₦airaland Forum

10qs 4 d@ ability 2 c n say w@ is ryt @ yemmyt, buh help luk in2 dis 1.
a water tank leaks @ d rate of 2cmcube per sec. hw lng will it take 2 fill d container of 45litres capacity

labodinho: datz true.

@farano, labodinho, yemmyt n others, luk @ my maths questions nw n also d 1 @ maths gurus

pls help manage dis ma questions.
1. d mean height of 10 boys is 1.60m and d mean height of 17 girls is 1.52m. find d mean height of d 25 boys and girls
2. find d difference btw d mean n d median of d numbers 1,2,3,4,5,7,9 and 10

rashywire: pls i
need d answer n d solution
QUESTION
A MAN IS X YRS OLD WHILE HIS SON IS Y YRS OLD. D SUM OF THEIR AGES IS
TWICE D PRODUCT OF THEIR AGE. IF D PRODUCT OF THEIR AGE IS 675, FIND D
AGE OF D MAN

m still waiting 4 u guys 2 solve oooooooo

[quote
author=mastermynd]hello great aspirants,
i hav followed dis thread for about a week or so,,,and i must
confess,hav fallen in luv with d thread already..,,thumbs up to
yemmy,farano,ortrarico,labodinho,lurve,calculux,busyguy,rashywire,donmayor,asiko,
and everybody,,.
Am in for psychology,bt hav a low jambscore of 202,,,any advice[/quote]dnt worry, just prepare 4 d putme, d low score is general, u'll meet ur fellow departmental mates in d thread. u re welcum

pls i need d answer b4 3pm.
QUESTION
A MAN IS X YRS OLD WHILE HIS SON IS Y YRS OLD. D SUM OF THEIR AGES IS TWICE D PRODUCT OF THEIR AGE. IF D PRODUCT OF THEIR AGE IS 675, FIND D AGE OF D MAN

[quote
author=Lurve]which of the following expressions is correct? 1(a)you
cannot eat your cake and have it (b) you cannot have your cake and eat
it. 2(a)you are in the soup (b)you are in soup. 3(a)rest assured (b)be
rest assured. 4(a) to be on the safer side (b) to be at the safer side.
5(a) benefit of doubt (b) benefit of the doubt. 6(a) bite off more than
you can chew (b)bite more than you can chew[/quote]BBBBAB, mark me pls Lurve

who will serve us breakfast nw, y re u guys doing like dis? letz pls giv questions b4 it turns 2 lunch

echibuzor: .
.
I believe that answer is most correct sir..ask any examiner....

mayb d texts solve rubbish 4 him, hweva, daz d way i learnt probability sha

emekakelvin: Do u believe ur dat ur answer is wrong

is it according 2 d text u r using or generaly?

Ortarico: True shaaa. . . . .I saw your posts on the gurus' thread, what course are you applying for boss?

elect sire

[quote
author=emekakelvin]gud p.m everyone, pls dis is my 2nd time of posting
on ds thread,
pls i have gat some problem with probability, i would be grateful if any
one help me out(pls i apologise wif all sincerelity for any blunder in
my writting)

QUESTION
What is the probability that a number chosen at random from d integers
1-10 inclusive is either a prime or multiple of 3?
a)7/10 (b 3/5 (c 4/5 (d 1/2 (e 3/10
abeg d answer may i get dey option but my textbook fail am 4 me-
tanx[/quote]solution
no of prime btw 1-10 = 4
no of multiples of 3 btw 1-10= 3
pr(prime or multiples of 3) = 4/10 + 3/10 = 7/10

Ortarico: Praise the Lord!

We still try or havn't I said it welln I'm sure b4 d exam, pple on dis thread will hav jack all texts n pack. Success oooo. Letz keep it rolling, cos I knw if we dnt set back, nairalanders will dominate Admission list

[quote
author=lanrexlan]There's aren't many Futa aspirants on NL.Elect/elect
is a very competitive course in Futa,I also choose it but as 1st
choice.Brother,you will have to work very hard in post utme,maybe
scoring 80 and above.[/quote]Aiit sir, may God help us, watz ur score?

mark me on d@ spelling farano
1 fullscap 2. d 3 d 4 a 5 b 6 a 7 b 8 b 9 4 10 c

Mr Calculus: log(x^2+7x-2)base2=log(x^2+3x-6)base2+log8base4..
log(x^2+7x-2)-log(x^2+3x-6)=3/2log2base2..log2base2=1,
log(x^2+7x-2)base2/log(x^2+3x-6)base2=3/2.
.logbase2 cancels each other
(x^2+7x-2)/(x^2+3x-6)=3/2..
.cros multiply
x^2+7x-2=3/2(x^2+3x-6)..
multiply both by 2
2(x^2+7x-2)=3(x^2+3x-6)
2x^2+14x-4=3x^2+9x-18...by colectin lyk tems u'l get
x^2-5x-14=0..quadraticaly x=7 or x=-2

u've done gr8 sire, buh LogA / Log B is not equal 2 A/B sire, dis may probably be w@ dey did in d text book. more power 2 ur elbow bro

doubleDx: I actually wanted to type 1.414 for √2. So I'm reposting ====>>>>>>>>>>>>>>


Solution

Log(x² + 7x - 2)₂ = Log(x² + 3x - 6)₂ + Log8₄

Log(x² + 7x - 2)₂ = Log(x² + 3x - 6)₂ + Log2³_2²
Log(x² + 7x - 2)₂ - Log(x² + 3x - 6)₂ = 3/2Log2₂

Log2₂ = 1, also we have same bases on the LHS, so we apply the law of log here to yield=>

