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vladimir1956 [14]
3 years ago
8

Use similar triangles to find the value of x and y​

Mathematics
2 answers:
svp [43]3 years ago
5 0

Answer:

it is a dilation of the first triangle and if 5 = 6 then its just adding 1

Step-by-step explanation:

x = 11, y = 9

have a great day! hope this helps :)

Stells [14]3 years ago
5 0

Answer:

x = 12

y = 9.6

Step-by-step explanation:

Using ratios

5        10

---  = -----

6         x

Using cross products

5x = 6*10

5x = 60

Divide by 5

5x/5 = 60/5

x = 12

5        8

---  = -----

6         y

Using cross products

5y = 6*8

5y = 48

Divide by 5

5y/5 = 48/5

y = 9.6

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A sample of 1500 computer chips revealed that 37% of the chips fail in the first 1000 hours of their use. The company's promotio
andreyandreev [35.5K]

Answer:

z=\frac{0.37 -0.39}{\sqrt{\frac{0.39(1-0.39)}{1500}}}=-1.59  

Step-by-step explanation:

Data given and notation

n=1500 represent the random sample taken

\hat p=0.37 estimated proportion of of chips fail in the first 100 hours

p_o=0.39 is the value that we want to test

\alpha represent the significance level

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that  the actual percentage that fail is different from the stated percentage. Find the value of the test statistic.:  

Null hypothesis:p=0.39  

Alternative hypothesis:p \neq 0.39  

When we conduct a proportion test we need to use the z statisitc, and the is given by:  

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

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.37 -0.39}{\sqrt{\frac{0.39(1-0.39)}{1500}}}=-1.59  

3 0
3 years ago
It would mean a lot if you helped:)
nataly862011 [7]
1. yes
2.no
3.yes
4. no
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3 0
3 years ago
Is this triangle a right triangle? yes or no?
svlad2 [7]

Answer:

Yes.

Step-by-step explanation:

You can use the Pythagorean theorem to figure this out.

5²+12²=13²

25+144=169

169=169

You can also look at the bottom left corner, which is a right angle. All triangles containing right angles are right triangles.

You can also base your answer off of the fact that triangles are kind of like <u>G</u>oogle: They're always right. (jk no that's not true neither are always right)

Note:

If you're a Connexus student, please join my class on Quizlet using this link: https: // quizlet. com / join / 6nmuZyd2M (copy-paste into search, then take out ALL spaces)

8 0
2 years ago
_____ data are information about people, places, and things that can be measured with numbers.
Westkost [7]

Answer:

numerical

Step-by-step explanation:

i guess not sure though

5 0
3 years ago
Plwz help me fast ASAPPPPPPPPPPPP
Katena32 [7]

Answer:

a=1824

Step-by-step explanation:

3 0
3 years ago
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