3 years ago

Which statements are true about

1 answer:

5 0

Answer:well i do know what exaclty what you were reading so i have no clue add a coment about it ill read then answer :)

Step-by-step explanation:

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name 2x + y = 7 as equation i

and 3/2 x - y = 7/2 as equation ii

then add equation i and ii together

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(7/2) x = (21/2)

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3 years ago

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Step-by-step explanation:

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3 years ago

Newton’s Law of Cooling expresses the relationship between the temperature of a cooling object y and the time t elapsed since co

True [87]

Answer:

79 °F

Step-by-step explanation:

Newton’s Law of Cooling:

$y = ae^{-kt} + c$

Data

The initial temperature of a liquid is 160 °F

The temperature in the room (c) is 76 °F

Then a = 160 - 76 = 84 °F

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Replacing into the equation:

$y = 84e^{-0.23 \times 15} + 76$

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4 years ago

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