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December 17, 2014

Posts by Bosnian


Total # Posts: 1,774

Integrated Math 1
- 3 x ^ 2 + 10 x - 6 = - 3 x ^ 2 - 17 x + 2 Add 3 x ^ 2 + 17 x - 2 to both sides. - 3 x ^ 2 + 3 x ^ 2 + 10 x + 17 x - 6 - 2 = - 3 x ^ 2 + 3 x ^ 2 - 17 x + 17 x + 2 - 2 27 x - 8 = 0 Add 8 to both sides. 27 x - 8 + 8 = 0 + 8 27 x = 8 Divide both sides by 27 x = 8 / 27 when x = 8...
July 8, 2012

MAth
A = 4 pi r ^ 2 A = 28.26 28.26 = 4 pi r ^ 2 28.26 / ( 4 pi ) = r ^ 2 r ^ 2 = 28.26 / ( 4 * 3.14 ) r ^ 2 = 28.26 / 12.56 = 2.25 r = sqrt ( 2.25 ) = 1.5 in Question 2 A = 4 pi r ^ 2 A = 4 * pi * 3.5 ^ 2 A = 4 * 3.14 * 12.25 A = 153.86 in ^ 2 Question 3 V = 4 * pi * r ^ 3 / 3 V...
July 8, 2012

algebra
If your expression mean: 5 * 5 - 35 + 21 - ( - 3 ) * ( - 3 ) * ( - 3 ) then: ( - 3 ) * ( - 3 ) = 9 ( - 3 ) * ( - 3 ) * ( - 3 ) = ( - 3 ) * 9 = - 27 - ( - 3 ) * ( - 3 ) * ( - 3 ) = - ( - 27 ) = 27 5 * 5 - 35 + 21 - ( - 3 ) * ( - 3 ) * ( - 3 ) = 25 - 35 + 21 + 27 = 38
July 7, 2012

math
1 hour = 60 min 1 day = 24 hours = 24 * 60 = 1440 min 1 hour 18 min = 78 min D = Day N = Night D = N + 78 D + N = 1440 min N + 78 + N = 1440 2 N + 78 = 1440 2 N = 1440 - 78 = 1362 N = 1362 / 2 = 681 min D = N + 78 = 681 + 78 = 759 min 12 * 60 = 720 759 - 720 = 39 759 min = 12 ...
July 5, 2012

Math
2 1/2 =2.5 W = 30 ft L = 2.5 * W = 2.5 * 30 = 75 ft
July 4, 2012

Math
10 / ( 1 / 5 ) = 50 50 ft / s 50 * 20 = 1,000 ft
June 28, 2012

Maths - Ant Colony
Interpolation polynomial for first set : ( x ^ 5 - 100 x ^ 4 + 4375 x ^ 3 - 65000 x ^ 2 + 827500 x + 2250000 ) / 37500 Interpolation polynomial for second set : 8 x + 400 ( x ^ 5 - 100 x ^ 4 + 4375 x ^ 3 - 65000 x ^ 2 + 827500 x + 2250000 ) / 37500 = 8 x + 400 Real solution : ...
June 25, 2012

Math
To find relative maxima and minima, first find the critical points (where f´ ( x ) is 0 or doesn´t exist). Then examine each critical point. It is a relative maximum if f´ changes from positive to negative or f" is negative. It is a relative minimum if f...
June 24, 2012

