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VARVARA [1.3K]
3 years ago
14

Refer to your math writing journal file named "Lines and Angles." What real-world examples did you describe for the three ways i

n which two lines may be related?
Mathematics
1 answer:
Sav [38]3 years ago
6 0

Answer:

  1. Railway lines are example of parallel lines
  2. The floor and the walls of a room are example of perpendicular lines
  3. Two roads crossing at a signal can be termed as example of intersecting lines

Step-by-step explanation:

The lines can be related in following three ways

  1. Lines can be parallel
  2. Lines can be perpendicular
  3. Lines can be intersecting at an angle other than 90.

Now three real life examples of above three scenarios are described below:

  1. Railway lines are example of parallel lines
  2. The floor and the walls of a room are example of perpendicular lines
  3. Two roads crossing at a signal can be termed as example of intersecting lines
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R = 3
6x3=18
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Point Q’ is the image of Q (3,-4) under a reflection across the x-axis
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Answer:

Q' (-3,4)

Step-by-step explanation:

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Use the long division method to find the result when 12x3 + 27x2 + 23x + 10 is
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12x3+27x2+23x+10/ 4x+5


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I don’t understand this someone pls help me! (Question 10)
Likurg_2 [28]

Answer:

  a. f(n) = n(n+1)/2

  b. 351

  c. 19

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Step-by-step explanation:

a. The terms are 1, 3, 6, 10, ...

Each term has the term number added to the previous term. That is, first differences are 3-1 = 2, 6-3 = 3, 10-6 = 4. These differences have a constant difference of 1.

When the 2nd differences are constant, a 2nd degree polynomial can describe the sequence. It is a little bit of trouble to find that polynomial.

For the polynomial ...

  f(n)=an^2+bn+c

We can substitute values for n and f(n) to get 3 equations in 3 unknowns:

  1=a\cdot1^2+b\cdot1+c\\\\3=a\cdot2^2+b\cdot2+c\\\\6=a\cdot3^2+b\cdot3+c

Solving these equations by your favorite method gives ...

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That is, the function representing the relationship is ...

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3 years ago
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Answer:

2/3

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