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2 years ago

How much money is one quarter five nickel three dimes

Mathematics

1 answer:

Rufina [12.5K]2 years ago

4 0

Answer:

$.80 or 80¢

Step-by-step explanation:

US Coin Denominations are as follows:

Quarters: $.25

Dime: $.10

Nickel: $.05

Penny: $.01

We can now use the following

(1*25)+(5*5)+(3*10)=80

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The point Z(6,2) is rotated 180degrees clockwise around the origin.What arethe coordinates of the resulting point Z'

jok3333 [9.3K]

Answer:

$Z' = (-6,-2)$

Step-by-step explanation:

Given

$Z = (6,2)$

Transformation: 180 degrees clockwise around the origin

Required

Determine the new coordinates Z'

<em>When a point (x,y) is rotated 180 degrees clockwise around the origin, the new point is: (-x,-y)</em>

So:

$Z = (6,2)$

Then:

$Z' = (-6,-2)$

7 0

3 years ago

Please help me asap i need it

TiliK225 [7]

Answer:

j) y=2/5x-1

Step-by-step explanation:

you can use desmos graphing calculator to help you on questions like these, all you gotta do is input each answer and you get a visual representation of what they look like. Hope this helps!

6 0

3 years ago

Read 2 more answers

Which symbol correctly compares these fractions? 3 7 ___ 5 14 < > = ×

GarryVolchara [31]

$\frac{3}{7}$ is more than $\frac{5}{14}$ , because:
$\frac{3}{7}$ = $\frac{6}{14}$
6>5

So, the correct sign for this is >.
Have a great day! ♪

7 0

4 years ago

Researchers are interested if a school breakfast program leads to taller children. Assume that the population of all 5 year-old

DedPeter [7]

Answer:

$39-1.96\frac{1}{\sqrt{25}}=38.608$

$39+1.96\frac{1}{\sqrt{25}}=39.392$

So on this case the 95% confidence interval would be given by (38.608;39.392)

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".

$\bar X=39$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

$\sigma=1$ represent the population standard deviation

n=25 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)

The margin of error is given by:

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

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 tabel to find the critical value. The excel command would be: "=-NORM.INV(0.025,0,1)".And we see that $z_{\alpha/2}=1.96$