Answer:
a. F = (9/5)(K - 273.15) + 32
b. F = 32°F
Step-by-step explanation:
K=5/9(F−32)+273.15
F = (9/5)(K - 273.15) + 32
F = (9/5)(<u>273.15</u> - 273.15) + 32
F = 32
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45</h2><h2>___________________________________</h2>
Answer:
6d+6 is the correct answer
Step-by-step explanation:
Let f(x) represents the heart beat of the person.
Now, we have been given that person’s theoretical maximum heart rate is given by 220 - x.
Also, we have been given that person strive for a heart rate that is at least 50% of the maximum. At least means greater than equal to.
Thus, we have

Also, we have been given that person strive for a heart rate that is at most 75% of the maximum. At most means less than equal to.
Therefore, the system of inequality is given by

Answer:
67.5 degrees
Step-by-step explanation:
The first angle is 45 and the second angle is x and the third angle is x (the second and third are equal)
We know the 3 angles of a triangle add to 180 degrees
45+x+x = 180
Combine like terms
45+2x=180
Subtract 45 from each side
45-45 +2x = 180-45
2x= 135
Divide by 2
on each side
2x/2 =135/2
x = 67.5