Log{(x² + 7x - 2)/(x² + 3x - 6)}₂ = 3/2 * (1)

Eliminating Log₂ yields =>

(x² + 7x - 2)/(x² + 3x - 6) = 2^(3/2)
(x² + 7x - 2)/(x² + 3x - 6) = √2³
(x² + 7x - 2)/(x² + 3x - 6) = 2√2
x² + 7x - 2 = 2√2 (x² + 3x - 6)
x² + 7x - 2 = 2√2 x² + 6x√2 - 12√2

Collecting like terms yields =>

x² - 2√2 x² + 7x - 6x√2 + 12√2 - 2 = 0
x²( 1 - 2√2) + x (7 - 6√2) + 12√2 - 2 = 0

Applying quadratic formula to the above =>

a = ( 1 - 2√2), b = (7 - 6√2) and c = 12√2 - 2
x = {-b±√(b² - 4ac)}/2a
x = {(6√2 - 7) ± √[(7 - 6√2)² - 4(1 - 2√2)(12√2 - 2)]}/2( 1 - 2√2)

√2 = 1.41 approx, substituting and evaluating yields =>

x = {(6(1.41) - 7) ± √[(7 - 6(1.41))² - 4(1 - 2(1.41))(12(1.41) - 2)]}/2( 1 - 2(1.41))
x = {1.46 ± √(2.23 + 108.62)}/(-3.64)
x = [1.46 ± √110.85]/(-3.64)
x = [1.46 ± 10.53]/(-3.64)

Splitting =>

x = (1.46 + 10.53)/(-3.64) or (1.46 - 10.53)/(-3.64)
x = 11.99/(-3.64) or 9.07/3.64

Rounding the values of x to one decimal place yields=>

x = -3.3 approx or 2.5 approx

i'm very grateful sirs, infact u've done d great 1, hw i wish i knw maths like dis. it's absolute 4 gurus like u pple, I'll bring another 1 d@z mad 2 me cos i knw dey re fufu 2 u guys. more power 2 ur elbow guys. 10qs a thrillion times

Mr Calculus: Plz cross check d quest again

datz exactly w@ i see in d text

take dis pls
the girl cannot speak with a clear voice, she is alway ... A blabbing B vociferating C stuttering D gesticulating

DONMAYOR19: just told U̶̲̥̅̊ is not in current english language, is now anachronistic(outdated) just like word such as amongst( wich is now among) or quench wich is now put off....in present english, three times is preferable 2 thrice, as thrice is outdated...takia

daz hw it was stated in invicible teacher, i go 4 c in d@ question. Thrice is old language. Pls letz understand d rules guiding those question b4 going 4 d exam. Success

echibuzor: U are stuck at find a root for 8 abi? same here.. lets see if someone else have got ideas...

letz wait 4 other gurus, cos d question is smhw. If u hav godman if any of u guys hav d book, check d revise exercise, d question is there but their answer is 7 which does not satisfy d equation. I knw u guys wil do it d@z y i posted it, if it cnt b solve, pls tel me wat wil b xnge in d question 2 make 7 true.

will u pls mark me @ buzyguy
d c a d c d b a a c

@ farano, pls mrk me.
1. Not clear
2 a 3 b 4 c 5d 6 c 7 b 8 c 9 a 10 c

gud mawning guys, hw was ya 9t. 10 questions will b set wen it's 8:00am prepare

fasodecapo: log₂(x² + 7x -2) = log₂(x² + 3x - 6) + log₄8;
log₂(x² + 7x -2) = log₂(x² + 3x - 6)+ 1/2log₂8;
log₂(x² + 7x -2) = log₂(x² + 3x - 6) + log₂8^3/2;
log₂(x² + 7x -2) = log₂(8^3/2)(x² + 3x - 6);
x² + 7x -2 = (8^3/2)(x² + 3x - 6);
please check the question very well if it's truly base 4, if it is notify me to finish this.

boss it's base 4, pls i need d answer b4 2:00pm 2day. richies letz all luk @ d question

i choose futa as my 2nd choice n elect/elect as d course, score 221 in jamb, watz my chance pls. Buh d trend is dull smhw, y dis

labodinho: Sir,itz gonna be solved.I went thr for acquitance too buh wil luk into it.

k, buh i realy need d solution n it's urgents

oh boi i don miss ooo. Trend don full already. Hweva, prepare 4 10questions guys. @ labodinho una no do am wel oo u con bone my maths quest ion in maths gurus. Pls help solve am n calculus

labodinho: Yee!! E ma binu sir o,sekowale?? We go meet,if u see chem qustn today ehn,i feel like crying wen dem mark finish.I wonder d planet dah chem came frm.*reminds me of today again*Sobs*

labodinho: Yee!! E ma binu sir o,sekowale?? We go meet,if u see chem qustn today ehn,i feel like crying wen dem mark finish.I wonder d planet dah chem came frm.*reminds me of today again*Sobs*

labodinho: Yee!! E ma binu sir o,sekowale?? We go meet,if u see chem qustn today ehn,i feel like crying wen dem mark finish.I wonder d planet dah chem came frm.*reminds me of today again*Sobs*

pls where cn we do d departmental subjects

rashywire: Log(x sq + 7x - 2) base 2 equal to Log(x sq + 3x -6) base 2 + Log8 base 4

pls urgent answer

Log(x sq + 7x - 2) base 2 equal to Log(x sq + 3x -6) base 2 + Log8 base 4

makin a phone call instead of paying a visit represents a .... trend
(a) sudden new major social (b) new social sudden major (c) new sudden major social (d) sudden social new major