# Posts by Bosnian

Total # Posts: 2,471

**maths**

504347 / 317 = 1591

**maths**

a = first number b = second number b = a + 9 a + b = 25 a + a + 9 = 25 2 a + 9 = 25 Subtract 9 to both sides 2 a + 9 - 9 = 25 - 9 2 a = 16 Divide both sides by 2 a = 16 / 2 = 8 b = a + 9 = 8 + 9 = 17 First number = 8 Second number 17

**math**

My big typo!!! xn - yn = zn Now: n = 8 xn - yn = zn x8 - y8 = z8 ( 1 / 9 ) [ ( 100 ^ n ) - 1 ] - ( 2 / 9 ) (10 ^ n - 1) = 33,333,333 ^ 2 ( 1 / 9 ) [ ( 100 ^ 8 ) - 1 ] - ( 2 / 9 ) (10 ^ 8 - 1) = 33,333,333 ^ 2 ( 1 / 9 ) ( 10,000,000,000,000,000 - 1 ] - ( 2 / 9 ) ( 100,000,000...

**math**

Write your problem as: xn + yn = zn 11 , 1111 , 111111 x1 = 11 x1 = 99 / 9 x1 = ( 100 - 1 ) / 9 x1 = ( 100 ^ 1 - 1 ) / 9 x2 = 1111 x2 = 9999 / 9 x2 = ( 10000 - 1 ) / 9 x2 = ( 100 ^ 2 - 1 ) / 9 x3 = 111111 x2 = 999999 / 9 x2 = ( 1000000 - 1 ) / 9 x2 = ( 100 ^ 3 - 1 ) / 9 etc. ...

**Maths**

If your question mean: lim (3n²-5n+4) / (4n²+7n-1) n?? Then: Divide numerator and denominator by n² lim n?? (3 n²/n²- 5n/n²+4/n²)/(4n²/n²+7n/n²-1/n²)= lim n?? (3-5/n+4/n²) / (4+7/n-1/n²) = (Now Quotient Rule) lim...

**Math**

Your answer is correct. b = boys g = girls b + g = 12 + 18 = 30 Boys: b = 12 / 30 = 2 * 2 * 3 / 2 * 3 * 5 = 2 / 5

**Math**

1 / 2 divided by 6 = 1 / 12 1 / 12 is less than 1

**algebra**

x² - 8x + 15 = x² - 5x - 3 x + 15 = x ? x - 5 ? x - 3 ? x + 15 = x ? x - 5 ? x - 3 ? x - 3 ? ( - 5 ) = x ( x - 5 ) - 3 ( x - 5 ) = ( x - 5 ) ( x - 3 )

**logs**

Your answer is correct, but you also can write: log ( x ^ n ) = n ? log ( x ) 0.5 = 1 / 2 = 1 / 2 ^ 1 = 2 ^ ( - 1 ) log ( 0.5 ) = log [ 2 ^ ( - 1 ) ] = ( - 1 ) * log ( 2 ) = - log ( 2 ) log ( 0.91 ^ t ) = t ? log ( 0.91 ) 0.5 = 0.91 ^ t log ( 0.5 ) = log ( 0.91 ^ t ) - log ( 2...

**Math, factoring**

For x = 3 x ^ 4 + a x ^ 3 + a x ^ 2 + 11 x + b = 0 Put x = 3 in this equation: 3 ^ 4 + a * 3 ^ 3 + a * 3 ^ 2 + 11 * 3 + b = 0 81 + 27 a + 9 a + 33 + b = 0 36 a + b + 114 = 0 For x = - 2 x ^ 4 + a x ^ 3 + a x ^ 2 + 11 x + b = 0 Put x = - 2 in this equation: ( - 2 ) ^ 4 + a...

**math**

3 x² – 2 = 5 x 3 x² – 2 - 5 x = 0 3 x² - 5 x - 2 = 0 a x² + b x + c = 0 in this case: a = 3 , b = - 5 , c = - 2 D = b² - 4 ? a ? c D = ( - 5 )² - 4 ? 3 ? ( - 2 ) D = 25 + 4 ? 3 ? 2 D = 25 + 24 D = 49 If D > 0, the equation has 2 real ...

