The slope perpendicular to an undefined slope is: 0
Example:
x = 5 is a vertical line and has an undefined slope.
The line perpendicular to it is y = <em>any value</em> which has a slope of 0.
I hope this makes sense. If not, please post the homework question so we can help you find the circumcenter.
Answer:
fvgdnsigdv356b cdhfn .44. jcbyd6.5.4.3.3.2.2.3.4.5.6.6.7.7
Step-by-step explanation:
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We are asked to simplify the expression 
.
That's exactly what we need to do - combine like terms.
So, we subtract:
Which gives us:
Hope it helps you out! :D
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Speed, S = Distance (d) / Time (t) => S= d/t => t= d/S
Let the speed of boat in still water be x mph
Resulting speed upstream = x-4 mph for a distance of 30 miles
Resulting speed downstream = x-4 mph for a distance of 50 miles
Time taken in both distances is equal.
Therefore,
30/(x-4) = 50/(x+4) => 30(x+4) = 50(x-4) => 30x+120 = 50x-200 => 120+200 = (50-30)x => 20x = 320 => x=320/20 = 16 mph
The speed of boat in still water is 16 mph.
765 divides by 5 = 153.
Hope that helped! :)
