Mathematics: Post your doubts here!

[Phoenix Blood]

give me ur calculator name so i can now wether u have that keys or not like my calculator too does not have some functions

fx-991MS
You are SO COOL!
Do you have the same? Pl show how to use...

 

[Phoenix Blood]

to solve quadratc formulas press for eg in eqn a=2,b=3 &c=5
2then click on shift the Button named RCL and then just press where it is written A press it A value will be set to 2 than do that for all numbers then right the formula like -B+square root(B^2-4AC)/2A first with positive than with negative to check ur answers

Shear thanxxx! Besides that?

 

[Usman Abdul Jabbar]

Question:

The number of fish on a farmincreases by approximately 10% each month. If there were originally 350 fish, calculate to the nearest 100 how many fish would there be after 12 months ?

(Question from IGCSE Mathematics by Hodder Education 3rd Edition)​

Guys I got an answer with round off of 800 but in the answers it has 1100 please tell me why is it 1100.


Thanks

 

[Phoenix Blood]

Question:

The number of fish on a farmincreases by approximately 10% each month. If there were originally 350 fish, calculate to the nearest 100 how many fish would there be after 12 months ?

(Question from IGCSE Mathematics by Hodder Education 3rd Edition)​

Guys I got an answer with round off of 800 but in the answers it has 1100 please tell me why is it 1100.

Thanks

Compound interest formula: P* (1+(r/100)) ^t

P=350
R=10
T=12

 

[Phoenix Blood]

http://onlineexamhelp.com/past-pape...-wise/0580-mathematics-igcse-past-papers-2013

0580_w13_qp_42
Question,5, (d) (ii)
Pl show how to go about...

 

[Phoenix Blood]

eureka!

 

[eureka!]

http://onlineexamhelp.com/past-pape...-wise/0580-mathematics-igcse-past-papers-2013

0580_w13_qp_42
Question,5, (d) (ii)
Pl show how to go about...

Asarb.
2/x2 - 1/x2 - 3x = 10 - 3x
Get the -3x on the other side of the equation, so +3x and -3x cancel out each other.
Now, 2/x2 - 1/x = 10
Make both denominators common by multiplying 1/x by x.
Solve 2/x2 - x/x2 = 10:
(2-x)/x2 = 10
Get the x2 on the other side by multiplying it with 10.
Now, 2 - x = 10x2
Make it quadratic:
0 = 10x2 + x - 2

So a=10, b=1, c=-2!

 

[Phoenix Blood]

Jazakillah

Asarb.
2/x2 - 1/x2 - 3x = 10 - 3x
Get the -3x on the other side of the equation, so +3x and -3x cancel out each other.
Now, 2/x2 - 1/x = 10
Make both denominators common by multiplying 1/x by x.
Solve 2/x2 - x/x2 = 10:
(2-x)/x2 = 10
Get the x2 on the other side by multiplying it with 10.
Now, 2 - x = 10x2
Make it quadratic:
0 = 10x2 + x - 2

So a=10, b=1, c=-2!

 

[Usman Abdul Jabbar]

Question:

The number of fish on a farmincreases by approximately 10% each month. If there were originally 350 fish, calculate to the nearest 100 how many fish would there be after 12 months ?
(Question from IGCSE Mathematics by Hodder Education 3rd Edition)
Guys I got an answer with round off of 800 but in the answers it has 1100 please tell me why is it 1100.

Thanks

 

[Usman Abdul Jabbar]

Question:

The number of fish on a farmincreases by approximately 10% each month. If there were originally 350 fish, calculate to the nearest 100 how many fish would there be after 12 months ?

(Question from IGCSE Mathematics by Hodder Education 3rd Edition)​

Guys I got an answer with round off of 800 but in the answers it has 1100 please tell me why is it 1100.

Thanks

 

[eureka!]

Jazakillah

Hope it helped.

 

[Phoenix Blood]

Hope it helped.

Yo, it did!

 

[Phoenix Blood]

Yo, it did!

I'm getting really poor at math. Done with two papers with zillions of un-understandment (!) already

 

[eureka!]

I'm getting really poor at math. Done with two papers with zillions of un-understandment (!) already

Oh, come on! You always do rock the paperWA, mate!

 

[Phoenix Blood]

Oh, come on! You always do rock the paperWA, mate!

I don't rock it. I simply get a little more of a number than many. What with 60% being the highest, do I then still rock it? *hopeless* :/

 

[eureka!]

I don't rock it. I simply get a little more of a number than many. What with 60% being the highest, do I then still rock it? *hopeless* :/

60 the highest? What are you talking about?

 

[Phoenix Blood]

60 the highest? What are you talking about?

Yea. Whats the max one has got? :'(

 

[Phoenix Blood]

0580_w13_qp_43
Question 1, (b)
Question 4, (c)

eureka! Umar Ahmed
***amd*** Awesome12

 

[***amd***]

0580_w13_qp_43
Question 1, (b)
Question 4, (c)

eureka! Umar Ahmed
***amd*** Awesome12

link?

 

[Ahmad Sammy]

Hello. I need help understanding May June 2010 q-41 question 7 c i) and ii)
Thanks in advance.
Link:
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_41.pdf