**math**

c / 5 + 1 = 9 Subtract 1 to both sides c / 5 + 1 - 1 = 9 - 1 c / 5 = 8 Multiply both sides by 5 c = 8 * 5 c = 40

**MAths**

My typo. 180° - x = 360° - 4 x Add 4 x to both sides 180° - x + 4 x = 360° - 4 x + 4 x

**MAths**

x = the angle Complement: 90° - x Supplement: 180° - x 180° - x = 4 ? ( 90° - x ) 180° - x = 4 ? 90° - 4 ? x 180° - x = 360° - 4 x Add 4 x to both sides 180° - x + 4 x = 360° - 4 x - 4 x 180° + 3 x = 360° Subtract 180° to ...

**maths --plse help me..**

a = the greater number b = the smaller number When the greater of the two numbers increased by 1 divides the sum of the numbers the result is 3 / 2 mean : ( a + 1 ) / ( a + b ) = 3 / 2 When the difference of these numbers is divide by the smaller ,the result is 1 / 2 mean: ( a...

**Math**

30 / 5 = 6 20 / 5 = 4 6 ? 4 = 24 24 squares can be cut from this paper.

**math**

23467 + 765446 + 98656 = 887569 887600 Rounded to the nearest hundred.

**math**

489967234 + 500101234 + 657999812 = 1648068280 To round numbers to the nearest ten thousand, make the numbers whose last four digits are 0001 through 4999 into the next lower number that ends in 0000. For example 54424 rounded to the nearest ten thousand would be 50000. ...

**Math**

The n-th term of a geometric sequence with initial value a1 and common ratio r is given by: an = a1 ? r ^ ( n - 1 ) a5 = a1 ? r ^ ( 5 - 1 ) a5 = a1 ? r ^ 4 a5 = 8 ? ( - 5 ) ^ 4 a5 = 8 ? 625 a5 = 5000

**algebra plz help!!**

t ^ 4 - 5 q t ^ 2 - 24 q ^ 2 = t ^ 4 - 8 q t ^ 2 + 3 q t ^ 2 - 24 q ^ 2 = t ^ 4 - 8 q t ^ 2 + 3 q t ^ 2 - 24 q ^ 2 = ( - 24 q ^ 2 + 3 q t ^ 2 ) + ( - 8 q t ^ 2 + t ^ 2 * t ^ 2 ) = 3 q ? ( - 8 q + t ^ 2 ) + t ^ 2 ? ( - 8 q + t ^ 2 ) = ( - 8 q + t ^ 2 ) ? 3 q + ( - 8 q + t ^ 2...

**math**

1 week = 7 days 1 week = 7 days ? 24 h = 168 h 1 m³ = 1000 ? 1 ? = 1 / 1000 m³ = 0.001 m³ 10 ? = 10 / 1000 m³ = 0.01 m³ 168 ? 10 ? = 1680 ? The amount of water lost in one week = 1680 ? 1680 ? = 1680 / 1000 =1.68 m³ V = volume of water lost = 1.68...

**algebra expression (math)**

x = original number x + 5 = 6 * x x + 5 = 6 x Subtract x to both sides x + 5 - x = 6 x - x 5 = 5 x Divide both sides by 5 1 = x x = 1

**Math**

OR 3 / 4 = 0.75 18 / 0.75 = 24

**Math**

x = mumbers of games ( 3 / 4 ) x = 18 3 x / 4 = 18 3 x = 4 * 18 = 72 x = 72 / 3 = 24

**maths**

tan x = sin x / cos x sec x - tan x / sin x = 1 / cos x - ( sin x / cos x ) / sin x = 1 / cos x - sin x / cos x * sin x = 1 / cos x - 1 / cos x = 0 sec x - tan x / sin x is always zero, regardless value of cos x

**Math**

cos² x = 1 - sin² x cos x = ± ? ( 1 - sin² x ) sec x = 1 / cos x sec x = 1 / ± ? ( 1 - sin² x ) 4 / 3 = 1 / ± ? ( 1 - sin² x ) Take reciprocal value of both sides 3 / 4 = ± ? ( 1 - sin² x ) Raise both sides to on the ...

**Algebra**

The first 40 hours are paid at $18/hour. For any amount of time over that, the rate is 18 * 1.5 = $27 So: P(t) = 18 * 40 + 27 * ( t - 40 ) = 720 + 27 t - 27 * 40 = 720 + 27 t - 1080 = 27 t - 360

**Math**

You're welcome.

