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Alex777 [14]
3 years ago
9

Solve the inequality. 9n ≤ –27

Mathematics
1 answer:
PtichkaEL [24]3 years ago
6 0

9n <= -27

n<= -27/9

n<= -3

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Answer:

V =41.41³

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Step-by-step explanation:

Picture 2 = a = 1/2 base = 3.5 x 3.5 = 12.25  b= 5 x 5 = 25

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If a cup of coffee has temperature 97°C in a room where the ambient air temperature is 25°C, then, according to Newton's Law o
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Answer:

The  average temperature  is T_{a} = 81.95^oC

Step-by-step explanation:

From the question we are told that

    The temperature of the coffee after time t is   T(t) =  25 + 72 e^{[-\frac{t}{45} ]}

Now the average temperature during the first 22 minutes i.e fro 0 \to  22minutes is mathematically evaluated as

              T_{a} =  \frac{1}{22-0}  \int\limits^{22}_{0} {25 +72 e^{[-\frac{t}{45} ]}} \, dx

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          T_{a} = 81.95^oC

       

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2 years ago
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