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Sergeeva-Olga [200]
3 years ago
7

Please answer it now

Mathematics
1 answer:
GaryK [48]3 years ago
8 0

Answer:

1306.90≅  1307 rounded to the nearest tens

Step-by-step explanation:

r= radius = 13 cm

l is the slant height =19 cm

surface area of the cone= area of the circle + area of the curved of the cone

SA=πrl +πr²

SA=π(13)(19) +169π

SA= 247π +169π= 416π=1306.90≅  1307 rounded to the nearest tens

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julsineya [31]

Answer:

Step-by-step explanation:

put the left hand numbers into your calculator, find the answers.

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1. fourth answer on the botton

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3. third one

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4 0
1 year ago
When Sam gave Clarissa 105 chocolates, Clarissa had 5 times as many chocolates as Sam. They had 504 chocolates altogether. How m
IgorLugansk [536]

Answer:

315 chocolate

Step-by-step explanation:

Let Sam's chocolate be S

Let Clariss's chocolate be C

When Sam gave Clarissa 105 chocolates, Clarissa had 5 times as many chocolates as Sam.

This can be written as:

C = 5S

The sum of their chocolate is 504 i.e

S + C = 504

Now, let us determine the chocolate of Clarissa after receiving 105 chocolate from Sam. This can be obtained as follow:

S + C = 504

But: C = 5S

S + 5S = 504

6S = 504

Divide both side by 6

S = 504/6

S = 84.

C = 5S = 5 x 84 = 420

Therefore, Clarissa have 420 chocolate after receiving 105 chocolate from Sam.

Now, to know the amount of chocolate that Clarissa has at first, we simply subtract 105 from the present amount that Clarissa have. This is illustrated below:

Amount of chocolate that Clarissa has a first = 420 – 105 = 315

Therefore, Clarissa had 315 chocolate at first.

3 0
3 years ago
Please help a brother out I will give you brainliest <br><br> -x-y=1 <br> y=-x+4
Vera_Pavlovna [14]

Answer:

x=3 y=1

Step-by-step explanation:

-x-y=1

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x=-y-1

x=-y+4

x=-1+4

<u>x=3</u>

y=-3+4

<u>y=1</u>

7 0
2 years ago
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leva [86]

Answer:

Check attachment for complete question and answer

8 0
2 years ago
What is the area of this triangle ?
Liula [17]

Answer:

8

Step-by-step explanation:

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4x4/2

=16/2

=8

5 0
2 years ago
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