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Lesechka [4]
3 years ago
11

I need help with number 13, PLEASE. Extra points!

Mathematics
1 answer:
gladu [14]3 years ago
5 0

Answer:

90°, 270°

Step-by-step explanation:

2r sin(Ф/2) = c

2r sin (Ф/2) = √2r

divide both sides by 2r

sin (Ф/2) = √2r/2r

sin(Ф/2) = √2/2

From the unit circle sin is √2/2 at 45°, and 135°

so Ф/2 = 45

Ф=90°

and Ф/2 = 135

Ф= 270°

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Greater because the product of the fraction is greater than 1

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A shop owner bought 30 files and some diaries .he paid $82.50 for the files.each diary cost 10 times as much as a file.what was
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Evaluate each expression if a = 4.1, b = 5.7, and c=0.3.<br> 4. a+b-c <br> 5. 10-(a+b)<br> 6. B- c+2
posledela

Answer:

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  • 10-(a+b) = 0.2
  • b-c+2 = 7.4

Step-by-step explanation:

4)

Given the expression

a+b-c

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a+b-c = 4.1+5.7-0.3

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substituting the values in the expression

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b-c+2

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substituting the values in the expression

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URGENT HELP! URGENT I WILL GIVE ALL OF MY POINTS
anastassius [24]

Answer:

false, true, false

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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