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zvonat [6]
3 years ago
7

Urgent please!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
BARSIC [14]3 years ago
4 0
The answer is:  "  16 * ∛12 " ; or, write as:  " 35.631 " .
<span>_____________________________________________________
Explanation:
______________________________________________

" Square root of 16 Cube root of 4 Square root of 4 Cube root of 16"  =

</span>√16 * ∛6 *√4 *∛16 = 

√16 * √4 * ∛6 * ∛16 = 

4 * 2 * ∛6 * ∛16 =

8 * (∛6 * ∛16) = 

8 * (∛(6 * 16) =

8 * (∛96) = ?
_________________________
What are the factors of "96" ?  And do any of them have "perfect cube"? (since "96" does not) ??
_________________________
96:  1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96.___________________________________
Not:  "8" is a perfect cube:  ∛8 = 2 ;

and:  "8 * 12 = 96" ;
_________________________________
  So;  ∛(96) = ∛8 * ∛(12) = 2* ∛(12) .
__________________________________
and:  
___________________________________
 8 * (∛96) = 8 * 2 * ∛(12) ;
___________________________________
                 = 16 * ∛12 ;  or, use a calculator to multiply to find the value:

                 = 36.6308557617066198 ;  round to 35.631   .
___________________________________
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The volume of a cylinder of radius 3r and height 6r is given by TT(3r)2(6r). Simplify the expression.
OLga [1]

Answer: \pi 36r^{2}

Step-by-step explanation:

ALRIGHT ARE YOU READY FOR EPIC MATH TIME?

because i know i am. so lets get this bread.

WATCH: we have \pi (3r)2(6r)

interesting... that first character is called pi. maybe i should have said, "lets get this pi".

so now lets do some algebra. i am going to work from right to left. lets multiply 6r by 2. that gives us 12r. now we have... \pi (3r)(12r)

WE ARE MAKING EPIC PROGRESS, AREN'T WE?

lets multiply 12r by 3r. then we have....

\pi 36r^{2}

notice how i multiplied 12 by 3 and also r by r (which gives 36 and r^{2} respectively)

so your simplified expression is: \pi 36r^{2}

6 0
3 years ago
WILL GIVE BRAINLIEST IF CORRECT!!
vfiekz [6]

Answer:

\displaystyle y=-0.927x+13.63

Step-by-step explanation:

<u>Simple Linear Regression </u>

It a function that represents the relationship between two or more variables in a given data set. It uses the method of the least-squares regression line which minimizes the error between the estimate function and the real data.

Let's compute the best-fit line for the data

x=\{1,5,6,12,15\}

y=\{14,11,4,2,1\}

First, we find the sums

\displaystyle \sum x=1+5+6+12+15=39

\displaystyle \sum y=14+11+4+2+1=32

Then, we compute the averages values

\displaystyle \bar{x}=\frac{39}{5}=7.8

\displaystyle \bar{y}=\frac{32}{5}=6.4

We will also compute the sums of the cross-products and the sum of the squares

\displaystyle \sum xy=(1)(14)+(5)(11)+(6)(4)+(12)(2)+(15)(1)=137

\displaystyle \sum x^2=1^2+5^2+6^2+12^2+15^2=1+25+36+144+225

\displaystyle \sum x^2=431

We will compute Sxy and Sxx

\displaystyle S_{xy}=\sum xy-\frac{\sum x\ \sum y}{n}

\displaystyle S_{xy}=137-\frac{(39)(32)}{5}

\displaystyle S_{xy}=-117.6

\displaystyle S_{xx}=\sum x^2-\frac{(\sum x)^2}{n}

\displaystyle S_{xx}=431-\frac{39}{5}^2=126.8

The slope of the linear regression function is given by

\displaystyle m=\frac{S_{xy}}{S_{xx}}=\frac{-117.6}{126.8}=-0.927

The y-intercept ot the linear function is

\displaystyle b=\bar{y}-b\bar{x}=6.4-(-0.927)(7.8)

\displaystyle b=13.63

Thus the best-fit line is

\displaystyle y=-0.927x+13.63

The correct option is the last one

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3 years ago
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Masja [62]

Answer:

2 Pies. If she cuts the first pie for 5 people she only needs one more pie for the 6th person

Step-by-step explanation:

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