Thursday
October 23, 2014

Posts by Bosnian


Total # Posts: 1,743

Math
(3/5)*x-6*x=4 (3/5)*x-6*x=4 3/5=0.6 0.6*x-6*x=4 0.6*x-6*x=4 -5.4*x=4 Divide with -5.4 x=4/(-5.4) 4/(-5.4)=40(-54) x=40/(-54) Factorization of numbers 40 and 54 40=2*2*2*5 54=2*3*3*3 x=40/(-54) x=(2*2*2*5)/(-2*3*3*3) x=(2*2*5)/(-3*3*3) x=20/(-27) x= -0,...
February 7, 2011

math
6*10^9=6*10*10*10*10*10*10*10*10*10
February 7, 2011

math
3*10^6=3*10*10*10*10*10*10=3000000= 3 milions
February 7, 2011

math
2cm of scale=25km Divide wit25 1km=2/25=0,08cm of scale 145*0,08=11.6cm 80*0,08=6.4 cm
February 7, 2011

math
3(x-2)+12(x+8)= 3*x-3*2+12*x+12*8= 3x-6+12x+96= 15x+90 3(x-2)+12(x+8)=15x+90
February 7, 2011

math
1/6=2/12 (9/12)+(1/6)=(9/12)+(2/12)= 11/12 less then 1
February 7, 2011

math
30>-6(5-x) 30> -30+6x 30+30>6x 60>6x Divide with 6 10>x x<10
February 5, 2011

math
In google type: "function graphs online" When you see list buf results click on: rechneronline.de/function-graphs/ When page be open in blue rectacangle type your function and click otion Draw
February 4, 2011

math
In google type: "function graphs online" When you see list buf results click on: rechneronline.de/function-graphs/ When page be open in blue rectacangle type: x+7 in grey rectacangle click: 2*x-5 In Display properties set: Range x-axis -20 to 20 and Range y-axis -20 ...
February 4, 2011

math
In en.wikipedia type: "Half-life" and read text, and retype formulas. So: N(t)=N0*e^(-lambda*t) N(t)=N(17)=3 N0=10 t=17 3=10*e^(-lambda*17) Divide with 10 3/10=e^(-lambda*17) e^(-lambda*17)=3/10 -lambda*17=ln(3/10)Divide with 17 -lamba=ln(0.3)/17 lamda=-ln(0.3)/17 ...
February 3, 2011

math
22-2*[5+3(6-1)]= 22-2*[5+3*5]= 22-2*(5+15)= 22-2*20= 22-40= -18
February 2, 2011

math
100 m = (1/4)*400 m 1 min=60 sec 60*1/4= 15 sec
January 30, 2011

Math(Please check)
f'(x)=7 for all values of x
January 30, 2011

Applied Business Math/Colleg student
(2/3)=(2*4)(3*4)=(8/12) (1/6)=(2*1)/(2*6)=(2/12) 2/3+1/6+11/12= =(8/12)+(2/12)+(11/12) =(21/12) =(12+9)/12 =(12/12)+(9/12) =1+(3*3)/(3*4) = 1 3/4 =(4/4)+(3/4) =7/4
January 29, 2011

Math
The most useful form of straight-line equations is the "slope-intercept" form: y = mx + b m is the slope and "b" gives the y-intercept. 3x-5y=8 -5y=8-3x Divide with -5 y=(-8/5)+(3x/5) y=(3/5)x-8/5 The other format for straight-line equations is called the &...
January 27, 2011

math
In google type: "quadratic equation online" When you see list of result click on: webgraphingcom/quadraticequation_quadraticformula.jsp When this page be open in rectacangle type: x^2-x-2=0 and click option solve it! You will see solutions of this equation Step-by-...
January 27, 2011

Math
5=20/4 (2/3)q+(20/4)=(3/4) (2/3)q=(3/4)-(20/4) (2/3)q= -17/*4 Multiply with 4 (8/3)q= -17 Multiply with 3 8q= -17*3 8q= -51 Divide with 8 q= -51/8
January 27, 2011

math/science
48km=48000m 3/48000=1/16000 h 1h=3600 sec (1/16000)*3600=3600/16000= 0.225 sec
January 27, 2011

math
The common distance of the points of a circle from its centre is called its radius. Diametar=2*Radius go to en.wikipedia and type circle in search field.
January 25, 2011

math
1 hour=60 min=4*15 min half hour=30min=2*15 min 4+2=6 6*1=6 miles
January 25, 2011

math
1 foot=12 in (1 foot)^2 =(12 in)^2 1square foot = 144square inchs
January 25, 2011

math
(3/2 )/(4/5)=(3*5)/(2*4)=15/8 (1/2)*(1/2)=1/4=2/8 (15/8)+(2/8)=17/8=(16+1)/8=(16/8)+(1/8)= 2 1/8
January 25, 2011

