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2 years ago

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The vertex of this parabola is at (-3,2). Which of the following could be its equation?

2 answers:

VashaNatasha [74]2 years ago

7 0

vertex form of a parabola

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

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

y = a(x+3)^2 +2

Choice B

Gnoma [55]2 years ago

5 0

Answer:

The answer is B.

Step-by-step explanation:

When you have an equation in vertex form, we can find the x value of the vertex by looking in the parenthesis. The opposite number as is being added to x is the x value. Since we are looking for -3, we are looking for a positive 3 in the parenthesis. This leaves us with just A and B.

On the outside, the constant is the y value of the vertex. Since we are looking for a positive 2, we know B is the correct choice.

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Answer:

$H0: mu = 8.9 fl oz.\\\\$

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Step-by-step explanation:

Given that A perfume company claims that the mean weight of ther new perfume is at least 8.9 fluid oz

For testing this claim, in Statistics we perform a certain measures called hypothesis testing.

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Normally null hypothesis would have some statistic = something

Here we want to test the mean weight of perfume

Hence null hypothesis would be

H0: mu = 8.9 fl oz.

Alternate hypothesis would be opposite of this claim

i.e.

Ha: mu ≠8.9 fluid oz

Hence answer is

$H0: mu = 8.9 fl oz.\\\\$

$Ha: mu ≠8.9 fluid oz$

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