Thursday

April 24, 2014

April 24, 2014

Total # Posts: 1,610

**calculus**

log ( a ^ n ) = n log ( a ) x log ( 5 ) = log ( 100 ) Divide both sides by log ( 5 ) x = log ( 100 ) / log ( 5 ) x = 2.8613531 5 ^ 2.8613531 = 100

**maths**

5 + 3 cosec ^ 2 (theta) = 8 3 cosec ^ 2 (theta) = 8 - 5 3 cosec ^ 2 (theta) = 3 Divide both sides by 3 cosec ^ 2 (theta) = 3 / 3 cosec ^ 2 (theta) = 1 cosec (theta) = sqrt ( 1 ) cosec (theta) = + OR - 1 cosec ( theta ) = 1 / sin ( theta ) sin ( theta ) = 1 / cosec ( theta ) si...

**arithmetic**

An arithmetic progression (A.P) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. If the initial term of an arithmetic progression is a1 and the common difference of successive members is d, then the nth term of...

**math**

2. x = 2 y = 3 translated to ( 7 , - 1 ) 7 - 2 = 5 - 1 - 3 = - 4 a) translate right 5 , down 4 3. x = - 5 y = - 8 When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite. c ) ( 5 , -8 )

**Algebra; MAJOR HELP**

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: s ^ 2 - 7 s + 14 = 2 and click option: solve it! You wil see solution step-by-step

**math**

There are b boys an g girls in the class b / g = 8 / 17 Multiply both sides by g b = 8 g / 17 b + g = 375 8 g / 17 + g = 375 8 g / 17 + 17 g / 17 = 375 25 g / 17 = 375 Multiply both sides by 17 25 g = 375 * 17 25 g = 6375 Divide both sides by 25 g = 6375 / 25 g = 255 b = 375 -...

**Math Help**

5 / 22 t = 2 * 5 / ( 2 * 22 ) t = 10 / 44 t 2 / 4 t = 2 * 11 / ( 4 * 11 ) t = 22 / 44 t 5 / 22 t + 2 / 4 t = 10 / 44 t + 22 / 44 t = 32 / 44 t = ( 4 * 8 ) / ( 4 * 11 ) t = 8 / 11 t

**Math**

You must solve two quadratic equations. 0.02 s ^ 2 + 1.1 s = 51 and 0.02 s ^ 2 + 1.1 s = 315.12 If you dont know how solve equations in google type: quadratic equation online When you see list of results click on: Free Online Quadratic Equation Solver:Solve by Quadratic Formul...

**Algebra; HELP**

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: 3x^2+18x+24=0 and click option: solve it! You wil see solution step-by-step

**Algebra: Help Please**

x = - 1 8 ^ - 1 = 1 / 8 x = - 2 8 ^ - 2 = 1 / 8 ^ 2 = 1 / 64 x = - 3 8 ^ - 3 = 1 / 8 ^ 3 = 1 / 512

**Algebra: Help Please**

f ( x ) = 8 ^ x x = 0 8 ^ 0 = 1 x = 1 8 ^ 1 = 8 x = 2 8 ^ 2 = 64 x = 3 8 ^ 3 = 512

**Math**

( - 2 q ^ 2 + q + 3 ) - 5 ( q ^ 2 + 2 q - 1 ) = - 7 q ^ 2 - 9 q + 8

**Math**

a ) ( 4 d - 6 )( - 3 d ) = 4 d * ( - 3 d ) - 6 * ( - 3 d ) = - 12 d ^ 2 + 18 d b ) 5 g ( g ^ 2 - 2 g + 1 ) = 5 g * g ^ 2 - 5 g * 2 g + 5 g * 1 = 5 g ^ 3 - 10 g ^ 2 + 5 g c ) ( - 2 q ^ 2 + q + 3 ) - 5 ( q ^ 2 + 2 q - 1 ) = - 2 q ^ 2 + q + 3 - 5 q ^ 2 - 10 q + 5 = - 2 q ^ 2 - 5 ...

**pre-cal**

log ( a ^ n ) = n * log ( a ) ( 2 x - 1 ) * log ( 4 ) = log ( 6 ) Divide both sides by log ( 4 ) 2 x - 1 = log ( 6 ) / log ( 4 ) 2 x = log ( 6 ) / log ( 4 ) + 1 2 x = log ( 6 ) / log ( 4 ) + log ( 4 ) / log ( 4 ) 2 x = [ log ( 6 ) + log ( 4 ) ] / log 4 2 x = log ( 24 ) / log (...

