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Tutors Answer Your Questions about Inverses (FREE)
Question 181154: If a uniform bar is to balance on a fulcrum, the ration of the larger weight to the smaller weight must equal the ratio of the smaller distance to the larger distance.
If an 8 kg weight is 7.2m from the fulcrum, how far from the fulcrum is a 9 kg weight which balances it?
HOLY TOLEDO THIS QUESTION IS RANK. PLEASE HELP
Click here to see answer by solver91311(5072)   |
Question 181154: If a uniform bar is to balance on a fulcrum, the ration of the larger weight to the smaller weight must equal the ratio of the smaller distance to the larger distance.
If an 8 kg weight is 7.2m from the fulcrum, how far from the fulcrum is a 9 kg weight which balances it?
HOLY TOLEDO THIS QUESTION IS RANK. PLEASE HELP
Click here to see answer by stanbon(26274)  |
Question 181208: a 3M BAR is used to lift a stone. A 90 kg person exerts all his weight to one end of the bar which is 2 1/2 m from the fulcrum and balances the stone. The weight of the stone is approximately?
PLEASE I AM ASKING FOR HELP, WHO CAN ANSWER MY PRAYER.......
Click here to see answer by stanbon(26274) |
Question 181207: The weight of a body at or above the earths surface varies inversely as the square of the distance from the earths center. What does a 450 kg object weigh 500 km away for the earths surface? a 450 kg object weighs 4410 Newtons at the surface of the earth. Newton is a unit of measure for weight. Use 6500 km as the radius of the earth in your calculations.
PLEASE GOD CAN SOMEONE HELP ME WITH THIS QUESTION AND GOD BLESS WHO EVER DOES
Click here to see answer by Edwin McCravy(2922) |
Question 181321: I REALLY NEED HELP HERE....
A 3M BAR IS USE TO LIFT A STONE. A 90 KG PERSON EXERTS ALL HIS WEIGHT TO ONE END OF THE BAR WHICH IS 2 1/2M FROM THE FULCRUM AND BALANCES THE STONE. THE WEIGHT OF THE STONE IS APPROXIMATELY.
A. 500
B. 450
C. 400
D. 45KG
Click here to see answer by vleith(1977) |
Question 181321: I REALLY NEED HELP HERE....
A 3M BAR IS USE TO LIFT A STONE. A 90 KG PERSON EXERTS ALL HIS WEIGHT TO ONE END OF THE BAR WHICH IS 2 1/2M FROM THE FULCRUM AND BALANCES THE STONE. THE WEIGHT OF THE STONE IS APPROXIMATELY.
A. 500
B. 450
C. 400
D. 45KG
Click here to see answer by Fombitz(2113)  |
Question 181305: PLEASE HELP
A 3m bar is used to lift a stone . A 90 kg person exerts all his weight to one end of the bar which is 2 1/2 m from the fulcrum and balances the stone. The weight of the stone is approximately?
a. 500
b. 450
c. 400
d. 45 kg.
Click here to see answer by Fombitz(2113) |
Question 181259: A gear with 48 teeth makes 5 rpm and webs with a gear having 20 teeth which in turn webs with a gear having 16 teeth. What is the speed of the smallest gear
(I got the answer of s2= 12 rpm and s3 is 15 rpm)
MAYBE OR NOT
PLEASE HELP
Click here to see answer by Fombitz(2113) |
Question 182487: 14 = 2/3(9y - 15)
Please show me how to solve the problem. I am a parent trying to help my child with her pre-Algebra. There is no example in her textbook (Prentice Hall Mathematics Pre-Algebra) FLORIDA. It has been many years since I was in school and, frankly, I can't figure it out! I don't know which operation to perform first.
Thanks.
Lin Daily
Click here to see answer by tvandenberg(45) |
Question 182487: 14 = 2/3(9y - 15)
Please show me how to solve the problem. I am a parent trying to help my child with her pre-Algebra. There is no example in her textbook (Prentice Hall Mathematics Pre-Algebra) FLORIDA. It has been many years since I was in school and, frankly, I can't figure it out! I don't know which operation to perform first.
Thanks.
Lin Daily
Click here to see answer by solver91311(5072) |
Question 182487: 14 = 2/3(9y - 15)
Please show me how to solve the problem. I am a parent trying to help my child with her pre-Algebra. There is no example in her textbook (Prentice Hall Mathematics Pre-Algebra) FLORIDA. It has been many years since I was in school and, frankly, I can't figure it out! I don't know which operation to perform first.
Thanks.
Lin Daily
Click here to see answer by MathGuyJoe(20) |
Question 187708This question is from textbook Precalculus
: Hi,
I'm trying to find the inverse function of: f(x) = 8x^3 - 1
Not really sure how to approach this one. I've plotted points on a graph and took the inverses of those points, but I can't come up with a function to get those points.
Thanks,
LynnThis question is from textbook Precalculus
Click here to see answer by stanbon(26274) |
Question 188359: Pre-Algebra- I think..not sure. This problem is from Contemporary's Number Power Algebra 3 by Robert Mitchell
TERMS ON BOTH SIDES OF AN EQUATION:
 and *** this one I tried, but kept getting the wrong answer etc..
here is the problem***
Any help would be greatly appreciated, as I am studying for a test in Pre-algebra/algebra, and need to attain a score of 55+ in Pre-algebra, and a score of 30+ in algebra. This test is on Saturday, (28th March), and I have been studying, religiously, but then..somewhere along the way, I become hopelessly lost, and end up with answerrs that are so-far out in left field, that I am not even sure I am in the same class etc....I should mention, that I am a returning adult...and not fresh out of High-School. My last algebra class was twenty-five+ years ago etc.....
Thank-you for your time, and any helpful suggestions..other than do not enter school would be greatly appreciated!!!! (the above joke was a lame attempt at keeping/finding humour in this stressful aspiration!!!)
Thanx~ John
Click here to see answer by jim_thompson5910(13794) |
Question 189494: Id have a question if x varies inversely as y and x=2 when y=8, and i should find x when y=17 then x=12 or does x=11?
Another question would be; if y varies directly with x and y=10 when x=15, find y when x=6, so y=1?
My last question would be; could someone explain this to me; if y varies directly as x and inversely as z^2, and y=3 when x=2 and z=4, what is the value of x when y=9 and z=4? how would i solve this?
Click here to see answer by solver91311(5072) |
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