The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 F
1 answer:
Answer:
After 8 minutes will the temperature be 138.1 F
Step-by-step explanation:
Given that:
The water has been on the stove .....[1]
where
y represents the temperature in Fahrenheit(F)
x represents the time in minutes.
We have to find after how many minutes will the temperature be 138.1 F.
⇒y = 138.1 F
Substitute the given value in [1] to solve for x;
Subtract 62.1 from both sides we get;
Divide both sides by 9.5 we get;
8 = x
or
x = 8 minutes.
Therefore, after 8 minutes will the temperature be 138.1 F
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Answer:
Thus, the two root of the given quadratic equation is 5.24 and 0.76 .
Step-by-step explanation:
Consider, the given Quadratic equation,
This can be written as ,
We have to solve using quadratic formula,
For a given quadratic equation we can find roots using,
...........(1)
Where, is the discriminant.
Here, a = 1 , b = -6 , c = 4
Substitute in (1) , we get,
and
We know (approx)
Substitute, we get,
(approx) and
(approx)
(approx) and
(approx)
Thus, the two root of the given quadratic equation is 5.24 and 0.76 .