₦airaland Forum

joshuakdboy:
The picture isn't clear. forward it to my whatsapp on 09056880123 let me help you with it.

Festy4u:
Let y=Log(2x-1) to base 10
Therefore, 10^y = 2x-1
Take the natural log of both sides
Ln 10^y = Ln (2x-1)
Y Ln10 = Ln (2x-1)
Take the derivative of both sides wrt x
(dy/dx) Ln10 + 0 = (1/2x-1)x 2
Therefore, dy/dx =( 2/2x-1)(1/Ln10)

naturalwaves:
4 workers get paid 160,000 for 5 days
1 worker will get paid 40,000 for 5 days
1 worker will get paid 8000 for 1 day
5 workers will get paid 8000*5 for 1 day
Therefore,
5 workers will get paid 40,000 for 1 day

masperano:
-1/(x^2-3x+2)^0.5

tobillionaire:
use maclaurims series to expand ln(√x+1/√x-1) to the term x^7
use D'alemberts ratio test to fiind if
(-1)^n-1.n÷n²+1 diverges or converges pls help bosses

agentofchange1:
Here

personal59:
Please help me out its urgent Please help me out its urgent

joshuakdboy:
It's time for my night meditation. I will continue at dawn.

joshuakdboy:
It's time for my night meditation. I will continue at dawn.

personal59:
am submitting it tomorrow. morning on d whatsapp am having issue with my what'sapp application that's y I post it here

naturalwaves:
Which one uses yet to be unsolved? Let me know. Everyone seems busy nowadays. Sorry I am just seeing this. Hope it is not too late?

personal59:
12345 av been done

coliboyswag:
please I need a quick answer On this inequalities
1/3x+1/4<3x/8

coliboyswag:
please help me with this inequality
1/3x+1/4<3x/8

naturalwaves:
Here you go:

naturalwaves:
I just did now. Look up.

masperano:
Hi Natural waves how u dey ?I think u made an error . It should be x less than -2/3 nd x greater than 4/3

personal59:
Please help me out its urgent Please help me out its urgent

coliboyswag:
The answer am seeing on the text book is x>6

naturalwaves:
Maybe you are looking at the wrong answers. What textbook is that?

masperano:
Lolzz. Yea I think he wrote the question wrongly, he wanted to write x/3 rather than 1/(3x) that is the only way you can get x greater than 6

naturalwaves:
Hi bro. I dey o. Let me check through. Thanks.

Modified :
I did not divide with a negative number. So, the signs cannot flip. It can only flip if I divide with a negative number.
Let us carry out a small test.
From........3X greater than -2
I said....... X greater than -2/3
This means... X greater than say -0.7 approximately
If you try in all the numbers that are greater than -0.7, they will all satisfy the equation 3X greater than -2. For example... -0.6,-0.5,-0.4 etc. If you substitute all these values into 3X greater than -2. The answers you get will all be greater than -2 but if you pick a number that is less than -0.7 say -0.8, you will get something like -2.4 which is less than -2 thus not satisfying 3X greater than -2. If you keep on trying all the numbers that are lesser than -0.7 like -0.8,-0.9-1,-2.2 etc etc, none of them will satisfy the relation 3X greater than -2. So, the signs won't flip.
You can even try out all these values into the preceeding relation 3x + 2 greater than 0 and they will all turn out same way. Thanks.
Cc: masperano

naturalwaves:
Thanks for the rescue. I have actually lost touch with longitude and latitude.
@Personal59. Solutions have been provided for the remaining questions 6,7,8,9,10. Good luck!

coliboyswag:
The answer am seeing on the text book is x>6

masperano:
erm i don't really think so i think if you try out the solution you got it wont satisfy your quadratic inequality you solved(i am assuming the quadratic is correct) . for example according to your solution , zero is a solution since it is greater than -2/3, plug it into your quadratic inequality and see if it satisfies?