2 years ago

Which of the following is an example of a proper fraction?

Mathematics

2 answers:

Snezhnost [94]2 years ago

8 0

C. 3/4 because the numerator is smaller than the denominator

mart [117]2 years ago

3 0

3/4 is a proper fraction because it is less than 1 and the numerator is less than the denominator.

Hope this helps!

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Given a sample mean difference of 23, a standard error of 4.2, and a critical t value of 2.262, what are the values for the conf

erastova [34]

Answer: (13.4996, 32.5004)

Step-by-step explanation:

The confidence interval for mean difference is given by :-

$(\overline{x}_1-\overline{x}_2)\pm t^*\times SE$ ,

where $(\overline{x}_1-\overline{x}_2)$ = sample mean difference .

$t^*$ = critical t value (two-tailed)

SE= Standard error.

Given : $(\overline{x}_1-\overline{x}_2)=23$

$t^*=2.262$

SE= 4.2

Now, the confidence interval for mean difference will be :-

$23\pm (2.262)\times (4.2)\\\\= 23\pm9.5004\\\\=(23-9.5004,\ 23+9.5004)\\\\=(13.4996,\ 32.5004)$

Hence, the required confidence interval : (13.4996, 32.5004)

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kiruha [24]

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Translate the following sentence into an equation, then find the number. Five times a number less than 18 is is equal to 13.

Nata [24]

Answer:

The answer would be 5x-18=13

Step-by-step explanation:

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C(1, 6) ; y=4x+1<br> Put answer in slope intercept form

alina1380 [7]

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slope intercept form is y=mx+b

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all you do is plug the numbers in

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