**Math**

The geometric mean is the nth root of the product of n numbers. a7 = ? ( 75 * 48 ) a7 = ?3600 = 60

**Math**

72, 12 , 2.. geometric sequence. first term a = 72 common ratio r = 1 / 6 ? 0 to infinity = a / ( 1 - r ) = 72 / ( 1 - 1 / 6 ) = 72 / ( 6 / 6 - 1 / 6 ) = 72 / ( 5 / 6 ) = 72 * 6 / 5 = 432 / 5 = 86.4

**Math**

21, 15, 9, 3, . . . 15 - 21 = - 6 9 - 15 = - 6 3 - 9 = - 6 This is an arithmetic sequences. First term a1 = 21 Common difference: d = - 6 nth term of the arithmetic sequence: an = a1 + ( n - 1 ) ? d In this case n = 29 a29 = 21 + ( 29 - 1 ) ? ( - 6 ) a29 = 21 + 28 ? ( - 6 ) ...

**Geometry**

The standard form equation of a circle: ( x - a ) ^ 2 + ( y - b ) ^ 2 = r ^ 2 a and b are the x and y coordinates of the center of the circle. r = the radius of the circle. In this case: a = - 4 , b = - 3 [ x - ( - 4 ) ] ^ 2 + [ y - ( - 3 ) ] ^ 2 = r ^ 2 ( x + 4 ) ^ 2 + ( y + ...

**Math**

g = grandfathers age d = granddaughter age You have two conditions for a grandfather: g = 10 d g = d + 54 Now: g = g 10 d = d + 54 Subtract d to both sides 10 d - d = d + 54 - d 9 d = 54 Divide both sides by 9 d = 54 / 9 = 6 yrs g = 10 d = 10 * 6 = 60 yrs OR g = d + 54 g = 6...

**Maths**

1 / x

**math**

If delta SIN=12/13 mean: sin ? = 12 / 13 Then: cos ? = ± ? ( 1 - sin² ? ) cos ? = ± ? [ 1 - ( 12 / 13 )² ] cos ? = ± ? [ 1 - ( 144 / 169 ) ] cos ? = ± ? ( 169 / 169 - 144 / 169 ) cos ? = ± ? ( 25 / 169 ) cos ? = ± 5 / 13 tan...

**Pre-calculus**

If your expressiom mean: y = 2 * 10 ^ ( - 44 ) * e ^ ( 0.055 x ) = 50000 then: 2 * 10 ^ ( - 44 ) * e ^ ( 0.055 x ) = 5 * 10 ^ 4 Divide both sides by 2 * 10 ^ ( - 44 ) e ^ ( 0.055 x ) = 5 * 10 ^ 4 / 2 * 10 ^ ( - 44 ) e ^ ( 0.055 x ) = ( 5 / 2 ) * 10 ^ 4 / 10 ^ ( - 44 ) e ^ ( 0....

**Math**

An irrational number is a real number that cannot be written as a simple fraction. ?150 = ? ( 25 * 6 ) = ?25 * ?6 = 5 ?6 ?6 cannot be written as a simple fraction so ?150 = 5 ?6 is an irrational number ?441 = ? (21^2 ) = 21 ?200 = ? (100 * 2 ) = ?100 ?2 = 10 ?2 ?2 cannot be ...

**math**

m + 2 n = 3 Subtract 2 n to both sides m + 2 n - 2 n = 3 - 2 n m = 3 - 2 n Put this value in equation 2 m + n = 0 2 ( 3 - 2 n ) + n = 0 2 * 3 - 2 * 2 n + n = 0 6 - 4 n + n = 0 6 - 3 n = 0 Add 3 n to both sides 6 - 3 n + 3 n = 0 + 3 n 6 = 3 n Divide both sides by 3 6 / 3 = 3 n...

