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. 98 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. 407 views
Using square table to work out. 2561
1. 2 answers
2. 217 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. 299 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. 335 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. 629 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. 1,230 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. 829 views
Express each ratio as a fraction in it's lowest terms. 3600s:2hours
1. 8 answers
2. 1,732 views
express each ratio as a fraction in it's lowest terms 18hours:2days
1. 4 answers
2. 761 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. 428 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. 560 views
What is expanded academic ASAP and what does it do
1. 1 answer
2. 755 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. 1,860 views
2+3Log a
1. 0 answers
2. 383 views
m varies directly as the cube of n and inversely as g
1. 1 answer
2. 3,818 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. 1,216 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. 1,651 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. 913 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. 2,493 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. 506 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. 1,998 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. 584 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. 505 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. 409 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. 848 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. 411 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. 808 views
Integrate:( dx/root(x^2-4x)^3help me show it solution
1. 0 answers
2. 378 views
Integrate:(K+1/k^2+4k+8)dx
1. 0 answers
2. 353 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. 481 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. 465 views
find the number of root the equation given below in interval (-pi.pi)(cosx)^7+(sinx)^4=1
1. 2 answers
2. 393 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. 453 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. 437 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. 3,290 views
Show that if y=tanx/2dy/dx=1/sinx
1. 1 answer
2. 346 views
Integrate:cosmxcosnx.dx if m=ni can not solve it i have tried my best but to no avail
1. 1 answer
2. 312 views
Integrate:sinxcos(x-1/4.pi)dx
1. 5 answers
2. 380 views
Evaluate in(cuberootof(x+1)/(x-1)).1/(x+1)dx help plz
1. 3 answers
2. 343 views
What is the sum of the digit in4444^4444
1. 3 answers
2. 817 views
Evaluate x in1/x<x
1. 1 answer
2. 332 views
Dy/dx=(X+x^3)/yhelp show working
1. 4 answers
2. 359 views
Dy/dx=x+x^3/yplz show your work
1. 2 answers
2. 369 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. 3,409 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. 1,106 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. 887 views
(Cosx)^y=x^siny find dy/dx at point pi/(4,0)
1. 2 answers
2. 452 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. 3,167 views
tanA=ntanBsinA=msinB find cos^2A in terms of 'm' and 'n' plz help
1. 1 answer
2. 621 views
3cosx+4sinx=5what is x is too difficulat form me to solve? Shw working please
1. 6 answers
2. 2,580 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. 408 views
4x^2+8x-m=0,differs by 3 find the value of the constant mplz help me??
1. 4 answers
2. 453 views
X^x+y^y=31x+y=5 plz help i was told to use newton litrate method plz help
1. 1 answer
2. 364 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. 676 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. 1,337 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. 668 views
Plz help me solve for x and yx^3+y^3=1 x^4+y^4=1 help???
1. 1 answer
2. 359 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. 586 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. 513 views
Solve using implicit derivativecuberoot(x)+cuberoot(xy)=4y^2
1. 1 answer
2. 458 views
X^-y=158y^2-x=108 find x and y?? Show work
1. 1 answer
2. 390 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. 874 views
Show that cos^2(theta)+tan(theta)cosec(theta)=cos???Show work
1. 1 answer
2. 603 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. 463 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. 808 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. 713 views
Show thatSin(A/2)=root(1/2(1-cosA)??
1. 1 answer
2. 657 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. 779 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. 509 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. 1,082 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. 512 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. 445 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. 501 views
Integrate x^xdxit is to difficult if wolfram can help any link or something
1. 1 answer
2. 382 views
Integrate x^xdx??help so the solution it to difficult for me
1. 1 answer
2. 456 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. 914 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. 715 views
To what value does the sum of 20+12+36/5+.............tends to infinity??
1. 3 answers
2. 616 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. 418 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. 658 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. 1,699 views
A spring makes 60 revolution in 15mins calculate the period and the frequency of the revolution??
1. 2 answers
2. 487 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. 528 views
You ar given that root(59.3) = 7.70and root(5.93) = 2.44. Find root(59300)???
1. 1 answer
2. 377 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. 353 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. 601 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. 421 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. 626 views
Find dy/dx if x^2.y+sin(xy)+y^4.x^2+3xy=5???
1. 1 answer
2. 384 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. 596 views
X/y=zprove that 13/12=2???
1. 4 answers
2. 386 views
Prove that (1-sinb)/(1+sin2b)=tan^2(45-b) plz the b means beta???
1. 2 answers
2. 593 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. 552 views
|x-3|=|3-x| find x???
1. 2 answers
2. 378 views
1997^913 when it is divided by 10 what is the remainder???
1. 1 answer
2. 375 views
X^2-1=2^x?????
1. 1 answer
2. 296 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. 434 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. 940 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. 796 views