has y = -1

∵ x = 3 has y = -2

∵ x = 5 has y = -2

∴ Every x has only one y

∴ {(7 , -1), (3 , -2), (5 , -2)} is a function

The relation {(-1 , 3), (4 , 2), (-1 , 5)} is not a function

Learn more:

You can learn more about the relations and functions in brainly.com/question/10570041

#LearnwithBrainly

6 0
3 years ago
5. Consider the diagram below. Solve for x.
mrs_skeptik [129]

Answer:

41 degrees

Step-by-step explanation:

The three angles need to add up to 180 degrees!

4 0
3 years ago
Find the value of x in the triangle shown below.​
Luba_88 [7]

Answer:

37°

Step-by-step explanation:

By definition all internal angles of a triangle add up to 180°

Hence,

98° + 45° + x = 180°

x = 180° - 98° - 45° = 37°

8 0
3 years ago
-2 = K+7/3 find for k
Likurg_2 [28]

Answer:

k = -13/3

Step-by-step explanation:

Step 1: Flip the equation.

k + 7/3 = -2

Step 2: Subtract 7/3 from both sides.

k+ 7/3-7/3 = -2 - 7/3

k= -13/3

Hope this helps!

5 0
3 years ago
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