**geometry**

r = d / 2 r = 4.6 / 2 r = 2.3 m r ^ 2 = 2.3 ^ 2 r ^ 2 = 5.29 A(210°) = 7 * r ^ 2 ? ? / 12 A(210°) = 7 * 5.29 ? ? / 12 A(210°) = 37.03 ? ? / 12

**geometry**

If your quesions refers to circle then: Area of a circle: A = r ^ 2 * ? 210 ° / 360 ° = 2 * 3 * 5 * 7 / 2 ^ 3 * 3 ^ 2 * 5 = 7 / 2 ^ 2 * 3 = 7 / 4 * 3 = 7 / 12 A(210°) = r ^ 2 ? ? * 7 / 12 A(210°) = 7 * r ^ 2 ? ? / 12

**Algebra2**

Your answer is correct. cos ? - tan ? * cos ? = 0 cos ? - sin ?/cos ? * cos ? = 0 cos ? - sin ? = 0 cos ? = sin ? sin ? = cos ? In interval: 0 < ? < 2 ? sin ? = cos ? for ? = ? / 4 and ? = 5 ? / 4 By the way this is trigonometry, not algebra.

**Maths**

If he saved 1 / 4 of money, he has: 1 - 1 / 4 = 4 / 4 - 1 / 4 = 3 / 4 of a sum of money. a) 4 / 9 of 3 / 4 = ( 4 / 9 ) * ( 3 / 4 ) = 4 * 3 / 9 * 4 = 12 / 36 = 12 / 12 * 3 = 1 / 3 He spend 1 / 3 money on suitcase. b) 3 / 4 - 1 / 3 = 3 * 3 / 4 * 3 - 4 * 1 / 4 * 3 = 9 / 12 - 4 / ...

**Algebra**

L = W + 5 H = W + 2 V = L * W * H V = ( W + 5 ) * W * ( W + 2 ) V = ( W + 5 ) * ( W + 2 ) * W V = ( W * W + 5 * W + 2 * W + 2 * 5 ) V = ( W ^ 2 + 5 W + 2 W + 10 ) * W V = ( W ^ 2 + 7 W + 10 ) * W V = W ^ 2 * W + 7 W * W + 10 * W V = W ^ 3 + 7 W ^ 2 + 10 W

**Math**

2 2/4 = 2 1/2 = 2.5 1/4 =0.25 2.5 / 0.25 = 10

**Math**

Correction. Sorry my mistake. 2 l + 10 l = 12 l 2 l / 12 l = 2 / 2 * 6 = 1 / 6

**Math**

1 l + 10 l = 11 l 1 l / 11 l = 1 / 11

**math**

LCM = 468 Becouse: The prime factorisation of 9 is: 3 * 3 = 3 ^ 2 The prime factorisation of 18 is: 2 * 9 = 2 * 3 ^ 2 The prime factorisation of 52 is: 4 * 13 = 2 ^ 2 * 13 2 : two occurrences 3 : two occurrences 13 : one occurrence LCM = 2 * 2 * 3 * 3 * 13 = 468 GCF = 1 ...

**Algebra**

ln [ nth root ( x ) ] = ln ( x ) / n ln ?4 = ln ( 4 ) / 2 OR ln [ x ^ n )= n * ln ( x ) ?4 = 4 ^ ( 1 / 2 ) ln [ 4 ^ ( 1 / 2 ) ] = ( 1 / 2 ) * ln ( 4 ) = ln ( 4 ) / 2

**Math**

In google type: inverse matrix calculator When you see results click on: Inverse Matrix Calculator - Matrix Reshish Set your matrix and click option Calculate then click option: Show solution You will see solution step-by step

**math**

L = W + 4 P = 2 W + 2 L = 2 ( W + L ) = 48 2 ( W + W + 4 ) = 48 2 ( 2 W + 4 ) = 48 Divide both sides by 2 2 W + 4 = 24 Subtract 4 to both sides 2 W + 4 - 4 = 24 - 4 2 W = 20 Divide both sides by 2 W = 10 in L = W + 4 = 10 + 4 = 14 in A = L * W = 10 * 14 = 140 in ^ 2

**Math**

- 21.2 - ( - 7.4 ) = - 21.2 + 7.4 = - 13.8 - 35 - ( - 21.2 ) = - 35 + 21.2 = - 13.8 - 48.8 - ( - 35 ) = - 48.8 + 35 = - 13.8 - 62.6 - ( - 48.8 ) = - 62.6 + 48 = - 13.8 an = a(n-1)- 13.8

**Math**

What is dg?

