3 years ago

What is i30? A. 1 B. -i C. -1 D. i

Mathematics

1 answer:

Doss [256]3 years ago

5 0

B

Jksshsianhshsjssjsj

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20,10,5, ...<br> Find the 9th term.

iren [92.7K]

Answer:

0.078125.

Step-by-step explanation:

This is a geometric sequence with first term a1 = 20 and common ratio r = 10/20 = 5/10 = 0.5.

nth term = a1 r^(n -1) so here:

9th term = 20(0.5)^(9-1)

= 20(0.5)^8

= 0.078125.

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2 years ago

Please help me with this question

lara31 [8.8K]

Answer:

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Step-by-step explanation:

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3 years ago

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 )

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3 years ago

a bus is full of passengers. if you count them by either twos, threes, or fives, there is one left. if you count them by seven t

devlian [24]

Answer:

91.

Step-by-step explanation:

The least number will be a multiple of 7 while the number - 1 will be a multiple of 2,3 and 5.

2*3*5 = 30 but 31 is not a multiple of 7.

2*2*3*5 = 60 but 61 is not divisible by 7.

2*3*3*5 = 90 and 91 is divisible by 7.

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3 years ago

Two people decide to find the height of a tower they position themselves 25 feet apart in line with and on the same side of the

bonufazy [111]

1.477272727272727 I think this might be the answer.. devide 65 into 44 and youll get the answer

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3 years ago