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gtnhenbr [62]
3 years ago
10

40 boys in a group.

Mathematics
1 answer:
Mila [183]3 years ago
8 0

Answer:

46?

Step-by-step explanation:

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5/10 because you multiply the denominator and numerator by 5
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The speed of light is 3 x 108 m/s. If its frequency is 4.11 x 104 Hz, what is its wavelength?
QveST [7]

Answer:

Wave length = speed / frequency

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Step-by-step explanation:

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Step-by-step explanation:

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Find the area of a triangle with sides of length 6 and 7 and included angle 74°. (round your answer to one decimal place.)
Yanka [14]
We use this formula:
<span>Area = ½ • side 1 • sine (A) • side 2
</span>Area = <span>½ • 6 • sine (74) • 7
</span><span>Area = <span>21 • sine (74)
Area = 21*0.96126
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Area = 20.2 (rounded)
Source:
http://www.1728.org/triang.htm


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In the exam 45% students failed and 550 students were successful. The total number of students appeared in the exam.
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1000

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