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3 years ago

5 x 3^2 - 28 divided by 2^2

Mathematics

1 answer:

OlgaM077 [116]3 years ago

3 0

Answer:

17/4 OR $\frac{17}{4}$

Step-by-step explanation:

5(3²)-28 / 2²

5(9)-28 / (4)

45-28 / 4

17 / 4

17/4 OR $\frac{17}{4}$

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Answer:

The initial temperature of the object was 37.6 degrees Celsius

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Step-by-step explanation:

we have

$f(t)=Ce^{(-kt)} +20$

where

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t is the time in minutes

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we have the ordered pair (4,35)

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$C=15/e^{(-0.0399*4)}$

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x = 1200/60
x = 20

check..
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