The temperature is 50 degrees Fahrenheit. The temperature will decrease by 4 degrees F. each hour. Let h be the number of hours.
2 answers:
Answer:
Option B is correct
Step-by-step explanation:
Here, h be the number of hours.
As per the statement:
The temperature is 50 degrees Fahrenheit.
⇒Initial temperature = 50 degrees Fahrenheit
It is also given that:
The temperature will decrease by 4 degrees F each hour.
1 hour temperature will be = -4 degree F
then;
In h hour temperature = -4h degrees F
We have to find the the temperature be below 32 degrees F.
Total Temperature be below 32 degrees F means:
where, h represents the number of hours.
Therefore, the the temperature below 32 degrees F will be
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Answer:
x = 4
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² + 1² = 9²
x² + 1 = 81 ( subtract 1 from both sides )
x² = 80 ( take square root of both sides )
x = =
=
×
= 4