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2 years ago

How is 1 over 9 a rational number?

Mathematics

1 answer:

Kruka [31]2 years ago

7 0

Answer:

Because 1/9 is a fraction with integers meaning it is a fraction with whole numbers.

Step-by-step explanation:

Any number that can be written as a fraction with integers is called a rational number. For example, 17 and −34 are rational numbers. (Note that there is more than one way to write the same rational number as a ratio of integers. For example, 17 and 214 represent the same rational number.)

Hope this helps

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A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 48.0 and 58.

Yanka [14]

Answer: 0.025

Step-by-step explanation:

Given : A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between the interval [48.0 minutes, 58.0 minutes].

The probability density function :-

$f(x)=\dfrac{1}{58-48}=\dfrac{1}{10}$

Now, the probability that a given class period runs between 50.25 and 50.5 minutes is given by :-

$\int^{50.5}_{50.25}\ f(x)\ dx\\\\=\int^{50.5}_{50.25}\ \dfrac{1}{10}\ dx\\\\=\dfrac{1}{10}|x|^{50.5}_{50.25}\\\\=\dfrac{1}{10}\ [50.5-50.25]=\dfrac{1}{10}\times(0.25)=0.025$

Hence, the probability that a given class period runs between 50.25 and 50.5 minutes =0.025

Similarly , the probability of selecting a class that runs between 50.25 and 50.5 minutes = 0.025

5 0

3 years ago

A line passes through the point (0, 2) and has a slope of-1/2

Marta_Voda [28]

The answer is C! Hope this helps!

5 0

3 years ago

-24= 6/7x<br> Solve for x

Diano4ka-milaya [45]

-24 * (7/6) = -28

x = -28

6 0

3 years ago

Factored form of 5x^2+x-3

tekilochka [14]

Answer:

You can't factor that any further.

Step-by-step explanation:

4 0

3 years ago

Express .000879 as a percent

never [62]

Answer:

0.0879% would be the correct answer.

Step-by-step explanation:

You would take .000879 and multiply it by 100

7 0

3 years ago