Math
Subtract 8 of each numbers 64-8=56 56-8=48 48-8=40 40-8=32 Pattern: 64,56,48,40,32
January 25, 2011

math
2*10+2*100+0.4=20+200+0.4=220.4
January 25, 2011

Math Algebra
2m+3n=4 2m+3*2=4 2m+6=4 2m=4-6 2m= -2 Divide with 2 m= -1 n=2 m= -1 2m +3n=4 Check of results: 2m+3n=4 2*( -1)+3*2=-2+6=4 -m+2n=5 -( -1)+2*2=1+4=5
January 25, 2011

Math
The most useful form of straight-line equations is the "slope-intercept" form: y = mx + b m is the slope and "b" gives the y-intercept. The other format for straight-line equations is called the "point-slope" form. For this one, they give you a ...
January 24, 2011

Math (Calculus AB)
The slope of tangent line is first derivation of function. slope=dy/dx If you don't know how to find Derivation in Google type: "calc101" When you see list of results click on: calc101com When page be open click option: derivatives In rectacangle type: x*cos[x] (...
January 24, 2011

math
5/7=(8*5)/(8*7)=40/56 6/8=(7*6)/(7*8)=42/56 30/56 < 40/56 30/56 < 42/56
January 22, 2011

Math
On: rechneronline.de/function-graphs/ In Dispay properties type follow values: Range x-axis from -6.28 to 6.28 Range y-axis from -5.5 to 1.5
January 22, 2011

Math
I suppose that 90 in your first equation is 90° 90°=(pi/2) radians y+3= 2sin(3x +90°) y=2sin(3x +90°)-3 y=2sin(3x +90°)-3 Angle in degres y= 2sin(3x +pi/2)-3 Angle in radians In google type: "function graphs on line" When you see list of results ...
January 22, 2011

Math
3/6=1/2 7sqrt(3/6)=7sqrt(1/2)=7/sqrt(2)
January 22, 2011

Math
8/9=20/x 8x=20*9 8x=180 Divide with 8 x=180/8 x=(2*2*45)/(2*2*2)=45/2=22.5
January 22, 2011

math
sin(A)=cos(90°-A) cos(33°)=sin(90°-33°)=sin(57°)
January 21, 2011

math
In google type: "quadratic equation online" When you see list of result click on: webgraphingcom/quadraticequation_quadraticformula.jsp When this page be open in rectacangle type equation: 3a^2+6a-189=0 and click option solve it! You will see solutions of this ...
January 20, 2011

math
Fist number= a Second number= a+1 Third number= a+2 a^2+(a+1)^2+(a+2)^2=194 (a+1)^2=a^2+2*a*1+1^2=a^2+2a+1 (a+2)^2=a^2*2a*2+2^2=a^2+4a+4 a^2+a^2+2a+1+a^2+4a+4=194 3a^2+6a+1+4=194 3a^2+6a+5-194=0 3a^2+6a-189=0 The exactsolutions of this equation are: a=7 and a=-9 Solution: ...
January 20, 2011

math
0<x<15cm x= larger of 0 and lesser of 15cm
January 20, 2011

Math/Trig
L=r*aplha alpha in radians L=7.7 alpha=pi/7 7.7=r*(pi/7) divide with (pi/7) r=7.7/(pi/7) r=(7.7*7)/pi r=53.9/3.1415926535 r=17,1569cm r=17.2cm
January 20, 2011

math
7/7=1
January 20, 2011

math help please!!
log(x-2)= 1-log(x+1) log(x-2)+log(x+1)=1 log(a)+log(b)=log(a*b) log(x-2)+log(x+1)=log((x-2)*(x-1)) 1=log(10) log((x-2)*(x-1))=log(10) So: (x-2)*(x+1)=10 x^2-2x+x-2=10 x^2-x-2=10 x^2-x-2-10=0 x^2-x-12=0 Exact solutions of this equation is: -3 and 4 Negative numbers have not ...
January 20, 2011

math log
Third row have typefeler Correct formula is: log(a+b)=log(a)+log(b)
January 20, 2011

