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vodomira [7]
3 years ago
11

Please someone help me with this I am very confused

Mathematics
1 answer:
Elis [28]3 years ago
4 0
8 \sqrt{3} *4 \sqrt{15} = 8*4 \sqrt{3*15}  \\  \\ 32 \sqrt{45} = 32 \sqrt{9*5} =32*3 \sqrt{5}  \\  \\ = 96 \sqrt{5} 

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3 years ago
Find the area of a regular decagon with a side length of 14 and an apothem of 25.
andriy [413]
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4 0
3 years ago
Match the equations with their solutions over the interval [0, 2π].
nignag [31]

I solved this using a scientific calculator and in radians mode since the given x's is between 0 to 2π. After substitution, the correct pairs are:

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sec(x)cot(x) + 2 = 0 → 7π/6 and 11π/6

sec(7π/6)cot(7π/6) + 2 = 0

sec(11π/6)cot(11π/6) + 2 = 0

 

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sin(3π/4)cot(3π/4) + 1/sqrt2 = 0

sin(5π/4)cot(5π/4) + 1/sqrt2 = 0

 

csc(x)tan(x) – 2 = 0 → π/3 and 5π/3

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5 0
3 years ago
Read 2 more answers
Repost of my question i need help quicklyy help plzz
GuDViN [60]

Answer:

According to logarithmic properties.... The right hand side can be written as

log base 7 (180/3).....which is log base 7 60

So according to the question cancel out the log base 7 from both sides....

Then we get 8r + 20 = 60

That is 8r = 40..

That is r = 5......

Therefore the value of r is 5

8 0
2 years ago
12 out of 30 people chose their favourite colour as blue. calculate the angle you would use for blue on a pie chart.
yKpoI14uk [10]
You'd first have to find out what percentage of people would be 30 out of 100%
4 0
3 years ago
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