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bekas [8.4K]
3 years ago
14

URGENT

Mathematics
2 answers:
matrenka [14]3 years ago
7 0
The mean is the average. You calculate it by adding all the numbers up in the data set and divide by how many numbers there are in the data set.

So:

\sf Mean=\dfrac{70+68+72+66+68+69+66+71+74+66}{10}\rightarrow\dfrac{690}{10}\rightarrow\boxed{\sf 69}
Sedaia [141]3 years ago
4 0

Answer:

The answer is 69. Hope this helps.

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6) 0.5334 how do I show my work ​
Goshia [24]

Answer:

Step-by-step explanation                              if u know how  to use standered algorithim just divide the same way you divided  p.s the answer is 11.2485939258 .

3 0
3 years ago
How do I simplify this?
Fudgin [204]
This is the theory of algebra, to simply the expression we proceed as follows;
[sqrt(x-2)+5/sqrt(x-2)]/(x-2)
simplifying the numerator we get:
sqrt(x-2)+5/sqrt(x-2)
=[x-2+5]/sqrt(x-2)
=(x+3)/sqrt(x-2)
therefore our entire expression will be:
[(x+3)/sqrt(x-2)]/(x-2)
[(x+3)/(x-2)^(1/2)]*1/(x-2)
applying the law if indices we get
=(x+3)/(x-2)^(3/2)
7 0
3 years ago
Solve for " x " <br><br><img src="https://tex.z-dn.net/?f=x%20%3D%20%2042%20-%209" id="TexFormula1" title="x = 42 - 9" alt="x =
disa [49]

\implies {\blue {\boxed {\boxed {\purple {\sf {x\:=\:33}}}}}}

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

x = 42 - 9

➼\:x = 33

Therefore, the value of x is 33.

\sf\pink{Thank\:you. \:ヅ}

7 0
3 years ago
Read 2 more answers
Find the coefficient of the x7y2term in the binomial expansion of (x+y)^9
statuscvo [17]

Answer:

36

Step-by-step explanation:

first, see the formula in the attached picture.

now, by applying that formula we get :

the coefficient of the x7y2 is :

9C7 = 36  (you can either use a calculator or just the algebraic formula)

8 0
3 years ago
What is 21.3 as a fraction???
ElenaW [278]
Hi,

21.3 = \frac{213}{10}

Hope this helps.
r3t40
5 0
2 years ago
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