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defon
3 years ago
13

Find the percent of change. Round to the nearest tenth of a percent if necessary. 5/4 to 3/8

Mathematics
2 answers:
Neporo4naja [7]3 years ago
5 0
5/4 = 1.25
3/8 = 0.375

1.25 - 0.375 = 0.875

0.875/1.25 x 100 = 70%

answer: decrease 70%
slega [8]3 years ago
3 0
5/4 - 3/8 = 10/8 - 3/8 = 7/8

% change = (7/8 / 3/8) * 100 =  (7/3) * 100 = 700/3 = 233.3  %
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Answer:

(1024.69,\ 1127.31)

Step-by-step explanation:

We know that the sample size was:

n = 300

The average was:

{\displaystyle {\overline {x}}}=1,076

The standard deviation was:

\s = 345

The confidence level is

1-\alpha = 0.99

\alpha=1-0.99\\\alpha=0.01

The confidence interval for the mean is:

{\displaystyle{\overline {x}}} \± Z_{\frac{\alpha}{2}}*\frac{s}{\sqrt{n}}

Looking at the normal table we have to

Z_{\frac{\alpha}{2}}=Z_{\frac{0.01}{2}}=Z_{0.005}=2.576

Therefore the confidence interval for the mean is:

1,076\± 2.576*\frac{345}{\sqrt{300}}

1,076\± 51.31

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This means that <em>the mean planned spending of all Americans who take long summer vacations in 2009 is between $ 1024.69 and $ 1127.31</em>

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In 2000, Bob’s 401(k) fund lost $9000. In 2001, it lost another $10,000, and in 2002, it lost $17,000. In 2003, it gained $16,00
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A function g is described below:
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Answer:

A≈1075.21

d Diameter

37

d

r

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d

d

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A

Using the formulas

A=

π

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d=

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