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Grace [21]
3 years ago
15

What is the value of x?

Mathematics
1 answer:
Aleksandr [31]3 years ago
6 0

Answer:

x = 20

Step-by-step explanation:

these are vertical angles and vertical angles are congruent

3x+50 = 6x-10

3x = 6x - 60

-3x = -60

x = 20

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Answer:C

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* 20 points * help me please.?????........???!
lorasvet [3.4K]
y=ax^2+bx+c

A parabola is open up if a > 0.
The vertex formula: y=a(x-h)^2+k
(h; k) - the coordinates of the vertex
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