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3 years ago

Help me with this please! Complete function table 1.

Mathematics

1 answer:

marissa [1.9K]3 years ago

4 0

Ok, this is fairly simple so all you have to do is plug in x in the equation for example 3 + 2x all you have to do is plug in the x in your case in the first column it'd be 3 + 2 x -4 which is -3

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Can someone pls help me I’m confused ‍♀️

Andre45 [30]

Answer:

.7,.38, .09,-.41, -.6

Step-by-step explanation:

3 0

3 years ago

Blank divided by 12 equals 7 with a remainder of 1

Elodia [21]

7x12=84, plus 1 equals 85.

85/12=7, remainder of 1.

The answer is 85.

8 0

2 years ago

hayley wants to attend bellhaven collage after high school. she knows that the yearly cost is around $17000 per year. her parent

KengaRu [80]

I think the answer is 13,840

to start off use the formula IPRT which stands for interest, principal, rate, and time. so then you do 2,000 times 6% (or 0.06) then times that by 18 which is 2,160 so she earned 2,160 in her college account, next you add the 1,000 and that would make it 3,160. next you subtract 3,160 from 17000 to see how much she still has to pay which i think is 13,840

if this is wrong lmk and i can try to fix it

6 0

2 years ago

Jane had 2/3 of a meter of ribbon. She used 1/4 of a meter of ribbon to decorate a card. How much ribbon did she have left after

Vilka [71]

2/3 - 1/4 =
8/12 - 3/12 =
5/12 <==

7 0

3 years ago

Paint manufacturer uses a machine to fill 1- gallon cans with paint- they want to estimate the mean volume of paint the machine

Triss [41]

Answer:

$n=(\frac{1.64(0.85)}{0.25})^2 =31.09$

So the answer for this case would be n=32 rounded up to the nearest integer

Step-by-step explanation:

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".

$\bar X$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

$\sigma=0.85$ represent the sample standard deviation

n represent the sample size (variable of interest)

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

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

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (1)

And on this case we have that ME =0.25 and we are interested in order to find the value of n, if we solve n from equation (1) we got:

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

The critical value for 90% of confidence interval now can be founded using the normal distribution. And in excel we can use this formla to find it:"=-NORM.INV(0.05,0,1)", and we got $z_{\alpha/2}=1.64$ , replacing into formula (2) we got:

$n=(\frac{1.64(0.85)}{0.25})^2 =31.09$

So the answer for this case would be n=32 rounded up to the nearest integer

5 0

3 years ago