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Soloha48 [4]
3 years ago
14

What is 4.6 × 108 cm/min in meters per hour?   A. 2.76 × 10^8  m/h   B. 2.76 × 10^10  m/h   C. 7.67 × 10^6  m/h   D. 7.67 × 10^8

 m/h
Mathematics
1 answer:
siniylev [52]3 years ago
7 0
1m=100cm\to1cm=0.01m\\1h=60min\to1min=\frac{1}{60}h\\========================\\\\4.6\times10^8\ cm/min=4.6\times10^8\times\frac{0.01m}{\frac{1}{60}h}=4.6\times10^8\times0.6\ m/h\\\\=\boxed{2.76\times10^8\ m/h}\\\\Answer:\fbox{A.}
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When the sun is at 31 above the horizon, a tree casts a 42 ft. shadow. how tall is the tree?
Fantom [35]
Answer: 25.2361459992ft

This question can be solved by a trigonometric equation. Shadow formed when something with height like a tree, so it can be pictured as a vertical line. Shadow is a length of and can be pictured as a horizontal line.  
In trigonometric, to find the vertical line length with horizontal line you need tan function. The sun angle will be used in the function, so the calculation would be: tan(31) x 42ft = 25.2361459992ft

5 0
3 years ago
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3 years ago
In a lottery game, a player picks six numbers from 1 to 22. If the player matches all six numbers, they win 20,000 dollars. Othe
Angelina_Jolie [31]

Answer:

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Therefore we conclude:

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Step-by-step explanation:

Hope this helped!

8 0
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What is the solution of the system of equations? y = –3x + 8 y = –5x – 2
jekas [21]
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6 0
3 years ago
Read 2 more answers
-56z+28 is equal to what?
Svetlanka [38]

Answer:

Factor  − 28  out of  − 56 z + 28 .

answer = − 28 ( 2 z  −  1 )

Step-by-step explanation:

Hope this helps! Have a great day!

8 0
3 years ago
Read 2 more answers
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