**math**

a = first number b = second number You have conditions: a + b = 31 and a - b = 7 Add the two equations together to eliminate b from the system. a + b = 31 + a - b = 7 ________ a + a + b + ( - b ) = 31 + 7 2 a + b - b = 38 2 a + 0 = 38 2 a = 38 Divide both sides by 2 a = 38 / 2...

**math trignometry**

You also can write this in simplified form: sin ( x / 2 ) = ? [ ( 4 + ?15 ) / 4 * 2 ] sin ( x / 2 ) = ? ( 4 + ?15 ) / ? ( 4 * 2 ) sin ( x / 2 ) = ? ( 4 + ?15 ) / ( ?4 * ?2 ) sin ( x / 2 ) = ? ( 4 + ?15 ) / ( 2 * ?2 ) sin ( x / 2 ) = ? ( 4 + ?15 ) / 2 ?2 cos ( x / 2 ) = ? [ ( 4...

**math trignometry**

sin x = 1 / 4 cos x = ± ? ( 1 - sin ^ 2 x ) In II quadrant cosine is negative so: cos x = - ? ( 1 - sin ^ 2 x ) cos x = - ? [ 1 - (1 / 4 ) ^ 2 ] cos x = - ? [ 1 - (1 / 16 ) ] cos x = - ? [ 16 / 16 - (1 / 16 ) ] cos x = - ? [ ( 16 - 1 ) / 16 ) ] cos x = - ? ( 15 / 16 ) ...

**college algebra**

If The middle number is 2 3 the largest. mean: The middle number is 2 / 3 the largest. then: a = smalest number b = middle number c = largest number a = c / 2 b = ( 2 / 3 ) c a + b + c = 104 c / 2 + ( 2 / 3 ) c + c = 104 3 c / 6 + 4 c / 6 + 6 c / 6 = 104 13 c / 6 = 104 ...

**math**

a1 is the initial term of an arithmetic progression. The common difference of successive members is d. The nth term of an arithmetic progression. an = a1 + ( n - 1 ) d In this case: n = 6 a6 = a1 + ( 6 - 1 ) d = 37 a1 + 5 d = 37 The sum of the n terms of an arithmetic is: Sn...

**Calculus**

If your expression mean: x - 12 * ?( x + 1 ) - 12 then: x - 12 * ?( x + 1 ) - 12 = x - 12 * ( x + 1 ) ^ ( 1 / 3 ) - 12 If h' (x) = 0 h (x) has a local extrema ( maximum or minimum ) In this case: h' (x) = 1 - 12 * ( 1 / 3 ) ( x + 1 ) ^ ( 1 / 3 - 1 ) = 1 - 12 / 3 ( x + ...

**algebra**

If your expression mean: [ ( v ^ 2 + 6 v + 8 ) / ( v ^ 2 + v -12 ) ] / [ ( v + 2 ) / ( 2 v - 6 ) ] then: [ ( v ^ 2 + 6 v + 8 ) / ( v ^ 2 + v -12 ) ] / [ ( v + 2 ) / ( 2 v - 6 ) ] = ( v ^ 2 + 6 v + 8 ) * ( 2 v - 6 ) / [ ( v ^ 2 + v -12 ) * ( v + 2 ) ] = ( 2 v * v ^ 2 + 2 v * 6 ...

**algebra**

( 8 b ^ 3 - 6 ) / ( 2 b - 1 ) = 4 b ^ 2 + 2 b + 1 - 5 / ( 2 b - 1 )

**MATH**

20,000 = 2 * 10 ^ 4 0.24 = 2.4 * 10 ^ - 2 20,000 * 0.024 = 2 * 10 ^ 4 * 2.4 * 10 ^ - 2 = 2 * 2.4 * 10 ^ 4 * 10 ^ - 2 = 4.8 * 10 ^ 4 * 10 ^ - 2 = 4.8 * 10 ^ [ 4 + ( - 2 ) ] = 4.8 * 10 ^ ( 4 - 2 ) = 4.8 * 10 ^ 2