Math
To find relative maxima and minima, first find the critical points (where fŒ is 0 or doesnft exist). Then examine each critical point. It is a relative maximum if fŒ changes from positive to negative or f is negative. It is a relative ...
June 24, 2012

arithmetic
No an = 41 ( n ^ 2 + 157 n + 9442 ) / ( 39680 - 320 n )
June 24, 2012

math
2 x - 3 y = 5 2 * 3 - 3 y = 5 6 - 3 y = 5 Add - 6 to both sides 6 - 6 - 3 y = 5 - 6 - 3 y = - 1 Divide both sides by - 3 y = - 1 / - 3 y = 1 / 3
June 18, 2012

math
3 y = 9 - 2 x Divide both sides by 3 y = 9 / 3 - 2 x / 3 y = 3 - 2 x / 3 y = - ( 2 / 3 ) x + 3
June 18, 2012

math
0.68 * 8 = 5.44 0.68 in = 5 / 8 in to the nearest eight of an inch
June 18, 2012

geometry
Volume of the first cube V1 = h ^ 3 Volume of the second cube V2 = ( 5 h ) ^ 3 = 125 h ^ 3 V1 / V2 = h ^ 3 / ( 125 h ^ 3 ) = 1 / 125
June 18, 2012

Algebra
( 2 x ^ 2 - 5 x + 13 ) - 27 go on: calc101 dot com When page be open in first rectangle tape : 2x^3 - x^2 + 3x -1 In second rectangle type : x + 2 and click option : DO IT
June 17, 2012

math
a n = n ^ 3 1 ^ 3 = 1 2 ^ 3 = 8 3 ^ 3 = 27 4 ^ 3 = 64 5 ^ 3 = 125 6 ^ 3 = 216
June 17, 2012

Alegbra
Go on : wolframalpha dot com If your exspression mean : (4/x)-2-(7/x^2)-4 then in rectangle type : solve (4/x)-2-(7/x^2)-4 and click option = If your exspression mean : 4/(x-2)-7/(x^2-4)=1 then in rectangle type : solve 4/(x-2)-7/(x^2-4)=1 and click option = After few secounds...
June 14, 2012

Algebra II (Exponents)
x ^ - 6 = 1 / x^ 6 third root of ( - 8 ) = - 2 ( -8 x ^ - 6 y ^ 15 ) ^ ( 1 /3 ) = third root of ( - 8 y ^ 15 / x ^ 6 ) = third root of ( - 8 ) * third root of ( x ^ 15 ) / third root of ( x ^ 6 ) = - 2 y ^ 5 / x ^ 2
June 11, 2012

Algebra II (Exponents)
( -1728 ) ^ ( 1 / 3 ) = third root of ( - 1728 ) = third root of ( - 1 ) * third root of ( 1728 ) = - 1 * 12 = - 12
June 11, 2012

precalculus/trigonometry
For x = - 2 y = ( - 2 ) ^ 2 = 4 ( x1 = - 2 , y1 = 4 ) For x = 4 y = 4 ^ 2 = 16 ( x2 = 4 , y2 = 16 ) The line through two distinct points (x1, y1) and (x2, y2) is given by y = y1 + [ ( y2 - y1 ) / ( x2 - x1 ) ] * ( x - x1 ) In your case : x1 = - 2 y1 = 4 x2 = 4 y2 = 16 y = y1...
June 10, 2012

Intermediate Algebra
A = Area L = Length W = Width A = 4 x ^ 2 + 19 x + 12 L = 4 x + 3 A = L * W W = A / L W = ( 4 x ^ 2 + 19 x + 12 ) / ( 4 x + 3 ) W = x + 4 P.S If you don't know how to divide that two exspression go on: calc101 dot com When page be open in first rectangle tape : 4 x ^ 2 + ...
June 8, 2012

calculus (check my work please)
Try to simplify your "different answers". Probably your "different answers" is same solutions write in different form.
June 7, 2012

calculus (check my work please)
In google type: wolfram alpha When you see lis of results click on: Wolfram Alpha:Computational Knowledge Engine When page be open in rectangle type: integrate sec^3(x)tan^3(x) dx and click option = After few secons you will see result. Then click option Show steps
June 7, 2012

