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Maslowich
3 years ago
7

WILL GIVE BRAINLIST AS SOON AS I CAN... is this A? i think it is but i might be wrong.​

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
7 0

I think 'neither' because A and C do not connect anywhere, while they are NOT parellel.

Hope this helps.

igor_vitrenko [27]3 years ago
5 0

Answer:

The answer is B, they are perpendicular

Step-by-step explanation:

To be able to figure this out, you have to first find the relationship between a and b.

You can conclude lines a and b are parallel by the consecutive angles theorem. Line d would be the transversal line that intercepts line a and line b. Because the consecutive angles created are equal, lines a and b are parallel .

Then you can conclude the relationship between line c and d through the exact same principle. Lines c and d are parallel.

Notice how line a and line d create a right angle (as indicated by the square drawn on the angle) which means the lines are perpendicular to each other.

Since line c is parallel to line d, you can finally conclude that the intercept of line c and a would create a right angle and the lines would this be perpendicular.

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3 years ago
It takes a train 60 seconds to completely drive through a bridge of 1260 m, and 90 seconds to completely drive through a tunnel
Olegator [25]

The length of train is 120 meters

The speed of train is 25 meter per second

<u><em>Solution:</em></u>

The speed is given by formula:

speed = \frac{distance}{time}

Given that,

It takes a train 60 seconds to completely drive through a bridge of 1260 m

And 90 seconds to completely drive through a tunnel of 2010 m

Let the length of the train be "x"

<em><u>The total distance travelled by the train across the bridge is given by:</u></em>

total distance = x + 1260 + x = 2x + 1260

[ here we use x + x to represent that train completely drives through bridge ]

The time taken is given as 60 seconds

<em><u>Therefore, the speed is given as:</u></em>

speed = \frac{2x+ 1260}{60}

<em><u>The total distance travelled by the train through the tunnel is given by:</u></em>

total distance = x + 2010 + x = 2x + 2010

The time taken is given as 90 seconds

<em><u>Therefore, the speed is given as:</u></em>

speed = \frac{2x+ 2010}{90}

The speed of the train was the same in both cases.

Equate both speeds

\frac{2x+ 1260}{60} = \frac{2x+ 2010}{90}

\frac{x+630}{30} = \frac{x+1005}{45}

45(x+630) = 30(x+1005)\\\\45x + 28350 = 30x + 30150\\\\45x - 30x = 30150 - 28350\\\\15x = 1800\\\\x = 120

Thus length of train is 120 meters

<em><u>Find the speed of train:</u></em>

speed = \frac{2x+ 1260}{60}\\\\speed = \frac{2(120) + 1260)}{60}\\\\speed = 25

Thus speed of train is 25 meter per second

5 0
3 years ago
Plz answer with explanation will choose brainliest
Mrrafil [7]

Answer:

The answer is A.

Step-by-step explanation:

When finding the distance, you have to subtract the two numbers and take the absolute the value of that difference.

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