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nikklg [1K]
3 years ago
12

Help me out :) 15 points! Show work, and only answer if you know how to do it correctly.

Mathematics
1 answer:
Volgvan3 years ago
8 0

Answer:

28

Step-by-step explanation:

First u have to find the bisector,then u have to descrese 18

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Csc^3x-csc^2x-cscx+1=cot^2x(cscx-1)​
belka [17]

Verify the identity:

csc^3x-csc^2x-cscx+1\qquad =cot^2x(cscx-1)\\\\csc^2x(cscx-1)-1(cscx-1) =\quad \downarrow\\\\(csc^2x-1)(cscx-1)\quad \qquad \ =\quad \downarrow\\\\\bigg(\dfrac{1}{sin^2x}-\dfrac{sin^2x}{sin^2x}\bigg)(cscx-1)\ =\quad \downarrow\\\\\\\bigg(\dfrac{1-sin^2x}{sin^2x}\bigg)(cscx-1)\qquad \ =\quad \downarrow\\\\\\\bigg(\dfrac{cos^2x}{sin^2x}\bigg)(cscx-1)\qquad \qquad =\quad \downarrow\\\\\\cot^2x(cscx-1)\qquad \qquad \qquad =cot^2x(cscx-1)\qquad \checkmark

5 0
3 years ago
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Eva8 [605]
Your answer would be G.
5 0
3 years ago
7.<br> Evaluate f(x) = -2x - 5 for x = 3.<br><br> A. 1<br><br> B. 11<br><br> C. –6<br><br> D. –11
Yuliya22 [10]
I think the answer is d. -11

Explanation:

Replace the variable x with 3 in the expression.
f(3)=-2•3-5

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f(3)=-6 -5

Subtract 5 from -6
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Then the answer should be -11.
4 0
2 years ago
Will give brainleist
Mama L [17]

Answer:

A

Step-by-step explanation:

4 0
3 years ago
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Como sumar esta Fracción. 3/3 +<br> 715 + 2/15 al resolverla obtenemos?
Kisachek [45]

Answer:

716 or 10742/15

Step-by-step explanation:

hope this helps

need more answers follow me

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