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PSYCHO15rus [73]
3 years ago
9

Circle D is shown. Line segment F E goes through point D. Line segment C D is shown. Line segment G H goes from one side of the

circle to the other side. Line segment A B is outside of the circle and intersects the circle at point B.
Mathematics
1 answer:
Inessa05 [86]3 years ago
6 0

Answer:

The answer is AB also i just took the test on edg and got it right

Step-by-step explanation:

A straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point is a tangent.

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(2) The population density of a region in Alaska is 3,000 people/200 mi? Which of the
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15 people/mi

Step-by-step explanation:

The population density of a region in Alaska is 3,000 people/200 mi.

We need to find the equivalent to the population density of this Alaskan region.

x=\dfrac{3000\ \text{people}}{200\ \text{mi}}\\\\x=\dfrac{30\ \text{people}}{2\ \text{mi}}\\\\x=\dfrac{15\ \text{people}}{\text{mi}}

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2 years ago
A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. Four hu
castortr0y [4]

<em>Answer: h = 120 ft;    w = 80 ft </em>

<em></em>

<em>A = 9600 ft^2</em>

<em />

<em>Step-by-step explanation: Let h and w be the dimensions of the playground. The area is given by:</em>

<em></em>

<em>A = h*w   (eq1)</em>

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<em>The total amount of fence used is:</em>

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<em>L = 2*h + 2*w + w    (eq2)    (an extra distance w beacuse of the division)</em>

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<em>Solving for w:</em>

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<em>w = L - 2/3*h = 480 - 2/3*h   (eq3)  Replacing this into the area eq:</em>

<em></em>

<em></em>

<em></em>

<em>We derive this and equal zero to find its maximum:</em>

<em></em>

<em>   Solving for h:</em>

<em></em>

<em>h = 120 ft.  Replacing this into eq3:</em>

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<em>w = 80ft</em>

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<em>Therefore the maximum area is:</em>

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<em>A = 9600 ft^2</em>

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