Math
7 / ( x - 4 ) = 2 Multiply both sides by ( x - 4 ) 7 = 2 * ( x - 4 ) 7 = 2 x - 8 Add 8 to both sides 7 + 8 = 2 x - 8 + 8 15 = 2 x Divide both sides by 2 15 / 2 = x x = 15 / 2 = 7.5
June 6, 2012

math
4 * 1,500 + 2 * 120 * 12 = 6,000 + 2,880 = 8,880 $
June 5, 2012

math
39 * 71 - 30 * 50 = 2769 - 1500 = 1269 yd ^ 2
June 4, 2012

math
A. Product : 1 * 1 = 1 Sum : 1 + 1 = 2 B. Product : 0 * 2 = 0 Sum : 0 + 2 = 2 C. Product : 1 * 0 = 0 Sum : 1 + 0 = 1 D. Product : 2 * 2 = 4 Sum : 2 + 2 = 4 ANSWER D.
June 2, 2012

GEOMETRY
Type your question in google. You will find solution.
June 2, 2012

math
x1 + x2 + x3 = 86 + 92 + 94 = 272 ( x1 + x2 + x3 + x4 ) / 4 = 90 ( 272 + x4 ) / 4 = 90 Multiply both sides by 4 272 + x4 = 90 * 4 272 + x4 = 360 x4 = 360 - 272 = 88
June 2, 2012

Math
L = length of board piece a = length of first piece b = length of second ( shorter ) piece a = 2 b - 3 L = 18 = a + b = 2 b - 3 + b = 3 b - 3 3 b - 3 = 18 Add 3 to both sides 3 b - 3 + 3 = 18 + 3 3 b = 21 Divide both sides by 3 3 b / 3 = 21 / 3 b = 7 ft a = 2 b - 3 a = 2 * 7...
June 1, 2012

Math
The standard equation of a circle with center C ( h , k ) and radius r is as follows: ( x - h )^ 2 + ( y - k )^ 2 = r ^ 2 In your case r = sqrt( 25 ) = + OR - 5 Length can't be negative so r = 5
May 31, 2012

math
3 pi / 2 = 270 ° sin ( 3 pi / 2 ) = sin 270 ° = - 1 cos ( 3 pi / 2 ) = cos 270 ° = 0 cos ( A - B ) = cos A cos B + sin A sin B In this case : cos ( x - 3 pi / 2 ) = cos ( x ) * cos ( 3 pi / 2 ) + sin ( x ) * sin ( 3 pi / 2 ) = cos ( x ) * 0 + sin ( x ) * ( - 1 ) = ...
May 29, 2012

math
( x 1 + x 2 + x 3 + x 4 + x 5 ) / 5 = 89 Multiply both sides by 5 x 1 + x 2 + x 3 + x 4 + x 5 = 89 * 5 = 445 ( x 1 + x 2 + x 3 + x 4 + x 5 + x 6 ) / 6 = 90 ( 445 + x 6 ) / 6 = 90 Multiply both sides by 6 445 + x 6 = 6 * 90 = 540 x 6 = 540 - 445 = 95
May 29, 2012

pre algebra check
( 156 / 130 ) * 100 % = 1.2 * 100 % = 120 %
May 29, 2012

pre algebra
10.5 % = 10.5 / 100 = 0.105 0.105 * 250 = 26.25
May 29, 2012

pre algebra
100 % - 20 % = 80 % 80 % = 80 / 100 = 0.8 14 $ / 0.8 = 17.5 $
May 29, 2012

calculus
If (x+7)dx/x^2+14x+55 mean ( x + 7 ) dx / ( x ^ 2 + 14 x + 55 ) then substitute : u = x ^ 2 + 14 x + 5 d u = ( 2 x + 14 ) dx = 2 ( x + 7 ) d x Divide both sides by 2 du / 2 = ( x + 7 ) d x ( x + 7 ) d x = d u / 2 integral of [ ( x + 7 ) dx / ( x ^ 2 + 14 x + 55 ) ] = integral ...
May 29, 2012