math log
7.2=36/5 36=6*6 log(a+b=log(a)+log(b) log(36)=log(6)+log(6)=2*log(6) log(a/b)=log(a)-log(b) log(36/5)=2*log(6)-log(5) log(6)=m log(5)=n log(36/5)=log(7.2)=2m-n
January 20, 2011

college math 209
In google type "quadratic equation online" when you see list of results click on: webgraphingcom/quadraticequation_quadraticformula.jsp Whenn this page be open in rectacangle type your equation,and click option solve it and you will see solution Step-by-step
January 16, 2011

college math 209
In google type "quadratic equation online" when you see list of results click on: webgraphingcom/quadraticequation_quadraticformula.jsp When this page be open in rectacangle type your equation,and click option solve it You will see solution Step-by-step
January 16, 2011

Math/Trigonometry
1 revolution=2*pi radians 1.6*2*3.1415926535=10,0530964912 radians nearest tenth=10 radians
January 14, 2011

Math/Trig
Area of circle: A=r^2*pi Area of your sector=r^2*pi*(125/360)=3^2*pi*125/360=9*pi*125/360 =9*3.1415926535*125/360 =3534,2917351875/360 =9,8174770421875 m^2
January 14, 2011

math
In google type "functions graphs online" When you see list of results click on: rechneronline.de/function-graphs/ When page be open type your fuction and click option Draw
January 14, 2011

11th grade math
Go to: en wikipedia org And type:Absolute value You will see everything about Asolute Value including graph.
January 13, 2011

math
In google type "composite numbers " When you see list of results click on en.wikipedia and you can find everything about composite numbers
January 12, 2011

math
1+4+s= 5+s
January 12, 2011

math
-3(3x+15)-(10+x)=35 -9x-3*15-10-x=35 -9x-45-10-x=35 -10x-55=35 -10x=35+55 -10x=90 x=90/(-10) x=-9
January 12, 2011

math
Standard notation is just the number like 248 or 822 or.... and so on, or it is a number completely written out without any shortcuts.
January 12, 2011

integrated math
y=210-6b
January 10, 2011

math
In mathematics, an irrational number is any real number which cannot be expressed as a fraction a/b 30=2*3*5 sqroot(30)=sqroot(2)*sqroot(3)*sqroot(5) sqroot(2), sqroot(3) and sqroot(5) is irrational numbers. sqroot(30) is irrational too. The real numbers are the numbers that ...
January 10, 2011

Math
2*log(x)-log(4)-log(3)+log(x)=2logx+logx-log4-log3 =3*log(x)-[log(4)+log(3)] log(x^n)=n*log(x) 3*log(x)=log(x^3) log(a)+log(b)=log(a*b) log(4)+log(3)=log(4*3)=log(12) log(a)-log(b)=log(a/b) 3*log(x)-[log(4)+log(3)]=log[(x^3)/12]
January 10, 2011

math
|60| = 60 |-60| = 60 60-60=0
January 10, 2011

math
You also can write fraction: 3.9/1.2=x/500 1.2*x=3.9*500 1.2*x=1950 Divide with 1.2 x=1950/1.2 x=1625
January 8, 2011

math
copper/nickel=3.9/1.2=3.25 500*3.25=1625 kg of copper
January 8, 2011

Math
7/20=(7*5)/(20*5)=35/100=0.35
January 7, 2011

math
1meter=100 centimeters=10^2 centimeters 1m=10^2cm 1m^3=(10^2)^3=10^6 cm^3=1000000 cm^3 1kilometer=1000meters=10^3 meters 1km^2=(10^3)^2=10^6 cm^2=1000000 cm^2
January 6, 2011

math
1meter=100cm=10^2cm 1m^3=(10^2)^3=10^6 cm^3=1000000 cm^3
January 6, 2011

math
1 liter= 1cubic decimeter 1dm= 10cm 1dm=10^2cm 1L=1dm^3=(10^2)^3=10^6 cm^3=1000000 cm^3 2L=2*10^6 cm^3=2000000 cm^3 One litre of water has a mass of one kilogram. Two litre of water has a mass of 2 kilograms.
January 6, 2011

Math (algebra)
(y-1)/2u+x=m (y-1)/2u=m-x y-1=2u*(m-x) Divide with (m-x) 2u=(y-1)/(m-x) Divide with 2 u=(y-1)/[2*(m-x)]
January 6, 2011

