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anzhelika [568]
2 years ago
7

If anyone knows how to obtain the answer, please notify me.

Mathematics
1 answer:
Tems11 [23]2 years ago
6 0

Answer:

Area =  

b1 + b2

×h

2

=  

2 + 6

× 5

2

=  

20 centimeters2

Step-by-step explanation:

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The print on the package of -watt General Electric soft-white light-bulbs says that these bulbs have an average life of hours. A
Naddika [18.5K]

Answer:

Hi your question is incomplete attached below is the complete question

answer : p ( X < 725 )  = 0.0116

Step-by-step explanation:

Given data:

Average life of bulbs (μ  ) = 750 hours

standard deviation (б ) = 55 hours

n ( sample size ) = 25

X = 725  

<u>Probability that the mean life of a random sample of 25 bulbs will be less than725 hours </u>

p ( X < 725 ) = p (( X - μ )/ б √n  <  725 - 750 / 55√25 )

                     = P ( Z > - 2.27 )

Hence P ( X < 725 ) = 0.0116  ( using Z-table )

3 0
2 years ago
HELP PLEASE!!!!!! Only 5 more minutes till i turn it in!!!
GarryVolchara [31]

Answer:

<B = 70°

Step-by-step explanation:

First we need to find x, lets plugin these two equations.

2x - 30 = x + 20

Then find like terms

2x = x + 50 =

x = 50

Then we plugin 50 for x

2(50) - 30 =

100 - 30 = 70

<B = 70°

5 0
2 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
What’s the answerrrr I need helpp?!!?
Nataly_w [17]
See below


300e^(.20*t)

Hope it helps
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