6th grade math
V = Volume A = Area of trangle V = A * h A = s ^ 2 * sqrt ( 3 ) / 4 where s = length of equilateral triangle sides A = 6 ^ 2 * sqrt ( 3 ) / 4 A = 36 * sqrt ( 3 ) / 4 A = 4 * 9 * sqrt ( 3 ) / 4 A = 9 * sqrt ( 3 ) A = 9 * 1.73025 A = 15.58845 mm ^ 2 V = A * h V = 15.58845 * 8 .4...
May 28, 2012

Algebra
Another way : x + 8 / x = - 9 Multiply both sides by x x ^ 2 + 8 = - 9 x Add 9 x to both sides x ^ 2 + 8 + 9 x = - 9 x + 9 x x ^ 2 + 9 x + 8 = 0 In google type: quadratic equation online When you see list of results click on: Free Online Quadratic Equation Solver:Solve by ...
May 28, 2012

Math
x ^ 2 + y ^ 2 - 6 x - 8 y + 25 = 36 Equation of a circle in standard form : ( x - h ) ^ 2 + ( y - k ) ^ 2 = r ^ 2 x ^ 2 + y ^ 2 - 6 x - 8 y + 25 = 36 x ^ 2 - 6 x + y ^ 2 - 8 y + 25 = 36 ( x ^ 2 - 6 x ) + ( y ^ 2 - 8 y ) + 25 = 36 The process involves completing the square ...
May 27, 2012

Algebra II
The General Equation for a Conic Sections: A x ^ 2 + B x y + C y ^ 2 + D x + E y + F = 0 In this case: x ^ 2 - 4 y ^ 2 - 4 x - 8 y = 36 Subtract 36 to both sides x ^ 2 - 4 y ^ 2 - 4 x - 8 y - 36 = 0 1 * x ^ 2 + 0 * B x y - 4 * y ^ 2 - 4 * x - 8 * y - 36 = 0 A = 1 B = 0 C = - 4...
May 27, 2012

Algebra
w = width l = length A = Area l = w + 8 A = l * w A = ( w + 8 ) * w = 48 w ^ 2 + 8 w = 48 Subtract 48 to both sides w ^ 2 + 8 w - 48 = 48 - 48 w ^ 2 + 8 w - 48 = 0 The exact solutions are : w = 4 and w = - 12 Width can't be negative so : w = 4 cm l = w + 8 l = 4 + 8 = 12 ...
May 26, 2012

Algebra
( 2 x - 1 ) ^ 2 = 25 Take the square root of both sidea 2 x - 1 = + OR - 5 Add 1 to both sides 2 x - 1 + 1 = + OR - 5 + 1 2 x = + OR - 5 + 1 Divide both sides by 2 x = ( + OR - 5 + 1 ) / 2 x 1 = ( 5 + 1 ) / 2 = 6 / 2 = 3 x 2 = ( - 5 + 1 ) / 2 = - 4 / 2 = - 2
May 26, 2012

Algebra II
7 - 2 = 5 ( 7 − 2 ) ÷ 5 = 5 / 5 = 1
May 25, 2012

Math
Equations of a straight line : y = m x + b Where : m = slope b = the y intercept ( where the line crosses the y axis ) Parallel lines have the same slope. In this case m = 1 / 3 y = ( 1 / 3 ) x + b x = - 9 y = 5 5 = ( 1 / 3 ) ( - 9 ) + b 5 = - 3 + b Add 3 to both sides 5 + 3...
May 25, 2012

math
3 * 10 1 / 2 = 3 * 21 / 2 = 63 / 2 = 62 / 2 + 1 / 2 = 31 1 / 2
May 24, 2012

Algebra; Help immediately.
Sorry my tipfeler. Answer is A h = 160 t - 16 t ^ 2 400 = 160 t - 16 t ^ 2 160 t - 16 t ^ 2 = 400
May 24, 2012

Algebra; Help immediately.
h = height t = time h = 160 t - 16 t ^ 2 400 = 160 t - 16 t ^ 23 160 t - 16 t ^ 23 = 400
May 24, 2012

