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sattari [20]
3 years ago
11

Points H and F lie on circle C. Circle C is shown. Line segments E C, F C, and D C are radii. Tangents E G and D G intersect at

point D outside of the circle. A line is drawn to connect points F and G. The length of G E is 12 and the length of E C is 9. Angles E and D are right angles. What is the length of line segment GH? 3 units 4 units 5 units 6 units
Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
8 0

Answer:

ed: 6 units

Step-by-step explanation:

stira [4]3 years ago
6 0

Answer:

answer on ed. is 6 units

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Find the inverse of the following function. Then prove they are inverses of one another.
solmaris [256]

Answer: \dfrac{x^2+1}{2}

Step-by-step explanation:

Given

f(x)=\sqrt{2x-1}

We can write it as

\Rightarrow y=\sqrt{2x-1}

Express x in terms of y

\Rightarrow y^2=2x-1\\\\\Rightarrow x=\dfrac{y^2+1}{2}

Replace y be x to get the inverse

\Rightarrow f^{-1}(x)=\dfrac{x^2+1}{2}

To prove, it is inverse of f(x). f(f^{-1}(x))=x

\Rightarrow f(f^{-1}(x))=\sqrt{2\times \dfrac{x^2+1}{2}-1}\\\\\Rightarrow f(f^{-1}(x))=\sqrt{x^2+1-1}\\\\\Rightarrow f(f^{-1}(x))=x

So, they are inverse of each other.

8 0
3 years ago
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Ne4ueva [31]

Answer:

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Step-by-step explanation:

3 0
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A Youth chorus of 30 members. There are 14 boys in the chorus. What is the ratio of boys to girls in the simplest form?
Bingel [31]

Answer:

C  PLEASE GIVE BRAINLIEST

Step-by-step explanation:

30 - 14 = 16girls

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Answer:

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Step-by-step explanation:

4 0
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