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2 years ago

5

Is 0.8 a rationol number

2 answers:

olga55 [171]2 years ago

6 0

Hello.

The answer is: yes

A rational number is any number that can be repesented as a fraction. So every integer is also a rational number (because it can be written as a fraction with the denominator 1)

Have a nice day

vlabodo [156]2 years ago

4 0

Yes because (i) it’s decimal number with a finite number of decimals and (ii) you can write it as a fraction, see pic.

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Evaluate x1 - x-1 + x0 for x = 2.

Gnoma [55]

Hi! For this problem, you must replace the letter “X” with the number 2. Your equation will then be (2*1)- (2-1)+ (2*0). This will then simplify to: 2 - 1 + 0. Therefore, your final answer will be:

1

6 0

2 years ago

Please Tell me what the answer

Helga [31]

OK for number 3is 70because you add the number that they give you and then subtract 36 106 and you get your answer

3 0

3 years ago

Find the mean median mode and range for the following data 77 60 59 70 89 95

Advocard [28]

Answer:

Mean = 75

Median = 73.5

Mode = 95

Range = 36

Step-by-step explanation:

Given:

77,60,59,70,89,95

Sort:

59,60,70,77,89,95

To find:

Mean
Median
Mode
Range

Mean:

$\displaystyle \large{\dfrac{1}{n}\sum_{i =1}^n x_i = \dfrac{x_1+x_2+x_3+...+x_n}{n}}$

Sum of all data divides by amount.

$\displaystyle \large{\dfrac{59+60+70+77+89+95}{6}=\dfrac{450}{6}}\\\\\displaystyle \large{\therefore mean=75}$

Therefore, mean = 75

Median:

If it’s exact middle then that’s the median. However, if two data or values happen to be in <em>middle</em>:

$\displaystyle \large{\dfrac{x_1+x_2}{2}}$

From 59,60,70,77,89,95, since 70 and 77 are in middle:

$\displaystyle \large{\dfrac{70+77}{2} = \dfrac{147}{2}}\\\displaystyle \large{\therefore median = 73.5}$

Therefore, median = 73.5

Mode:

The highest value or/and the highest amount of data. Mode can have more than one.

From sorted data, there are no repetitive data nor same data. Consider the highest value:

Therefore, mode = 95

Range:

$\displaystyle \large{x_{max}-x_{min}}$ or highest value - lowest value

Thus:

$\displaystyle \large{95-59 = 36}$

Therefore, range = 36

7 0

1 year ago

What term describes a polygon that has no "dents" in it?

svetoff [14.1K]

A convex polygon
Hope this helps :)

3 0

3 years ago

HELP ASAP 36 POINTS!!!!!

vodomira [7]

Answer:

48

Step-by-step explanation:

6 0

2 years ago