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Svetach [21]
3 years ago
9

Please help meee its dueeeeee

Mathematics
2 answers:
daser333 [38]3 years ago
5 0

Answer:

  • n = 8

Step-by-step explanation:

<u>We know that:</u>

  • 9n = 8n + 8 [Vertically opposite angles]

<u>Solution:</u>

  • 9n = 8n + 8
  • => 9n - 8n = 8
  • => n = 8

Hence, the value of n is 8.

Naya [18.7K]3 years ago
3 0

Answer:

The answer is 8

Step-by-step explanation:

You set the equation 9n=8n+8

Subtract 9n-8n

n=8

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If three points are coplanar they are also collinear true or false
Elza [17]

Answer:

FALSE !

Step-by-step explanation:

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3 years ago
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This line segment will be dilated with the point of dilation at (4,1) and scale factor of 2. What is the x-coordinate of one of
IgorLugansk [536]

Answer:

<h3>8</h3>

Step-by-step explanation:

If a coordinate point (x, y) is dilated by a factor k, then the resulting coordinate will be (kx, ky)

Given the coordinate (4,1), if this coordinate is dilated by a factor of 2 then the new coordinate points will be at (2(4), 2(1))

New point = (8, 2)

Hence  x-coordinate of one of the the end point of the dilated segment is 8

5 0
3 years ago
2 Points
sasho [114]

Answer:

x-3

Step-by-step explanation:

f(x) = 3x - 2

g(x) = 2x + 1,

(f- g)(x) =  3x - 2  - ( 2x+1)

Distribute

            = 3x -2 -2x-1

Combine like terms

             x-3

4 0
4 years ago
How do you find the surface area of a cylinder with
skelet666 [1.2K]

Answer:

2111.15

Step-by-step explanation:

A=2π*r*h+2π*r^2

You plug in your height and radius into the formula for surface area of cylinder

7 0
3 years ago
The mayor of a town has proposed a plan for the construction of a new community. A political study took a sample of 800 voters i
Hunter-Best [27]

Answer:

A political strategist wants to test the claim that the percentage of residents who favor construction is more than  30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: p \leq 0.3

Alternative hypothesis p >0.3

Step-by-step explanation:

We have the following info given from the problem:

n= 800 the random sample of voters selected from the town

\hat p = 0.34 represent the proportion of residents favored construction

p_o = 0.30 represent the value desired to test.

A political strategist wants to test the claim that the percentage of residents who favor construction is more than  30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: p \leq 0.3

Alternative hypothesis p >0.3

And in order to test this hypothesis we can use a one sample z test for a population proportion and the statistic would be given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And with the data given we have:

z=\frac{0.34 -0.3}{\sqrt{\frac{0.3(1-0.3)}{800}}}=2.469  

7 0
3 years ago
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