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Svetach [21]
2 years ago
12

Help pls and just come for the points

Mathematics
2 answers:
Kryger [21]2 years ago
7 0

Answer:

5

Step-by-step explanation:uhhh

Ivenika [448]2 years ago
4 0

Answer:

the last one i think

Step-by-step explanation:

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6 + 5/9 what is the answer
svetoff [14.1K]

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6.5 i think im not smart

Step-by-step explanation:

5 0
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Factor completely:<br><br> 6z2 + 18z
9966 [12]

Answer:

6z(z+3)

Step-by-step explanation:

6z square + 18z

take common..

6z(z+3)

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What is the total volume of the figure? Pls help
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Step-by-step explanation:

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What is the effect on the graph of f(x)=1/x when it is transformed to g(x)=1/x+9?
Allushta [10]

Answer: A is the correct answer

4 0
3 years ago
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
3 years ago
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