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Lapatulllka [165]
3 years ago
13

C.(x,y) (x-5,y+3) D.(x,y) (x+3,y-5) Geometry math question

Mathematics
2 answers:
laiz [17]3 years ago
8 0

The correct answer is D. (x,y) -> (x + 5,y - 3) because R(-4,0); R'(1,-3); -4 + 5 = 1 and 0 -3 = -3;

stepladder [879]3 years ago
3 0

The correct answer is D. (x,y) -> (x + 5,y - 3) because R(-4,0); R'(1,-3); -4 + 5 = 1 and 0 -3 = -3;

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Artemon [7]

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The answer is 25.50

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ankoles [38]

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7 0
2 years ago
A researcher claims that the variation in the salaries of elementary school teachers is greater than the variation in the salari
guajiro [1.7K]

Answer:

a

The null hypothesis is  H_o :  \sigma^2_1 = \sigma^2 _2

The alternative hypothesis is H_a :  \sigma_1 ^2 > \sigma^2_2

b

F_{critical} = 1.8608

c

F = 2.9085

d

    The decision rule is  

Reject the null hypothesis

e

There is sufficient evidence to support the researchers claim

Step-by-step explanation:

From the question we are told that

 The first sample size is  n_1 = 30

 The sample variance for elementary school is  s^2_1 = 8324

 The second sample size is  n_2 = 30

  The sample variance for the secondary school is  s^2_2 = 2862

   The significance level is  \alpha = 0.05

The null hypothesis is  H_o :  \sigma^2_1 = \sigma^2 _2

The alternative hypothesis is H_a :  \sigma_1 ^2 > \sigma^2_2

Generally from the F statistics table  the critical value of \alpha = 0.05 at first and  second degree of freedom df_1 = n_1 - 1 = 30 - 1 = 29 and  df_2 = n_2 - 1 = 30 - 1 = 29 is  

         F_{critical} = 1.8608

Generally the test statistics is mathematically represented as

       F = \frac{s_1^2 }{s_2^2}

=>   F = \frac{8324 }{2862}

=>   F = 2.9085

Generally from the value obtained we see that  F >  F_{critical } Hence

   The decision rule is  

Reject the null hypothesis

    The conclusion is  

  There is sufficient evidence to support the researchers claim

   

4 0
2 years ago
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nordsb [41]

Answer:

74

Step-by-step explanation:

take 32 and subtract from 180 degrees... then divide that by 2

8 0
2 years ago
A recipe for guacamole uses 12% lime juice, if a batch contains 0.75 cup of lime juice, how large is the batch of guacamole?
FinnZ [79.3K]
0.75/0.12=6.25

the batch is 6.25 cups

8 0
2 years ago
Read 2 more answers
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