**arithmetic**

6 ( x - 6 ) + 2 = 8 ( x + 2 ) - 8 6 * x + 6 * ( - 6 ) + 2 = 8 * x + 8 * 2 - 8 6 x - 36 + 2 = 8 x + 16 - 8 6 x - 34 = 8 x + 8 6 x - 8 x = 8 + 34 - 2 x = 42 Divide both sides by - 2 x = 42 / ( - 2 ) x = - 21

**math**

In google type : csc20° − cot 40° When you see list of result click on : What is csc(20) - cot(40)? or csc(pi/9) - cot(2pi/9) You will see solution step by step.

**math**

8 / 12 = 4 * 2 / (4 * 3 ) = 2 / 3 hours / lawnmower 30 * 2 / 3 = 60 / 3 = 20 hours OR 8 / 12 = x / 30 8 * 30 = 12 * x 240 = 12 x Divide both sides by 12 240 / 12 = x 20 = x x = 20 hours OR 30 / 12 = 2.5 2.5 * 8 = 20 hours

**Math**

3 k / 4 - 28 - 2 k / 3 = 37 Multiply both sides by 4 ( 3 k / 4 ) * 4 - 28 * 4 - 2 k * 4 / 3 = 37 * 4 3 k - 112 - 8 k / 3 = 148 Multiply both sides by 3 3 k * 3 - 112 * 3 - ( 8 k / 3 ) * 3 = 148 * 3 9 k - 336 - 8 k = 444 9 k - 8 k = 444 + 336 k = 780

**quadratic equation**

If your expressions mean : x ^ 2 - 9 x = 0 x ^ 2 +8 x = 0 x ^ 2 = 6 x x ^ 2 = - 3 x Then 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 your e...

**Algebra 2**

The term b ^ 2 - 4 a c is called the discriminant and gives important information about the number and nature of the solutions to the quadratic equation to be solved. Three cases are possible: If D > 0, the equation has 2 real solutions. If D = 0, the equation has 1 real so...

**algebra**

w = the number of WHITE ribbions

**algebra**

b = the number of blue ribbions w = the number of blue ribbions r = the number of red ribbions b = w - 2 r = w + 3 w + b + r = 43 w + w - 2 + w + 3 = 43 3 w - 2 + 3 = 43 3 w + 1 = 43 3 w = 43 - 1 3 w = 42 Divide both sides by 3 w = 42 / 3 w = 14 b = w - 2 = 14 - 2 = 12 r = w +...

**Algebra**

a = age of the twins b = age of the third child b = a - 3 a + a + b = 42 2 a + b = 42 2 a + a - 3 = 42 3 a - 3 = 42 3 a = 42 + 3 3 a = 45 Divide both sides by 3 a = 45 / 3 a = 15 b = 15 - 3 b = 12

**math**

x = The number of sweets in container x y = The number of sweets in Container y x = 24 + y OR y = x - 24 When you removed 42 sweets from container x then numers of sweets in container x became: x - 42 Numbers of sweets in container y became: y + 42 = thrice of ( x - 42 ) = 3 (...

**Math**

4 / 5 - 2 p / 5 = 6 / 5 Multiply both sides by 5 4 - 2 p = 6 - 2 p = 6 - 4 - 2 p = 2 Divide both sides by -2 p = 2 / ( - 2 ) p = - 1

**Math**

a x ^ 2 + b x + c = 0

**Math**

My answer is also numbers of girls g = 25

**Math**

b = numbers of boys g = numbers of girls Ratio of boys to girls: b / g = 3 / 5 Multiply both sides by 5 5 b / g = 3 Multiply both sides by g 5 b = 3 g Divide both sides by 5 b = 3 g / 5 After adding ratio is : ( b + 5 ) / ( g + 3 ) = 5 / 7 [ ( 3 g / 5 ) + 5 ] / ( g + 3 ) = 5 /...

**trig**

In google type: functions graphs online When you see list of results click on: rechneronline.de/function-graphs/ When page be open in blue rectangle type: 1/2cos(x) And click option: Draw then type : 2cos(x)+1 OR 2cos (x+1) And click option: Draw etc. You must write correct ex...

