Evaluate 4-2f when f=1
2 answers:
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Answer:
The perimeter of the new pentagon is equal to times the perimeter of the original pentagon
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its perimeters is equal to the scale factor
Let
z-------> the scale factor
x------> the perimeter of the new pentagon
y-----> the perimeter of the original pentagon
so
In this problem we have
substitute
therefore
The perimeter of the new pentagon is equal to times the perimeter of the original pentagon
Answer:
The whole number temperatures, in kelvin, at which Andrew can conduct his experiment are 287, 288, 289,290,291.
Step-by-step explanation:
The temperature in degrees Celsius is 273.13 less than the temperature in kelvin; mathematically this means:
Where is the temperature in kelvin and
is the temperature in Celsius.
From this relationship we convert Andrew's temperature range—
13.5°c to 18.5°c—to kelvin:
Thus Andrew can conduct his experiment between 286.65 and 291.65 kelvin, and the whole number temperatures between these extremes are 287, 288, 289,290,291.
Thus the whole number temperatures, in kelvin, at which Andrew can conduct his experiment are 287, 288, 289,290,291.