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Contact [7]
3 years ago
15

Express the following as a function of a single angle sin 20° cos 30° + cos 20° sin 30°

Mathematics
1 answer:
m_a_m_a [10]3 years ago
8 0

Answer:

Cos= 30•

Step-by-step explanation: Apex

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Marie's journal is 400 pages long. She has used 20% of the journal. How many pages has she used so far?
vitfil [10]

Answer:

40/ or /80

Step-by-step explanation:

Because 400 is a lot and if it's 100% is 400 right so we do 80% what would that be? we don't know right.

What about 100 pages that would be (im pretty sure) 40% or 50%.

I hope this helped!!!

GOODLUCK!!!!!!!!!!

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5 0
3 years ago
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Please help me with this question
azamat
It is 90 your welcome
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Use the property of exponents to rewrite the expression<br> (-4qr)(-4qr)(-4qr)(-4qr)
ivanzaharov [21]

Answer:

(-4qr)^4

Step-by-step explanation:

(-4qr)(-4qr)(-4qr)(-4qr)

There are 4 sets of -4qr being multiplied together

(-4qr)^4

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3 years ago
What are the solution(s) of x squared -4=0
Damm [24]
-4 I believe I’m not sure tho
8 0
3 years ago
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Please double-check for me :)
frosja888 [35]

<em>I think your answer is fine</em>

8 0
3 years ago
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