**math for elementry school teacher**

x =original number Mathematical operations: Add 10 : x + 10 Multiply the result by 4 : ( x + 10 ) * 4 Add 200 : ( x + 10 ) * 4 + 200 Divide by 4 : [ ( x + 10 ) * 4 + 200 ] / 4 Subtract your original number : [ ( ( x + 10 ) * 4 + 200 ) / 4] - x Equation is: [ ( ( x + 10 ) * 4 +...

**Trig**

pi < x < 3 pi / 2 180 ° < x < 270 ° That is Quadran III In Quadran III cosine are negative. cos ( x ) = + OR - 1 /sqrt [ 1 + tan( x ) ^ 2 ] In this case : cos ( x ) = - 1 / sqrt [ 1 + tan( x ) ^ 2 ] cos ( x ) = - 1 / sqrt [ 1 + ( 9 / 4 ) ^ 2 ] cos ( x ) = -...

**Math**

A perfect square is any rational number that is the square of another rational number. 1 ^ 2 = 1 2 ^ 2 = 4 5 ^ 2 = 25 6 ^ 2 = 36 7 ^ 2 = 49 etc. Your series is a perfect square with negative odd numbers. The next 3 numbers are : - 25 , 36 , - 49

**Trig**

In Quadrant III sin ( theta ) , cos ( theta ) , sec ( theta ) and csc( theta ) are negative. tan ( theta ) = sin ( theta ) / cos ( theta ) are positive. tan ( theta ) = + OR -1 / sqrt [ csc ( theta ) ^ 2 - 1 ] tan ( theta ) = + OR -1 / sqrt [ ( -2 ) ^ 2 - 1 ] tan ( theta ) = +...

**math**

In google type: calculatorsoup calculators fractionsorder When you see list of results click on: Ordering Fraction Calculator-Calculator Soup When page be open in rectangle type you are fractions separated wit comma and click option: Calculate You will see answers with explana...

**I NEED HELP (ALGEBRA)**

( 8 x ) ^ 3 * 8 ^ ( -4 ) = 8 ^ 3 * x ^ 3 / 8 ^ 4 = 8 ^ 3 * x ^ 3 / ( 8 ^ 3 * 8 ) = [ ( 8 ^ 3 ) / ( 8 ^ 3 ) ] * ( x ^ 3 / 8 ) = x ^ 3 / 8 2 x ^ ( - 5 ) * y ^ ( - 3 ) = 2 / ( x ^ 5 * y ^ 3 ) [ (4 x ^ 4 y ^ ( - 3) ] ^ ( - 2 ) = [ ( 4 x ^ 4 / y ^ 3 ) ] ^ ( - 2 ) = 1 / ( 4 x ^ 4 / ...

**Trig**

tan ( x ) = sin ( x ) / cos ( x ) tan ( x ) + sin ( x ) = sin ( x ) / cos ( x ) + sin ( x ) = sin ( x ) * [ 1 / cos ( x ) + 1 ] = sin ( x ) * [ sec ( x ) + 1 ] = sin ( x ) * [ 1 + sec ( x )] [ 1 + sec ( x ) ] / [ tan ( x ) + sin ( x ) ] = [ 1 + sec ( x ) ] / [ sin ( x ) * [ 1 ...

**calculus**

Go on: wolframalpha dot com When page be open in rectangle type: limit sin(8 theta) / theta as theta->0 OR limit sin(8 theta) / theta as theta->infinity OR limit sin(8 theta) / theta as theta->-infinity and click option = After few seconds when you see result click op...

**college algebra**

log = natural logarithm log ( a ^ n ) = n * log ( a ) If your expression mean : e ^ ( 0.05 t ) = 1600 then : 0.05 t * log ( e ) = log ( 1600 ) Remark : The natural logarithm of e = 1 0.05 t = log ( 1600 ) Divide both sides by 0.05 t = log ( 1600 ) / 0.05 Remark : 1 / 0.05 = 20...

**Precalculus**

No it isn't. The correct answer is x = 0 6 ^ ( x + 3 ) = 6 ^ ( 0 + 3 ) = 6 ^ 3 = 216 6 ^ x = 6 ^ 0 = 1 216 - 1 = 215

**Integral Calculus**

Go on: wolframalpha dot com When page be open in rectangle type: integrate (5y+4) dy/ã5y-1 and click option = After few seconds when you see result click option: Show steps

**math-calculus**

| x ^ 2 - 2 x - 6 |= 4 Eliminate the absolute value : x ^ 2 - 2 x - 6 = 4 OR x ^ 2 - 2 x - 6 = - 4 Your must solve both equations. In google type: quadratic equation online When you see list of results click on: Free Online Quadratic Equation Solver:Solve by Quadratic Formula ...