**math**

1000 = 10 ^ 3 8000 = 8 * 10 ^ 3 3.25 * 10 ^ - 22 * 8 * 10 ^ 3 = 3.25 * 8 * 10 ^ - 22 * 10 ^ 3 = 26 * 10 ^ - 22 * 10 ^ 3 = 26 * 10 ^ ( - 22 + 3 ) = 26 * 10 ^ ( - 19 ) = 2.6 * 10 * 10 ^ ( - 19 ) = 2.6 * 10 ^ 1 * 10 ^ ( - 19 ) = 2.6 * 10 ^ ( - 19 + 1 ) = 2.6 * 10 ^ - 18

**algebra**

5 c ^ 2 - 24 c d - 5 d ^ 2 Rewrite - 24 c d as - 25 c d + c d Now: 5 c ^ 2 - 24 c d - 5 d ^ 2 = 5 c ^ 2 - 25 c d + c d - 5 d ^ 2 = 5 c ^ 2 + c d - 25 c d - 5 d ^ 2 = 5 c ^ 2 + c d - ( 25 c d + 5 d ^ 2 ) = c ( 5 c + d ) - 5 d ( 5 c + d ) = ( 5 c + d ) ( c - 5 d ) Your solution ...

**trigonometry**

cos x = 4 / 5 sin x = ±? ( 1 - sin^2 x ) The angles which lie between 0° and 90° are lie in the first quadrant. In the first quadrant sin x is positive so: sin x = ? ( 1 - sin^2 x ) sin x = ? ( 1 - sin^2 x ) = sin x = ? [ 1 - ( 4 / 5 ) ^ 2 ] = ? [ 1 - 16 / 25...

**math**

A = Present age of A B = Present age of B Five years ago person A was A - 5 yrs old. Person B was B - 5 yrs old. Five years ago, A was three times as old as B mean: A - 5 = 3 ( B - 5 ) Ten years later person A shal be: A - 5 + 10 = A + 5 yrs old Person B shal be: B - 5 + 10 = ...

**Math**

- sin x = cos x Divide both sides by - cos x - sin x / - cos x = cos x / - cos x tan x = - 1 Solution: x = pi * n - pi / 4 If n = 1 then: x = pi * n - pi / 4 = pi * 1 - pi / 4 = pi - pi / 4 = 4 pi / 4 - pi / 4 = 3 pi / 4 If n = 2 then: x = pi * n - pi / 4 = pi * 2 - pi / 4 = 2...

**Hard Pre-Algrebra question**

( 2 1 / 2 ) / ( 1 / 8 ) = 2.5 / 0.125 = 20 ( 2 1 / 8 ) / ( 1 / 8 ) = 2.125 / 0.125 = 17 1 / ( 1 / 8 ) = 1 / 0.125 = 8 20 * 17 * 8 = 2720 cubes OR Volume of a right rectangular prism: V = 2 1/2 * 2 1/8 * 1 = 2.5 * 2.125 * 1 = 5.3125 in ^ 3 Volume of a cube: V = ( 1 / 8 ) ^ 3 = ...

**word problem, please help**

The two-point form of a straight line passing through the points ( x1, y1 ) and ( x2 , y2 ) is given by: y ? y1 = ( y2 ? y1 ) * ( x ? x 1 ) / ( x2 ? x1 ) Ini this case: x1 = 1994 , x2 = 1996 y1 = 6400 , y2 = 6800 So: y ? y1 = ( y2 ? y1 ) * ( x ? x 1 ) / ( x2 ? x1 ) y ? 6400...

**Fundamentals Of Math**

a = first piece b = second piece One piece is 10 cm longer than the other mean: b = a + 10 a + b = 60 a + a + 10 = 60 2 a + 10 = 60 Subtract 10 to both sides 2 a + 10 - 10 = 60 - 10 2 a = 50 Divide both sides by 2 a = 50 / 2 = 25 cm b = a + 10 b = 25 + 10 = 35 cm

**Algebra 1**

The domain of this function is the set of values you may choose for h , the independent variable. A number of horses must be a nonnegative integer The domain is the set of nonnegative integers: 0, 1, 2, 3, 4, 5, 6... The range of this function is the set of values you will ...

**Algebra 2**

S ? = ? ? = a * r ^ n =? a? ? ( 1 ??– ?r ) n=1 In this case a = 2 , infinite sum = 10? so: S ? = 10 = a? ? ( 1 ??– ?r ) 10 = 2? ? ( 1 ??– ?r ) Multiply both sides by 1 - r 10 * ( 1 ??– ?r ) = 2? 10 * 1 ??– ?10 * r = 2? 10 - 10 r = 2 Subtract 10 to both...

