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AlladinOne [14]
3 years ago
13

Answers A) A B) C C) B

Mathematics
1 answer:
KonstantinChe [14]3 years ago
5 0

Answer:

C.

Step-by-step explanation:

C is correct because when finding the mean you look for the average an there is one outlier who makes it hard to find mean.

Also the two others are similar but the other one doesn't fit in

Hope this helps :)

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I already solved this problem. I just need help with the HINT part.
frutty [35]
x+y=25 \\ y=25-x~~Other~number~in~terms~of~x \\ \\ x^2+y^2=313 \\ x^2+2xy+y^2=313+2xy \\ (x+y)^2=313+2x(25-x) \\ \frac{25^2-313}{2} =25x-x^2 \\ x^2-25x+156 \\ \\ \Delta =(-25)^2-4\times 1\times 156 \\ \Delta =625-624 \\ \sqrt{\Delta}=1 \\ \\ x= \frac{25 \pm 1}{2} \\ x= \left \{ {{x_1=13} \atop {x_2=12}} \right.

     The number "x" is given by:
y= \left \{ {{y_1=25-13 \rightarrow~y_1=12} \atop {y_1=25-12 \rightarrow ~y_1=13}} \right.
  
     Therefore, we have:

\boxed {S=({12,13})} \rightarrow~The~curly~braces~does~not~want~appear~here.
8 0
3 years ago
Simplify the expression. Rewrite using only positive exponents.
Dvinal [7]

The simplified form of the given expression is x^{18}a^{3}b^{3}.

The given expression is (\frac{x^{4}a^{2}b^{3} }{x^{-2}ab^{2}} )^{3}.

We need to simplify the given expression.

<h3>What are the basic laws of exponents?</h3>

The basic laws of exponents are as follows:

a^{m} \times b^{m} =(ab)^{m}

a^{m} \div b^{m} =(\frac{a}{b} )^{m}

a^{m} \times a^{n} =(a)^{m+n}

a^{m} \div a^{n} =(a)^{m-n}

Now, (\frac{x^{6}a^{2}b^{3} }{ab^{2}} )^{3}=(\frac{x^{18}a^{6}b^{9} }{a^{3}b^{6}} )

=x^{18}a^{3}b^{3}

Therefore, the simplified form of the given expression is x^{18}a^{3}b^{3}.

To learn more about the exponents visit:

brainly.com/question/26296886.

#SPJ1

4 0
1 year ago
3/24 =33/x. Use equivalent ratios to find the unknown value
Tasya [4]
X/the answer is 264
because 33 times 24 is 792 and divide that by 3 is 264
hope this helps :)
7 0
3 years ago
I need help on this question
tatuchka [14]
Ax + b = r
subtract ax from both sides:-
ax - ax + b = r - ax  

b = r - ax (answer)
7 0
3 years ago
The survey included 100 different students
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6 0
3 years ago
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