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melomori [17]
3 years ago
8

How do you solve 4 (linear systems symbolically)?

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
7 0
All you have to do is add the equations together so you would come out with 10y=20
If you can't solve from there, just message me and I'll help you out 
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A fireman's water hose shoots 320 kg of water each second against the door of a building. The velocity of the water is 20 m/s an
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Answer:

6400\ \text{N}

Step-by-step explanation:

\dfrac{m}{t} = Mass flow rate of water = 320 kg/s

m = Mass of water on the door

t = Time

v = Velocity of water on the door = 20 m/s

Force is given by

F=\dfrac{m}{t}v\\\Rightarrow F=320\times 20\\\Rightarrow F=6400\ \text{N}

The average force is exerted by the stream of water is 6400\ \text{N}.

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N+ 2n + Zn +4<br> How do I simplify this as a algebraic expression
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Answer:

3n + zn + 4

Step-by-step explanation:

Combine the like variables, n and 2n.

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What is capitol of Poland
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