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BlackZzzverrR [31]

3 years ago

10

At the beginning of 2012 Jacobs savings account had 675.20. He deposited 40 each month and earned 66.50 interest for the year. W

hat was the percent of increase for Jacobs savings account at the end of the year to the nearest whole percent

1 answer:

mamaluj [8]3 years ago

5 0

I'm going to help
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16. What is the value of 2 1/8x4 3/4

Aneli [31]

Answer:

10/3/32

Step-by-step explanation:

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2 years ago

Fifty- three students from 32 different schools signed up for a multi-classroom project. About how many students signed up for t

inessss [21]

Hello there.

<span>Fifty- three students from 32 different schools signed up for a multi-classroom project. About how many students signed up for the project?

</span><span>B. about 1,800 students
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3 years ago

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Virty [35]

42-7=35 is an equation

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3 years ago

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"How much do students pay, on average, for textbooks during the first semester in college? From a random sample of 400 students

dezoksy [38]

Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

Step-by-step explanation:

Since we have given that

Sample size = 400

Mean = $357.75

Standard deviation = $37.89

At 95% confidence level, z = 1.96

We first find the margin of error.

Margin of error is given by

$z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1.96\times \dfrac{37.89}{\sqrt{400}}\\\\=3.71$

95% confidence interval would be

$\bar{x}\pm \text{margin of error}\\\\=357.75\pm 3.71\\\\=(357.75-3.71,357.75+3.71)\\\\=(354.04,361.46)$

Hence, the margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

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3 years ago

The 12th term in a sequence with a common difference of-9 is -106. which of the following formulas can be used to represent this

Effectus [21]

Answer:

T12=a-99=106

Step-by-step explanation:

that's the answer

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2 years ago