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Lelu [443]
3 years ago
7

What is the solution to this inequality? +8<5

Mathematics
1 answer:
tankabanditka [31]3 years ago
6 0

Answer:

-7 + 8 > 5

Step-by-step explanation:

The left side  

1

is less than the right side  

5

, which means that the given statement is always true.

True

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Consider a population list x, with a CV= 10%. A second population list, y, has a CV= 20%. The linear regression of y on x is y =
ch4aika [34]

Answer:

The correlation coefficient 0.5 depicts that there is moderate positive correlation between y and x.

Step-by-step explanation:

The linear regression equation is

y= a+bx

The given linear equation is

y= 10x

Here, slope=b=10 and intercept=a=0.

From above equation,

ybar=10xbar

We are given that CVx=0.1 and CVy=0.2

where CV=(standard deviation/mean)*100

We know that

b=r(Sy/Sx)

Multiplying by xbar/ybar on both sides

(xbar/ybar)b=r(Sy/Sx)(xbar/ybar)

(xbar/ybar)b=r[(Sy/ybar)/(Sx/xbar))]

(xbar/ybar)b=r[CVy/CVx]

As CVy/CVx=(Sy/ybar)*100/(Sx/xbar)*100=(Sy/ybar)/(Sx/xbar).

By putting ybar=10xbar, b=10, CVx=0.1 and CVy=0.2.

(xbar/10xbar)10=r(0.2/0.1)

1=r(0.2/0.1)

1=r(2)

r=0.5

There is moderate positive correlation between y and x.

6 0
2 years ago
For this figure what is the value of X?<br><br> How did you solve this?
Ivanshal [37]

Answer:

x=60

Step-by-step explanation:

This is a parallelogram.

For a parallelogram,

sum of angles in one side is 180.

we know, in a parallelogram,

the consecutive angles are supplementary or

their sum is  180.

So, we get,

x+33+87=180

or, x+120=180

subtracting   120

x+120-120=180-120

or, x=60

6 0
3 years ago
An item is regularly priced at $20 . It is on sale for 85% off the regular price. What is the sale price?
Pie
20/100=.20•85=17 so 17 is the answer
6 0
3 years ago
Read 2 more answers
2x + 6y= 8<br> 4x + 12y = 16
Korolek [52]

Answer:

x=0 , y=0

Step-by-step explanation:

2x +6y= 8 .....eqn 1

4x +12y= 16....eqn2

we multiply eqn 1 by 2.. because we want at least one variable to have the same coefficient so we can simply.

2x +6y =8... ×2

will give you 4x +12y = 16....eqn 3

so now we subtract eqn 2 from eqn 3

4x + 12y= 16

- 4x + 12y = 16

_____________

0 + 0 = 0

therefore x = 0 and y= 0

3 0
3 years ago
What's the answer ?????
kicyunya [14]
The fourth one: the slope from point O to point A is two times the slope of the line from point A to point B
7 0
3 years ago
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