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Marat540 [252]
2 years ago
7

PLEASE HELP!!!! IM SOO CONFUSED

Mathematics
1 answer:
dangina [55]2 years ago
5 0

Answer:

4. 480.38m² 6. 3.35

Step-by-step explanation:

Assuming you're looking for the area of the shaded region, you must first be aware that the entire circle has a 360 angle.

From there. for no. 4:

You subtract 87 from 360 to find the angle of the major arc.

360-87=273

From there you must also know the formula to find the area of a sector which is:

(x/360)×pi×r²

In our case 273 is x and 14.2 is r so

(273/360)×pi×14.2²= 480.38

Do the same steps to find 6

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I believe it would be 13p im not for sure though
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Use the Associative Property of Addition to find the total of 4, 12, and 18 in two different ways.
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4, 12, and 18 in two different ways

<span>(4 + 12) + 18 = 16 + 18 = 34
 
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answer is B) </span><span>(4 + 12) + 18 = 16 + 18 = 34; 4 + (12 + 18) = 4 + 30 = 34 (second choice)</span>
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Answer:

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Step-by-step explanation:

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2 years ago
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A silo is in the shape of a cone. The silo is 7 meters tall, and its base has a radius of 1.5 meters. Rice costs 204$ per cubic
olganol [36]

Answer:

  $3364.65

Step-by-step explanation:

The volume of the cone is given by the formula ...

  V = (1/3)πr²h

Filling in the given numbers, we find the volume to be ...

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The cost of the rice will be the product of this volume and the price per cubic meter:

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The cost of the rice necessary to fill the volume is $3364.65.

_____

<em>Comment on pi</em>

If you use the value 3.14 for pi, the cost comes to $3362.94. A 3-digit value of pi only gives an answer good in its first 3 digits.

3 0
3 years ago
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