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3 years ago

Needing help on my geometry final, I have been in and out of the hospital, any help is appreciated.

Mathematics

1 answer:

quester [9]3 years ago

7 0

Answer:

1. area = 1/2bh = (1/2)(21)(18) = 189 yd²

2. 3x2x3x2 = 36 different ways

3. area of kite = (1/2)(18)(24) = 216 units²

4. 8:52 or reduced, 2:13

5. Sorry, this is not my strong point

Step-by-step explanation:

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Select the correct answer from each drop-down menu.

maxonik [38]

Answer:

$(b)\\\tan x, \cot x$

Step-by-step explanation:

Given

trigonometric function is

$\dfrac{\cos 2x-\cos 4x}{\sin 2x+\sin 4x}$

Applying trigonometric formulae

$\Rightarrow \cos C-\cos D=-\sin (\dfrac{C+D}{2})\sin (\dfrac{C-D}{2})\\\\\Rightarrow \sin C+\sin D=\sin (\dfrac{C+D}{2})\cos (\dfrac{C-D}{2})$

$\Rightarrow \dfrac{\cos 2x-\cos 4x}{\sin 2x+\sin 4x}=\dfrac{2\sin 3x\cdot \sin x}{2\sin 3x\cdot \cos x}\\\\\Rightarrow \dfrac{\sin x}{\cos x}=\tan x$

option (b) is correct

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