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Roman55 [17]
2 years ago
8

An expressions is shown. what is the value of the expression? 2315.5+(-3166.75)​

Mathematics
1 answer:
Zepler [3.9K]2 years ago
7 0
Adding a negative number is the same as subtracting a positive number. So 2315.5 - 3166.75 = -851.25
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A pan is heated to 393°F, then removed from the heat and allowed to cool in a kitchen where the room temperature is a constant 6
deff fn [24]

Answer:

The approximate temperature of the pan after it has been away from the heat for 9 minutes is 275.59°F.

Step-by-step explanation:

The formula for D, the difference in temperature between the pan and the room after t minutes is:

D = 324\cdot e^{-0.05t}

Compute the approximate difference in temperature between the pan and the room after 9 minutes as follows:

D = 324\cdot e^{-0.05t}

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Then the approximate temperature of the pan after it has been away from the heat for 9 minutes is:

D = P - R

206.59 = P - 69

P = 206.59 + 69

P = 275.59°F

Thus, the approximate temperature of the pan after it has been away from the heat for 9 minutes is 275.59°F.

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25x^4-34x^2y^2+9y^4<br><br>​
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Step-by-step explanation:

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