**math**

100% = 100 / 100 = 1 10 % = 10 / 100 = 0.1 100% + 10 % = 1 + 0.1 = 1.1 A = Original Area A1 = New Area Original Area: A = W * L = 450 m ^ 2 New Area: A1 = 1.1 * W * 1.1 * L A1 = 1.1 * 1.1 * W * L ( Remark: W * L = A ) A1 = 1.21 * A A1 = 1.21 * 450 = 544.5 m ^ 2

**algebra**

1. All parts must be great of 0 less numbe is 11 solution x > 11 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 in rectangle type: 2x^2-x=-7 and click opt...

**calculus**

Go on: wolframalpha dot com When page be open in rectangle type: integrate cos^3(2x-5)dx and click option = After few seconds when you see result click option: Show steps On wolframalpha dot com you can practice any kind of calculus.

**calculus**

Go on: wolframalpha dot com When page be open in rectangle type: derivative (5 sec^2 x-7 ) ^3 (x^5-5 cosec x - 1)^7 and click option = After few seconds when you see result click option: Show steps

**Trig**

sec ( theta ) = 1 / cos ( theta ) sec ( theta ) - cos( theta ) = [ 1 / cos ( theta ) ] - cos ( theta ) = [ 1 - cos ^ 2 ( theta )] / cos ( theta ) = sin ^ 2 ( theta) / cos ( theta ) = sin ( theta ) * sin ( theta ) / cos ( theta ) = [ sin ( theta ) / cos ( theta ) ] * sin ( thet...

**geometry**

In google type: Use the figure below to answer questions 8-10. Point B is the midpoint of Segment A C.. You will find answer

**Calculus**

Go on: wolframalpha dot com When page be open in rectangle type: second derivative 3/(x^2+12) and click option = After few seconds when you see result click option: Show steps On wolframalpha dot com you can practice any kind of calculus.

**Trigonometry**

Remark: cos ^ 2 ( x ) = 1 - sin ^ 2 ( x ) 12 cos ^ 2 ( x )= 12 [ 1 - sin ^ 2 ( x ) ] = 12 - 12 sin ^ 2 ( x ) 29 sin ( x ) - 12 cos ^ 2 ( x ) + 4 = 29 sin ( x ) - [ 12 - 12 sin ^ 2 ( x ) ] + 4 = 29 sin ( x ) - 12 + 12 sin ^ 2 ( x ) + 4 = 29 sin ( x ) - 8 + 12 sin ^ 2 ( x ) = 12...

**Trigonometry**

If your expression mean: 4+29sin(x)=12cos^2(x) then go on: wolframalpha dot com When page be open in rectangle type: solve 4+29sin(x)=12cos^2(x) and click option = After few seconds when you see result click option: Show steps

**calc 1**

Go on: wolframalpha dot com When page be open in rectangle type: integrate e^(8x)sin(e^(8x)) and click option = After few seconds when you see result click option: Show steps On wolframalpha dot com you can practice any kind of calculus.

**calculus**

Go on: wolframalpha dot com When page be open in rectangle type: integrate (sin(2x))^2cos(2x)dx and click option = After few seconds when you see result click option: Show steps Then in rectangle type: derivative (1/6)sin(2x)^3 click option = and Show steps On wolframalpha dot...

**Math**

In google type: functions graphs online When you see list of results click on: rechneronline.de/function-graphs/ When page be open in blue rectangle type: x^2+3x-10 Set: Range x-axis from -6 to 4 Range y-axis from -13 to 7 and click option: Draw The graph of a quadratic functi...

**calculus**

Go on: wolframalpha dot com When page be open in rectangle type: integrate (6x+7)/(x^2-8x+25) and click option = After few seconds when you see result click option: Show steps On wolframalpha dot com you can practice any kind of calculus.

**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: 2x^2+8x=-5 and click option: solve it! You wil see solution step-by-step

**MATH**

Go on: wolframalpha dot com When page be open in rectangle type: integrate (x^2+1)^2 and click option = After few seconds when you see result click option: Show steps On wolframalpha dot com you can practice any kind of calculus.

**Algebra**

Go on: wolframalpha dot com When page be open in rectangle type: -4^2+44x-160=0 and click option = After few seconds you will see graph,and solution .

