# Posts by collins

Total # Posts: 331

**Math**

a+5d=9375....(1) a+4d=375....(2) find a&d wont be difficult now just subtract 1 from 2 t9=a+8d

*March 11, 2017*

**Math**

yeah "sometimes"

*March 10, 2017*

**math**

use hero's formula sum all the side a+b+c/2=s now evaluate area=?[s(s-a)(s-b)(s-c)] good luck

*February 12, 2017*

**sir steve sir reiny any 1 plz help me maths har**

Question. Find the greatest common divisor d of 159 and 51, and find integers x and y solving the equation 159 x + 51 y = d . Answer. d = 3. The extended Euclidean algorithm gives x = 9 and y = -28. (There are other solutions for x and y; these are not unique.) plz show step ...

*February 10, 2017*

**algebra**

let the digit be abc a+b+c=20 b=1/4(a+c) 100a+10b+c=100b+10c+b+198 now solve for abc and good luck

*February 9, 2017*

**Math**

julio:jonah=22:8=? Divide through by 2 do that your self now

*February 8, 2017*

**Algebra**

forget about that grammer just smile with your solution and learn to use your dictionary although i am not a fan of english But In mathematics, an extraneous solution (or spurious solution) is a solution, such as that to an equation, that emerges from the process of solving ...

*February 8, 2017*

**Algebra**

x/(5x+4)=3 x=3(5x+4) x=15x+12 x-15x=12 -14x=12 -7x=6 x=-6/7 there you go find algebra difficult?

*February 8, 2017*

**Continuity Calculus Help**

may be if you put your parentheses well i might be able to help you,because i dont understand you mathematical write up

*February 8, 2017*

**math**

2+3Log a

*November 23, 2016*

**Precalculus**

m varies directly as the cube of n and inversely as g

*October 13, 2016*

**Physics**

Frictional force = μ mg

*October 5, 2016*

**geometry**

what do u me by exponent 2 is it h=-16t²+60t?

*October 5, 2016*

**Algrebra**

profit=sp-cp

*October 5, 2016*

**Math**

find ur mean let say ur mean is n (n-2)²+(n-24)²till u reach d last no/total

*October 5, 2016*

**maths polynomial need help-see these@sam**

4m⁴-24m³+33m²+9m-9=0 re-write the polynomial equation as: 4m⁴-24m³+36m²-3m²+9m-9=0 because: 36m²-3m²=33m² re-grouping (4m⁴-24m³+36m²)-(3m²-9m)-9 factor out 4 4(m⁴-6m³+9m²)-(3m²-9m)-9...

*October 5, 2016*

**Math**

5-4²+6-2²-1=5-16+6-4-1 =5+6-16-4-1 =11-5-16=-10 not true

*October 5, 2016*

**math**

oooh what wrong with me it tan15=x/2.2m x=2.2m*tan15

*October 5, 2016*

**math-sorry here**

sorry it would be 1/2 of 30degree=15degree so x=2.2m/tan15 total distance =2*x

*October 5, 2016*

**math**

sorry it would be 1/2 of 30degree=15degree so x=2.2m/tan15 total distance =2*x

*October 5, 2016*

**math**

i don't know where the angle meet up so i just pick it from btw d leg here where x is the leg tan30=2.2/x x=2.2m/30

*October 5, 2016*

**maths**

A car is moving along a straight road. The graph below shows how the speed varies with time. "'0 W WCl. (/) time - Which of the following graphs represents the distance covered by the car with time? I 1. t 2. 0> U 0> C o .l9 c '" .l9 ii .!!! "0 ...

*October 5, 2016*

**maths**

A car is moving along a straight road. The graph below shows how the speed varies with time. "'0 W WCl. (/) time - Which of the following graphs represents the distance covered by the car with time? I 1. t 2. 0> U 0> C o .l9 c '" .l9 ii .!!! "0 ...

*October 5, 2016*

**maths**

An ant is crawling along the x-axis such that the graph of its position on the x-axis versus time is a semi-circle (see figure). The total distance covered in the 4 s is x[m] 4 t [sI

*October 5, 2016*

**Science**

let the distance travel by both be a&b a has a distance of d1 like wise b speed=distanc/time d1=2v d2=4v total distance d1+d2=180 2v+4v=180 6v=180 v=30 d1=2*30 d1=60 d2=4*20 d2=120 now start u get u starting not that there meet at same point so now calculate the time they will...

