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Stells [14]
3 years ago
13

-8,-7,-5,-3,3,5,7,8 find the mean step by step

Mathematics
2 answers:
gavmur [86]3 years ago
6 0
-8 + -7 + -5 + -3 + 3 + 5 + 7 + 8
_______________________
8

0
___
8



your answer is 0!

Paraphin [41]3 years ago
5 0
Mean= Add all numbers and divide them by 8

-8 + -7 + -5 + -3 + 3 + 5 + 5 + 7 + 8 = 5

5 / 8 = 0.625



Answer = 0.625
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According to the rational root theorem, which number is a potential root of
11Alexandr11 [23.1K]
Potential roots have the format

factors of the constant term
-------------------------------------
factors of the initial term

Here, 7/3 is the only possible root that has a 7 in the numerator and a factor of 9 in the denominator.

Verify that 7/3 is a root using synthetic division.
6 0
3 years ago
Write the equation of a hyperbola with vertices at (-4, 0) and (4, 0) and co-vertices (0, 5) and (0, -5).
sukhopar [10]

Answer:

The answer to your question is  \frac{x^{2}}{16} - \frac{y^{2} }{25} = 1

Step-by-step explanation:

Data

(-4, 0)   (4, 0)

(0, 5)    (0, -5)

Plot the point to determine if it is a horizontal or vertical hyperbola

It is a horizontal hyperbola because the vertices are in a horizontal line. The center is (0, 0).

a = 4

b = 5

Formula

              \frac{x^{2} }{a^{2}} - \frac{y^{2}}{b^{2}} = 1

Substitution

             \frac{x^{2}}{4^{2}} - \frac{y^{2}}{5^{2}} = 1

Equation

            \frac{x^{2}}{16} - \frac{y^{2}}{25} = 1

3 0
3 years ago
Which line is parallel to the line
UkoKoshka [18]
I think its b , but iam not sure
5 0
3 years ago
5. Samantha wants to buy a new cell phone that costs $250. She has already
german

Answer:

A)5 is the answer because she already has 75 + 25=100 and she needs 150 more so 150÷25=5

6 0
2 years ago
Complete the table by converting each decimal to a fraction.
AlekseyPX

if you've read those links already, you'd know what we're doing here.

we'll move the repeating part to the left-side of the dot, by multiplying by "1" and as many zeros as needed, or 10 at some power pretty much.

on 0.13 we need 100 to get 13.13.... and on 0.1234, we need 10000 to get 1234.1234....


\bf 0.\overline{13}~\hspace{10em}x=0.\overline{13}
\\\\[-0.35em]
~\dotfill\\\\
\begin{array}{|lll|ll}
\cline{1-3}
&&\\
100\cdot 0.\overline{13}& = & 13.\overline{13}\\
100\cdot x&& 13 + 0.\overline{13}\\
100x&&13+x
\\&&\\
\cline{1-3}
\end{array}\implies \begin{array}{llll}
100x=13+x\implies 99x=13
\\\\
x=\cfrac{13}{99}
\end{array}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
0.\overline{1234}~\hspace{10em}x=0.\overline{1234}
\\\\[-0.35em]
~\dotfill


\bf \begin{array}{|ccc|ll}
\cline{1-3}
&&\\
10000\cdot 0.\overline{1234}&=&1234.\overline{1234}\\
10000\cdot x&=&1234+0.\overline{1234}\\
10000x&=&1234+x
\\&&\\
\cline{1-3}
\end{array}\implies \begin{array}{llll}
10000x=1234+x
\\\\
9999x=1234\implies x=\cfrac{1234}{9999}
\end{array}

7 0
3 years ago
Read 2 more answers
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