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Orlov [11]
3 years ago
10

FIRST TO ANSWER RECIEVES BRAINLIEST

Mathematics
1 answer:
weeeeeb [17]3 years ago
3 0

Answer:

C)

Step-by-step explanation:

As it is 60 degree, and the whole circle is 360 degree, so we need to find 1/6 of the circumference of a circle, as C = 2*pi*r = 2*pi*3 = 6pi and 1/6 of it is pi.

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Set X consists of 100 numbers. The average (arithmetic mean) of set X is 10, and the standard deviation is 4.6. Which of the fol
kompoz [17]

Answer:

E. 10 and 10

Step-by-step explanation:

Standard Deviation is the square root of sum of square of the distance of observation from the mean.

Standard deviation(\sigma) = \sqrt{\frac{1}{n}\sum_{i=1}^{n}{(x_{i}-\bar{x})^{2}} }

where, \bar{x} is mean of the distribution.

Here, since standard deviation is the ratio of the distance from the mean and sample size. So for decreasing the standard deviation we should keep numerator constant and increasing the denominator.

This can be only possible in option (E).

Hence, only Option (E) is correct.

5 0
3 years ago
3[(8-2)-5]+7 í need help on this answer
Anna11 [10]

Answer:

10

Step-by-step explanation:

3[(8-2)-5]+7

3[6-5]+7

3[1]+7

3+7

10

6 0
3 years ago
What are the domain and range of f(x)=[1/5]x
Ber [7]

Answer:

Domain: All real numbers

or

(-\infty,+\infty)

Range: All real numbers

Or

(-\infty,+\infty)

Step-by-step explanation:

The given function is f(x)=\frac{1}{5}x


This a polynomial function of degree 1.


Polynomial functions are continuous everywhere.


The function is therefore defined for all real values of x.


The domain is (-\infty,+\infty)


If we let y=\frac{x}{5}


Then, x=5y.


x is also defined for all real values of y, hence the range is also all real numbers or (-\infty,+\infty)


4 0
3 years ago
Using f(x)= -4x+9 solve f(c+2)
Arada [10]

Answer:

Step-by-step explanation:

f(x)= -4x+9 solve f(c+2)

f(c+2) = - 4 (c+2)+9 = -4c -8+9

f(c+2) = - 4c +1

7 0
2 years ago
Help a woman out here A
IgorLugansk [536]

Answer:

Step-by-step explanation:

4 0
2 years ago
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