Recent content by shimmeringlight

ok, i figured it out. thx

i checked it but my book says c^2=a^2+b^2 unless the book is wrong... but I've done other problems and its worked out... I am just stuck on this one question. :frown:

im still a bit confused about what you did... the answer is actually $111,943.89 in the back of my textbook for #2 and the financial calculator confirms this... when i calculated it using my formula, i got $9193.97

okay, so math it says... Determine an equation in standard from for each hyperbola... centre (-2,1), one focus (-4,1), length of conjugate axis 4 what i figured out... but its wrong... because i can't figure out the answer! (x+2)^2 - (y-1)^2 = 1 a^2_____[/color]b^2...

i copied the questions right out of my book...im not using a financial calculator just a scientific one... i use the formula that they give me... i use the formula... Pv=R[1-(1+i)^-n]/i and then for interest its the i, its the interest over the compounding periods per year... i...

i can't get these questions. how much is each payment for an investment of $32000... an interest rate of 12% per annum, compounded semi-annually, with payments every 6 months, starting in half a year. - i tried it but i can't seem to get the right answer... i think it might be the n...

http://www.funderstanding.com/k12/coaster/ i was looking at this site, and kind of based it on it... because when i move the mass thing it doesn't change the velocity... but i also know that you can adjust the speed. ... but in a roller coaster, if the mass increases or decreases in a...

i know and think that the when the mass inreases, the speed of the coaster does not change... this is according to researching on some sites simulators... it hinkt that's right... and because the speed esont change, the time doesn't change? but when i think about it more, I am nto sure...