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2 years ago

What is one tenth of .2?

Mathematics

2 answers:

rosijanka [135]2 years ago

5 0

The answer would be 0.02, I believe

Tamiku [17]2 years ago

5 0

One tenth of .2 is 0.02

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How many solutions are there to

Alika [10]

Answer:

Step-by-step explanation:

there are infinitely many solutions since different values of x and y will work for this simultaneous equation

8 0

2 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

5 0

2 years ago

Triangle ABC is similar to triangle DEF . The length of AC¯¯¯¯¯ is 12 cm. The length of BC¯¯¯¯¯ is 18 cm. The length of DF¯¯¯¯¯

krok68 [10]

If you make a proportion,
12 18
--- = ---
10 x
when you cross multiply
12x=180
x=15
EF= 15

5 0

3 years ago

Read 2 more answers

Solve for x rounding to nearest tenth

Lina20 [59]

X = 13.26

here’s a photo with the work if that helps at all :)

6 0

2 years ago

⎩

Norma-Jean [14]

Answer:

− 11 − 8 ( n − 1 ) g(n)=-11-8(n-1) g(n)=−11−8(n−1)g

Step-by-step explanation:

Left parenthesis, n, right parenthesis, equal, minus, 11, minus, 8, left parenthesis, n, minus, 1, right parenthesis.

3 0

2 years ago