**math**

a triangular prism

**Math**

In google type: math limit calculator online When you see list of results click on: Limit Calculator - eMathHelp When page be open in rectangle type you funcktion and click option CALCULATE You will see solution step-bystep By the way square root is write sqrt not just root. ...

**math**

If it is an isosceles triangle the two base angles will be equal. Let the base angle be a, then the vertex angle will be: 180° - 2 a According to the condition: Top vertex is twice the of the sum of the base angle: 180° - 2 a = 2 ( a + a ) 180° - 2 a = 2 * 2a 180&...

**Mathematics**

Did you ever heard about google? Paste your question in google and you will find couple proves.

**Pre-cal**

a = first number b = second number b = 2 a - 5 b + a ^ 2 = 115 2 a - 5 + a ^ 2 = 115 - 5 + a ^ 2 + 2 a = 115 Subtract 115 to both sides - 5 + a ^ 2 + 2 a - 115 = 115 - 115 - 5 + a ^ 2 + 2 a - 115 = 0 Try to slove this equation. The solutions are : a = - 12 and a = 10 - 12 isn...

**MATH HELP! CHECK MY ANSWER ASAP!**

1. V = l w h Divide both sides by l w V / l w = h 2. x = y + z Subtract y to both sides x - y = y + z - y x - y = z 3. r t = d Divide both sides by t r = d / t r = 7.5 / 1.5 = 5 mph

**m240**

If -2x3 mean: - 2 x^3 your answer is correct.

**m240**

Correct answer.

**math**

t = total practice time s = shooting practice time d = dribbling practice time s = ( 7 / 10 ) t = 0.7 t d = t - s = t - 0.7 t = 0.3 t d = 18 min 0.3 t = 18 Divide both sides by 0.3 t = 18 / 0.3 = 60 min s = 0.7 t = 0.7 * 60 = 42 min

**math**

L1 = Length of the first rectangle W1 = Width of the first rectangle A1 = Area of the first rectangle L2 = Length of the second rectangle W2 = Width of the second rectangle A1 = Area of the second rectangle L1 = 2 W1 A1 = L1 * W1 = 2 W1 * W1 = 2 W1 ^ 2 L2 = L1 + 3 = 2 W1 + 3 ...

**Algebra 1**

1. ( a + b ) ^ 2 = a ^ 2 + 2 a * b + b ^ 2 so ( 3 ?6 + 5 ?10 ) ^ 2 = ( 3 ?6 ) ^ 2 + 2 * 3 ?6 * 5 ?10 + ( 5 ?10 ) ^ 2 ( 3 ?6 + 5 ?10 ) ^ 2 - 286 + 60 ?15 = ( 3 ?6 ) ^ 2 + 2 * 3 ?6 * 5 ?10 + ( 5 ?10 ) ^ 2 - 286 + 60 ?15 = 3 ^ 2 * 6 + 6 * ?6 * 5 ?10 + 5 ^ 2 * 10 - 286 + 60 ?15 = ...

**Math**

a = numbers of adults s = number of students 120 people attended the baseball game mean: a + s = 120 Adults cost $6 and students cost $4 to attend the game. The game raised $600 from the attendance mean: a * &6 + s * $4 = $600 OR 6 a + 4 s = 600 Now you must solwe system: a + ...

**HELP MATH**

Let x be the amount of money he has. Let m be price of one mango. Let o be price of one orange. Suppose he can just buy n of each fruit. Then: n * m + n * o = x You know 20 mangoes cost x so m = x / 20 likewise o = x / 30 So you have: n * m + n * o = x n * x / 20 + n * x / 30...

**D S S LIMAWA MINNA NIGER STATE**

mass = m = 20 g = 20 / 1000 = 0.02 kg speed = v = 150m/s The workdone to stop bullet must be equal to its kinetic energy: W = m v ^ 2 / 2 W = 0.02 * 150 ^ 2 / 2 = 0.02 * 22500 / 2 = 450 / 2 = 225 J 225 Joules

**Math**

A A C

**Math**

1. 40% = 40 / 100 = 0.4 85 / 0.4 = 212.5 ANSWER A 2. 5% = 5 / 100 = 0.05 0.05 * 1250 = 62.5 Answer A 3. 6.25% = 6.25 / 100 = 0.0625 0.0625 * 249.99 = 15.624375 15.624375 + 249.99 = 265.614375 OR Price of a desk = 100% Tax rate = 6.25% Total price = 100% + 6.25% = 106.25% = 106...

