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3 years ago

Peter started to deposit 5000 monthly in a fund that pays 1%compounded monthly .how much will be in the fund after 8 months?

Mathematics

1 answer:

Keith_Richards [23]3 years ago

4 0

Answer:

43200 assuming he put 5000 in the fund every month not just the first one.

Step-by-step explanation:

I hope this helps.

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Lifetimes of AAA batteries are approximately normally distributed. A manufacturer wants to estimate the standard deviation of th

AURORKA [14]

Answer:

95% confidence interval for the population standard deviation of the lifetimes of the batteries produced by the manufacturer.

(8.889, 11.7106)

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 23

Mean of the sample x⁻ = 10.3

Standard deviation of the sample (s) = 2.4

Level of significance = 0.05

Degrees of freedom = n-1 = 23-1 =22

Step(ii):-

95% confidence interval for the population standard deviation of the lifetimes of the batteries produced by the manufacturer.

$(x^{-} - t_{\frac{\alpha }{2} } \frac{S}{\sqrt{n} } , x^{-} +t_{\frac{\alpha }{2} } \frac{S}{\sqrt{n} } )$

$(10.3 - t_{\frac{0.05}{2} } \frac{2.4}{\sqrt{23} } , 10.3 +t_{\frac{0.05}{2} } \frac{2.4}{\sqrt{23} } )$

(10.3 - 2.8188 (0.50043) , 10.3 + 2.8188(0.50043)

(10.3-1.4106 , 10.3+1.4106)

(8.889, 11.7106)

final answer:-

95% confidence interval for the population standard deviation of the lifetimes of the batteries produced by the manufacturer.

(8.889, 11.7106)

8 0

3 years ago

Use the following image to answer the question:

Cloud [144]

Answer:

the answer is the state trial.

Step-by-step explanation:

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Solve the system of linear equations by substitution.

Darya [45]

-X-8+8=-y+8
-x= -8y
X=8y

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A triangle has sides with lengths of 5x-7, 3x-4, and 2x-6. what is the simplified expression for t h e perimeter of the triangle

Lena [83]

$5x-7+3x-4+2x-6=10x-17$

7 0

3 years ago

Graph the two lines y=2x + 5 and y= x -1 what is the the x-value of the point where they intersect

Vaselesa [24]

Answer:

x=-6

Step-by-step explanation:

y=2x + 5

y= x -1

Plug in the equation for y

x-1=2x+5

Combine like terms

-1=x+5

-6=x

Hope this helps! Please mark brainliest :)

7 0

3 years ago