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Delvig [45]
3 years ago
10

Find the distance between (-8,-2) and (6,-1)

Mathematics
1 answer:
katen-ka-za [31]3 years ago
3 0

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{ \sqrt{197} \:  \:  units}}}}}

Step-by-step explanation:

Let the points be A and B

Let A ( -8 , -2 ) be ( x₁ , y₁ ) and B ( 6 , - 1 ) be ( x₂ , y₂ )

<u>Finding the distance between these points </u>

\boxed{ \sf{distance =  \sqrt{ {(x2 - x1)}^{2} +  {(y2 - y1)}^{2}  } }}

\dashrightarrow{ \sf{ \sqrt{ {(6 - ( - 8))}^{2} +  {( - 1 - ( - 2))}^{2}  } }}

\dashrightarrow{ \sf{ \sqrt{ {(6  + 8)}^{2} +  {( - 1 + 2)}^{2}  } }}

\dashrightarrow{ \sf{ \sqrt{ {(14)}^{2}  +  {(1)}^{2} } }}

\dashrightarrow{ \sf{ \sqrt{196 + 1}}}

\dashrightarrow{ \boxed{ \sf{ \sqrt{197 \:} \: units}}}

Hope I helped!

Best regards! :D

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Answer:

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Step-by-step explanation:

The equation for a line is

y = mx+b where m is the slope and b is the y intercept

y = 2x+b

We know a point so we have a y and an x, so we can solve for b

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Step-by-step explanation:

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How many solutions does the following<br> equation have?<br> 7(y + 3) = 5y + 8<br><br> answer:
vodomira [7]

Answer:

One Solution

Explanation:

7(y + 3) = 5y + 8

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7(y + 3) = 5y + 8

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7y + 21 = 5y + 8

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7y + 21 − 5y = 5y + 8 − 5y

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Subtract 21 from both sides

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Divide both sides by 2

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6 0
3 years ago
Factorising quadratics<br><br> X squared + 5x -6<br> X squared - 2x15<br> X squared -7x +12
34kurt

Answer:

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Step-by-step explanation:

In each case, you're looking for divisors of the constant that have a sum equal to the x-coefficient. Those divisors are the constants in the binomial factors.

1) -6 = -1·6 = -2·3 . . . . . (-1)+(6) = 5, so these are the constants of interest.

  x^2 +5x -6 = (x -1)(x +6)

__

2) -15 = -1·15 = -3·5 = -5·3 . . . . . (-5)+(3) = -2, so these are the constants of interest

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3) 12 = -1·-12 = -2·-6 = -3·-4 . . . . . (-3) +(-4) = -7, so these are the constants of interest

  x^2 -7x +12 = (x -3)(x -4)

5 0
4 years ago
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