*October 5, 2016*

**Science**

Two boys A and B are at two diametrically opposite points on a circle. At one instant the two start running on the circle; A anticlockwise with constant speed v and B clockwise with constant speed 2v. In 2 minutes, they pass each other for the first time. How much later will ...

*October 5, 2016*

**Math-smooth**

the increasing rate or r^3 is 12 time of increasing rate of r d/dt(r^3)=12dr/dt 3r^2dr/dt=12dr/dt divde through by 3 r^2dr/dt=4dr/dt r^2dr/dt-4dr/dt=0 dr/dt(r^2-4)=0 r^2-4=0 (r-2)(r+2)=0 r=2 or r=-2 that went awesome now just have it in mind that any constant at all we always ...

*October 3, 2016*

**math**

y=kx 32=4k k=8 huh?

*October 3, 2016*

**Fractions**

b=2/5 p=1/5 remaining are wind wood=1-2/5-1/3=4/15 clarinet=1/2(4/5)=2/15 tubas=1/8(b)=1/8(2/5)=1/20 let m be the no of tubas m=240/20 m=??

*October 3, 2016*

**Math**

f=26+b...(1) (b-3)=1/3(f-3) 3b-9=f-3 3b=f-3+9 3b=f+6 3b-6=f 3b-6=26+b 2b=26+6 2b=32 b=16 F=26+16 f=42

*June 5, 2016*

**Math**

sorry it should be 15/t-20/t=8/60

*June 5, 2016*

**Math**

speed=distance/time 20=d/t 20t=d t=d/20 and 15t=d d=15/t so amy finish 15/t-20/t=8/20 find t then you can get their distance

*June 5, 2016*

**College Algebra-suggested solution**

solve each equation? hmmm-well Suggested solution log3^n+log9=log69 log3^n=log69-log9 n=(log69-log9)/log3 find n then round up

*May 25, 2016*

**Algebra**

use y=mx+c now x1=4 and x2=-1 y1=-3 and y2=1 x1=4&y1=-3 sub into equation of the line -3=m*4+c 4m+c=-3...(1) now x2 and y2 1=-m+c -m+c=1...(2) subtract 2 from 1 5m=-3 m=-4/5 when perpendicular it is now 5/4

*May 24, 2016*

**Pre-Algrebra**

i would be very happy to help if you would show me your suggested answer...

*May 24, 2016*

**still the same -algebra**

see [(42(x^2)-4pi(x^2)] 21*2(x^2)=42(x^2) rit? 2*2(x^2)pi=4(x^2)pi rit? [(21*(2x^2)-(2x^2)*2pi)] bring (2x^2) out you get (2x^2)(21-2pi) do you undestand now

*May 24, 2016*

**math**

a+b=76...(1) a-b=38......(2) adding 1 and 2 together you get a+b+a-b=76+38 a+a+b-b=114 2a=114 a=114/2 a=57 plug a into any of the equation e.g 57+b=76 b=76-57 b=19 57-b=38 -b=38-57 -b=-19 b=19 i guess u meant a/b=57/19=3...

*May 21, 2016*

**Pre Algebra??**

what question???

*May 13, 2016*

**Pre- Algebra**

30/100*60=30*60/100=??

*May 11, 2016*

**Math**

you are welcome

*May 11, 2016*

**Math**

i agree with u so now can u solve it

*May 11, 2016*

**Math**

hmmm never mind u gave me a wrong formula A=p(1+r%)^n A=20000(1+5.5/100)^3 A=20000(1+0.055)^3 A=20000*(1.055)^3 now do what i told you recall that i=A-p

*May 11, 2016*

**Math**

what could be the problem plug in those value A=20000(1+5.5/12)^3*12 A=20000(1+0.4583)^36 A=20000*(1.4583)^36 Puch ur calculator for (1.4583)^36 And multiply by 20000 and wuehi we are done!!!

*May 11, 2016*

**mathematics**

draw a vertical line to represent the radio mast,and then a horizontal 53m away from the radio mast.and then also a diagonal line from the angle of elevation to the top of the radio mast then tan63=h/53 find h?

*May 11, 2016*

**Pre-Calc**

log(ab)=loga+logb log3x+log[3(x-2)]=1 log[(3x)(3x-6)]=1 (3x)(3x-6)=10^1 9x^2-18x-10=0 find x and see if you would arrive at that

*April 19, 2016*

**Algebra**

telling you there is a total let the width 10w^2+10w*4=1050 now solve for w

*April 19, 2016*

**Algebra**

telling you there is a total let the width 10w^2+8w*4=1050 now solve for w

*April 19, 2016*

**math**

reciprocal of -1/6 =6 and that of 1/2=2 a=-6 b=2 a+b=x -6+2=x x=-4 y=a*b y=-6*2 y=-12 z=2(a)/b z=2*-6/2 z=-6 now x+y+z=??

