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Pavlova-9 [17]
2 years ago
14

Ariane borrows $200 on a 6−year loan. She is charged 5% simple interest per year. How much interest is she charged for 6 years?

What is the total amount she has to pay back?
After 6 years, Ariane is charged $
in interest. She pays a total amount of $
.
64 divided by 68
Mathematics
1 answer:
NeX [460]2 years ago
4 0

<u><em>Hold on, our servers are swamped. Wait for your answer to fully load.</em></u>

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Ill mark brainlest if correct
ehidna [41]
Same here , like somebody please answer thanks
4 0
2 years ago
What is the distance between (–9,-6) and (-2,-2)?
Rufina [12.5K]

Answer:

8.0623

Explanation:

Distance between two points =  √ ( − 2  −  −  9 )^ 2 + ( − 2  −  −  6)^ 2

=  √ 7 ^2+ 4 ^2

= √ 49 +  16

=√ 65  = 8.0623

Distance between points (-9, -6) and (-2, -2) is 8.0623

3 0
3 years ago
Read 2 more answers
A Pew Internet poll asked cell phone owners about how they used their cell phones. One question asked whether or not during the
EastWind [94]

Answer:

a) \hat p=\frac{471}{1024}=0.460

The standard error is given by:

SE= \sqrt{\frac{\hat p(1-\hat p)}{n}}=\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0156

And the margin of error is given by:

ME=z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}=1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0305

b) The 99% confidence interval would be given by (0.429;0.491)

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Data given and notation  

n=1024 represent the random sample taken    

X=471 represent the people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering

\hat p=\frac{471}{1024}=0.460 estimated proportion of people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering    

p= population proportion of people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering

Part a

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=1.96

The standard error is given by:

SE= \sqrt{\frac{\hat p(1-\hat p)}{n}}=\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0156

And the margin of error is given by:

ME=z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}=1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0305

Part b

If we replace the values obtained we got:

0.460-1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.429

0.460+1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.491

The 99% confidence interval would be given by (0.429;0.491)

8 0
2 years ago
I need help with this
adoni [48]
Answer is D
Mark me the brainliest
6 0
2 years ago
There are six nickels and seven dimes in your pocket. Five of the nickels and three of the dimes are Canadian. The others are US
ira [324]
B!



hope this helps, it just seems like the best answe.
7 0
3 years ago
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