₦airaland Forum

If you came to check if any of them look like u.
Gather herr

Let the border remain closed.
Let us eat our Local food.
The GT pounded yam and eguisi soup with cat fish
go well today pass before,

My brother food full everywhere for this country.

solmusdesigns:




So we should give him a National Award abi?




..

Bad bele doctor,
You can't see any good thing from a nurse.
Doctor way no know book

tolulopevoice:
please can you help with proper and clear solutions

full shape is a share

Volume of a hemisphere is 2/3πr^3

Volume 2/3×22/7×14^3

Volume =5747cm^3



But the portion cut out from it is 45° out of the hemisphere

So it will be 45/360 of hemisphere volume

Volume cross section =1/8×2/3×22/7×14^3

V CS=718.38



volume of solid=volume of hemisphere-volume of cross section

Volume of solid=5747-718.38

Volume of solid =5030cm^3

tolulopevoice:
please can you help with proper and clear solutions

Your problem is that you don't respond quick
I am solving this thing using mental work, so their is high chance of error,
If you respond quick I will know if you check my solution again,
But your response is every 12 hours.

bewla:
4036



I tell them olodo go win something

You answer is incorrect.
The correct answer is
.4036

coker007:
The answer cannot be C because if it were it would be written as four thousand and thirty six , plus in numerics four zero three six isn't a whole number unless a period (.) Is before the decimals, therefore the answer is none of the above

Thank you
You are the only one that got it,

They all failed,
You read in one digit each after the decimal.

Maximus69:
That's why i said it's a great idea, but Apostates will not allow for the upbuilding of the body of Christ.
They are modern day Diotrephes! 3John 9
So try it on a WhatsApp GROUP chat where unwanted guests will be barred!
Agape!

Ok I will try to get a WhatsApp link for that purpose.
If u have any existing one you can share.

tolulopevoice:
the answer at the textbook says the volume is 5030cm³

TSA of solid =TSAhemisphere-TSA of outer cross section+ area of two quadrants +area of roof sector

TSA of solid=2πr^2-1/8×2πr^2+1/2πr^2 + 7/8×πr^2

TSA of solid =3.125πr^2

=26900cm^2

tolulopevoice:
the answer at the textbook says the volume is 5030cm³

7/8 πr^3=7/8×22/7×14^3=5028.84~5030cm^3

tolulopevoice:
the answer at the textbook says the volume is 5030cm³

I know what they did,
The assume that same is an hemisphere, although they told us but we can see a sphere their

Maximus69:
Thanks Sir,

We are jw.org!

Is like the group is not serving its purpose,
I might take it down soon.

[quote author=tolulopevoice post=84035124][/quote]Check my previous solution I have attempted it

tolulopevoice:
still waiting for correct solution to this please

Tell me which of my solution is not correct?
Let me look at the question again

tolulopevoice:
still waiting for correct solution to this please

Tell me which of my solution is not correct?

At 2kobo per cm^2
Cost =(2/100)×2772
=#54:44

TSA of solid =TSAsphere-TSA of outer cross section+ +TSA of inner criss section +area of roof and floor sector
TSA of solid=4πr^2-1/8×2πr^2+2/8 x2πr^2 + 2/8×πr^2
TSA of solid =4πr^2+3/8πr^2
=πr^2 (18/4)
=22/7×14^2×18/4
=2772
~2770cm^2

tolulopevoice:
Mathematicians in the house solution to question 10 please

The full shape is a share
Volume of a sphere is 4/3πr^3
Volume O SPHERE= 4/3×22/7×14^3
Volume of sphere=11494.04

But the portion cut out from it is 45° out of the hemisphere
So it will be 45/360 of hemisphere volume
Volume cross section =1/8×2/3×22/7×14^3
V CS=718.38

volume of solid=volume of sphere-volume of cross section
Volume of solid=11494.04-718.38
Volume of solid =10800cm^3
@martinez39

Martinez39:
Correction for me. My formula for volume is wrong and I miscalculated on that. The rest is correct. I await the input of other mathematicuans.

Given R = 14 cm² and π = 22/7

1) V = (1/8 )(2/3)π(R³) ≈ 718.67 cm³

2) A = (7/8 )π(R²) = 539 cm²

3) Cost of painting 539 cm² at 2k per cm² is (2 × 539)k = 1078k


Cc. Mrshape, darivie04

I am still at work if I get home,
I will bring my suggested solution with workings sir

Martinez39:
Correction for me. My formula for volume is wrong and I miscalculated on that. The rest is correct. I await the input of other mathematicuans.

