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Yuri [45]
2 years ago
7

What is -3(4q-7) Bc I’m confused

Mathematics
2 answers:
noname [10]2 years ago
8 0

Answer:

-3(4q-7)=

4q+3-7

4q-4

beks73 [17]2 years ago
5 0
-3(4q-7)= 4q+3-7 4q-4
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Pls help with Trigonometric
Sav [38]

The value of the given trigonometry function is 2√15/15

<h3>Half angles</h3>

Half angles are trigonometric identities used to express sine, cosine and tangent of half angles.

For instance the value of cos theta is expressed as shown below;

cosФ = cos(Ф/2+Ф/2)

cosФ = cos²Ф/2-sin²Ф/2
cosФ = cos²Ф/2-(1-cos²Ф/2)
cosФ  = 1 - 2cos²Ф/2

Given the following parameters

cosФ = -7/15

Substitute

cosФ  = 1 - 2cos²Ф/2

-7/15  = 1 - 2cos²Ф/2

-2cos²Ф/2 = -7/15 - 1

-2cos²Ф/2 = -8/15

cos²Ф/2 = 4/15
cosФ/2 = 2/√15

Rationalize

2/√15 * √15/√15

2√15/15

Hence the value of the given trigonometry function is 2√15/15

Learn more on trigonometry function here: brainly.com/question/2254074

#SPJ1

8 0
1 year ago
Math problem I need help with
Kruka [31]

Answer:

31° is the answer thank you

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Subtract 6 1/3 - 4 1/9​
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Answer:

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Step-by-step explanation:

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The scale drawing of a window is 1 inch by 2 inches. The actual size of the window is 24 inches by 48 inches.
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This means that every 1 inch in the drawing is 24 inches of the actual size.

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