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WINSTONCH [101]
3 years ago
12

1. 2x -1>6 Can someone solve this for me plzzzz

Mathematics
1 answer:
Feliz [49]3 years ago
6 0

Answer:

solve it like there's and equals sign

Step-by-step explanation:

2x-1=6

+1+1

<u>2x</u>=<u>7</u>

2 2

x=3.5

then put the greater than sign back

x>3.5

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Answer:

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Step-by-step explanation:

The vertex form of an equation of a parabola y = ax² + bx + c:

f(x)=a(x-h)^2+k

(h, k) - vertex

h=\dfrac{-b}{2a},\ k=f(h)

We have the equation:

y=3x^2-12x+4\\\\a=3,\ b=-12,\ c=4

Substitute:

h=\dfrac{-(-12)}{2(3)}=\dfrac{12}{6}=2\\\\k=f(2)=3(2^2)-12(2)+4=3(4)-24+4=12-24+4=-8

Finally:

y=3(x-2)^2+(-8)=3(x-2)^2-8

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