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3 years ago

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A machine in a laboratory is set to steadily increase the temperature inside. The temperature in degrees Celsius inside the mach

ine after being turned on is a function of time, in seconds, given by the equation f(t)=22+1.3t
1. What does f(3) mean in this situation?
2. Find the value of f(3) and interpret the value.
3. What does the equation f(t)=35 mean in this situation?
4. Solve the equation to find the value of t for the question.

2 answers:

vaieri [72.5K]3 years ago

6 0

Answer:

1) f(3) means the temperature after 3 seconds

2) f(3) = 22 + 1.3(3) = 25.9

Temperature after 3 seconds is 25.9°C

3) f(t) = 35 means after t seconds, temperature was 35°C

4) 35 = 22 + 1.3t

1.3t = 13

t = 10 seconds

Semenov [28]3 years ago

5 0

Step-by-step explanation:

<u>Step 1: Answer the first question</u>

f(3) means the temperature after 3 seconds

<u>Step 2: Answer the second question</u>

The value of $f(3) = 22 + 1.3(3)$ → 25.9 degrees

The value of f(3) which is 25.9 means that after 3 seconds, the temperature is 25.9 degrees.

<u>Step 3: Answer the third question</u>

f(t) = 35 means that after a t amount of seconds, the temperature is 35 degrees.

<u>Step 4: Answer the fourth question</u>

$f(t) = 35$ so... $35 = 22 + 1.3t$

$35 - 22 = 22 - 22 + 1.3t$

$13 = 1.3t$

$13 / 1.3 = 1.3t / 1.3$

$10 = t$

10 seconds

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To do that :

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