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Varvara68 [4.7K]
3 years ago
11

Which of the following is an illuminated object? a lightbulb a fire the Sun the Moon

SAT
2 answers:
Lubov Fominskaja [6]3 years ago
8 0

Answer:

The moon is the illuminated object.

ELEN [110]3 years ago
5 0
The moon (think about how it glows much less the fire and sun emits light and heat and the light bulb too) hope this helps :)
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which inequality models this problem? josephine started a business selling cosmetics. she spent $4500 to obtain her merchandise,
Alenkinab [10]

Answer:

Here u go lil bro,

550w>4500+200w

Explanation:

Since she earns $550 per week, Josephine's earnings can be represented as 550w, where w is the number of weeks.

Her costs are $200 per week, or 200w, plus the 4500 start up costs; this gives us 200w+4500.

We want a profit; this means the amount she earns, 550w, must be greater than the costs, 200w+4500:

550w > 200w + 4500, or

550w > 4500 + 200w

3 0
3 years ago
Read 2 more answers
A single-platter disk has rotation speed 7200 rpm, number of tracks on one side of platter is 30,000, number of sectors per trac
nexus9112 [7]

Answer:

Rotation Speed = 7200 rpm

No. of tracks on one side of platter = 30000

No. of sectors per track = 600

Seek time for every 100 track traversed = 1 ms

To find:

Average Seek Time.

Average Rotational Latency.

Transfer time for a sector. Total Average time to satisfy a request.

Explanation:

a) As given, the disk head starts at track O. At this point the seek time is 0.

Seek time is time to traverse from 0 to 29999 tracks (it makes 30000)

Average Seek Time is the time taken by the head

to move from one track to another/2

29999 / 2 = 14999.5 ms

As the seek time is one ms for every hundred

tracks traversed. So the seek time for 29,999 tracks traversed is

14999.5/100 = 149.995 ms

b) The rotations per minute are 7200

1 min = 60 sec

7200 / 60 = 120 rotations / sec

Rotational delay is the inverses of this. So 1/120 = 0.00833 sec

= 0.00833 * 100

= 0.833 ms

So there is 1 rotation is at every 0.833 ms

Average Rotational latency is one half the amount of time taken by disk to make one revolution or complete 1 rotation.

So average rotational latency is: 1 / 2r

8.333/2 = 4.165 ms

c) No. of sectors per track = 600

Time for one disk rotation = 0.833 ms

So transfer time for a sector is: one disk revolution time / number of sectors

8.333 / 600 = 0.01388 ms = 13.88 μs

d) Total average time to satisfy a request is calculated as :

Average seek time + Average rotational latency + Transfer time for a sector

= 149.99 ms + 4.165 ms + 0.01388 ms

= 154.168 ms

4 0
2 years ago
Which factors affect the rate of deposition? Check all that apply.
Oduvanchick [21]

Answer:

density of the sediment

size of the sediment

velocity of the agent of erosion

Explanation:

7 0
3 years ago
Read 2 more answers
Jar B has 20% more
LekaFEV [45]
8 1/3% of Jar B’s marbles need to be moved to jar A to make them equal. This is because:

If Jar A has 100 marbles and B has 120 marbles which is 20% more than Jar A then 10 marbles would have to be moved from Jar B to Jar A. To calculate the percentage it would be 10/120 which reduces to .0833 repeating or 8 1/3%.

Hope this helps :)
8 0
3 years ago
Read 2 more answers
NO ONE CAN SOLVE THIS, NEITHER CAN YOU :::By what percent will a fraction change if its numerator is decreased by 10% and its de
Veseljchak [2.6K]

Answer:

9/5

Explanation:

original fraction : x/y

new fraction = .9x/(.5y)

= 9x/5y

(9x/5y) / (x/y)

= 9x/5y * y/x

= 9/5

= 1.8

so it increased by 80%

e.g suppose we had 100/200 or 1/2

new fraction = 90/100 or 9/10

new ratio = (9/10) / (1/2)

= 9/5

8 0
3 years ago
Read 2 more answers
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