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Orlov [11]
3 years ago
15

Primula Brandybuck is sampling the family harvest of tomatoes. She randomly selects 446 tomatoes and inspects them for cracking.

Of the 446 tomatoes sampled, 192 of them were cracked. Construct a 99% Confidence interval of the proportion of tomatoes suffering from cracks. Answer with the upper bound only.
Round to 4 decimal places, as needed.
Mathematics
1 answer:
Marta_Voda [28]3 years ago
5 0

Answer:

Step-by-step explanation:

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Solve by elimination <br> 7x+7y=-7<br> -10x-7y=28
Zarrin [17]

Answer:

x = - 7, y = 6

Step-by-step explanation:

7x + 7y = - 7 -----> equation 1

- 10x - 7y = 28 -----> equation 2

Add equations 1 & 2,

7x + 7y = - 7

- 10x - 7y = 28

___________

- 3x + 0 = 21

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x = 21 / - 3

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Substitute x = - 7 in equation 1,

7x + 7y = - 7

7y + 7x = - 7

7y + 7 ( - 7 ) = - 7

7y - 49 = - 7

7y = - 7 + 49

7y = 42

y = 42 / 7

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2 years ago
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Consider the trinomial 6x2 + 13x + 6.
attashe74 [19]
In the given expression 6X² + 13X +6, we can easily identify the values of a, b and c. These values are a=6, b=13 and c=6
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ac=6*6
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nadya68 [22]
-5(r-1)
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Ram's office is 20 km away from his home. He usually travels by car daily at an average speed of 60 km per hour. On a particular
Travka [436]
Hello aysha123994 i am sure that it could be 17. if i am wrong forgive me
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vichka [17]

Answer:

21.92

Step-by-step explanation:

division

87.68 ÷ 4

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