Integral Calculus
In google type: wolfram alpha When you see list of results click on: Wolfram Alpha:Computational Knowledge Engine When page be open in rectangle type: integrate x*arctan(x)dx and click option = After few secons you will see result. Then click option : Show steps
May 24, 2012

Calculus
a = first number b = second number a * b = 48 Divide both sides by a b = 48 / a S = the sum of one of the numbers and the cube of the other number S = a + b ^ 3 S = a + ( 48 / a ) ^ 3 S = a + 110,592 / a ^ 3 S = a + 110,592 * a ^ - 3 First derivaton : d S / d a = 1 - 3 * 110,...
May 24, 2012

Alg 2
Hyperbola Equation of hyperbola : ( x - h ) ^ 2 / a ^ 2 - ( y - k ) ^ 2 / b ^ 2 = 1 In this case : ( x + 3 ) ^ 2 / 16 - ( y - 5 ) ^ 2/ 64 = 1 [ x - ( - 3 ) ] ^ 2 / 4 ^ 2 - ( y - 5 ) ^ 2 / 8 ^ 2 = 1 h = - 3 k = 5 a = 4 b = 8
May 24, 2012

algebra
- 3 ( 5 x + 6 ) = 57 - 3 * 5 x - 3 * 6 = 57 - 15 x - 18 = 57 Add 18 to both sides - 15 x - 18 + 18 = 57 + 18 - 15 x = 75 Sivide both sides by - 15 x = 75 / - 15 x = 5 * 15 / - 15 x = - 5
May 21, 2012

arithmetic
Sorry correction. 100 * 100 * 100 = 1,000,000 1 m = 100 cm 1 m ^ 3 = 100 * 100 * 100 = 1,000,000 cm ^ 3 1.5 m ^ 3 = 1,500,000 cm ^ 3 1,500,000 candies
May 21, 2012

arithmetic
1 m = 100 cm 1 m ^ 3 = 100,000 cm ^ 3 1.5 m ^ 3 = 150,000 cm ^ 3 150,000 candies
May 21, 2012

math 8
W = Width L = Length W = 5 + L / 2 37 = 5 + L / 2 Subtract 5 to both sides 37 - 5 = 5 + L / 2 - 5 32 = L / 2 Multiply hoth sides by 2 64 = L L = 64 in
May 21, 2012

flvs
In google type : Petrified wood
May 21, 2012

algebra
( 16 x - 4 y ) - ( 10 x + 5 y ) = 16 x - 4 y - 10 x - 5 y = 6 x - 9 y
May 21, 2012

Math
d ( e ^ x ) / dx = e ^ x d ( log x ) / dx = 1 / x d y / dx = e ^ x + 3 * 1 / x d y / dx = e ^ x + 3 / x
May 21, 2012

Math help please
You must give angle between plank and wall or angle between plank and ground.
May 21, 2012

Calculus I
In google type: wolfram alpha When you see lis of results click on: Wolfram Alpha:Computational Knowledge Engine When page be open in rectangle type: derivartive ln((1+e^x)/(1-e^x)) and click option = After few secons you will see result. Then clic option Show steps
May 21, 2012

Calculus
In google type: wolfram alpha When you see lis of results click on: Wolfram Alpha:Computational Knowledge Engine When page be open in rectangle type: derivative (5x^2+9x-7)^5 and click option = After few secons you will see result. Then clic option Show steps Then type : ...
May 21, 2012

math
A = r ^ 2 * pi = 25 in ^ 2 r ^ 2 * pi = 25 Divide both sides by pi r ^ 2 = 25 / pi Take the square root of both sides r = + OR - sqrt ( 25 ) / sqrt ( pi ) r = + OR - 5 / sqrt ( pi ) Radius can't be negative so : r = 5 / sqrt ( pi ) r = 5 / sqrt ( 3.1416 ) r = 5 / 1.772456 ...
May 20, 2012

