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timama [110]
2 years ago
8

Chords AB and CB intersect at E in circle O, as shown in the diagram below. Secant

Mathematics
1 answer:
Jobisdone [24]2 years ago
4 0

Answer:

Step-by-step explanation:

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Find the simultaneous equation x-2y=1,y^2-3xy+8=0​
Hitman42 [59]

Answer:

  (-2.2, -1.6), (3, 1)

Step-by-step explanation:

You don't have to go far to find the equations. They are right there in your problem statement. Perhaps you want to find the solutions to the equations.

Use the first equation to write an expression for x, then substitute that into the second equation:

  x = 2y +1

  y^2 -3(2y+1)(y) +8 = 0

  -5y^2 -3y +8 = 0

  -(5y +8)(y -1) = 0

  y = -8/5   or   y = 1

The corresponding values of x are ...

  x = 2(-8/5)+1 = -11/5

  x = 2(1) +1 = 3

The solutions are (x, y) = (-2.2, -1.6) and (3, 1).

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3 years ago
What are the solutions to the equation |x-3|=14
lilavasa [31]
X-3=14
+3    +3
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x-3=-14
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3 years ago
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Kathy distributes jelly beans among her friends. Alia gets 4² fewer beans than kelly who gets 3³ jelly beans. how many jelly bea
grin007 [14]
4^2= 16
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A store sells a pack of 50 widgets for $2, a pack of 120 widgets for $6, and a pack of 200 widgets for $9. Which is the best buy
liubo4ka [24]

Answer:

The first 50 widgets for $2

Step-by-step explanation:

50/2=25

120/6=20

200/9=22.22 repeating

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