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Anit [1.1K]
3 years ago
6

Help meee please Mark as a brainlist if you explain step by step

Mathematics
1 answer:
Korolek [52]3 years ago
8 0
The two triangles are congruent which means they're equal to each other according to the statement given (DEF=GHJ). They have the same measurements. The answer to your question is JH= 30 ft since JH is the same lenghth as EF. 
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Which example would be likely to give a valid conclusion?
alukav5142 [94]

Given: Different statement

To Determine: Which of the statement would give a valid conclusion

Solution

Please note that the statement must be a true representation of the population

7 0
1 year ago
Brian scored 120 on his test the first time he took the test. The second time he took the test,
Brums [2.3K]

Answer:

b. 25%

Step-by-step explanation:

(new - old)/ old * 100%

150 - 120 = 30 ... 30/120 = .25 * 100% = 25%

6 0
3 years ago
Read 2 more answers
What is the perimeter of the rectangle? 19 cm 17 cm​
Usimov [2.4K]

Answer: 36cm

Step-by-step explanation:

6 0
3 years ago
The blood platelet counts of a group of women have a​ bell-shaped distribution with a mean of 256.3 and a standard deviation of
AnnyKZ [126]

Answer:

a) In the interval  (  55,9  ;   456,7 ) we will find 99,7 % of all values

b) In the interval  (  122,7  ;  389,9 ) we find 95,4 % of all values

Step-by-step explanation:

For a Normal distribution N (μ ; σ ) the Empirical rule establishes that the intervals:

( μ  ±  σ  )          contains 68,3 % of all values

( μ  ±  2σ  )        contains 95,4 % of all values

( μ  ±  3σ  )        contains 99,7 % of all values

If   N ( 256,3 ; 66,8 )

σ  =  66,8        ⇒   3*σ  = 3 * 66,8  = 200,4

Then:     256,3 - 200,4  =  55,9

And        256,3 + 200,4 = 456,7

a) In the interval  (  55,9  ;   456,7 ) we will find 99,7 % of all values

b) 2*σ  = 2 * 66,8  = 133,6

Then  256,3 - 133,6  = 122,7

And    256,3 + 133,6 = 389,90

Then in the interval  (  122,7  ;  389,9 ) we find 95,4 % of all values

4 0
3 years ago
The perimeter of a rectangle is 59
Lelu [443]
Perimeter = 2(length + width)
59 = 2(14+x)
59 = 28 + 2x
31 = 2x
15.5 = x

Width = 15.5
5 0
3 years ago
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