True or false: the relationship between the number of workers and the number of bars produced is proportional.
1 answer:
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The segment marked 20 is the geometric mean of the two pieces into which it splits the hypotenuse. You get the proportion
Solving,
To find b, use the fact that b is the geometric mean of the whole hypotenuse, 21 + a, and the part that is attached to it, a.
A little arithmetic shows that
.
Solving,
To find b, use the fact that b is the geometric mean of the whole hypotenuse, 21 + a, and the part that is attached to it, a.
A little arithmetic shows that
Answer:
Step-by-step explanation:
For a uniform distribution we have to:
for x∈ (a, b)
for
for
In this case we have to:
a = 25 min and b = 105 min
We want to find:
Then
In this case:
Therefore: