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lidiya [134]
2 years ago
6

30 points and Brainliest!

Mathematics
1 answer:
yuradex [85]2 years ago
5 0

Answer:

LF = PF                   given

ΔLFP is isosceles   definition of isosceles triangle

∠FLP = ∠FPL          isosceles triangle theorem: if two sides of a triangle are

                               congruent, then angles opposite those sides are

                               congruent.

LP = PL                    reflexive property

∠PDL = ∠LKP          Perpendicular lines postulate (perpendicular lines form 90

                                degree angles)

ΔPDL ≅ ΔLKP         AAS

LK = PD                    corresponding parts of congruent triangles are congruent  

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Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

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Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

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sample mean : \overline{x}=65 hours

Population standard deviation : \sigma=18 hours

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Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

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