Recent content by shadowboy13

Now i haven't checked yet whether or not this is correct, but the formula for the length of an arc that subtends a central angle can also be expressed this way: AC/360 Where: A: Central Angle C: Circumference Is this correct? Thank you for your help.

I just posted this because it is interesting given the percentage of primes vs non primes that you can get. Maybe there's something to this?

So i was messing around with egyptian fractions and i eventually decided to try adding them together and then reducing the one single fraction that formed into its lowest terms. Anyway i set them up with having 1 in the numerator ALWAYS (or else it won't work) and proceeded to add them up...

So for starters the area of an entire circle has 360º,right? So we can say that: ##1∏r^2## is ##\equiv## to ##360º## So by that logic ##0.5∏r^2## is ##\equiv## to ##180º## And finally ##0.25∏r^2## is ##\equiv## to ##90º## Divide both sides by 9, and you get : ##0.25∏r^2/9## is...

Now i think i derived this correctly, but I'm not sure if it's correct, can anyone give me a confirmation? ##n-1/2=x## Where ##x## is the result of subtracting 1 from the observations and then dividing by 2. Then ##x+1=Median## Thank you :) Edit: Oops, this is the handicapped...

I should have read the book answer more clearly, i just read it and it says 75% sent LESS than 62 messages, it didn't say 62 was the answer (i.e X) Sorry folks false alarm, nothing to see here.

Homework Statement There was study made, with a histogram shown below where the maximum number of calls made were 80, of the students who sent messages, 75% sent X or less, determine X. Homework Equations X/80= 0.75 The Attempt at a Solution Now unless I'm missing something...

Let's suppose i have a class of interval 7, say [20, 27[ With the numbers 20 21 22 23 24 25, there are 2 ways to derive the median yes? I may use [a+b[ /2 to get the median which in the case above will give me 23.5, or i may simply look at the numbers above and clearly see the median is...

[a;b[ I want to do a problem with this but i can't find anything about it, if anyone can help me it'd be very useful, thank you. :) The one i want to do exactly is [20;30[ , in case anyone is wondering.

Yeah i know i pictured it a bit after the fact. Oddly enough, I've solved far harder problems than that with no issue, yet simple problems always seem to stump me in the high hours of the morning, no more math after midnight :) Thank you everybody

Yeah i realized after reading that where i made a faulty connection. Oh well, now i know.

[b]1. Homework Statement A square garden has an area of 1764 squared feet, and the gardener wants to install a sprinkler (with a circular spraying pattern) at the center of the garden. What is the minimum radius of spray the sprinkler would need in order to water ALL of the garden. [b]2...

That's on the very first page of list results mind you, so i wasn't scavenging for results, the fact that the person in that video said that it was a regular hexagon is what got me confused, because like i said, my formula clearly works.

Thank you :) Don't know why several videos on youtube have been mentioning that those sort of hexagons are "regular" but whatever. Thanks again :)

Thank you mister:) The formula is ##6x^2√3##, the only difference is that ##x## is half of a side length. (ex:6 is the side length, 3 is ##x##) For example for a regular hexagon of side length 8 and apothem 7,I get 166.2768...,however in a entirely different youtube video this very same...