Algebra
Remark : ( a - b ) ^ 2 = a ^ 2 - 2 * a * b + b ^ 2
May 20, 2012

Algebra
sqrt ( x ) + 3 = sqrt ( x + 12 ) Subtract 3 from both sides: sqrt ( x ) + 3 - 3 = sqrt ( x + 12 ) - 3 sqrt ( x ) = sqrt ( x + 12 ) - 3 Square both sides : [ sqrt ( x ) ] ^ 2 = [ sqrt ( x + 12 ) ] ^ 2 - 2 * sqrt ( x + 12 ) * 3 + 3 ^ 2 x = x + 12 - 6 sqrt ( x + 12 ) + 9 x = x - ...
May 20, 2012

Math
Most useful form of straight-line equations is the "slope-intercept" form: y = m x + b This is called the slope-intercept form because "m" is the slope and "b" gives the y - intercept y - intercept = value of y when x = 0 In this case : y = x + 2 ...
May 20, 2012

calculus
x = first number y = second number x + y = 100 y = 100 - x P = x * y P = x * ( 100 - x ) P = 100 x - x ^ 2
May 20, 2012

calculus
x = width y = length P = Perimeter A = Area Perimeter = 2 * width + 2 * length P = 2 x + 2 y P = 2 * ( x + y ) 2 * ( x + y ) = 10 Divibe both sides by 2 x + y = 5 y = 5 - x Area = width * length A = x * y A = x * ( 5 - x ) A = 5 x - x ^ 2
May 20, 2012

MATH
n * log ( a ) = log ( a ^ n ) log ( a ) + log ( b ) = log ( a * b ) log ( a ) - log ( b ) = log ( a / b ) 2 log ( 3 ) = log ( 3 ^ 2 ) = log ( 9 ) 2 log ( 2 ) = log ( 2 ^ 2 ) = log ( 4 ) 2 log ( 3 ) - log ( 5 ) + 2 log ( 2 ) = log ( 3 ^ 2 * 2 ^ 2 / 5 ) = log ( 9 * 4 / 5 ) = log...
May 20, 2012

math
csc ^ 2 ( x ) - csc ( x ) + 9 = 11 Subtract 11 to both sides csc ^ 2 ( x ) - csc ( x ) + 9 - 11 = 11 - 11 csc ^ 2 ( x ) - csc ( x ) - 2 = 0 Substitute : csc ( x ) = u u ^ 2 - u - 2 = 0 The exact solutions are : u = - 1 and u = 2 u = csc ( x ) so : csc ( x ) = - 1 and csc ( x...
May 19, 2012

algebra 2
- 10
May 17, 2012

math
13 / 8 = ( 8 + 5 ) / 8 = 8 / 8 + 5 / 8 = 1 5 / 8 = 1.625
May 17, 2012

trig
Yes
May 17, 2012

trig
Corection: sin ( x ) = 1 / 2 sin ( x ) = - 1
May 17, 2012

trig
cos ^ 2 ( x ) = 1 - sin ^ 2 ( x ) 2 cos ^ 2 ( x ) - sin ( x ) = 1 2 * [ 1 - sin ^ 2 ( x ) ] - sin ( x ) = 1 2 - 2 sin ^ 2 ( x ) - sin ( x ) = 1 Subtract 1 to both sides 2 - 2 sin ^ 2 ( x ) - sin ( x ) - 1 = 1 - 1 - 2 sin ^ 2 ( x ) - sin ( x ) + 1 = 0 Substitute : sin ( x ) = u...
May 17, 2012

math
If your expression mean : 6 cos ^ 2 ( x ) + cos ( x ) = 1 then 6 cos ^ 2 ( x ) + cos ( x ) = 1 Subtract 1 to both sides 6 cos ^ 2 ( x ) + cos ( x ) - 1 = 1 - 1 6 cos ^ 2 ( x ) + cos ( x ) - 1 = 0 Substitute : cos ( x ) = u 6 u ^ 2 + u - 1 = 0 The exact solution are : u = - 1...
May 17, 2012

