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gizmo_the_mogwai [7]
3 years ago
5

11.447 is greater than 11.473

Mathematics
1 answer:
Stells [14]3 years ago
8 0
No 11.473 is greater then 11.447
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Please help, i dont understand an ounce of this
nignag [31]

Let x be the length of each side of the nonagon. We then split up the nonagon into 9 congruent, isosceles triangles, each with base = x and height = 12. Then the area of each triangle is 1/2 • x • 12 = 6x, so the total area of the nonagon will be 9 • 6x = 54x.

To find x, we can use some facts from geometry and trigonometry.

• In any polygon, the sum of the measures of the exterior angles is 360°. So each of these exterior angles will measure 360°/9 = 40°.

• Exterior angles are supplementary to the interior angles. So each interior angle will measure 180° - 40° = 140°.

• Each of the 9 triangles are isosceles with base angles measuring half the interior angles of the nonagon, 140°/2 = 70°.

• Cut the triangle in half along the labeled inradius of the nonagon, which has length 12. In the resulting right triangle, we have

tan(70°) = 12 / (x/2)

and solving for x gives

tan(70°) = 24/x

x = 24/tan(70°)

x = 24 cot(70°) ≈ 8.7

Then the total area of the nonagon is

54x = 54 • 24 cot(70°) ≈ 471.7

4 0
2 years ago
PLEASE HELP ME BEST ANSWER GETS BRAINLIEST NO SCAMS PLEASE!
fomenos

Answer:

False

Step-by-step explanation:

People reading in a library are most likely going to like to read books

8 0
3 years ago
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The ratio of 6 inches to 3 feet expressed in simplest form is 1/6. True False
erastovalidia [21]
The answer is true. Hope this helps!!!
3 0
3 years ago
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Solve for x. 9≤17−4x Enter your answer, as an inequality, in the box.
Stella [2.4K]
9 ≤ 17 - 4x

9 - 17 ≤ 17 - 17 - 4x

-8/-4 ≤ - 4x/-4

x≤ 2

hope this helps
4 0
3 years ago
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Someone pls Help me out!!!
Law Incorporation [45]

Answer:

Gasoline = 10.2 * 3.80= 38.76

Water= 3 * 3.98 = 11.94

Ice- 3 * 1.99 = 5.97

Oranges= 1 * 8.89 = 8.89

Step-by-step explanation:

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3 years ago
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