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Paladinen [302]
3 years ago
5

A circle has a circumstance of 22cm what’s the radius using pi

Mathematics
1 answer:
atroni [7]3 years ago
7 0

Answer:

3.50

Step-by-step explanation:

C = 2πr

   or

C = πd

In this case we are using C = 2πr

C = 2πr

22 = 2 x 3.14 x r

22 = 6.28 x r

22/6.28 = 6.28r/6.28

3.503184713375796178343949044585987261 = r

But estimated is 3.50

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3[x + 3(4x – 5)] = 15x – 24
Alex17521 [72]

Answer:

\boxed{ \bold{ \huge{ \boxed{  \sf{x = 0.875}}}}}

Step-by-step explanation:

\sf{3[ x + 3(4x - 5)]  = 15x - 24}

Distribute 3 through the parentheses

⇒\sf{3[ x + 12x - 15 ]  = 15x - 24}

Collect like terms : 12x and x

⇒\sf{3[ 13x - 15 ]  = 15x - 24}

Distribute 3 through the parentheses

⇒\sf{39x - 45 = 15x - 24}

Move 15x to left hand side and change it's sign

Similarly, move 45 to right hand side and change it's sign

⇒\sf{39x - 15x =  - 24 + 45}

Collect like terms

⇒\sf{24x =  - 24 + 45}

Calculate

⇒\sf{24x = 21}

Divide both sides of the equation by 24

⇒\sf{ \frac{24x}{24}  =  \frac{21}{24}}

Calculate

⇒\sf{x = 0.875}

Hope I helped!

Best regards! :D

5 0
3 years ago
I need help on B!!!! i need explanation +math
jekas [21]

It shows that six years pasted between 2007 and 2013 and it increased by 20,000 so add that to the population at the time the answer is 158000

5 0
3 years ago
Estimate the sum by rounding the numbers to the nearest hundred and then adding: 539 + 221
Zina [86]

Answer:

700

Step-by-step explanation:

539 rounded to 500

221 rounded to 200

500 plus 200 is 700

5 0
3 years ago
7(2a−9)−(8a+2) Simplified please anyone?
Verizon [17]

Answer:

6a+61

Step-by-step explanation:

7(2a-9)-(8a+2)

7x2a=14a

7x9=63

14a+63-(8a+2)

-1x8a=-8a

-1x2=-2

14a+63-8a-2

6a+61

8 0
3 years ago
You’re at a party with 199 other guests when robbers break in and announce that they are going to rob one of you. They put 199 b
Alexeev081 [22]

Answer:

First

Step-by-step explanation:

Since, the probability that the first person pick the paper marked "you lose" is 1/200, which is smaller than the probability of who draws later.

3 0
3 years ago
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