*April 19, 2016*

**Math-easy you can do it**

you can do that just 6-17=???

*April 19, 2016*

**Math**

use these formulea a^2=b^2+c^2-(2bcCosA) then to get angle C sinA/a=sinC/a...(1) to get angle B sinB/b=sinC/c....(2) there you go a big hint

*April 19, 2016*

**Physics-huh? where**

Physics-huh? i can,t see any problem to try them if i can..

*April 19, 2016*

**math area-poor reading**

ooh i did not read that poor reading yeah

*April 19, 2016*

**math area**

A=Lw A=4*30 A=120square unit

*April 19, 2016*

**Further maths**

from sir steve work remeber that 6th term is 6th term=a+5d =24+5*8 =64

*April 19, 2016*

**Math-noop**

x/4+2x/20=700...mucg easier now rit? just find x

*April 19, 2016*

**Math-it should have been (1/4*2/5)**

i made a i little error in my previous post here (1/4)x+(1/4*2/5)x=700 solve for x

*April 19, 2016*

**Math**

(1/4)x+(1/4*1/2)x=700

*April 19, 2016*

**Math-sorry dx/dp**

oops dx/dp not dy/dp

*April 19, 2016*

**Math**

if it's derivative take the 'p' as a constant dy/dp=2x-4p

*April 19, 2016*

**Math-?? what? typo!!**

hey what do i do with typo i think

*April 19, 2016*

**typo!!oops**

sorry i made a typo i mean u not m

*April 19, 2016*

**calculus**

if sin^6(x)sin(x)dx...(1) then let m=cos(x) dm/dx=-sin(x) dm=-sin(x)dx input 1 into 2 (1-cos^2(x)^3)sin(x)dx (1-u^2)^3-du -(1-u^2)^3du -[1-3u^2+3u^4-u^6) [-1+3u^2-3u^4+u^7) now just integrate and input your 'm'

*April 19, 2016*

**math**

khalid=k daughter=d first statement k=4d...(1) second statement (k-10)+(d-10)=60. k+d=60+20 k+d=80...(2) plug 1 into 2 and there you go

*April 19, 2016*

**calculus very hard help**

you are welcome read out calculus made easy on schaum's outline these book was recommende to me by my favorite tutor here STEVE...that book is a life saving one if you can not get one locally use amazon..steve favorite statement google is your friend try it out

*April 19, 2016*

**calculus very hard help**

hmmm lets see using demovire theorm z+1/z=2cosx and z^n+1/z^n=2cosnx in our case 2cosx=(z+1/z) pascal triangle (z+1/z)^10 from left to right are 1,10,45,120,210,252,210,120,45,10 and 1 the coeffient now 1st,2nd---last 1st term:z^10 2ndterm:10z^9(1/z)=10z^8 3rdterm:45z^8(1/z)^2...

*April 19, 2016*

**maths surd**

let a=2+sqrt(3) b=2-sqrt(3) but a=((2+sqrt(3)^2) b=[(2-sqrt(3)^2] a^2=(2+sqrt(3))^2 =(2+sqrt(3)(2+sqrt(3)=7+4sqrt(3) b^2=(2-sqrt(2)]^2 =(2-sqrt(3))(2-sqrt(3) =7-4sqrt(3) but (a^3+b^3)=(a+b)(a^2-ab+b^2) a+b=7+4sqrt(3)+7-4sqrt(3) a+b=14 ab=(7-4sqr(3)(7+4sqrt(3) ab=1 a^2=(7+4sqrt...

*April 18, 2016*

**maths**

thats in standard form 4.09726*10^5 and then and i thinks these is the expand notation 400000+9000+700+26

*April 18, 2016*

**Math**

or you mean since a^b.a^a=a^b+a then 5^3.5^1=?

*April 18, 2016*

**Math-do that!!!**

can,t you do normal multiplication? you should be able to do that

*April 18, 2016*

**Math**

just normal indices rule a^b/a^a=a^(b-a) with that hint play around with your question

*April 18, 2016*

**Algebra-no it's not!**

see (x^2+2x+1)/(x^2+1) ((x^2+x)+(x+1)]/(x^2+1) x(x+1)+1(x+1)/(x^2+1) (x+1)^2/(x^2+1)....What i see

*April 4, 2016*

**math-question?**

Uhun what your question!!!!