**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+18x+4=0 and click option: solve it! You wil see solution step-by-step.

**calculus**

Go on: wolframalpha dot com When page be open in rectangle type: x^3 - 12x^2 + 36x and click option = After few seconds you will see everything about that function.

**algerbra**

2 x + 7 < x + 6 2 x - x < 6 - 7 x < -1

**math**

On your computer you have calculator: start -> Programs -> Accessories -> Calculator When you open Calculator click: View then Sceintific

**math**

On your computer you have calculator: start -> Programs -> Accessories -> Calculator When you open Calculator click: View then Sceintific

**Calculus**

Go on: wolframalpha dot com When page be open in rectangle type: integrate dx/sqrt(9-8x-x^2) and click option = After few seconds when you see result click option: Show steps

**Calculus**

Go on: wolframalpha dot com When page be open in rectangle type: integrate sin(4x) cos^2(4x) dx and click option = After few seconds when you see result click option: Show steps On wolframalpha dot com you can practice any kind of calculus.

**Math**

5 / 8 = 3 5 / 3 8 = 15 / 24 5 / 6 = 4 5 / 4 6 = 20 / 24 5 / 8 + 5 / 6 = 15 / 24 + 20 / 24 = 35 / 24 = ( 24 + 11 ) / 24 = 1 + 11 / 24 = 1 11 / 24 Correct. 13 1 / 2 = 13 6 / 6 + 3 / 6 = 78 / 6 + 3 / 6 = 81 / 6 7 2 / 3 = 7 6 / 6 + 4 / 6 = 42 / 6 + 4 / 6 = 46 / 6 13 1 / 2 + 7 2 / ...

**Alg. II**

1. 4 x - 8 = 4 ( x - 2 ) x ^ 2 - 2 x = x ( x - 2 ) (4 x - 8 ) / ( x ^ 2 - 2 x ) = 4 ( x - 2 ) / [ x ( x - 2 ) ] = 4 / x 2. ( 8 x - 4 ) = 4 ( 2 x - 1 ) 2 x ^ 2 + 9 x - 5 = 2 x ^ 2 + 9 x - 5 + x - x = ( 2 x ^ 2 - x ) + ( 10 x - 5 ) = x ( 2 x - 1 ) + 5 ( 2 x - 1 ) = ( 2 x - 1 ) (...

**Geometry**

A x-intercept is a point on the graph where y is zero. 4 x - 6 y = 12 for y = 0 4 x - 0 = 12 4 x = 12 Divide both sides with 4 x = 3 x-intercept = 3

**geometry**

W = Width L = Length A = Area W = L - 6 A = W * L 135 =( L - 6 ) * L 135 = L ^ 2 - 6 L The exact solution are : L = - 9 cm and L = 15 cm The length can't be negative so: L = 15 cm W = L - 6 W = 15 - 6 = 9 cm A = W * L = 15 * 9 = 135 cm ^ 2 P. S. If you don't know how t...

**MATH**

1. 5 / 8 = ( 3 * 5 ) / ( 3 * 8 ) = 15 / 24 5 / 6 = ( 4 * 5 ) / ( 4 * 6 ) = 20 / 24 5 / 8 + 5 / 6 = 15 / 24 + 20 / 24 = 35 / 24 = ( 24 + 11 ) / 24 = 1 11 / 24 2. 2 3 / 5 + 4 4 / 5 = 2 + 4 + 3 / 5 + 4 / 5 = 6 + 7 / 5 = 6 + ( 5 + 2 ) / 5 = 6 + 1 + 2 / 5 = 7 2 / 5 3. 1 / 2 = 3 / 6...

**algebra the slope- intercept form**

If the equation of the line is given in the form : y = m x + b then m is the slope. In this case slope = 1 A y-intercept is a point on the graph where x is zero. y = x - 7 for x = 0 y = 0 - 7 y = - 7 y-intercept = - 7 For graph : Go on: wolframalpha dot com When page be open i...

**polynomial function**

p( - 4 )= 4 * ( - 4 ) ^ 3 - 3 * ( - 4 ) - 4 = 4 * ( - 64 ) + 3 * 4 - 4 = -256 + 12 - 4 = - 248 p( 1 / 4 )= 4 * ( 1 / 4 ) ^ 3 - 3 * ( 1 / 4 ) - 4 = 4 * 1 / 64 - 3 / 4 - 4 = 4 / ( 4 * 16 ) - 3 / 4 - 4 = 1 / 16 - ( 3 * 4 ) / ( 4 * 4 ) - ( 4 * 16 / 16 ) = 1 / 16 - 12 / 16 - 64 / 1...

