Questions and answers by

Collins

Questions (127)

Given that U=(all the letters of the alphabet), X=(a,e,i,o,u), Y=(e,b,c,d,f,h). find (a). (X U Y)', (B) X' n Y' (C) X' n Y (D)
1. 0 answers
2. 120 views
The 3rd, 4th, and 5th terms of a geometric progression are t+1, t+8 and t+18 respectively.determine common difference, first
1. 1 answer
2. 444 views
Using square table to work out. 2561
1. 2 answers
2. 239 views
A closed tin of milk has diameter 10cm and height 16cm. Find the total surface area of the tin . (Take pi to be 22/7). Pls show
1. 1 answer
2. 334 views
The charge for telephone calls T is partly constant and partly varies with the number N of units of call. The bill for 420 units
1. 1 answer
2. 387 views
Select the boxes in the table to indicate whether these statements are true about life in Ancient Sparta, Ancient Athens, or
1. 0 answers
2. 678 views
CauseEffect use of bronze? Use the table to answer the question. Which of the following statements completes the cause and
1. 3 answers
2. 1,289 views
A man spends 3/4 of his salary on food , rent, transport and 1/10 of the remainder on clothes . What percentage of his salary is
1. 2 answers
2. 889 views
Express each ratio as a fraction in it's lowest terms. 3600s:2hours
1. 8 answers
2. 1,780 views
express each ratio as a fraction in it's lowest terms 18hours:2days
1. 4 answers
2. 822 views
Find the total amount he receive in year in which he sell goods worth $9376000 and travel 10,000km?Pls help
1. 3 answers
2. 465 views
Solve for following applying spherical trigonometry... 1.Papua New Guinea (37° 45'N, 122°27'W)(since course was 260°)
1. 1 answer
2. 609 views
What is expanded academic ASAP and what does it do
1. 1 answer
2. 813 views
asolid metal cube of side 10cm is melted down and recast as solid metal sphere.calculate the radius of the sphere.Take Pie=3.142
1. 3 answers
2. 1,922 views
2+3Log a
1. 0 answers
2. 411 views
m varies directly as the cube of n and inversely as g
1. 1 answer
2. 3,869 views
A car is moving along a straight road. The graph below shows how the speedvaries with time. "'0 W WCl. (/) time - Which of the
1. 1 answer
2. 1,287 views
A car is moving along a straight road. The graph below shows how the speedvaries with time. "'0 W WCl. (/) time - Which of the
1. 1 answer
2. 1,752 views
An ant is crawling along the x-axis such that the graph of its position on the x-axisversus time is a semi-circle (see figure).
1. 1 answer
2. 979 views
Two boys A and B are at two diametrically opposite points on a circle. At oneinstant the two start running on the circle; A
1. 2 answers
2. 2,557 views
My english teacher told me that there is a difference betweenNO and IDON'T NO he said that we should exaplain with refrences am
1. 7 answers
2. 563 views
If 321 base 4 is divided by 23 base 4 and leaves a remainder 'R' what is the value of 'R' ?
1. 3 answers
2. 2,063 views
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
1. 3 answers
2. 650 views
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
1. 1 answer
2. 547 views
Given thatcosZ=L where z is an acute angle.find and expression of (cotz-cosecz)/(secz+tanz)? plz help help help!!!! Show work
1. 1 answer
2. 454 views
Sir steve mrs reiny sir bobpursely sir damon ms sue.....Thank you very much you guyz have really help me alot today my result
1. 2 answers
2. 906 views
Using the normal notation of quantum number find the element which has the following value of quantum numbern=3 l=2 m=2 s=+1/2
1. 1 answer
2. 464 views
How many pound of cream containing 12% butterfat must be added to 1800lb.of milk containing 2% butterfat to obtain milk having
1. 1 answer
2. 863 views
Integrate:( dx/root(x^2-4x)^3help me show it solution
1. 0 answers
2. 415 views
Integrate:(K+1/k^2+4k+8)dx
1. 0 answers
2. 389 views
Logb(base a)=3/2log d(base c)=5/7 and a-c=9 then b-d=? Plz help me
1. 1 answer
2. 541 views
If x and y satisfy the equation (x+5)^2+(y-12)^2=14then find the minimum value (x^2+y^2) plz help show working
1. 1 answer
2. 522 views
find the number of root the equation given below in interval (-pi.pi)(cosx)^7+(sinx)^4=1
1. 2 answers
2. 435 views
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!!
1. 1 answer
2. 502 views
Integrate: xrootof(2+3.fourth rootof(x^3)/x^6.root(x)plz help i do not no it at all show working!!
1. 3 answers
2. 468 views
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
1. 5 answers
2. 3,353 views
Show that if y=tanx/2dy/dx=1/sinx
1. 1 answer
2. 381 views
Integrate:cosmxcosnx.dx if m=ni can not solve it i have tried my best but to no avail
1. 1 answer
2. 342 views
Integrate:sinxcos(x-1/4.pi)dx
1. 5 answers
2. 420 views
Evaluate in(cuberootof(x+1)/(x-1)).1/(x+1)dx help plz
1. 3 answers
2. 383 views
What is the sum of the digit in4444^4444
1. 3 answers
2. 877 views
Evaluate x in1/x<x
1. 1 answer
2. 373 views
Dy/dx=(X+x^3)/yhelp show working
1. 4 answers
2. 401 views
Dy/dx=x+x^3/yplz show your work
1. 2 answers
2. 410 views
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
1. 3 answers
2. 3,459 views
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
1. 3 answers
2. 1,167 views
Two circular flower beds have a combined area of (29¥)/2m^2. The sum of the circumferences of the flower beds is 10¥m.