**math**

1 - 1 / 3 = 3 / 3 - 1 / 3 = 2 / 3 2 / 3 * 12 = 24 / 3 = $8

**math**

If you think about triangular numbers then: xn = n ( n + 1 ) / 2 n = 1 x1 = 1 * ( 1 + 1 ) / 2 = 1 * 2 / 2 = 2 / 2 = 1 1 is less than 10. n = 2 x2 = 2 * ( 2 + 1 ) / 2 = 2 * 3 / 2 = 6 / 2 = 3 3 is less than 10. n = 3 x3 = 3 * ( 3 + 1 ) / 2 = 3 * 4 / 2 = 12 / 2 = 6 6 is less than...

**Algebra**

a1 = 25 an = a1 + ( n- 1 ) d a20 = a1 + ( 20 - 1 ) d 500 = 25 + 19 d Subtract 25 to both sides 500 - 25 = 25 + 19 d - 25 475 = 19 d Divide both sides by 19 475 / 19 = d 25 = d d = 25

**Math**

If you think about this question: Winnie wrote the following riddle: I am a number between 60 and 100. My ones digit is two less than my tens digit. I am a prime number. Part A What number does Winnie’s riddle describe? Explain. Part B Winnie’s friend Marco guessed ...

**MATH**

All answers is correct.

**Algebra 2**

Multiply first equation by ? 1 The result: 2 x - 2 y - 3 z = 0 Add the result to the second equation 2 x - 2 y - 3 z = 0 + - 2 x - y + z = - 3 _______________ 0 - 3 y - 2 z = - 3 - 3 y - 2 z = - 3 Add the first equation to the third equation - 2 x + 2 y + 3 z = 0 + 2 x + 3 y...

**Math**

W = L - 22 A = L ( L - 22 ) L = 39 in A = L ( L - 22 ) = 39 ( 39 - 22 ) = 39 * 17 = 663 in ^ 2

**maths(PLEASE HELP!)**

LCD = 12 1 / 3 = 1 * 4 / 3 * 4 = 4 / 12 3 / 4 = 3 * 3 / 4 * 3 = 9 / 12 5 / 12 = 5 / 12 1 / 2 = 1 * 6 / 2 * 6 = 6 / 12 5 / 6 = 5 * 2 / 6 * 2 = 10 / 12

**calculus**

a L = ? [ sqrt 1 + ( y´ )^ 2 ] dx b In this case: y´= 3 * 5 * x ^ 2 + 9 = 15 x ^ 2 + 9 1 + ( y´ )^ 2 = 1 + ( 15 x ^ 2 + 9 ) ^ 2 a = - 3 b = 1 f(x) = sqroot [ 1 + ( 15 x ^ 2 + 9 ) ^ 2 ]

**math**

Ask Pirates of the Caribbean.

**maths**

Profit of 10% = 100% + 10% = 110% Loss of 10% = 100% - 10% = 90% Let selling price of each table be x Total selling price = 2 x Total cost price = 100 x /110 + 100 x / 90 = 9 * 100 x / ( 11 * 90 ) + 100 * 11 x / ( 90 * 11 ) = 900 x / 990 + 1100 x / 990 = 2000 x / 990 = 10 * ...

**Math help plz?!!**

arcsin(0.89) = 1.09734517 radians arcsin(0.89)= 62.87325° arcsin(0.89)= 62.87° to the nearest hundredth of a degree

**math**

t = tulips r = roses c = carnations For every 10 tulips, there are 4 roses and 6 carnation mean: r = ( 4 / 10 ) t = 0.4 t c = ( 6 / 10 ) t = 0.6 t t + r + c = 100 t + 0.4 t + 0.6 t = 100 2 t = 100 Divide both sides by 2 t = 100 / 2 = 50 tulips r = 0.4 * 50 = 20 roses c = 0.6...