Given R = 14 cm² and π = 22/7

1) V = (1/8 )(2/3)π(R³) ≈ 718.67 cm³

2) A = (7/8 )π(R²) = 539 cm²

3) Cost of painting 539 cm² at 2k per cm² is (2 × 539)k = 1078k


Cc. Mrshape, darivie04

The volume is 10800cm^3
Check again please,
Because you calculated for the volume of the
Cut out section only

Martinez39:
The first important thing to observe is that the region described is one-eighth of the spherical region.

Given that R = 14 cm ,
1) V = (1/8 )(4/3)π(R³) = (11 × 392)/6 ≈ 718.67 cm³

2) The surface area of the region consists of one-eighth the surface of the sphere; two quarter circles of radii 14cm; and one-eighth of a circle of radius 14cm. (think deeply about this and calculate the area)
A = (7/8 )π(R²) = 539cm²

3) If 2k is for every cm², 539cm² will cost (2 × 539)k = 1078k



Cc. Mrshape, Darivie04

I am in a class now I will check on it sonn

Dechymmytv:
op try and read what you wrote... Ah, and you say you have students

I ust read it for the first time when people started complaining about it.
But unfortunately I can't edit it again, the mod can only edit fronts page post

midnighter:
Its not typo my dear teacher. We can understand typo

As in the entire essence of your post doesnt make sense. We all cant understand a word you are saying, dont you think its bad

Youre telling somebody sorry for your brain crash but you dont even feel anything when youve announced that youre a teacher and nobody can grab your write-up. Too bad

Please let me alone I am not an English.

ArcGibson:
[/b]

Chaiii, there is God o

DOES blood blunders you are sharing will answer

Contunu!

Abeg make you guys should go with your English,
Before I will continue to make more errors.

Please let me ALONE I am not an English.

midnighter:
Could you please go back and write that stuff with simple English?

Youre a maths teacher and you dont know how to explain something to a layman or what? So how do you teach the kids

How exactly are we supposed to grab that amalgamation that you wrote?

I can't modify it again since it is on fp, the post is no longer mine but the mod.
Anyway does errors are typo,

sotall:
My brain crashed severally while trying to read this thing you wrote

And you are a teacher

Yes I am a maths teacher and I am interested in numbers and pattern
Not a limited language called English.
Sorry for your brain crash, try to restore it as quick possible

That dog own happened in my area few months ago

A lot of us have been requesting for the formula of chika
Even someone said want does a Small boy of 12years know to discover something I. Maths.

Someone just sent me a copy here on Niaraland.
I found out that is more than a formula. It is a test and a pattern.

As a matter of fact, I have just learnt it and a lot of my students too, have started using it.

Yes he solved a problem.

Numbers that 2,3,5,10, can divide can be easily identified.
But number that 7 and 11 can divide other their are other ways to identify it
But it hardly stick.

But this chika's test I just so easy in that if reduce the large number to smaller easy to comprehend numbers of which a decision can be easily made, here is the formula if you have any step u don't understand I will be glad to explain what master chika's test for u.

[quote author=Anambralstson post=83959397][/quote]That is a great number theory and pattern, I am seeing more than division here, it can be use to make great engineering design in nuclear, civil, mechanical and biological processes,
Even in AI and machine learning, great pattern I see there
The boy his a great Archiver
Thanks for sharing the formula.

And last shame to that user that said what does a Small boy know to invent something in maths.

franchasng:
That's why I said only trained engineers will understand. People always make mistake of thinking medical doctors are the smartest but heck they are wrong. I would have studied medicine if I loved seeing blood, that was the only barrier why I didn't study medicine.

But maybe in future to come I will study medicine to prove a point just as I am studying law now to prepare myself ahead of troubles I am going to be making with government and the thieves in Nigeria called politicians. I am ready to shake Nigeria with lots of trouble, so an Engineer can be a troublemaker too.


I forgot to mention that majority of bestselling authors are also engineers, and I am also an author.

Engineering prepares you to be versatile, that's one thing I love about engineering.

That's true I am also thinking of studying medicine just to prove a point that their is nothing in it.

This man might just be playing a game with am aim to also cash put from the recent booming business
Money no day satisfy person o.