The temperature of a chemical reaction ranges between 30 degrees Celsius and 70 degrees Celsius. The temperature is at its lowest point when t = 0, and the reaction completes 1 cycle during a 10-hour period. What is a cosine function that models this reaction?

Answers

Answer 1

Answer: Let us consider function as T= Acos(teta)+B, max and min values will occur when cos(teta) = +1 and -1;
so 30= -A+B;
70= A+B;
solving both B=50, A=20;
also at t=0 , cos(teta)= -1 and finishes one cycle after t=10hour;
so(teta) = pi+pi*t/10;
so, T= 20cos(pi+pi*t/10) + 50;

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Answers

Answer:

By 2 or 7

Step-by-step explanation:

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Answer:

Fraction Form: 1/83
Decimal Form: 0.01204819

Step-by-step explanation:

You basically take 1162 and put it in the house and take 14 And put it outside the house and you just divide then.

Hoep this helps!

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Answers

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Answers

$p\%=(p)/(100)\n\n20\%=(20)/(100)=0.2\n\n20\%\ of\ \£1.85\ is\ 0.2\ *\ \£1.85=\£0.37$

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Answers

9 − 5 1/3

=9−1 6/3

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Answers

Answer:

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Step-by-step explanation:

Step 1: Write out expression

-2(2x + 4)

Step 2: Distribute -2

-4x - 8

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