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ohaa [14]
3 years ago
5

Isaac currently has $200 in his savings account. He plans to deposit $20 each week.

Mathematics
2 answers:
antiseptic1488 [7]3 years ago
5 0
Its A i believe :) (Hope you get it right!)
Zepler [3.9K]3 years ago
3 0
I believe the answer is A.
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Step-by-step explanation:

HOPE THIS HELPS, SORRY FOR ALL THE CAPS

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Someone help me find the area please
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Do (10 x 10) then (10 x 20), and then add your two answers together.
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Anna graphs y=4/5x+5 as shown. Select the statements that identify errors,if any,on Anna’s graph
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Please help with solving this problem....!!!
kifflom [539]

Answer:

The Average Temperature for the week is -1°C

Step-by-step explanation:

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-3-4+0-2+0+3-1 = -7

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6 0
3 years ago
An amusement park would like to determine if they want to add in a new roller coaster. In order to decide whether or not they sh
Rzqust [24]

Using the z-distribution, it is found that the 90% confidence interval is given by: (0.6350, 0.6984).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 90% confidence level, hence\alpha = 0.9, z is the value of Z that has a p-value of \frac{1+0.9}{2} = 0.95, so the critical value is z = 1.645.

The sample size and the estimate are given by:

n = 600, \pi = \frac{400}{600} = 0.6667

Hence, the bounds of the interval are given by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6667 - 1.645\sqrt{\frac{0.6667(0.3333)}{600}} = 0.6350

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6667 + 1.645\sqrt{\frac{0.6667(0.3333)}{600}} = 0.6984

The 90% confidence interval is given by: (0.6350, 0.6984).

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

5 0
2 years ago
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