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gayaneshka [121]
3 years ago
14

PLZZZZZZZZZZZZZZZZZZZZZZZ HELP ME

Mathematics
1 answer:
slava [35]3 years ago
3 0

Answer:

the answer is 2119

Step-by-step explanation:

1+1=1

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The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT dt equals negative k times the quantity T min
denis23 [38]

Answer:

  (b)  67

Step-by-step explanation:

A solution to the differential equation describing the temperature according to Newton's Law of Cooling could be written as ...

  T = (final temp) + (initial difference)×(decay factor)^t

where the decay factor is the fraction of change during 1 unit of time period t.

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Here, the initial difference of 100-25 = 75 degrees decays to 90-25 = 65 degrees in 1 minute. So, the units of t are minutes, the decay factor is 65/75, the initial difference is 75 degrees, and the final temperature is 25 degrees. That lets us write the equation as ...

  T = 25 +75(65/75)^t

Then for t=4, the temperature is ...

  T = 25 +75(13/15)^4 ≈ 67.3 . . . . degrees

After 4 minutes the temperature of the coffee is about 67 degrees.

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If each of these runners travels the indicated number of spaces in the same amount of time, at which numbered spot will all of t
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nub 5

Step-by-step explanation:

4 0
2 years ago
I NEED HELP WITH PERCENT PROBLEM
fomenos

Answer:

76$

Step-by-step explanation:

114=.6y; y= original price

y=190, original price

190-114=76

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prisoha [69]

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Step-by-step explanation:

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3 years ago
Work out m and c for the line: y = 10 x
alekssr [168]

Answer:

The slope is 10 and the y intercept 0

Step-by-step explanation:

m is 10 and c is 0. The reason why is because m is the slope and c is the y intercept.

8 0
3 years ago
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