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2 years ago

Need answers for this

Mathematics

1 answer:

pav-90 [236]2 years ago

5 0

Answer:

Step-by-step explanation:

<h3>Mean, Median,mode</h3>

$\boxed{Mean = \dfrac{Sum \ of \ all \ data}{number \ of data}}$

$\sf = \dfrac{234 + 247 + 236+212+248+243+176+195}{8}\\\\= \dfrac{1791}{8}\\\\= 223.875$

<h3>Median:</h3>

Arrange the numbers in ascending order.

176 , 195 , 212 , 234 , 236 , 243 , 247, 248

Number of data is even. So, median will be the average of 234 and 236

Median = average of the middle two terms.

$\sf = \dfrac{234+236}{2}\\\\ =\dfrac{470}{2}\\\\= 235$

Mode is the data which is occurring more number of times.

Range = maximum - minimum

= 248 - 176

= 72

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Let a = x^2 + 4. Rewrite the following equation in terms of a and set it equal to zero. ( x^2 + 4 )^2 +32 = 12x^2 + 48

Aleks04 [339]

Answer: In the resulting equation: " a² - 12a + 32 = 0 " ;
________________________________________________________
The "coefficient" of the "a" term is: " - 12" .
________________________________________________________
The "constant" is: " 32 " .
________________________________________________________

Explanation:
________________________________________________________

Let: "a = x² + 4 " .

Given: (x² + 4)² + 32 = 12x² + 48 ;
______________________________________________________

Factor: "12x² + 48" into " (x² + 4) " ;

"12x² + 48" = 12 (x² + 4) " ;
______________________________________________________

Given: (x² + 4)² + 32 = 12x² + 48 ;

rewrite as; "a² + 32 = 12a " ;

Subtract "12a" from each side of the equation;

"a² + 32 - 12a = 12a - 12a ;

to get:

" a² - 12a + 32 = 0 " .
___________________________________________________
The coefficient of the "a" term; that is:

The "coefficient" of " -12a" ; is: "- 12" .

The constant is: "32<span>" .
</span>___________________________________________________

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3 years ago

Jack has a mask collection of 500 masks. He keeps 235 of the masks on his wall. What percentage of Jack's mask collection does h

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Answer:

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