The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 11 miles? Round your answer to the nearest unit

Answers

Answer 1

Answer: Intensity=k/(distance)² where k is a constant
8000=k/2²
8000=k/4
k=32000

If distance is 11 miles, Intensity=k/11²
=32000/121
=264.46units
≈264units

Answer 2

Answer:

Answer:

The answer would be C.264unints

Step-by-step explanation:

Intensity=k/(distance)² where k is a constant

8000=k/2²

8000=k/4

k=32000

If distance is 11 miles, Intensity=k/11²

=32000/121

=264.46units

≈264units

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A health insurance payment of 34.55 was deducted fromms Donaldsons earnings for the week. after the insurance deduction payroll taxes equal to 28% of the balance were deducted. what was the amount that she received??

Answers

The correct answer for the question that is being presented above is this one: "628.24." A health insurance payment of 34.55 was deducted fromms Donaldsons earnings for the week. after the insurance deduction payroll taxes equal to 28% of the balance were deducted. The total amount she received is 628.24.

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Step-by-step explanation:

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Answers

How much part can sally paint in an hour ?
a ÷ 7 = a/7

And what about Steve ?
a ÷ 9 = a/9

Where, a is the total area of the room.

So, let the time taken by both of them to paint the room together be 't'

So,
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Sally alone can paint the room in 7 hours.

In 7 hours Sally alone does the job.

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Steve can paint it alone in 9 hours.

In 9 hours Steve alone does the job.

In 1 hour Steve would do (1/9) of the job.

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In 1 hour both will have done (16/63) of the job.

16/63 of the job will be done in 1 hour by both.

Therefore a 1 whole fraction of the job will be done in: 1 hour ÷ 16/63

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Step-by-step explanation:

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