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vitfil [10]
3 years ago
10

Does anyone know the answer to this?

Mathematics
2 answers:
aalyn [17]3 years ago
8 0

First you need to distribute : -4x + 8x - 3

Combine like terms : 4x -3


STALIN [3.7K]3 years ago
5 0

8.  Im assuming you want to:-

Simplify  -2x(2 - 4x ) - 3

Distributing the -2x over the parentheses:-

= -4x + 8x^2 - 3

= 8x^2 - 4x - 3

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If x=3 y=-5 and z=-2 what is 90xyz ➗xy? PEMDAS PLEASE HELP! :(
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Step-by-step explanation:

90×3×-5×-2/3×-5

2700/-15

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3 years ago
Solve c= 5/9(F-32) for F
guajiro [1.7K]

Answer:

F=9/5c+32

Step-by-step explanation:

  • c=5/9f-160/9

  • 9c=5f-160

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8 0
2 years ago
At noon a train leaves Washington, D.C., headed for Charleston, South Carolina, a distance of 500 mi. The train travels at a spe
Bogdan [553]

Answer:

6 hours

Step-by-step explanation:

Answer:

6 hours

Step-by-step explanation:

Firstly, it is important to know where the train that leaves Washington will get after one hour since they didn't start at the same time between noon and 1 is 1 hour.

Speed = distance / time

Distance = speed * time

The distance S = 44 * 1

S= 44m

To determine the time they will pass each other

500(total distance)- 44 ( distance gotten to in 1 hour) - d(the distance it willl pass each other =44* t(time the train will pass each other.

456-d =44t

Second train

d = 32t

Substituting to the equation

456-32t=44t

456=76t

t= 6 hours.

The time they will pass each other is six hours.

4 0
3 years ago
Don't do for points.<br><br> Don't get your account banned.<br><br> Don't be me
elena-14-01-66 [18.8K]
The last option 9,000
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3 years ago
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