*March 23, 2016*

**Physics**

wow got to right the question and solution down

*March 23, 2016*

**division and remainder...error ws from my teacher not me**

thats the real question

*March 23, 2016*

**Math**

i think the question was post before and sir steve answered i rember fully well he said such reflection move from (x,y).....(-x,y)

*March 22, 2016*

**math**

5000-600=4400/4=1100gram

*March 22, 2016*

**direct variation...not enough info!!!!!**

not enough info how can i find my constant see y=k(0.3)....see what i mean

*March 22, 2016*

**direct variation**

not enough info how can i find my constant see y=k(0.3)....see what i mean

*March 22, 2016*

**opps!!! math**

yeah your are right thanks

*March 22, 2016*

**math**

wait do you mean to solve foy 3(2^y-1)=2^y+4 6^y-3=2^y+4 apply natural log log6^y-log3=log2^y+log4 log6^y-log2^y=log4+log3 ylog6-ylog2=log4+log3 y(log6-log2)=log4+log3 y=(log4+log3)/(log6-log2)....... not sure how you wanna keep on beaten these you can simplify from there

*March 22, 2016*

**math**

here u go as u=2^y.... plug in 3(u-1)=u+4 3u-3=u+4 3u-u=4+3 2u=7 u=7/2 now to solve for y apply natural log 2^y=7/2 log2^y=log(7/2) ylog2=log7-log2 y=log7-log2/log2=? or even y=log7/log4

*March 22, 2016*

**math? not enough!! i bet**

not enough information!!!! please recheck

*March 22, 2016*

**health part 2**

No right anser is C it recur less

*March 22, 2016*

**Math**

using phythagoras theorm (x+8)^2=x^2+(x+7)^2 x^2+16x+64=x^2+x^2+14x+49 16x+64=x^2+14x+49 x^2+14x-16x+49-64=0 x^2-2x-15=0 (x+3)(x-5)=0 x=5........

*March 22, 2016*

**maths**

a+6d=12.......(1) a+20d=68......(2) solve by elimination a is gone 14d=56 d=4 a+6*4=12 a=12-24 a=-12 68 term=a+67d=? that reminds me the equation i use to solve is nth=a+(n-1)d

*March 22, 2016*

**maths insufficient info!**

formula for average speed=total distance/total time A=[(60+90)km/h]/no time? insufficient information

*March 21, 2016*

**Math**

sweet correct

*March 21, 2016*

**Pre Algebra@summer?**

where is your table?????

*March 21, 2016*

**math**

0,1,2,3,4,5,6,7,8,9 pick out the odd number remeber that possible outcome/total required outcome=odd?/9 here you go

*March 21, 2016*

**Math**

?? what your question

*March 21, 2016*

**pre Algebra**

y=-(3x+8) that should be it

*March 21, 2016*

**Pre Algebra**

E(c)=15c sorry for my typo yes am sure

*March 21, 2016*

**Pre Algebra**

f(-2)=(-2)^2-3(-2)+2 =4+6+2=12.... E(c)=15E .......

*March 21, 2016*

**Trigonometry?**

do you want to simplify? sinacosa(sina/cosa+cosa/sina) sinacosa[(sina)^2+(cosa)^2]/sinacosa (sina)^2+(cosa)^2.........

*March 21, 2016*

**Physics**

sin=7/20 sin^-1=(0.35)=?

*March 21, 2016*

**Maths**

i just did i without solving ob paper it was a typo okay

*March 21, 2016*

**Maths**

y=mx+c...... m=y2-y1/x2-x1 m=4-3/-1-2 m=-1/3 at any point i pick p(2,3) y=mx+c 3=(-1)2/3+c -9=-2/3+c -9+2=3c -9+2/3=c c=-7/3 now y=mx+c.......crack out the equation

*March 21, 2016*

**question !!!**

thanks but,is there any one for algebra advanced world problem and logarithms?

*March 21, 2016*

**question !!!**

sir steve have been looking for that book you said i should buy over the net the whol,night to get,the raw file study them but i could not see can you direct me to,a,link

*March 21, 2016*

**math**

can that really be done because 33(1/3)%=33/3*100=3300/3=? and see if you get a fraction

*March 21, 2016*