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Neporo4naja [7]
3 years ago
9

Find two fractions with a sum of 2/3 but with neither denominator equal to 3

Mathematics
1 answer:
Finger [1]3 years ago
5 0
So you can basically just split 2/3 into 2 parts, (1/3 and 1/3)
and than make them so they're not thirds,  like 2/6.
2/6 plus 2/6 = 4/6, so you can just simplify that into 2/3.
Hope it helped :)

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3t/2+4t/3 I need help I suck at math
Mice21 [21]

Answer:

17 /6 t

Step-by-step explanation:

3t2+4t3

=32t+43t

Combine Like Terms:

=32t+43t

=(32t+43t)

=176t

5 0
3 years ago
Read 2 more answers
Help? anyone? please? thank you
Anna [14]

8/1that the answer.......................

4 0
3 years ago
A product comes in cans labeled "38 oz". A random sample of 10 cans had the following weights:
KiRa [710]

Answer:

b. 35.9, 39.1 ounces

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".

barX=37.465 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=2.27 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

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

barX +- t*[(s)/(sqrt{n))]   (1)

In order to calculate the critical value t we need to find first the degrees of freedom, given by:

df=n-1=10-1=9

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: "=-T.INV(0.025,9)".And we see that t_(alpha/2)=2.26

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

37.465-2.26[(2.27)/(sqrt{10))]=35.9    

37.465+2.26[(2.27)/(sqrt{10))]=39.1

So on this case the 95% confidence interval would be given by (35.9;39.1)    

7 0
3 years ago
5. Find the slope of a line perpendicular to the graph of the given equation:
Helen [10]

Answer:

2/7

Step-by-step explanation:

Slope is the number in front of the x

3 0
3 years ago
Need help ASAP, please.
mamaluj [8]

Answer:

  • n = 3
  • (1, 1/6), (-2, 7/6), (5, -7/6)
  • 2x + 6y = 3

Step-by-step explanation:

A graphing program can help a lot in this case. Even without the program, it seems clear from a graph that only the first three points will lie on the same line.

The slope of the line can be found from the first two points as ...

  ∆y/∆x = (7/6 -1/6)/(-2 -1) = (6/6)/-3 = -1/3

Then the point-slope form of the equation can be written as

  y -1/6 = -1/3(x -1)

Multiplying by 6 gives ...

  6y -1 = -2x +2

Adding 2x+1 puts the equation into standard form:

  2x + 6y = 3

7 0
3 years ago
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