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2 years ago

HELP PLEASE I NEED HELP

Mathematics

2 answers:

alexdok [17]2 years ago

7 0

Answer:

9-2=7

Step-by-step explanation:

The range of a data set is the maximum (highest) value/number subtracted from the minimum (lowest) value. So to find the range of this data set, you subtract the largest number 9 by 2 to get the range of 7.

GenaCL600 [577]2 years ago

6 0

Answer:

The range of data is 7

Step-by-step explanation:

To find the data you need to subtract the lowest value from the highest value which is: 9-2=7

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Which graph shows the solution to this system of equations?

Pavlova-9 [17]

Answer:

the third one where they intersect at 2 and -2

Step-by-step explanation:

5 0

3 years ago

What is the scientific notation of this number?<br><br> 0.000000000000000056

matrenka [14]

That's written as 5.6 x 10⁻¹⁷ .

(To change 5.6 into the original number, you'd need to
move the decimal point 17 places backwards.)

6 0

3 years ago

The ages of 11 students enrolled in an on-line macroeconomics course are given in the following steam-and-leaf display:

blsea [12.9K]

Answer:

The standard deviation of the age distribution is 6.2899 years.

Step-by-step explanation:

The formula to compute the standard deviation is:

$SD=\sqrt{\frac{1}{n}\sum\limits^{n}_{i=1}{(x_{i}-\bar x)^{2}}}$

The data provided is:

X = {19, 19, 21, 25, 25, 28, 29, 30, 31, 32, 40}

Compute the mean of the data as follows:

$\bar x=\frac{1}{n}\sum\limits^{n}_{i=1}{x_{i}}$

$=\frac{1}{11}\times [19+19+21+...+40]\\\\=\frac{299}{11}\\\\=27.182$

Compute the standard deviation as follows:

$SD=\sqrt{\frac{1}{n}\sum\limits^{n}_{i=1}{(x_{i}-\bar x)^{2}}}$

$=\sqrt{\frac{1}{11-1}\times [(19-27.182)^{2}+(19-27.182)^{2}+...+(40-27.182)^{2}]}}\\\\=\sqrt{\frac{395.6364}{10}}\\\\=6.28996\\\\\approx 6.2899$

Thus, the standard deviation of the age distribution is 6.2899 years.

7 0

3 years ago

8/x=14/7 what does x equal

Veronika [31]

Answer:

when you have two fractions that equal each other you want to solve by using cross multiply

What cross multiply is, is when you multiply diagonally so:

8/x=14/7

you would take 14*x and 8*7

14x=56 (you would then divide each side by 14)

x=4 (14/14=1, 56/14=4)

8/4=14/7

To check your work you could simplify

8/4=2

14/7=2

2=2, which is true

x=4

Hope this helps ;)

6 0

3 years ago

How do you answer this question?

bekas [8.4K]

Answer:

Divide 12 by 6........................D

5 0

3 years ago

Read 2 more answers