**Math**

Take the input , divide it by 2 and then add 4. ( 12 / 2 ) + 4 = 6 + 4 = 10 ( ? / 2 ) + 4 = 16 Mulitiply both sides with 2 ? + 8 = 32 ? = 32 - 8 = 24 ( 32 / 2 ) + 4 = 16 + 4 = 20 ( 62 / 2 ) + 4 = 31 + 4 = 35 ( 70 / 2 ) + 4 = 35 + 4 = 39 ( 86 / 2 ) + 4 = 43 + 4 = 47 So, the rul...

**algebra**

1.9 s + 6 = 3.1 - s 1.9 s + s = 3.1 - 6 2.9 s = - 2.9 Divide both sides with 2.9 s = - 1

**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: -9v^2+35v-30=1-v and click option: solve it! You wil see solution step-by-step.

**Math**

3 ( x + 4 ) ^ 2 = - 27 Divide both sides with 3 ( x + 4 ) ^ 2 = - 9 The left hand side is a perfect square,so you can apply the square root method : x + 4 = + OR - sqrt ( - 9 ) x = + OR - sqrt ( - 9 )- 4 ( Remark: sqrt ( - 9 ) = sqrt ( - 1 * 3 ^ 2 ) = + OR - 3i where i = Imagi...

**Calculus**

Go on: wolframalpha dot com When page be open in rectangle type: derivative ln(x^2/2x-3) and click option = After few seconds when you see result click option: Show steps On wolframalpha dot com you can practice any kind of calculus.

**algebra**

The equation of any straight line, called a linear equation, can be written as: y = m x + b where : m is the slope of the line and b is the y-intercept In this case: m = - 8 / 11 y-intercept = - 5

**algebra**

-7 ( 11 - 4w ) - 15 w = -27- ( 50 - 13 w ) = - 7 * 11 + 28 w - 15 w = - 27 - 50 + 13 w ( Remark : -7 * - 4 w = 28 w - ( -13 w ) = 13 w ) -77 + 28 w - 15 w = - 27 - 50 + 13 w 28 w - 15 w - 13 w = - 27 - 50 + 77 0 = - 77 + 77 0 = 0 All values of w are solutions.

**Algebra 2**

P = Perimeter L = Length W = Width P = 2 L + 2 W P = 2 ( L + W ) P = 122 m L = 5 W - 11 122 = 2 ( 5 W - 11 + W ) 122 = 2 ( 6 W - 11 ) 122 = 12 W - 22 122 + 22 = 12 W 12 W = 144 Diwidw both sides with 12 W = 144 / 12 W = 12 m L = 5 W - 11 L = 5 * 12 - 11 L = 60 - 11 L = 49 m P ...

**Math 111**

a x ^ 4 + b x ^ 3 + c x ^ 2 + d x + e = a ( x - x1 ) * ( x - x2 ) * ( x - x3 ) * ( x - x4 ) In your case: a = 1 So: x ^ 4 + b x ^ 3 + c x ^ 2 + d x + e = ( x - ( - 6 ) ) * ( x - ( - 3 ) ) * ( x - 2 ) * ( x - 6 ) = ( x + 6 ) * ( x + 3 ) * ( x - 2 ) * ( x - 6 ) = x ^ 4 + x ^ 3 -...

**maths**

y = x - 2 y ^ 2 + x ^ 2 =10 ( x - 2 ) ^ 2 + x ^ 2 = 10 x ^ 2 - 2 * 2 x + 2 ^ 2 + x ^ 2 = 10 2 x ^ 2 - 4 x + 4 = 10 2 x ^ 2 - 4 x + 4 - 10 = 0 2 x ^ 2 - 4 x - 6 = 0 If you don't know how to solve this equation in google type: quadratic equation online When you see list of r...