1. 1 answer
2. 945 views
(Cosx)^y=x^siny find dy/dx at point pi/(4,0)
1. 2 answers
2. 503 views
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
1. 1 answer
2. 3,210 views
tanA=ntanBsinA=msinB find cos^2A in terms of 'm' and 'n' plz help
1. 1 answer
2. 663 views
3cosx+4sinx=5what is x is too difficulat form me to solve? Shw working please
1. 6 answers
2. 2,644 views
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)
1. 4 answers
2. 441 views
4x^2+8x-m=0,differs by 3 find the value of the constant mplz help me??
1. 4 answers
2. 477 views
X^x+y^y=31x+y=5 plz help i was told to use newton litrate method plz help
1. 1 answer
2. 404 views
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
1. 1 answer
2. 733 views
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
1. 1 answer
2. 1,396 views
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
1. 1 answer
2. 715 views
Plz help me solve for x and yx^3+y^3=1 x^4+y^4=1 help???
1. 1 answer
2. 396 views
Find the equation of the line tangent to the parametric curve define byx=cos2t and y=sin3t and t=pi/12 plz i don't no where to
1. 1 answer
2. 640 views
Find the integral of §x^1/2.e^xdxat upper limit of 1/2 and lower limit of zero..show work plz
1. 1 answer
2. 564 views
Solve using implicit derivativecuberoot(x)+cuberoot(xy)=4y^2
1. 1 answer
2. 499 views
X^-y=158y^2-x=108 find x and y?? Show work
1. 1 answer
2. 424 views
Integrate:Sinxcosx/a^2cos^2(x)+b^2sin^2(x))dx???plz i need the full working too hard for me
1. 1 answer
2. 943 views
Show that cos^2(theta)+tan(theta)cosec(theta)=cos???Show work
1. 1 answer
2. 638 views
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
1. 1 answer
2. 498 views
Last year kemi who happens to be my sister was 2wice as old as my lovely brillant primary school friend femi,last three years
1. 2 answers
2. 872 views
Last three year kemi who happens to be my sister was 2wice as old as my lovely brillant primary school friend femi,last three
1. 1 answer
2. 773 views
Show thatSin(A/2)=root(1/2(1-cosA)??
1. 1 answer
2. 683 views
|BM|,|CN| are altitude of a triangle ABC if AB=3.5 AC=3.2 BN=2.1calculate the area of the triangle and hence find
1. 1 answer
2. 811 views
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
1. 4 answers
2. 575 views
If y=ws^3/d^4find the % increase in 'y' when 'w' increases by 2% and 's' decreases by 3% and 'd' increasee by 1%...... There a
1. 2 answers
2. 1,127 views
If € , ß are the roots of the equation2x^2 + 4x - 3 = 0 and €^2 , ß^2 are the roots of the equation x^2 + px + q = 0, find
1. 1 answer
2. 555 views
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
1. 1 answer
2. 485 views
If y=ws^3/d^4find the percent increase in y when w increase by 2% s decrease by 3% and s decrease by 1% plz show the full
1. 1 answer
2. 557 views
Integrate x^xdxit is to difficult if wolfram can help any link or something
1. 1 answer
2. 426 views
Integrate x^xdx??help so the solution it to difficult for me
1. 1 answer
2. 492 views
A car travelling at 60km/hr started a journey travelling in an oppsite direction to his destination.After travelling for 35min
1. 2 answers
2. 976 views
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=Ksh
1. 1 answer
2. 753 views
To what value does the sum of 20+12+36/5+.............tends to infinity??
1. 3 answers
2. 659 views
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
1. 0 answers
2. 455 views
(1):Given the cost function c(x)=10+2xand the revenue functio r(x)=3x,find break even quantity and the price (2):if the marginal
1. 0 answers
2. 727 views
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
1. 4 answers
2. 1,750 views
A spring makes 60 revolution in 15mins calculate the period and the frequency of the revolution??
1. 2 answers
2. 526 views
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
1. 0 answers
2. 573 views
You ar given that root(59.3) = 7.70and root(5.93) = 2.44. Find root(59300)???
1. 1 answer
2. 408 views
If (x+1/x)^2=3then x^72+x^66+x^54+x^36+x^6+1=?? Plz help so confuse
1. 1 answer
2. 386 views
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
1. 1 answer
2. 648 views
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??
1. 4 answers
2. 490 views
(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
1. 2 answers
2. 667 views
Find dy/dx if x^2.y+sin(xy)+y^4.x^2+3xy=5???
1. 1 answer
2. 419 views
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
1. 1 answer
2. 637 views
X/y=zprove that 13/12=2???
1. 4 answers
2. 408 views
Prove that (1-sinb)/(1+sin2b)=tan^2(45-b) plz the b means beta???
1. 2 answers
2. 645 views
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
1. 0 answers
2. 608 views
|x-3|=|3-x| find x???
1. 2 answers
2. 404 views
1997^913 when it is divided by 10 what is the remainder???
1. 1 answer
2. 404 views
X^2-1=2^x?????
1. 1 answer
2. 326 views
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 ??????
1. 1 answer
2. 518 views
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)
1. 5 answers
2. 1,004 views
A fighter plane is flying horizontally at a constant speed of 600km/hr and the pilot observes an oil drolling platform in the
1. 1 answer
2. 869 views