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NARA [144]
2 years ago
13

Write the coordinates of the Vertex. Write an equation for the axis of symmetry. Please help!!!!

Mathematics
1 answer:
Snowcat [4.5K]2 years ago
3 0
To find X:
-b/2a=-2/2(-2)=.5
plug in .5 to the equation to find y.
-2(.5)²+2(.5)+1
=1.5
Vertex: (.5,1.5)
Axis of symmetry:
x=.5
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Step-by-step explanation:

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- The sample size n = 800

- The margin of error E:

- The margin of error "E" for estimation of population proportion ( p ) is given by:

                          E = z-critical*\sqrt{\frac{p~ ( 1 - p~ )}{n} }

Where, Z-critical value is defined by the significance level:

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Where, α : Significance level

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                         P ( Z < Z-critical ) = 0.01  

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- The error E of estimation is:

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2 years ago
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Step-by-step explanation:

This is the answer because (Google research):

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Hope this helps!

4 0
3 years ago
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