**Math C30**

Go on: wolframalpha dot com When page be open in rectangle type: solve 2cos^2x=1 and click option = After few seconds when you see result click option: Show steps

**math**

7 - 4w <= 19 -4w <= 19 - 7 -4w <= 12 Divide both sides with -4 ( Remark: When you multiply or divide an inequality by a negative number, you must reverse the inequality symbol. ) w >= -3

**alegbra 1**

The equation of a straight line is : y = mx + b m = Slope b = the Y Intercept y = - 1 / 3 x - 3 Slope = - 1 / 3 Y Intercept = - 3

**algebra**

L = Lenght W = Width P = Perimeter P = 64 m W = 4 + L / 3 P = 2 * ( W + L ) = 64 m 64 = 2 * ( 4 + L / 3 + L ) Divide both sides with 2 32 = 4 + L / 3 + L 32 - 4 = L / 3 + L 28 = 4 L / 3 Multiply both sides with 3 28 * 3 = 4 L 84 = 4 L Divide both sides with 4 84 / 4 = L L = 21...

**Calculus**

Go on: wolframalpha dot com When page be open in rectangle type: derivative -3x((x+1)^1/2) and click option = After few seconds when you see result click option: Show steps On wolframalpha dot com you can practice any kind of calculus.

**Math**

6 + ( 4 x 3 ) x 2 = 30 6 + 12 x 2 = 30 6 + 24 = 30

**Pre Calculus**

1 - ln ( 3 x + 2 ) = 0 1 = ln ( 3 x + 2 ) Cancel logarithms by taking exp of both sides: e = 3 x + 2 3 x + 2 = e 3 x = e - 2 Divide both sides with 3 x = ( e - 2 ) / 3

**math**

a = first side b = second side A = Area b = a + 7 A = a * b A = a * ( a + 7 ) A = a ^ 2 + 7 a a ^ 2 + 7 a = 330 a ^ 2 + 7 a - 330 = 0 The exact solutions are: a = -22 and a = 15 The length can't be negative, so a = 15 m b = a + 7 b = 15 + 7 b = 22 m A = a * b A = 15 * 22 A...

**Algebra 2**

Go on: wolframalpha dot com When page be open in rectangle type: solve 2x^2 - 5bx + 4cx - 10bc = 0 and click option = After few seconds ,when you see results click option: Show steps

**algebra**

The answer of Ms,Sue is wrong. 9 / 10 Y = 36 Multiply both sides with 10 Y 9 = 36 * 10 Y 9 = 360 Y Divide both sides with 9 1 = 40 Y Divide both sides with 40 1 / 40 = Y Y = 1 / 40 Y = 0.025

**Math**

x + 4 y = 4 4 y = 4 - x Divide both sides with 4 y = 1 - x / 4 12 y = 12 - 3 12 y = 9 Divide both sides with 12 y = 9 / 12 y = ( 3 * 3 ) / ( 3 * 4 = y = 3 / 4 In google type : functions graphs online When you see list of results click on : rechneronline.de/function-graphs/ Whe...

**Calculus**

Go on: wolframalpha dot com When page be open in rectangle type: derivative (6x^3+2x)/(x^2-3x+5) and click option = After few seconds you will see result. Then click option: Show steps

**calculus**

Go on: wolframalpha dot com When page be open in rectangle type: solve e^8x^2-5 = 14 and click option = After few seconds you will see result. Then click option: Show steps

**math**

TODAY

**College Algebra :( **

In google type: functions graphs online When you see list of results click on: rechneronline.de/function-graphs/ When page be open in first rectangle type: 3x In second rectangle type: -2x In third rectangle type: (2/3)*x and click option: Draw Again open: rechneronline.de/fun...

**Calculus**

An inflection point is a point on a curve at which the second derivative changes sign. You must find point where second derivative = 0 Go on: wolframalpha dot com When page be open in rectangle type: second derivative of -10.61t^(3)+208.808t^(2)-168.202t+9775.234 and click opt...

**algebra**

( 55 + 80 + 70 + x ) / 4 <= 65 Multiply both sides with 4 55 + 80 + 70 + x <= 65 * 4 55 + 80 + 70 + x <= 260 x <= 260 - 55 - 80 - 70 x <= 55

**algebra**

4 x + y = 5 y = 5 - 4 x 3 x – 7 y = 27 - 7 y = 27 - 3 x Divide both sides with -7 y = - 27 /7 + 3 x / 7 In google type: functions graphs online When you see list of results click on: rechneronline.de/function-graphs When page be open in blue rectangle type: 5 - 4 x In gra...

**Algebra**

First in google type: Cramer's rule 2 equations When you see list of results click on: occc dot edu/maustin/cramers_rule/cramer's%rule.html and read text Then in google type: Cramer's rule 2x2 solver When you see results click on: Solver Using Cramer's Rule to ...

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