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forsale [732]
3 years ago
6

Please help with math 30 points

Mathematics
1 answer:
AlladinOne [14]3 years ago
7 0
Y=|x+7|-9

Im not sure how to explain this sorry
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I believe it’s c but I could be wrong
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Which expression is equivalent to -0.6(1.2x + 4.5) - 3(2.8x - 4)?
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A. -9.2x + 9.3

1. Distribute -0.6 and -3 to the brackets (by multiplying )
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HELP PLEASE I NEED HELp
lidiya [134]

Answer:

Step-by-step explanation:

GH bisects ∠FGI

∠HGI = ∠HGF

4x - 14 = 3x - 3

4x = 3x - 3 + 14    {Add 14 to both sides}

4x = 3x + 11             {Subtract 3x from both sides}

4x - 3x = 11

x = 11

∠HGI = 4x - 14

         = 4*11 - 14

         = 44 - 14

         = 30°

∠FGI = 30 + 30

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4 0
3 years ago
A train 100 m long crosses a pole in 5 seconds.Find the speed of the train in kilometre per hour.​
In-s [12.5K]

Answer:

\sf72  km/h

Step-by-step explanation:

Distance covered by the train in crossing the pole = 100 m.

\sf Time \:  taken=5 \:  seconds

\sf \: Speed  \: of \: the \: train =  \frac{Distance }{Time}

\sf =  \frac{100}{5} \:  m/s

\sf \:  = 20 \: m/s

\sf \: =  20 \times \frac{18}{5}  \: km/h

\sf = 72 \: km/h

  • Hence, the speed of the train is 72 km/h
6 0
3 years ago
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