Saturday

February 6, 2016
Total # Posts: 181

**Confused bat!!! English**

Thanks so much ms sue and sir reed
*January 18, 2016*

**Confused bat!!! English**

My english teacher told me that there is a difference between NO and IDON'T NO he said that we should exaplain with refrences am confuse but they are the same
*January 18, 2016*

**Help!!! Maths number base**

If 321 base 4 is divided by 23 base 4 and leaves a remainder 'R' what is the value of 'R' ?
*January 15, 2016*

**mechanics**

please help solve these questions (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re...
*January 9, 2016*

**mechanics**

please help solve these questions (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re...
*January 9, 2016*

**mechanics**

please help solve these questions (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re...
*January 8, 2016*

**physics**

(1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re), where Re is the radius of the ...
*January 8, 2016*

**physics**

(2). Determine the velocity which a body released at a distance r from the center of the earth when it strikes the earth surface.
*January 8, 2016*

**Word problem**

Sorry it 3900 not 390lb
*January 6, 2016*

**Word problem**

earth and cement block filling a box weighs 390mlb.the block weigh 2.4times as much as water and earth weighs 1.5times as much as water.water filling the box weighs 2000lb.find the weigh of the cement block.bl? plz help help help!!!! Show work
*January 6, 2016*

**Minimum and maximum value**

Let f(x) be a decreasing the function defined for x>or=0 and f(2a^2+a+1)<or= f(3a^2-4a+1) then find the minimum and maximum value of a plz help help help!!!show ur work
*January 6, 2016*

**Trigonomentery Maths to difficult help me**

Given that cosZ=L where z is an acute angle.find and expression of (cotz-cosecz)/(secz+tanz)? plz help help help!!!! Show work
*January 6, 2016*

**Gratitude for my helper**

Sir steve mrs reiny sir bobpursely sir damon ms sue..... Thank you very much you guyz have really help me alot today my result came out and i score 98 out of 100 in my maths exams aldo i am still shaking in my english but with the help of ms sue i always read english question ...
*January 6, 2016*

**Chemistry:normal notation plz help**

Using the normal notation of quantum number find the element which has the following value of quantum number n=3 l=2 m=2 s=+1/2 (a):potassuim (b):nitrogen (c):sodium (d):scandium
*January 6, 2016*

**Word problem help plz**

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
*January 5, 2016*

**Another Calculus help plz **

Integrate:( dx/root(x^2-4x)^3 help me show it solution
*January 5, 2016*

**Calculus help plz **

Integrate:(K+1/k^2+4k+8)dx
*January 5, 2016*

**Log maths help me plz**

Logb(base a)=3/2 log d(base c)=5/7 and a-c=9 then b-d=? Plz help me
*January 5, 2016*

**Equation help plz**

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
*January 5, 2016*

**Trigonomentry help plz thanks**

find the number of root the equation given below in interval (-pi.pi) (cosx)^7+(sinx)^4=1
*January 4, 2016*

**Bionomial expansion help agn #thanks**

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!!
*January 4, 2016*

**Calculus help plz i do not no it at all**

Yes thats what i mean sir
*January 4, 2016*

**Calculus help plz i do not no it at all**

Integrate: xrootof(2+3.fourth rootof(x^3)/x^6.root(x) plz help i do not no it at all show working!!
*January 4, 2016*

**Word problem help plz**

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 do dat to help we my ...
*January 4, 2016*

**Word problem help plz**

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 same i jus do dat to help...
*January 4, 2016*

**Word problem help plz **

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 no it at all show ...
*January 4, 2016*

**Another Calculus help plz**

Show that if y=tanx/2 dy/dx=1/sinx
*January 4, 2016*

**Calculus help plz**

Integrate:cosmxcosnx.dx if m=n i can not solve it i have tried my best but to no avail
*January 4, 2016*

**Calculus pz help urgently**

Integrate:sinxcos(x-1/4.pi)dx
*January 3, 2016*

**Calculus help plz**

Evaluate in (cuberootof(x+1)/(x-1)).1/(x+1)dx help plz
*January 2, 2016*

**Maths sum of digit help!!!**

What is the sum of the digit in 4444^4444
*January 2, 2016*

**Maths help equation**

Evaluate x in 1/x<x
*January 2, 2016*

**mechanics**

please help solve these questions (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re...
*January 1, 2016*

**Reposting calculus help plz**

Dy/dx=(X+x^3)/y help show working
*January 1, 2016*

**Calculus need help**

Yes sir...sorry for the typo
*January 1, 2016*

**Calculus need help**

Dy/dx=x+x^3/y plz show your work
*January 1, 2016*

**Maths/physics need help agn**

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
*January 1, 2016*

**Maths/physics**

A catapult used to hold a stone of mass 500g is extended by 20cm with applied force .f if the stone leaves with a velocity of 40m/s,what is the value of f? Help plz
*January 1, 2016*

**Maths need help trigonomentery**

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 need it ...
*December 31, 2015*

**Calculus i need help**

(Cosx)^y=x^siny find dy/dx at point pi/(4,0)
*December 20, 2015*

**Maths tangent help me damon or steve 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
*December 20, 2015*

**Trigonomentry plz help**

tanA=ntanB sinA=msinB find cos^2A in terms of 'm' and 'n' plz help
*December 19, 2015*

**Maths trigonomentry**

3cosx+4sinx=5 what is x is too difficulat form me to solve? Shw working please
*December 18, 2015*

**Thanks so much damon!**

God bless your damon and may your knowledge be increased in jesus name
*December 18, 2015*

