Collins

This page lists questions and answers that were posted by visitors named Collins.

Questions

The following questions were asked by visitors named Collins.

What is molecular mass of CuSO4(NH4)SO4.H2O

(1):Y=|n(3x^2+2) (2):y=e^(x^3+x)

Find the limit of f(x)=1/(x-1) as approaches 1 think inifnite limit

I have some bananas on sunday,on monday morning i ate some of them and at night it became double,on tuesday morning i ate same number of bananas and at night also it became double,this process continued till saturday and all the bananas were finished.find...

I have some bananas on sunday,on monday morning i ate some of them and at night the bananas became double on, tuesday morning i ate same number ,and at night the bananas so became double.this process continued till saturday and all the bananas were finish...

The following simultaneous equations are written in base two 11x+10y=10001 10x-y=10 solve and live your anser in base two?? plz help tnx

In order to save one million naira for the purchase of some goods a man save #1,#2,#4 #8 on the first,second,third and fourth day respectively.At this rate assuming that no interest was added (a):what amount was saved on the 15th day? (b):at least how man...

The nth term of a sequences of v1,v2,v3 is given by Vn=6 2^n (1):show that for all value of n>1 Vn1=2(Vn-3)?? (2): obtain and simplify the sum of the first n term of the sequence??

Integrate sin6xcos5xdx?

If the daimeter of a sphere is increased the volume will be increased by x% find x?

X+y+z=2 x^2+y^2+z^2=3 x^3+y^3+z^3=5 find x,y,z.....?? honestly i having being battle with that question for ova a month i need help and a cerious explanation

37 men each do 7hours 35min work in a day,per what total working time in a week per six days,dose their employer have to pay wages????

The average wage of a class of 21 boys is 14year 3month.if the oldest boy is not counted in,the average drop to 14years 2months.how olds is he in the class ????

The average age of a class of 21 boys is 14year 3month.if the oldest boy is not counted in.the average drops to 14years 2month,how old is he???

X^x(root(x)=(xroot(x)^x???? Find x

If the diameter of a sphere is increase by 20% the volume also increased by x% find x??

In how manys ways can nine women be sitted on a round table if two paricular women must not sit next to each other??

Question(1):A G.P has a common ratio of 2 find the value of 'n' for which the sum 2n terms is 33 times the sum of n?? Question(2):in A G.P the product of the 2nd and the 4thterm is double ,the 5th term and the sum of the first 4 term is 80.find the G.P??

Question1:2^x+y=6,3^x-y=4 find x and y???? quesstion2:a^2+b^2=7ab show that log(a+b)=log3+(loga+logb)/2????

If logxbase2x=a log2xbase3x=b log3xbase4x=c show that abc+1=2bc??

X^x=100 findx? these question is still like a black magic to me

If 2^2011 is divided by 13 what is the remainder???

Show that sin(A+B)=sinAcosB+sinBcosA... diagram can be use if necessary

Integrate (6x^2-cos(2x))dx??

What must be added to x/y to make it y/x??

A fighter plane is flying horizontally at a constant speed of 600km/hr and the pilot observes an oil drolling platform in the sea at an angle of depression 60degree,after flying in 30sec.in the same direction the pilot notices that the depression angle ha...

X+y+z=1......(1) x^2+y^2+z^2=35........(2) x^3+y^3+z^3=97.........(3) solution but from 3 (x^3+y^3)=(x+y)^3-3xy(x+y)......(4) puting 4 into 3 bck (x+y)^3-3xy(x+y)+z^3=97.......(5) now from 1 x+y=1-z......(6) putin 6 into 7 we have (1-z)^3-3xy(1-z)+z^3=97...

In a football match A vs B in which 7 goals were scored and A won the match what is the probability that the score is 7-0 ??????

1997^913 when it is divided by 10 what is the remainder???

|x-3|=|3-x| find x???

How many 4 digit codes can we make provided that -the codes contain of numbers only -codes may not equal to 4000 -codes may not be less than 4000 -numbers may be repeated -codes have to be even numbers??????

Prove that (1-sinb)/(1+sin2b)=tan^2(45-b) plz the b means beta???

X/y=z prove that 13/12=2???

In a form 1A class there are 25 boys and 20 girls.in a form 1B there are 20boys and 15girls.A learner is choosen at random from each class.find the probability that (a):both learners are boys (b):the choosen learners are of different sexes????

Find dy/dx if x^2.y+sin(xy)+y^4.x^2+3xy=5???

(a):how many digit number can be formed with the digit 2,2,2,3,3,4,5 (b):how many of these are greater than 3400000 (c):how many are greater than 3400000 and are divisible by 5 (d):how many are greater than 3400000 and are even ????

