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I think I agree with ShivamS that there is no application without theory. Maybe, math is one of those aspects of life we can't do without. Math is for everyone and math is everywhere.
Measurement/mensuration - cooking, sewing, cutting, painting, building, medicine (dosage)
Algebra - calculation, business, record keeping
Ratio and proportion - sharing and distribution of items: food, salaries, measurement
Calculus and graphs - business studies and economics
Sets - grouping and categorization
To mention a few I can think of
Oh ok. Hi SaltnPepper. Thanks for the clarification. I was actually talking about an attack of a certain university by some terrorists in which a total of 147 students perished. Sorry for any confusion caused.
Cheers, math9maniac.
Hey there, bobbym and Chris2. Maybe in your part of the world, there exists overpopulation or population explosion, but also in other parts of the world, such as in developing countries, under population is actually evident. (So, let's say on a world range or level, the earth hasn't been filled to capacity. In fact, the earth has abundant resources to cater for more people. )
It is interesting to note that, there are some people-though they may be few-who believe that the world will be better in the not too far future. This group of people are also of the view that the betterment of the world will not be made possible by humans but rather, through divine intervention. For about 6000 years, all kinds of rulership have been tested and experimented: dictatorship, military regime, communism, socialism, monarchy, democracy, etc. Now, the question is, where has all of this led mankind? Herein lies the answer: Man has dominated man to his injury.
Isn't it also strange that, advancements and improvements in technology and knowledge have not helped in any way to lengthen man's life span? For example, diseases taking away loved ones despite medical advancements, many dying as a result of wars despite attempts to attain world peace?
I'm sure I posted a reply here yesterday and I see it's registered as such. However, can't find post. Where did it go?
6) Find the values of z for which dP/dz = 0 where P = 4z^3 - 2z^2 - 8z + 5.
7) Show that there is only one point on the curve y = x^4 - 32x + 10 where the gradient is 0 and find its coordinates.
8) Given that u = 4t^3 + 3t^2 - 6t - 1, find the values of t for which du/dt = 12.
9) Given v = 4s^2 - 12s - 7, find dv/ds. For what value of s is dv/ds = 4?
10) Given that the curve y = ax^2 + b/x has a gradient of 5 at the point (1, 1), find the values of a and b. What is the gradient of the tangent to the curve at the point where x = 1/2?
Excellent, bobbym. All answers are correct.
1. Differentiate s = 3t^2 - 4t - 2 wrt t.
2. y = 4x^2 - ax + 6. Given that the rate of change of y wrt x is 2 when x = 1, find the value of a.
3. Find the gradient on the curve y = 4x^3 - 10x + 1 at the point where x = -1.
4. The gradient on the curve y = ax^2 - 3x + 4 where x = -2 is 13. Find the value of a.
5. Find the coordinates of the points on the curve y = 3x^3 - 4x + 2 where the gradient is 0.
Dear ganesh, thanks for initiative. The exercises are absolutely helpful for revision. Got an exam to prepare for so will work out questions later. Have a question though. No. 16 made mention of 'synthetic division'. I've never heard that. What's it pls? Thanks.
Hey bobbym, you are a shark! Wow!
Regards, Ama.
Do you at times wonder what the world will be like in a certain number of years? Things getting worse or better?
Uhm, just wondering. Does this '147 caption' have anything to do with the mob attack at that university located somewhere in North eastern Kenya?
I appreciate folks like bobbym, and phrontister of course, who are eager to help out. Indeed we really got some mathematicians (or mathematicians in the making) on the forum.
Thumbs up, guys!
Hmm, when will I reach that level too.
And, oh! Lest i forget, thanks guest for sharing info.
Hey there, y'all. Both bobbym and phrontister are right. It is pretty obvious that the task is certainly impossible.
[Even if we brought back Einstein, Newton, Pythagoras or any of those folks from the dead, they certainly could not solve it. - LOL ;-) ]
3 odd numbers can NEVER sum an even number.
Who created this puzzle anyway? (Oops, hope that ain't offensive!) Did he/she know beforehand that it's got no solution and is perhaps only trying to pull someone's legs?
Revelation 21:4
And [God] will wipe out every tear from their eyes, and death will be no more. Neither will mourning nor pain nor outcry be anymore. The former things have passed away.
Psalm 37:29
The righteous will possess the earth, and they will live forever on it.
Isaiah 25:8
He will swallow up death forever.
1 Corinthians 15:26
And the last enemy, death, is to be brought to nothing.
Psalm 72:16
There will be an abundance of grain on the earth.
Interesting prospects of life. Aren't these?
Religion, is somewhat linkef to Science. As a Christian, I'll use an example from the Bible. For instance, scientists believed or asserted some time back that the earth was flat. The Bible, though not a Science textbook, had stated that the earth is round (Isaiah 40:22). Scientists and researchers found this out just somewhere in the 20th century. Also it was believed (and may still be believed) that the 'corners' of the Earth are supported by some carriers. Again the Bible had declared that the earth hangs on nothing (Job 26:7).
Science I suppose takes you closer to religion. Even today, some scientists doubt the evolution theory and are starting to believe in creation.
Hi everyone. I saw this problem in an exam of a junior class in my school (SHS 1 or [first year - high school]) anf shame on me, I can't get around it, since last two terms.
My age is a multiple of seven. Next year it will be a multiple of five. I am more than 20 years but my age is less than 80. What is my age? I'm sure and I hope answer is posted with solution/procedure.
Many thanks in advance.
Uhm, hi Bob, it seems your explanation is for GCF or HCF instead and not LCM.
So ganesh, what if I don't celebrate Easter? No wish?
Hi Nicole. Welcome to the forum. Looks like you and me have almost the same preferences (though I'm not sure myself how many i listed ib my introduction). It's a good thing you joined the forum. I believe you'll find what you're looking for and perhaps more over here.
Looking forward to being friends with you. I'm Ama by the way.
Pls would you mind telling which country you're from?
Many thanks bob and Olinguito. I seem to understand bob more. Expecting to hear from you again later.
:-) ;-)
Hello Agnishom. I don't have a favourite colour really though most of my life has involved green.
Nice to meet you folk.;-)
Was that more than necessary information for an introduction?
Sure Bob. I'm definitely interested in the proof.
Dear bobbym, I was saying hi to you in my introduction but wrote bobby instead. Sorry. Ok so hey there bobbym.
Pick any 4-digit number at all (should not have the same digit throughout). Rearrange the digits to form as many 4-digit numbers as possible. From the range of numbers (including the one you first picked), subtract the least from the greatest. If the difference is a 2-digit number add the digits together.
The idea behind this is no matter what your answer will always be 9. Yes try it now.
Hi y'all especially to ganesh, bobby and Jane Fairfax ( hope I got the spelling right ). I've just joined the forum though I've been a guest for quite some time.
I registered as mathmaniac only to be told that someone was already using that name so I just inserted 9 cos that's my favourite number. I make good grades in school with math and I'm enjoying it a lot these days. ( But I'm not always good with logic ). Math can be fun sometimes you know.
I hope to make one or two friends here. Hello? ??????? Anyone from France? S'il vous plaît, soyez mon ami(e)