**Maths deduce!damon or steve plz help any one**

Sir am too confuse at what am doing do u have any ideal at all that might help?
*December 18, 2015*

**Maths deduce!damon or steve plz help any one**

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)
*December 18, 2015*

**Sir damon i think u maid a typo!**

If 64-16m=144 -16m=80 m=-5? Can it be negative
*December 18, 2015*

**Maths plz help!**

Yes the root
*December 18, 2015*

**Maths plz help!**

4x^2+8x-m=0,differs by 3 find the value of the constant m plz help me??
*December 18, 2015*

**Maths plz help**

X^x+y^y=31 x+y=5 plz help i was told to use newton litrate method plz help
*December 18, 2015*

**Chemistry help**

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 motion half way along it ...
*December 18, 2015*

**Function plz help!!!**

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
*December 12, 2015*

**AP Physics**

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?
*December 4, 2015*

**Maths:simultaneous equation**

Plz help me solve for x and y x^3+y^3=1 x^4+y^4=1 help???
*November 30, 2015*

**Parametric derivatie help plz**

Find the eqation 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
*October 28, 2015*

**Calculus plz help integral **

Find the integral of §x^1/2.e^xdx at upper limit of 1/2 and lower limit of zero..show work plz
*October 26, 2015*

**Calculus help**

Solve using implicit derivative cuberoot(x)+cuberoot(xy)=4y^2
*October 26, 2015*

**Simultaneous equation i nee help find x,y**

X^-y=158 y^2-x=108 find x and y?? Show work
*October 22, 2015*

**Calculus i need help plz plz**

Integrate:Sinxcosx/a^2cos^2(x)+b^2sin^2(x))dx??? plz i need the full working too hard for me
*October 21, 2015*

**Trigonometery help plz**

Show that cos^2(theta)+tan(theta)cosec(theta)=cos??? Show work
*October 21, 2015*

**Calculus...need help**

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
*October 20, 2015*

**Steve look i have corrrected it help plz it urgent anyone plz**

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....what is our present...
*October 19, 2015*

**Algebra word problem.....so difficult **

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 year will be equal to ...
*October 19, 2015*

**Proving trigonometery**

Show that Sin(A/2)=root(1/2(1-cosA)??
*October 19, 2015*

**Area of a triangle plz help**

|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
*October 19, 2015*

**Geometry i need hlp urgently plz plz plz **

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
*October 18, 2015*

**Calculus i need help plz plz**

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
*October 18, 2015*

**Algebra help plz**

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.
*October 18, 2015*

**math**

Tan45.5=63.0/L L=63.0/tan45:5=??
*October 17, 2015*

**Calculus also need help plz plz plz**

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??
*October 17, 2015*

**Calculus badly need help so difficult**

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
*October 17, 2015*

**Hey reiny how am i going to go with these**

Integrate x^xdx it is to difficult if wolfram can help any link or something
*October 16, 2015*

**Algebra 2**

Confusing but screw down a little steve have already given a hint to that question
*October 16, 2015*

**Algebra!!huh?**

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
*October 15, 2015*

**Integral so difficult i need help**

Integrate x^xdx?? help so the solution it to difficult for me
*October 15, 2015*

**Maths:distance covered urgently need help**

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 he from his starting ...
*October 15, 2015*

**Algebra hw, coordinates!! 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
*October 15, 2015*

**maths**

I just decide to help you complete it i belive you needed help
*October 15, 2015*

**maths**

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
*October 15, 2015*

**maths**

X+y=9 10x+y-45=10y+x solve it an algebra now
*October 15, 2015*

**Maths**

Correct good
*October 15, 2015*

**MATHS**

Let the lenght of the diagonal be x sin60=3/x
*October 15, 2015*

**Area of a triangle**

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
*October 15, 2015*

**MATHS**

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).......
*October 15, 2015*

**Math!typo **

Typo i think x and y are both eliminated to variable to find substitution or not no variable can be found
*October 14, 2015*

**Algebra**

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
*October 14, 2015*

**Infinity series i need help also**

To what value does the sum of 20+12+36/5+.............tends to infinity??
*October 14, 2015*

**Area of a triangle i need help urgently**

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...
*October 14, 2015*

**MATH**

(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
*October 14, 2015*

**MATH**

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).....
*October 14, 2015*

**college algeb**

(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
*October 14, 2015*

**Math**

(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
*October 14, 2015*

**glgmnhs**

Use these lenght=tita/360*2(pi)(r) tita=30 pi=22/7 r=5 just plug into the formula and get your lenght
*October 14, 2015*

**Maths;function i need help**

(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 produnction 40unit???
*October 14, 2015*

**Math**

Direct substitution will help you jus plug the unknown variable for x and y into your above equation
*October 14, 2015*

**Defective probability i need help**

If 3% of electric bulb produced by a company are defective find the probability that in a sample 100bulbs (a) 0 (b)1 (c)2 (d)3 bulbs are defective??
*October 13, 2015*

**Algebra 2**

3x+2/7=2 3x+2=14 3x=14-2 3x=12 x=4
*October 13, 2015*

**Algebra 2**

X+2y=17.....1 x-y=2......2 subtract 2 from 1 -3y=-15 y=5 ur turn
*October 13, 2015*

**Algebra 2**

X+2y=17.....1 x-y=2......2 subtract 2 from 1 -3y=-15 y=-5 ur turn
*October 13, 2015*

**Revolution and frequency i need help physics**

A spring makes 60 revolution in 15mins calculate the period and the frequency of the revolution??
*October 13, 2015*