Math 3
11*13=143 6/11=(6*13)/143=78/143 2/13=(2*11)/143=22/143 6/11+2/13=(78/143)+(22/143)=100/143
January 6, 2011

math
8.7
January 2, 2011

8th grade math
3x+3y=-6 3y=-6-3x Divide with 3 y=-2-x 7x+4y=1 7x+4*(-2-x)=1 7x-8-4x=1 3x-8=1 3x=1+8 3x=9 Divide with 3 x=9/3 x=3 y=-2-x y=-2-3 y=-5 x=3 y=-5 Cheking of results: 3x+3y=3*3+3*(-5)=9-15=-6 7x+4y=7*3+4*(-5)=21-20=1
December 21, 2010

math
x+5y=-4 y=3x-4 x+5*(3x-4)=-4 x+15x-20=-4 16x=-4+20 16x=16 Divide wth 16 x=1 y=3x-4 y=3*1-4 y=3-4=-1 x=1 y=-1 Cheking of result: y=3x-4 -1=3*1-4 -1=3-4 -1=-1 x+5y=-4 1+5*(-1)=-4 1-5=-4 -4=-4
December 21, 2010

art
Go to images.google com and type scgraffito any you can see some examples.
December 21, 2010

Math Problem Solving
6n+(8n-2n)+3/2=6n+8n-2n+3/2 6n+8n-2n=14n-2n=12n 6n+8n-2n+3/2=12n+(3/2)
December 21, 2010

math
A=(1/2)*a*h A=255 - Area h=15 - hight a - lenght of base 255=(1/2)*a*15 Multiply with 2 510=15*a Divide with 15 a=510/15=34 a=34ft Checking of results: A=(1/2)*a*h A=(1/2)*34*15 A=(1/2)*510 A=255ft squared
December 21, 2010

math
x+9-6=7 x+3=7 x=7-3 x=4
December 21, 2010

MAth
If your solution x=315 you solve it correctly.
December 18, 2010

Math
A secant line of a curve is a line that (locally) intersects two points on the curve. You must know equation of curve f(x) if you want to find secant line.
December 18, 2010

math
liter is unit of volume not of force
December 18, 2010

math
1cm=(1/100)m 1m=100cm 100m=100*100=10000cm
December 17, 2010

MATH
-7+2=-5 |-5|=5 |-4|=4 5-4=1
December 15, 2010

Math
In google type: "quadratic equation online " When you see results clik on webgraphingcom/quadraticequation_quadraticformula.jsp type you equation and click solve it and you will see solution step by step.
December 15, 2010

Aims math [help please very appreciated]
15x-2x=21-4 13x=17 Divide wit 13 x=17/13
December 15, 2010

5th math
(1/4)*(2/2)=2/8 (1/4)=(2/8) (1/4)+(1/8)= (2/8)+(1/8) =3/8
December 15, 2010

math
2x^2 -12x +23=2*(x^2-6x+23/2) (x-a)^2= x^2-2ax+a^2 (x-3)^2= x^2-2*3*x+3^2= x^2-6x+3^2 2*(x^2-6x+23/2)= =2*(x^2-2*3*x +3^2+ 23/2 -3^2) =2(x^2-6x+3^2)+2*(23/2)-2*(3^2) =2*(x-3)^2+23-2*9 =2*(x-3)^2+23-18 =2*(x-3)^2 +5 Proof: 2*(x-3)^2+5=2*(x^2-2*3*x+3^2)+5 =2*(x^2-6x+9)+5 =2x^2-...
December 10, 2010

math
sqroot(5*1215)=sqroot(6075)=77.9423
December 9, 2010

Math
2/3=0.66666666 7/11=0.6363636 Larger is 0.67
December 6, 2010

Math
a=first number b=second number a+b=44 b=5+2a a+b=a+5+2a =3a+5= 44 3a+5=44 3a=44-5 3a=39 Divided with 3 3a/3=39/3 a=13 b=5+2a b=5+2*13 b=5+26 b=31 a+b=13+31=44
December 6, 2010

math
(ã2y*ã8y*ã3=ã(2*8*y^2)*ã3=ã(16*y^2)*ã3 =-4y*ã3 OR =4y*ã3 Becouse ã16= -4 OR 4 and ãy^2=y
December 5, 2010

Math
x^2+5x-3x-15=9 x^2+2x=9+15 x^2+2x=24 x^2+2x+1=24+1 (x+1)^2=25 Becouse: (x+1)^2=x^2+2x+1 x+1=sqroot(25) x+1=5 and x+1=-5 x+1=5 x=5-1=4 x+1=-5 x=-5-1=-6 Solutions is: x=4 and x=-6
December 4, 2010

