3 years ago

(-8-3i) - (-9-5) the difference is ?

Mathematics

1 answer:

OLEGan [10]3 years ago

4 0

Answer:

The answer is 6-3 i

Step-by-step explanation:

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Ginny has two vegetable gardens.In the second garden,Ginny grows tomatoes every 3 years.This year,Ginny grows tomatoes in both g

kherson [118]

So it would be in six years because if you do it, it would be
garden 1: 2,4,6,8
garden 2: 3,6,9
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3 years ago

A Confidence interval is desired for the true average stray-load loss mu (watts) for a certain type of induction motor when the

Vaselesa [24]

Answer:

A sample size of 35 is needed.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the width W as such

$W = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

How large must the sample size be if the width of the 95% interval for mu is to be 1.0:

We need to find n for which W = 1.

We have that $\sigma^{2} = 9$ , then $\sigma = \sqrt{\sigma^{2}} = \sqrt{9} = 3$ . So

$W = z*\frac{\sigma}{\sqrt{n}}$

$1 = 1.96*\frac{3}{\sqrt{n}}$

$\sqrt{n} = 1.96*3$

$(\sqrt{n})^2 = (1.96*3)^{2}$

$n = 34.57$

Rounding up

A sample size of 35 is needed.

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3 years ago

Me need a lot of help

miv72 [106K]

D.) 82.45
I hope you have a good day!

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2 years ago

Half of your baseball card collection got wet and was ruined. You bought 11 cards to replace some that were lost. How many did y

AveGali [126]

Hmmmmm....Im guessing in this question you add..When you add it's 35.So I started with 35. Hope this helps! (;

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Not sure but a guess that the answer is
C. 84 m^2

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4 years ago

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