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Llana [10]
3 years ago
7

T(x)=70(.80)*+20 where x is the time in minutes and the T is the temperature in degree celsius . What is the initial temperature

of the coffee?
Mathematics
1 answer:
Serggg [28]3 years ago
8 0

Answer:

The initial temperature of the coffee was 90°C.

Step-by-step explanation:

The function representing the temperature of the coffee after <em>x</em> minutes is:

T(x)=70\cdot(0.80)^{x}+20

T is the temperature in degree Celsius.

The initial temperature of the coffee will be at <em>x</em> = 0.

Compute the value of T (x) at x = 0 as follows:

T(x)=70\cdot(0.80)^{x}+20

T(0)=70\cdot (0.80)^{0}+20

        =70\times 1+20\\=70+20\\=90

Thus, the initial temperature of the coffee was 90°C.

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Step-by-step explanation:

Given : Sample size : n= 64

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Hence, A is the right option.

7 0
3 years ago
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Hope it helps!

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Step-by-step explanation:


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