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Anna007 [38]
3 years ago
5

Find the area of a regular nonagon with a side length of 7 and an apothem of 5

Mathematics
1 answer:
Bezzdna [24]3 years ago
6 0
The formula for finding the area of a regular polygon is 1/2(apothem)(perimeter).

Well, since this is a nonagon (9 sides) and each side has a length of 7, so 7 times 9 equals 63 (perimeter of the shape).

Now, we have all the information we need to plug into our formula: 
1/2(5)(63). I already set up the equation for you, so you just need to evaluate it. 
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The product of two consecutive even integers is 224. what are the integers?
algol [13]

Answer:

16, -16, 14, and -14

Step-by-step explanation:

The easiest way of solving this question is by setting up an equation. Let's use "n" to represent any random possible integer.

n (n + 2)  = 224

Simplifying:

x^2 + 2n - 224 = 0

(n + 16)(n - 14) = 0

n = -16, 16 or n = -14, 14

<u>Check:</u>

16 * 14 = 224

-16 * -14 = 224

Thus, answers of 16, -16, 14, and -14 all work correctly.

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The cost of three pounds of grapes is $6.57 what is the constant proportionality that relates the cost in dollars to the number
NemiM [27]
$6.57/3 = $2.19 That is the answer.
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Is the square root of 8 greater than, less than, or equal to 4 ?
Tom [10]

Answer:

  • √8 is less than 4

Step-by-step explanation:

We need to compare √8 and 4

<em>To compare the numbers they should both be in the same format</em>

<u>√8 is not a perfect square so we'll put number 4 under root</u>

  • 4 = √4² = √16

<u>Now we compare</u>

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So √8 is less than 4

3 0
3 years ago
HELP! IM STUCK!
Readme [11.4K]

Answer:

(x-1)^2+(y+4)^2=9

Step-by-step explanation:

The equation of a circle is given by:

(x-h)^2+(y-k)^2=r^2

Where (h, k) is the center and r is the radius.

The center of the circle is (1, -4).

And the radius is 3.

Substitute:

(x-(1))^2+(y-(-4))^2=(3)^2

Simplify. Thus, our equation is:

(x-1)^2+(y+4)^2=9

3 0
3 years ago
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