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3 years ago

What is the independent variable

Mathematics

2 answers:

madam [21]3 years ago

6 0

Answer:

independent = how much something you have

dependent = how much that you can buy

Step-by-step explanation:

Ahat [919]3 years ago

4 0

Answer:

independent = how much money you have

dependent = how much you can buy

Step-by-step explanation:

Independent variable definition. An independent variable is a variable that represents a quantity that is being manipulated in an experiment. A dependent variable represents a quantity whose value depends on those manipulations

please look at this. i dont know if i am 100% sure

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write a problem involving addition subtraction multiplication or division of integers and include the answer

jenyasd209 [6]

7+(-3)=4
Because positive and negative remains a negative or u keep the sign of the larger number the answer would be 4. Hope this helps

8 0

3 years ago

Please please help me out

Veseljchak [2.6K]

Answer:

a) A = p(1 + r)^t

b) A = 500(1 + 0.07)^2=572.45

Step-by-step explanation:

t=2 in b)

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3 years ago

The slope of the line is - 2<br> O True<br> O False

aniked [119]

Answer:

<h2><u>FALSE</u></h2>

Step-by-step explanation:

To find the slope you need to pick two points. Points (2,4) and (4,3) are the points I used. (It does not really matter what points you chose). Now we have to follow the formula to find the slope. The formula can be seen below

Slope (m) = ΔY/ΔX

Now solve

ΔX = 4 – 2 = 2

ΔY = 3 – 4 = -1

Once you have solved it, you take it and make it a fraction

-1/2 = -0.5

3 0

3 years ago

Factor out 30 + 12x. I need hepp

Triss [41]

Answer:

6( 5 + 2x )

Explanation:

30 = 2 x 3 x 5

12x = 2 x 2 x 3 x X

THE COMMON FACTOR IS 2 & 3

SO this is the answer

Hope this helps :)

8 0

3 years ago

The percentage of body fat of a random sample of 36 men aged 20 to 29 found a sample mean of 14.42. Find a 95% confidence interv

Rina8888 [55]

Answer:

$14.42-1.96\frac{6.95}{\sqrt{36}}=12.150$

$14.42+ 1.96\frac{6.95}{\sqrt{36}}=16.690$

So on this case the 95% confidence interval would be given by (12.150;16.690)

Step-by-step explanation:

Previous concepts

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".

$\bar X=14.42$ represent the sample mean

$\mu$ population mean (variable of interest)

$\sigma=6.95$ represent the population standard deviation

n=36 represent the sample size

Solution to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (1)

Since the Confidence is 0.95 or 95%, the value of $\alpha=0.05$ and $\alpha/2 =0.025$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.025,0,1)".And we see that $z_{\alpha/2}=1.96$

Now we have everything in order to replace into formula (1):

$14.42-1.96\frac{6.95}{\sqrt{36}}=12.150$

$14.42+ 1.96\frac{6.95}{\sqrt{36}}=16.690$

So on this case the 95% confidence interval would be given by (12.150;16.690)

5 0

4 years ago

What is the independent variable​

What is the independent variable