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eduard
3 years ago
12

3. A space shuttle in orbit travels about 60,000 kilometers in two hours. What is its average

Mathematics
1 answer:
Travka [436]3 years ago
4 0

Answer:

30,000 is your answer for ur math problem

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The exact value of cos 17pi/8 is . . a) square root of 2+the square root of 2/4 . b.) 0.38. c.) 0.99. d.)square root of 2-the sq
alexgriva [62]
Cos(17pi/8)

cos(17π/8)

But π radians = 180°

17π/8 radians = (17/8) * 180 = 382.5

But this is more than 360°,  so we have the basic angle by subtracting 360°

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cos(17π/8) = Cos22.5

Recall double angle formula for cos.

cos2θ = 2cos²θ - 1

Therefore

cos(2*22.5) = 2cos²(22.5) - 1

cos45 = 2cos²(22.5) - 1

(√2)/2  =  2cos²(22.5) - 1

2cos²(22.5) - 1 =  (√2)/2


2cos²(22.5)  = (√2)/2 + 1

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cos²(22.5) = (2 + √2) / 4

cos22.5  =   √( (2 + √2)/4) ................(note)

cos22.5 = √(2 + √2) / 2

Option (a) seems like the closest, comparing to (note) above.
7 0
3 years ago
Can i please get some help on this i will mark brainlyest (i dont know how to spell it)
____ [38]

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The second one is 1

Step-by-step explanation:

3 0
3 years ago
Please see attachment below
denpristay [2]

Answer:

What am I looking at here this is something for Albert Einstein

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