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3 years ago

2x + 5 Find the val 3x+15

Mathematics

1 answer:

Crank3 years ago

3 0

Answer:

Step 1: Find the x

2x + 5: Solve

$2x + 5 - 5 = 0 - 5$

$2x / 2 = -5 / 2$

$x = -5/2$

3x + 15: Solve

$3x + 15 - 15 = 0 - 15$

$3x / 3 = -15 / 3$

$x = -5$

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Step-by-step explanation:

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Answer:

f'(t) is negative

The unit is degC/min

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Step-by-step explanation:

From the question we are told we are told that

The equation for the temperature of a cup of coffee place on a counter is

$H= f(t)$

Here t is the time in minutes the coffee was put on the counter

Generally f(t)' is the derivative of f(t) at it represents the change of the temperature of the cup of coffee with respect to time

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Generally the unit of the temperature is in degrees Celsius while that of time is in minutes

So the change in temperature with time f(35)' will be in degrees Celsius/minutes (i.e degC/min)

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and

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$R = |f(35)'| * t$

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