A rubber band is use to tie 9 oranges of diameter 8mm.if the band just touches 8 oranges .find the lenght of the band??

The cost C of running a ship on a certain voyage is said to be given by c=av+b/v where v is the average speed in km/h and a,b are constant.find the value of v in terms of a and b to give the maximum cost,and also find the cost???

If (x+1/x)^2=3 then x^72+x^66+x^54+x^36+x^6+1=?? Plz help so confuse

You ar given that root(59.3) = 7.70 and root(5.93) = 2.44. Find root(59300)???

If 3% of electric bulb produced by a company are defective find the probability that in a sample of 100bulbs (a) 0 (b) 1 (c)2 d(3) bulbs will be defective???

A spring makes 60 revolution in 15mins calculate the period and the frequency of the revolution??

(1):Given the cost function c(x)=10+2x and the revenue functio r(x)=3x,find break even quantity and the price (2):if the marginal cost of producing x unit is given by c'(x)=0.4x^3+2x and the fixed cost is p4000.00 find the cost function c(x) and cost prod...

in triangle ABC b=6 c=8 and angle A=60degree find the area of a triangle.let AD be the bisector of A where D lies on BC and AD=K?? Show that AD=24root3/7...

To what value does the sum of 20+12+36/5+.............tends to infinity??

In Triangle ABC b=6cm c=8cm and angle A=60 find the area of a triangle.let AD be the bisector of A where D lies on BC and AD=K show that AD=24root3/7

A car travelling at 60km/hr started a journey travelling in an oppsite direction to his destination.After travelling for 35min the driver realised his mistake he then turn the car back around and started travelling in the correct direction.how far away is...

Integrate x^xdx?? help so the solution it to difficult for me

Integrate x^xdx it is to difficult if wolfram can help any link or something

If y=ws^3/d^4 find the percent increase in y when w increase by 2% s decrease by 3% and s decrease by 1% plz show the full solution the question is byond my power

If z=1/(x^2+y^2-1) is x(dz/dx)+y(dz/dy)=-2z(1+z) or -z^2(1+z) note:dz/dx=partial derivative of x and dz/dy=partial derivative of y??

If € , ß are the roots of the equation 2x^2 + 4x - 3 = 0 and €^2 , ß^2 are the roots of the equation x^2 + px + q = 0, find the value of p.

If y=ws^3/d^4 find the % increase in 'y' when 'w' increases by 2% and 's' decreases by 3% and 'd' increasee by 1%...... There a little error in the first question i post here it is plz i need the working and explanation

The lenght of a line segement is of 10units and the co-ordinate of one end point are (2,-3) if the abscissa of the other end is 10 find the ordinate of the other end?? Working plz plz

|BM|,|CN| are altitude of a triangle ABC if AB=3.5 AC=3.2 BN=2.1 calculate the area of the triangle and hence find |CN|.......show working plz i don't no it

Show that Sin(A/2)=root(1/2(1-cosA)??

Last three year kemi who happens to be my sister was 2wice as old as my lovely brillant primary school friend femi,last three years when i was two less than femi age now.the sum of kemi age in the next 9years and femi age noe and my age in the next three...

Last year kemi who happens to be my sister was 2wice as old as my lovely brillant primary school friend femi,last three years when i was two less than femi age now.the sum of kemi age next 9years and femi age now and my age three year will be equal to 60....

Prove that the integral 1/root(ax^2+bx+c)dx=1/root(a)|n(2ax+b+2root(a(ax^2+bx+c)]+k....please i don,t no it

Show that cos^2(theta)+tan(theta)cosec(theta)=cos??? Show work

Integrate:Sinxcosx/a^2cos^2(x)+b^2sin^2(x))dx??? plz i need the full working too hard for me

X^-y=158 y^2-x=108 find x and y?? Show work

Solve using implicit derivative cuberoot(x)+cuberoot(xy)=4y^2

Find the integral of §x^1/2.e^xdx at upper limit of 1/2 and lower limit of zero..show work plz

Find the equation of the line tangent to the parametric curve define by x=cos2t and y=sin3t and t=pi/12 plz i don't no where to start from show working

Plz help me solve for x and y x^3+y^3=1 x^4+y^4=1 help???

A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water pump for this fire hose? Is the answer 5880W? If yes, why so?

If a function u(x,y)=arctan(y/x) deduce the laplace equation of the function. plz show working i don't no where to start from...plz thanks

The earth moves round the sun in one year.the average earth-sun distance is 1.5*10^11m given that the mass of the earth is 5.98*10^24kg (a):the angular momentum of the earth??? (b):kinetic energy of the earth motion?? (c):kinetic energu of the earth motio...