Math
a=shorter leg b=longer leg c=hypotenuse a=b-14 c^2=a^2+b^2 26^2=(b-14)^2+b^2 676=b^2-2*b*14+14^2+b^2 676=2b^2-28b+196 676-196=2(b^2-14b) 480=2(b^2-14b) Divide with 2 240=b^2-14b b^2-14b=240 b^2-14b+7^2=240+7^2 Becouse: (b-7)^2=b^2-14b+7^2 (b-7)^2=240+49 (b-7)^2=289 b-7=sqroot(...
December 4, 2010

math
3x^2+11x+5=15 3x^2+11x+5-15=0 3x^2+11x-10=0 ax^2+bx+c=0 a=3 , b=11 , c=-10 In google type "square equation online" and select some site.
December 1, 2010

Math
71%=71/100=0.71 510*0.71=362.1 million square kilometers
November 30, 2010

math
Area=a*b A=a*b=12 Area=12 12=a*b Divide with b 12/b=a a=12/b Perimeter=2*a+2*b P=25 25=2*(12/b)+2*b 25=(24/b)+2*b Mulitiple with b 25b=24+2*b^2 Solutions of this equation is: b=[sqroot(433)]/4+(25/4) =5.202163 +6.25=11.452163 a=12/b=(12/11.452163)=1.047837 a=1.047837 b=11....
November 29, 2010

math
The angles of a parallelogram satisfy the identities: A=C B=D A+B=180° A+B+C+D=360°. C=A=(2x+25) D=B=(3x-5) A+B=180° 2x+25+3x-5=180° 5x+20°=180° 5x=180°-20° 5x=160° x=160°/5 x=32° A=C=(2x+25°)=2*32°+25°=64°+25°=89...
November 25, 2010

math
33=3*11 65=5*13 33/65=(3*11)/(5*13)
November 23, 2010

Math
18=2*3*3 24=2*2*2*3 18/24=(2*3*3)/(2*2*2*3)=3/(2*2)=3/4 9=3*3 12=2*2*3 9/12=(3*3)/(2*2*3)=3/(2*2)=3/4 15=3*5 20=2*2*5 15/20=(3*5)/(2*2*5)=3/(2*2)=3/4 6=2*3 9=3*3 6/9=(2*3)/(3*3)=2/3
November 21, 2010

math
C=d*pi= 200*pi= 200*3.14= 628 meters
November 21, 2010

Algebra
-y=4-3x Multiply with(-1) y=3x+4 (Slope=3) Remember, any two perpendicular lines are negative reciprocals of each other. So if you're given the slope of 3, you can find the perpendicular slope by this formula: mp=(-1)/m where: m-slope of line y=3x+4 mp is the perpendicular...
November 21, 2010

Math
F-lenght of first size S-lenght of second size T-lenght of third size S=F+3 T=(4/5)*F F+S+T=F+F+3+(4/5)F=384 2F+3+(4/5)F=384 2F+(4/5)F=384-3 2F+(4/5)F=381 Multiply with 5 10F+4F=381*5 14F=1905 Divide with 14 F=1905/14 S=F+3=(1905/14)+(42/14) Becouse (42/14)=3 S=1947/14 T=(4/5...
November 21, 2010

6th grade Math
11-7=4 4/11 not red
November 20, 2010

Math
s=v^1/3=third root(v) s=third root(729)=9
November 20, 2010

Math
a1=34-9*d Becouse nth member in arithmetic progression is: an=a1+(n-1)*d a10=a1+(10-1)*d a10=a1+9*d a10-9*d=a1 a a1=a10-9*d a1=34-9*d an=a1+(n-1)*d a25=a1+(25-1)*d a25=a1+24*d a25=7+24*3 a25=7+72=79
November 19, 2010

Math
The sum of members of a arithmetic progression is: Sn=(n/2)*[2a1+(n-1)*d] a1-first number in arithmetic progression d-common difference of successive members n-numbers of members In this case: n=20 , (n/2)=10 , n-1=19 a1=a10-9*d a1=34-9*d Sn=(n/2)*[2a1+(n-1)*d] =10*[2*(34-9*d...
November 19, 2010

Algebra
z-5-7(z-3)+3(5z+1)=z-5-7z+21+15z+3 =9z+19
November 19, 2010

math
50/20=2.5lb
November 19, 2010

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