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zubka84 [21]
3 years ago
7

The two polygons are similar. Find the values of x and y. Please help, i will mark brainliest

Mathematics
1 answer:
9966 [12]3 years ago
5 0
Do you have a photo?
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How do i find the perimeter?
Arada [10]

Answer: 8x+12

Step-by-step explanation:

perimeter equals (x+4) + (3x+2) + (x+4) + (3x+2) = x+4 + 3x+2 + x+4 + 3x+2 = 8x+12

8 0
3 years ago
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An urn contains a very large number of marbles of four different colors: red, orange, yellow, and green. A sample of 12 marbles d
Umnica [9.8K]

Answer:

We  can reject the hypothesis at the 0.05 significance level.

 

Step-by-step explanation:

given that an urn contains  a very large number of marbles of four different colors: red, orange, yellow, and green. A sample of 12 marbles drawn at random from the urn revealed 2 red, 5 orange, 4 yellow, and 1 green marble.

H0: All colours are equally likely

Ha: atleast two colours are not equally likely

(Two tailed chi square test at 5% significance level)

color                  Red           Orange      Yellow      Green         total

Observed  O         2                     5                  4           1              12    

Expected   E         3                     3                   3          3              12

(O-E)^2/E             0.3333            5.3333        0.3333  5.3333     11.3333

chi square = 11.3333

df =3

p value = 0.010055

Since p < 0.05 we reject H0

We  can reject the hypothesis at the 0.05 significance level.

 

3 0
3 years ago
There is a claim from the 1960s that 35% of women had college educations in the 60s. To prove it had increased in the 70s, we ra
kipiarov [429]

Answer: The National Center for Education Statistics (NCES) collects, analyzes and makes available data related to education in the U.S. and other nations. Hope this helped

Step-by-step explanation: how are you?

7 0
3 years ago
Pleaseee answer 1st correct answer gets brainliest
Ludmilka [50]

Answer:

4. No they do not form a proportion.  5. Yes they do form a proportion

Step-by-step explanation:

4 is less than 7 and 24 is less than 35 so they make proportions.

7.50 is more than 3 and 5 is more than 2 so they do not make proportions.

3 0
3 years ago
Over the interval [0, 2pi), what are the solutions to cos(2x) = cos(x)? Check all that apply.
Nikolay [14]

Answer:0, 2pi/3, 4pi/3

Step-by-step explanation:

did on edge

6 0
3 years ago
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