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Harman [31]
3 years ago
13

Find the distance between the points ( 5, -2) and (-1, -8)

Mathematics
1 answer:
Tems11 [23]3 years ago
4 0

Answer:

Step-by-step explanation:

the  expression could help you find the distance between A(x; y) and B(x',y')is:

AB = √((x-x')²+(y-y')²)

in this exercise  :  x = 5

                             x' = - 1

                              y =-2

                             y' = -8

continue .......

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Find the discriminant of the following quadratic equation then state the number of rational, irrational, and imaginary solutions
lianna [129]

Answer:

  • -6x² - 6 = -7x - 9
  • -6x² + 7x - 6 + 9 = 0
  • -6x² + 7x + 3 = 0
  • 6x² - 7x - 3 = 0

<u>Discriminant:</u>

  • D = (-7)² - 4*6*(-3) = 49 + 72 = 121

<u>Since D > 0, there are 2 real solutions:</u>

  • x = (- (-7) ±√121 )/12
  • x = (7 ± 11)/12
  • x = 1.5, x = -1/3

8 0
3 years ago
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Simplify the following: (-83)2​
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Given:B is the midpoint of AC. Complete the statement. If AB = 7,then BC = _____, and AC = ____.
Alex73 [517]

Midpoint

We know AC is a segment and B is its midpoint. This means the length of the segment AB is half the length of the segment AC. This also means the length of the segment BC is half the length of AC, and equal to AB.

This can be visualized as follows:

Since AB=7, then BC = 7 and AC=AB+BC = 14

Answer: BC = 7, and AC=!4

5 0
8 months ago
What underfined geometric term is described a two dimensional set point that has no beginnings or end
yan [13]
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3 years ago
I need this by Friday please ! <br> Find a degree measure of each angle in the triangle!
Bingel [31]

Answer:

B=19

C=42

D=119

Step-by-step explanation:

First, fine the value of x, than use that in each angle to find the measurement.

All angles together in the triangle equal 180

Set your formula up as

180=(x+2)+(3x-9)+7x

180=x+3x+7x+2-9

180-2+9=11x

187=11x

187/11=x

17=x

Angle B

B=x+2

B=17+2

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C=3*17-9

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Now add all 3 tougher to check your work

19+42+119 = 180

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