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2 years ago

100 points and brainliest if you answer correctly!!

Mathematics

1 answer:

nirvana33 [79]2 years ago

3 0

P=10000

R=7.2%

T=7years

Interest be I

$\\ \sf\longmapsto I=\dfrac{PRT}{100}$

$\\ \sf\longmapsto I=\dfrac{10000(7.2)(7)}{100}$

$\\ \sf\longmapsto I=504$

Total paid=10000+504=10504$

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How many models of 100 do you need to model 2,700

Mariana [72]

Answer:

Step-by-step explanation:

well 20 models of 100's=2,000

so now we have 700 left over

so to get to 700 how many 100's does it take=7

so put those 2 numbers together 27

Hope it helps have a great day :}

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2 years ago

You start at (0, 1). You move down 4 units and up 4 units. Where do you end? I need asap

LekaFEV [45]

Answer:

(0,1)

Step-by-step explanation:

Cause you move down 4 units and up 4 units

You just went down 4 units and came back to where you start at.

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3 years ago

A 95% confidence interval for a population mean is computed from a sample of size 400. Another 95% confidence interval will be c

Anna [14]

Answer:

The interval from the sample of size 400 will be approximately <u>One -half as wide</u> as the interval from the sample of size 100

Step-by-step explanation:

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the 95% confidence interval is dependent on the value of the margin of error at a constant sample mean or sample proportion

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma}{\sqrt{n} }$

Here assume that $Z_{\frac{\alpha }{2} } \ and \ \sigma \$ is constant so

$E = \frac{k}{\sqrt{n} }$

=> $E \sqrt{n} = K$

=> $E_1 \sqrt{n}_1 = E_2 \sqrt{n}_2$

So let $n_1 = 400$ and $n_2 = 100$

=> $E_1 \sqrt{400} = E_2 \sqrt{100}$

=> $E_1 = \frac{\sqrt{100} }{\sqrt{400} } E_2$

=> $E_1 = \frac{1}{2 } E_2$

So From this we see that the confidence interval for a sample size of 400 will be half that with a sample size of 100

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2 years ago

A pre-algebra book is 8 1 half inches by 9 1 fourth inches. Determine the perimeter of the textbook.

Arisa [49]

Answer:

Rectangular book--

two 8 1/2 sides

two 9 1/4 sides

8 1/2*2=17

9 1/4*2=18 1/2

17+18 1/2= 35 1/2

The perimeter of the textbook is 35 1/2 inches or 35.5 inches.

-this is not mine btw creds to sunflowerem :))

8 0

3 years ago

17. Higher Order Thinking Solve h - 156 = 34

vaieri [72.5K]

Answer: h = 190.

Step-by-step explanation: You have to use the reverse so, the opposite of subtraction is addition, so 156 + 34 = 190. 190 which is the "h" 190 - 156 = 34

8 0

3 years ago