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Goshia [24]
3 years ago
10

Needed before 2/18/2022 || Geometry Find m∠BFC

Mathematics
1 answer:
Vinil7 [7]3 years ago
7 0

Answer:

<em>∠BFC: 94 degrees</em>

Step-by-step explanation:

∠AFB: 86 degrees

to make up a straight line you need all angles to add up to 180 degrees

180 - 86 = 94

hope this helps!   :- )

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What are the values of a and b?
ivann1987 [24]

Answer:

<h2>a = 400/21, b = 580/21</h2>

Step-by-step explanation:

Small triangles are similar. Therefore, the sides are proportional

\dfrac{a}{20}=\dfrac{20}{21}               <em>cross multiply</em>

21a=(20)(20)       <em>divide both sides by 21</em>

a=\dfrac{400}{21}

For b, we can use the Pythagorean theorem:

b^2=\left(\dfrac{400}{21}\right)^2+20^2\\\\b^2=\dfrac{160000}{441}+400\\\\b^2=\dfrac{160000}{441}+\dfrac{176400}{441}\\\\b^2=\dfrac{336400}{441}\to b=\sqrt{\dfrac{336400}{441}}\\\\b=\dfrac{\sqrt{336400}}{\sqrt{441}}\\\\b=\dfrac{580}{21}

3 0
3 years ago
Answer this pleaseeeee past due
Airida [17]

Answer:

8.8

Because you can devide 66 by 7.5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the midpoint of the segment with the given endpoints. G(–4, 4) and H(2, 10)
Pavel [41]
The average of those two values is
  ((-4+2)/2, (4+10)/2) = (-1, 7)
5 0
3 years ago
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The diameter of the larger circle is 12.5 cm. The diameter of the smaller circle is 3.5 cm.
JulsSmile [24]

If the diameter of the smaller circle is 3.5cm, that means the radius is 1.75cm.

The area of the smaller circle is π × 1.75², which is ≈ 9.62112750162.

The diameter of the larger circle is 12.5 cm, so the radius would be half that, which is 6.25cm. The area of the larger circle would be π × 6.25², which is ≈ 122.718463031.

So now that we know the area of the larger circle and the smaller circle, we can find the area of the shaded region by subtracting the area of the smaller circle from the area of the larger circle, which is basically just 122.718463031 - 9.62112750162, which is = 113.097336. The closest answer here is 113.04, hence the answer is 113.04cm².

7 0
3 years ago
If you give me the answer I’ll give brainlist just plz help me !!
Sergio [31]

Answer:

So roudned to the nearest 10th it would be about $70

Step-by-step explanation:

8 0
3 years ago
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