X^x+y^y=31 x+y=5 plz help i was told to use newton litrate method plz help

4x^2+8x-m=0,differs by 3 find the value of the constant m plz help me??

From (p-q)^2+(q-r)^2+(r-p)^2>(pq+qr+rp) hence deduce that for any number p,q,r,(p+q+r)>3(pq+qr+rp)

3cosx+4sinx=5 what is x is too difficulat form me to solve? Shw working please

tanA=ntanB sinA=msinB find cos^2A in terms of 'm' and 'n' plz help

The line y=3x+k is a tagent to curve x^2+xy+16=0 find the possible value of k? plz help me i don't no it

(Cosx)^y=x^siny find dy/dx at point pi/(4,0)

Two circular flower beds have a combined area of (29¥)/2m^2. The sum of the circumferences of the flower beds is 10¥m. Determine the radius of each bed........ Happy new year to all mrs sue steve,reiny,damon...and to all my jishka helper i need help plz i...

A hand bag containing some loads weighing 162n is carried by two student, each holding the handle of the bag next to him..if each handle is pulled 60degree to the vertical find the force of each student? Help plz

Dy/dx=x+x^3/y plz show your work

Dy/dx=(X+x^3)/y help show working

Evaluate x in 1/x<x

What is the sum of the digit in 4444^4444

Evaluate in (cuberootof(x+1)/(x-1)).1/(x+1)dx help plz

Integrate:sinxcos(x-1/4.pi)dx

Integrate:cosmxcosnx.dx if m=n i can not solve it i have tried my best but to no avail

Show that if y=tanx/2 dy/dx=1/sinx

The sum of the age of father and son is 99.if the age of the son is added to the inverted age of the father,the sum is 72.if the inverted age of the son is subtracted from the age of the father.the difference is 28...what are there age? plz help i do not...

Integrate: xrootof(2+3.fourth rootof(x^3)/x^6.root(x) plz help i do not no it at all show working!!

find the third term of the binomial expansion (root(x)+1/root(y)^6 plz help i do not no it at all show working!!

find the number of root the equation given below in interval (-pi.pi) (cosx)^7+(sinx)^4=1

If x and y satisfy the equation (x+5)^2+(y-12)^2=14 then find the minimum value (x^2+y^2) plz help show working

Logb(base a)=3/2 log d(base c)=5/7 and a-c=9 then b-d=? Plz help me

Integrate:(K+1/k^2+4k+8)dx

Integrate:( dx/root(x^2-4x)^3 help me show it solution

How many pound of cream containing 12% butterfat must be added to 1800lb.of milk containing 2% butterfat to obtain milk having 3% butterfat? Plz help me

Answers

The following answers were posted by visitors named Collins.

Can someone answer my question plz.Much appreciated!

Eh? I don,t understand ur write up

How did u got 72.8% but i get what your are saying tnx

Tnx reiny........bess yah

What happen steve why??

But steve my math teacher told me to apply somekind newtons law in it don't no how any ideal??

The answer is clearly 1/64......since 1/8^2*1=1/64..........

I don,t tink any option there has the anser because 1/8^2*40 40/8^2 8*5/8^2 (2^3)*5/2^6 2^3-6*5 2^-3*5 5/8........or u can jus inverse it and take to the lowest term

Your a genius tanks reiny

Plz it is 3z not 4z

K(x)=x^2-2x+1 where a=1 b=-2 c=1 but he graph of kx=ax^2+bx+c the co-ordinate x of th vertex is -b/2a then the y co-ordinate is h(-b/2a) xco-ordinate=-b/2a=-2/2(1)=-1 y cordinate=-b/2a=h(-1)=(-1)^2-2( -1)+5=0=6 y-intercept now but y-intercept now is given...

Steve can u please just interpret what you are saying for me please..so that i can continue

Yez i got that steve thanks so much wish to be like you someday

My friend ask me to do it so i jus asked if it were possible but what about 13/11 can it be equal to 2???

What formula do i use steve the question look difficult for me that is why i asked help me plz

Let the shoe be=p and the sock=q 2p+4q=109...first statement 3p+5q=160....second statement .......... (2p+4q=109)3 (3p+5q=160)2 6p+12q=327 6p+10q=320 ................... -2q=-7 q=3.5

I guess that is the heighr of the cliff 350 but what borders me is the angle 300301 can an angle inside a triangle be as bigger as that??

