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Elena L [17]
3 years ago
9

If the train that Megan is riding covers 180 miles in 3 hours, how fast is the train traveling?

Mathematics
1 answer:
Anettt [7]3 years ago
3 0

Answer:

60 mph

Step-by-step explanation:

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Which inequality best represents that ice cream at −5°C is cooler than ice cream at 4°C?
konstantin123 [22]
(<) this means less than 
(>) this means greater than
So since the question doesnt say anything about -4°C we can automatically cross out A and B 
They are both negative! but when you have a negative. Its going to be less than a positive 
So this means 4°C is greater than -5°C 
or in other words
D.) 4°C > -5°C
hope this helps! 
and dont forget 2 
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3 0
3 years ago
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Let A = {x : 2x² + 3x - 2 = 0} and B = {x : x² + 3x - 4 = 0 } find (A U B) × (A Π B)​
ivann1987 [24]

Given :

  • A = {x: 2x² + 3x - 2 = 0 }
  • B = {x : x² + 3x - 4 = 0 }

To find :

  • (A U B ) × (A Π B )

Solution :-

<u>The </u><u>first </u><u>set </u><u>is </u><u>,</u>

  • A ={x : 2x² + 3x - 2 = 0}

<u>Solving</u><u> </u><u>the </u><u>Quadratic</u><u> equation</u><u> </u><u>,</u>

  • 2x² + 3x - 2 = 0
  • 2x² + 4x - x - 2 = 0
  • 2x( x + 2) -1( x + 2 ) = 0
  • (2x -1) ( x + 2) = 0
  • x = 0.5 , -2

<u>Hence</u><u> </u><u>,</u>

  • A ={0.5, -2}

<u>The </u><u>second</u><u> </u><u>set </u><u>is </u><u>,</u>

  • B ={ x :x² + 3x - 4 = 0 }

<u>Solving</u><u> the</u><u> Quadratic</u><u> equation</u><u> </u><u>,</u>

  • x² + 3x - 4 = 0
  • x² + 4x - x - 4 = 0
  • x( x + 4)-1 ( x +4) = 0
  • (x + 4) ( x -1) = 0
  • x = 1 , -4

<u>Hence</u><u> </u><u>,</u>

  • B ={1,4}

<u>Now </u><u>,</u>

  • A U B = { 0.5 , 1 , 4 , -2}
  • A Π B = {∅ }

Since AΠ B is a null set , hence ,

  • A × B = {∅}
8 0
3 years ago
Write the decimal 0.532 as a percent. <br><br> a. 53.2%<br> b. 532%<br> C. 5.32%<br> d. 0.532%
stepan [7]
I believe it would be a.53.2%
6 0
2 years ago
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Can you explain how a table can be used to find the rate of change
serg [7]

A table will generally give you an output value for each of several input values. To find the average rate of change over some range of inputs, divide the difference between output values by the difference between input values for the corresponding inputs.

For example, consider the table

input .... output

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The average rate of change between these input values is

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6 0
3 years ago
276x72 pls I need help I’ll give brainlist
notsponge [240]

Answer:

19872 is your answer

Step-by-step explanation:

8 0
2 years ago
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