Algebra 1a
1750 / 0.06 = 29,166.6666 29,167 $
May 16, 2012

Algebra
- 4 ( t + 7 ) - ( t + 6 ) = 10 - 4 * t - 4 * 7 - t -+ 6 = 10 - 4 t - 28 - t - 6 = 10 - 5 t - 34 = 10 Add 34 to both sides - 5 t - 34 + 34 = 10 + 34 - 5 t = 44 divide both sides by - 5 t = - 44 / 5 = - 8.8 - 4 ( t + 7 ) - ( t + 6 ) = 10 - 4 ( - 8.8 + 7 ) - ( - 8.8 + 6 ) = 10 - ...
May 16, 2012

algebra
y ^ 7 / z ^3 = y ^ 4 * y ^ 3 / z ^ 3 = y ^ 4 * ( y / z ) ^ 3
May 14, 2012

math
Type this question in google. When you see list of results go on : a n s w e r s . y a h o o . com › ... › Physics
May 13, 2012

math
4.1 % = 4.1 / 100 = 0.041 104.1 % = 1 + 0.041 = 1.041 32.4 / 1.041 = 31.123 milion
May 13, 2012

math
In google type: quadratic equation online When you see list of results click on: Free Online Quadratic Equation Solver:Solve by Quadratic Formula When page be open in rectangle type: x^2+x+3=0 and click option: solve it You will see solution step-by step
May 13, 2012

math
4 x - y = 7 Add y to both sides 4 x - y + y = 7 + y 4 x = y + 7 Subtract 7 to both sides 4 x - 7 = y + 7 - 7 4 x - 7 = y y = 4 x - 7 5 x + y = 20 5 x + 4 x - 7 = 20 9 x - 7 = 20 Add 7 to both sides 9 x - 7 + 7 = 20 + 7 9 x = 27 Divide both sides by 9 9 x / 9 = 27 / 9 x = 3 y...
May 13, 2012

geometry
( 4 / 3 ) * 12 = 48 / 3 = 16
May 13, 2012

geometry
If the similarity ratio of two similar triangles is a : b, then the ratio of their areas is : a ^ 2 / b ^ 2 So : a ^ 2 / b ^ 2 = 36 / 25 a / b = sqrt ( 36 ) / sqrt ( 25 ) = 6 / 5
May 13, 2012

Math
1 ) The domain of a function is the set of all possible input values , which allows the function formula to work. The denominator of any fraction cannot have the value zero. I this case : x + 3 must be different of zero x different of - 3 Domain: ( - infinity , - 3 ) U ( - 3...
May 13, 2012

math
Use calculator on your computer start -> Programs -> Accessories -> Calculator When you open Calculator click View then Sceintific 10 ^ 1.27 = 18.620871366628674486717789978037
May 12, 2012

functions
1 h = 3600 s 4.3 pi * 3600 = 15480 pi rad / h 1 rotation = 2 pi radians 15480 pi / 2 pi = 7740 rotations / h
May 12, 2012

math
Circumference of a circle C = 2 r pi the arc length L = 2 r pi * theta / 360 ° = r * pi * theta / 180° 10 = r pi * 80 / 180 Multiply both sides by 180 10 * 180 = r * pi * 80 1800 = r * pi * 80 Divide both sides by 80 pi 1800 / 80 pi = r r = 1800 / 80 pi r = 40 * 45...
May 12, 2012

math
5 ( 2 z - 1) - 4 ( z + 9 ) = 4 ( z + 1 ) = 5 * 2 z - 5 * 1 - 4 * z - 4 * 9 = 4 * z + 4 * 1 10 z - 5 - 4 z - 36 = 4 z + 4 6 z - 41 = 4 z + 4 Subtract 4 z to both sides 6 z - 41 - 4 z = 4 z + 4 - 4 z 2 z - 41 = 4 Add 41 to both sides 2 z - 41 + 41 = 4 + 41 2 z = 45
May 11, 2012

