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Andrej [43]
3 years ago
7

What is the vertex form of y=x^2+4x minus 7

Mathematics
1 answer:
Inessa [10]3 years ago
6 0

Answer: Hello Luv........

Complete the square to find the vertex:

   (−2,−11)

Step-by-step explanation:

y=x2+4x−7

=x2+4x+4−11

=(x+2)2−11

Mark me brainest please.

Hope this helps!

Anna ♥

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Answer:

1,297.5

Step-by-step explanation:

Find how many $100 you have in $250,000

250,000 ÷ 100 = 2,500

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Hope this helped! Please mark as brainliest! Thanks!

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3 years ago
You are picking out an outfit to wear for school. You have the option of wearing jeans, a pair of khakis, or a pair of shorts; a
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2 years ago
From a sample of 37 graduate​ students, the mean number of months of work experience prior to entering an MBA program was 35.15.
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Step-by-step explanation:

Formula to find the confidence interval for population mean :-

\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}

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n= sample size.

\sigma = Population standard deviation.

As per given , we have

\overline{x}=35.15

\sigma=18

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Using z-table, the critical z-value for 95% confidence = z* = 1.96

Then, the confidence interval for the population mean will be :

35.15\pm (1.96)\dfrac{18}{\sqrt{37}}

=35.15\pm (1.96)\dfrac{1.7}{6.08276}

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Hence, a 95​% confidence interval for the population​ mean = (29.35, 40.95)

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