A slow boat to china travels at a constant speed of 17.25 miles per hour for 200 hours. how far was the voyage?
2 answers:
Answer:
Step-by-step explanation:
Distance can be found by multiply the speed by the time.
Where <em>d</em> is the distance, <em>s</em> is the speed, and <em>t</em> is the time.
1. Define Variables
The speed is 17.25 miles per hour and the time is 200 hours.
2. Calculate Speed
Substitute the values into the formula.
Multiply. The hours (hr) will cancel each other out and leave miles as the units.
The voyage was <u>3,450 miles</u>
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Answer:
Critical value f(1)=2.
Minimum at (1,2), function is decreasing for and increasing for
is point of inflection.
When 0<x<3, function is concave upwards and when x>3, , function is concave downwards.
Step-by-step explanation:
1. Find the domain of the function f(x):
2. Find the derivative f'(x):
This derivative is equal to 0 at x=1 and is not defined at x=0. Since x=0 is not a point from the domain, the crititcal point is only x=1. The critical value is
2. For the derivative f'(x)<0, then the function is decreasing. For
the derivative f'(x)>0, then the function is increasing. This means that point x=1 is point of minimum.
3. Find f''(x):
When f''(x)=0, x=3 and
When 0<x<3, f''(x)>0 - function is concave upwards and when x>3, f''(x)>0 - function is concave downwards.
Point is point of inflection.
