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3 years ago

I need Help plz with Math

Mathematics

2 answers:

SVEN [57.7K]3 years ago

8 0

The answer you are looking for is $33. :)

Oksana_A [137]3 years ago

3 0

The answer is deposit $33 because

53-86=-33
And if you add 33 to negative -33 it’ll equal 0

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Simplify<br><br><br> (3x + 14) + (19x - 35)

Ray Of Light [21]

Answer:

22x -21

Step-by-step explanation:

(3x + 14) + (19x - 35)

Combine like terms

3x+19x + 14-35

22x -21

6 0

3 years ago

I need help with this ASAP

Law Incorporation [45]

Answer:

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Step-by-step explanation:

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3 years ago

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard devia

gtnhenbr [62]

Answer:

$n=(\frac{2.58(58.2)}{1})^2 =22546.82 \approx 22547$

So the answer for this case would be n=22547 rounded up to the nearest integer

Step-by-step explanation:

Let's define some notation

$\bar X$ represent the sample mean

$\mu$ population mean (variable of interest)

$\sigma=58.2$ represent the population standard deviation

n represent the sample size

$ME =1$ represent the margin of error desire

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =+1 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 99% of confidence interval now can be founded using the normal distribution. The significance would be $\alpha=0.01$ and the critical value $z_{\alpha/2}=2.58$ , replacing into formula (b) we got:

$n=(\frac{2.58(58.2)}{1})^2 =22546.82 \approx 22547$

So the answer for this case would be n=22547 rounded up to the nearest integer

3 0

3 years ago

What is the formula for the circumference of a circle using the radius?

marta [7]

We know that:
C=πd Were π(pi)=3,14... and d=diameter
We know that the radious is 2d, so we aply this to the formula and we get that:
C=2πr

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3 years ago

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vitfil [10]

Answer:

D, liner function

Step-by-step explanation:

number of employees goes up every year. If graphed it would be a line.

8 0

2 years ago