math
¡Ü mean less or equal
May 11, 2012

math
4 x - 5 ¡Ü 2( x - 7 ) 4 x - 5 ¡Ü 2 * x - 2 * 7 4 x - 5 ¡Ü 2 x - 14 Add - 2 x to both sides 4 x - 2 x - 5 ¡Ü 2 x - 14 - 2 x 2 x - 5 ¡Ü - 14 Add 5 to both sides 2 x - 5 + 5 ¡Ü - 14 + 5 2 x ¡Ü - 9 Divide...
May 11, 2012

trig
cos ( pi - x )= - cos x
May 11, 2012

math
3 x ^ 2 - 5 = 0 Add 5 to both sides 3 x ^ 2 - 5 + 5 = 0 + 5 3 x ^ 2 = 5 Divide both sides by 3 x ^ 2 = 5 / 3 x = + OR - sqrt ( 5 / 3 ) 2 solutions : x = sqrt ( 5 / 3 ) and - sqrt ( 5 / 3 )
May 10, 2012

Math
( 3 x - 1 ) ^ -5 = 1 / ( 3 x -1 ) ^ 5 ( 3x - 1 ) ^ - 4 = 1 / ( 3 x -1 ) ^ 4 - 12 ( 3 x -1 ) ^ - 5 * ( 6 x + 7 ) ^ 5 + 30 ( 3 x - 1 ) ^ - 4 * ( 6 x + 7) ^ 4 = [ - 12 ( 6 x + 7 ) ^ 5 ) + 30 * ( 3 x - 1 ) * ( 6 x + 7 ) ^ 4 ] / ( 3 x - 1 ) ^ 5 = 6 * ( 6 x + 7 ) ^ 4 * [ ( - 2...
May 9, 2012

math
y = - 4 * 2 - 5 y = - 8 - 5 y = - 13
May 9, 2012

math
( a - b ) ^ 2 = a ^ 2 - 2 a b + b ^ 2 ( 8 - 0.02 ) ^ 2 = 8 ^ 2 - 2 * 8 * 0.02 + 0.02 ^ 2 = 64 - 0.32 + 0.0004 = 63.6804 2 + 8.3 * 0.4 = 2 + 3.32 = 5.32 ( 8 - 0.02 ) ^ 2 / ( 2 + 8.3 * 0.4 ) = 63.6804 / 5.32 = 11,97
May 9, 2012

algebra 2
In google type: quadratic equation online When you see list of results click on: Free Online Quadratic Equation Solver:Solve by Quadratic Formula When page be open click option : Solve by Completing the Square Then in rectangle type: x^2-4x-32=0 and click option: solve it You ...
May 9, 2012

Maths
When we have a two digit number, it can be expressed as : 10 a + b In this case : 10 a + b = orginal number The sum of the 2 digits is 15 a + b = 15 Subtract a to both sides a - a + b = 15 - a b = 15 - a If you reverse the digits of 10 a + b, it will be : 10 b + a 10 b + a = ...
May 8, 2012

PHYSICS
If MTR mean metre and mm mean millimeter, and if you want to find mass then : 1 m = 100 cm 1 cm = 10 mm 1 mm = 1 / 10 = 0.1 cm V = 100 * 100 * 4 * 0.1 = 4000 cm ^ 3 m = V * rho = 4000 * 1.056 = 4224 g 1 kg = 1000 g 4224 g = 4.224 kg Greek letter rho = density
May 8, 2012

math HELP
When the ball hits the ground height be zero. 25 t - 16 t ^ 2 = 0 t ( 25 - 16 t ) = 0 This equation will be zero when t = 0 OR 25 - 16 t = 0 25 - 16 t = 0 Add 16 to both sides 25 - 16 t + 16 t = 0 + 16 t 25 = 16 t Divide both sides by 16 25 / 16 = t t = 25 / 16 When t = 0 ball...
May 8, 2012

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