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Rom4ik [11]
3 years ago
14

Please help me solve

Mathematics
1 answer:
romanna [79]3 years ago
3 0

Answer:

The triangle is a 45-45-90 triangle. It is best to remember 45-45-90 triangle and 30-60-90 triangle rules. B.

Step-by-step explanation:

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How many solutions does the system have?<br> y = -3x +9<br> 3y = -9x + 9
Trava [24]

Answer:

{y,x} = {0,1}

Step-by-step explanation:

// Solve equation [1] for the variable  y

 [1]    y = 3x - 3

// Plug this in for variable  y  in equation [2]

  [2]    -3•(3x-3) - 9x = -9

  [2]     - 18x = -18

// Solve equation [2] for the variable  x

  [2]    18x = 18

  [2]    x = 1

// By now we know this much :

   y = 3x-3

   x = 1

// Use the  x  value to solve for  y

   y = 3(1)-3 = 0

8 0
2 years ago
1 7/3 in simplest form
MrMuchimi
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3 years ago
Prove: If a chord of a circle has a common end point with a diameter and makes an angle of 30° with it, prove that the distance
nignag [31]

Step-by-step explanation:

The perpendicular distance between the chord and the center of the circle forms a right triangle with the chord and the radius.  Using trig:

sin 30° = x / (D/2)

sin 30° = 2x / D

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x = D/4

6 0
3 years ago
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