The temperature of a liquid in an experiment starts a 0 degrees celsius. the experiment calls for the temperature of liquid to change at a rate of -0.8 degrees celsius per minute. how long will it take for the liquid to reach -10.8 degrees celsius? estimate to show that your answer is reasonable.

It will take 13.5 minutes for the liquid to reach - 10.8°C.

Step-by-step explanation:

The initial temperature of the experiment is 0°C and as the experiment goes on, the temperature of the liquid is changing at a rate of - 0.8°C per minute.

So, the equation that models the situation is  

T = 0 - 0.8t

⇒ T = - 0.8t (1)

Where T is the temperature of the liquid in °C and t is the time of spending after the experiment starts in minutes.

Now, given T = - 10.8°C and we have to find the corresponding time (t) in minutes.

So, from equation (1) we get,  

- 10.8 = - 0.8t

⇒ t = 13.5 minutes

Therefore, it will take 13.5 minutes for the liquid to reach - 10.8°C. (Answer)

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

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