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Vikentia [17]
3 years ago
15

In the diagram above (not to scale), Vx/y = 12.57 meters/second and

Mathematics
2 answers:
EastWind [94]3 years ago
8 0
The first vector's speed is 12.57 meters for one second
The second vector's speed is 5.21 meters for one second
The total distance is 12.57+5.21 = 17.78 meters over two seconds
Hence the speed is 17.78 / 2 = 8.89m/s
Maru [420]3 years ago
3 0

Answer:

A. 7.36 meters/second

Step-by-step explanation:

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The sum of an infinite geometric series is three times the first term. Find the common ratio of this series.
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Answer:

\frac{2}{3}

Step-by-step explanation:

The sum of an  infinite geometric series is expressed according to the formula;

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If the sum of an infinite geometric series is three times the first term, this is expressed as S_\infty = 3a

Substitute S_\infty = 3a into the formula above to get the common ratio r;

3a = \dfrac{a}{1-r} \\\\

cross \ multiply\\\\3a(1-r) = a\\\\3(1-r) = 1\\

open the parenthesis

3 - 3r = 1\\\\

subtract 3 from both sides

3 - 3r -3= 1-3\\\\-3r = -2\\\\r = \frac{2}{3}

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3 0
3 years ago
Simplify the expression using the distributive property 2x (x- 9)​
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Answer:

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Step-by-step explanation:

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How many ways are there for six dogs and four cats to sit in a row in a strawberry field so that no two cats sit next to each ot
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Step-by-step explanation:

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\\D C D C D C D C D D   or

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\\D C DD C D C D C D or

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\\D C D C D C DD C D

\\Each of the arrangements above  could be done in

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\\= 2 x 24 x 24

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3 years ago
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