27/1000000/9/1000000 27/10^6/9*10^6 27*10^6/9*10^6 27/9=3

Area=1/2bh area*2=bh b=area*2/h area=30cm^2 h=6cm b=? B=30cm^2*2/6m b=60cm^2/6cm b=10cm

3x+2/7=2 3x+2=14 3x=14-2 3x=12 x=4

X+2y=17.....1 x-y=2......2 subtract 2 from 1 -3y=-15 y=-5 ur turn

X+2y=17.....1 x-y=2......2 subtract 2 from 1 -3y=-15 y=5 ur turn

(1):3(t+1)>2t 3t+3>2t 3>2t-3t t<-3 (2):2p+1/5>-3 2p+1>-3*5 2p+1<-15 2p<-16 p<-8 (3): x^2-3x-10>=10 x^2-3x-20>=0 solve quadraticly

(1):(3-7i)+(-1-2i) -3-7i-1+2i -7i+2i-3 -3-5i....... (2):(4-5i)+(7-3i) 4-5i+7-3i 4+7-5i-3i 11-8i (3): (7-5i)+(6+9i) 7-5i+6+9i 7+6-5i+9i 13+4i (4):3+2i/3-5i nothing to simplify

You mean these 5/5+h-1/5/6 5-(5+h)/5(5+h)/h 5-5+h/25+5h/h h/25+5h/h h/25+5h*1/h 1/5(5+h).....

Use these lenght=tita/360*2(pi)(r) tita=30 pi=22/7 r=5 just plug into the formula and get your lenght

Direct substitution will help you jus plug the unknown variable for x and y into your above equation

(1): no option (2) option B Is accurate (3) option C is accurate (4):option A is accurate these are algebra jus use bodmas for a starting

W+6tw=11-w w+6tw+w=11 w(1+6t+1)=11 w(2+6t)=11 w=11/(2+6t) ----------------- r=9-7jk+4jt^2 r-9=4jt^2-7jk r-9=j(4t^2-7k) j=r-9/(4t^2-7k).......

Typo i think x and y are both eliminated to variable to find substitution or not no variable can be found

Let the lenght of the diagonal be x sin60=3/x

H=300t-5t^2=4500 60t-t^2-900=0 -t^2+60t-900=0 multiply by negative sign t^2-60t+900=0 (t^2-30t)-(30t+900)=0 t(t-30)-30(t-30)=0 (t-30)^2=0 divide tru by (t-30) you get t=30

X+y=9 10x+y-45=10y+x solve it an algebra now

X+y=9 10x+y-45=10y+x x+y=9.......(1) 10x-x+y-10y=45 9x-9y=45 9(x-y)=45 x-y=45 ----- x+y=9 x-y=5 2x=14 x=7 your turn finish it 7+y=9 y=9-7 y=2 the number is 72

I just decide to help you complete it i belive you needed help

A(1,4)=A(1,-4) B(3,-2)=b(3.2) D(4,2)=D(4,-2) jus inverse the sign daz all

Huh?? Two unknown in one equation ?? I belive you want to find y in relation to x 3x+2y=5-y 2y+y=5-3x 3y=5-3x y=5-3x/3

Confusing but screw down a little steve have already given a hint to that question

Tan45.5=63.0/L L=63.0/tan45:5=??

History.goegreph,life s,math lit

If 64-16m=144 -16m=80 m=-5? Can it be negative

Sir am too confuse at what am doing do u have any ideal at all that might help?

God bless your damon and may your knowledge be increased in jesus name

Yes sir...sorry for the typo

Yes that's what i mean sir

Aldo ur english beat me but anything i guess inverted means inverse such that let father=f and son=s let the age of father be=10f+s inverted age now will be=10s+f 99-(10f+s)=age of son inverted age now will be=90-10s)+(9-s)...because there sre still d sam...

Aldo d beat me but anything i guess inverted means inverse such that let father=f and son=s let the age of father be=10f+s inverted age now will be=10s+f 99-(10f+s)=age of son inverted age now will be=90-10s)+(9-s)...because there sre still d same i jus d...

Sorry it 3900 not 390lb

Thanks so much ms sue and sir reed

no it the right answer is 3,2 because we are using the coordinate plane method

I think c but im not sure.

........ Wow 2017-2021

Guy who hates connexus no offense but your spelling is AWFUL 😠 (SORRY!!) BTW Thank you c d a a is correct for whovever goes to Connexus.

1. C 2. D 3. C 4. D 5.C

It is true i got 100%

Translate for Vladimir Putin's comment: My name is Vladimir Putin, I am the President of Russia. I have come to warn you that your country will soon be destroyed by our very advanced nuclear weapons, which we have recently developed. Go tell your stupid l...

uhh are those correct?

I'll submit the answers when I'm done with the test

DAB on dem haters

I just took the quick check 1. B 2. D 3. D 4. D

For me the answers where 1. B 2. D 3.D 4.D 5. D,E Tell me if its the same for you :))

hehe u cheating........so am I

Thanks i was really in the need of the answer and formula

What is a noun phrase