Tuesday
May 31, 2016

Posts by Bosnian

Total # Posts: 2,125

Math 10
1 yd = 91.44 cm 5 yd = 5 * 91.44 = 457.2 cm 457.2 cm / 50 cm = 9.144 = 9 + 0.144 pieces 9 pieces + 0.144 * 50 cm = 9 pieces + 7.2 cm
January 5, 2016

Math
b ) ( 2 / 5 ) ^ 3 = 8 / 125
January 5, 2016

Math
If two polygons are similar, the ratio of their areas is equal to the square of the ratio of their corresponding sides. If two polygons are similar, the ratio of their volumes is equal to the cube of the ratio of their corresponding sides. a) ( 1 / 4 ) ^ 2 = 1 / 16 b ) ( 2 / 5...
January 5, 2016

Maths
As = Area of the smaller triangle = 28 square Al = Area of the larger triangle In two similar triangles, the ratio of their areas is the square of the ratio of their sides. As = Al * ( 2 / 5 ) ^ 2 As = Al * 4 / 25 As = 4 Al / 25 Multiply both sides by 25 25 As = 4 Al Divide ...
January 4, 2016

Algebra! Errr, whatever it is.
j = r b Divide both sides by b j / b = r r = j / b Answer d M = 300 J / P Multiply both sides by P P M = 300 J Divide both sides by 300 P M / 300 = J J = P M / 300 Answer d
January 4, 2016

Math
P2 = second pile
December 23, 2015

Math
P1 = first pile P3 = second pile P3 = third pile The first has 5 more books than the 2nd pile. This mean : P1 = P2 + 5 The number of books in the second pile is twice the number of books in the third pile. This mean : P2 = 2 P3 So if : P2 = 2 P3 and P1 = P2 + 5 then : P1 = P2...
December 23, 2015

Math
Type mistake. y = - 2 x - 12 = - 2 * ( - 8 ) - 12 = 16 - 12 = 4
December 18, 2015

Math
y = - 2 x - 12 = - 2 * ( - 8 ) - 2 = 16 - 12 = 4
December 18, 2015

Math
3 x + 4 ( x - 6 ) - 3 ( x - 7 ) 3 x + 4 * x + 4 * ( - 6 ) - 3 * x - 3 * ( - 7 ) = 3 x + 4 x - 24 - 3 x + 21 = 4 x - 3 Answer B
December 18, 2015

Math
- 6 - 7 ( c + 10 ) = - 6 - 7 * c - 7 * 10 = - 6 - 7 c - 70 = - 76 - 7 c Answer B
December 18, 2015

Maths plz help
x + y = 5 Possible combinations : x = 1 , y = 4 x = 2 , y = 3 x = 3 , y = 2 x = 4 , y = 1 x = 1 , y = 4 x ^ x + y ^ y = 31 1 ^ 2 + 2 ^ 2 = 31 1 + 4 = 31 Incorrect. x = 2 , y = 3 x ^ x + y ^ y = 31 2 ^ 2 + 3 ^ 3 = 31 4 + 27 = 31 Correct. x = 3 , y = 2 x ^ x + y ^ y = 31 3 ^ 3...
December 18, 2015

math
C = Present Chase's age R = Present Rosa's age Chase is 34 years younger than Rosa. This mean : C = R - 34 8 years ago, Rosa's was R - 8 yrs , Chase was C - 8 yrs 8 years ago, Rosa's age was 3 times Chase's age. This mean : R - 8 = = 3 ( C - 8) R - 8 = 3 * ...
December 18, 2015

Math
a = apples o = oranges 1 week : a + o = 108 2 week : 5 a + 3 o = 452 Now you must solve system of 2 equations with 2 unknown : a + o = 108 5 a + 3 o = 452 The method of substitution: a + o = 108 Subtract o to both sides a + o - o = 108 - o a = 108 - o 5 a + 3 o = 452 5 * ( 108...
December 18, 2015

math
Convert the numbers in decimal form. 2 / 3 = 0.6666 65 % = 65 / 100 = 0.65 7 / 10 = 0.7 Order : 0.64 , 65 % , 2 / 3 , 7 / 10
December 18, 2015

Math
My type mistake. s = ( 100 + 250 + 275 ) / 2 = 625 / 2 = 312.25 m
December 11, 2015

Math
Heron's Formula for the area of a triangle : A = sqrootÿ[ s ( s - a ) ( s - b ) ( s - c ) ] s is half the perimeter . s = ( a + b + c ) / 2 a = ( 100 + 250 + 275 ) / 2 = 625 / 2 = 312.25 m A = sqrootÿ[ s ( s - a ) ( s - b ) ( s - c ) ] A = sqrootÿ[ 312.25 ( ...
December 11, 2015

Algebra
x = - 2 / 3 - 6 x + 7 y = 11 - 6 * ( - 2 / 3 ) + 7 y = 11 12 / 3 + 7 y = 11 4 + 7 y = 11 Subtract 4 to both sides 4 + 7 y - 4 = 11 - 4 7 y = 7 Divide both sides by 7 y = 1 Coordinate x = - 2 / 3 , y = 1 OR ( - 2 / 3 , 1 )
December 9, 2015

Math
16 / 36 = 4 * 4 / ( 4 * 9 ) = 4 / 9
December 9, 2015

Mathxxx!!!
1. 4 x + 3 = 2 ( 2 x + 9 ) 5. a. 7 x - 12 = 8 x + 29 - x 7 x - 12 = 7 x + 29 Incorrect No solutions b. - 4 + 5 x = 2 ( 3 x - 4 ) - 4 + 5 x = 2 * 3 x - 2 * 4 - 4 + 5 x = 6 x - 8 Subtract 5 x to both sides - 4 + 5 x - 5 x = 6 x - 8 - 5 x - 4 = x - 8 Add 8 to both sides - 4 + 8...
December 8, 2015

math
f ( 17 ) = 0.01 ( 2 ) ^ x = 0.01 ( 2 ) ^ 17 = 0.01 * 131072 = 1310.72 f ( 10 ) = 0.01 ( 2 ) ^ x = 0.01 ( 2 ) ^ 10 = 0.01 * 1024 = 10.24 The average rate of change : [ f ( 17 ) - f ( 10 ) ] / ( 17 - 10 ) = [ f ( 17 ) - f ( 10 ) ] / 7 = ( 1310.72 - 10.24 ) / 7 = 1300.48 / 7 = ...
December 8, 2015

Math
Straight line equations: y = mx + b m = slope b = y-intercept ( Point on the graph where x is zero ) Difference between y coordinates is constant = 15 29 - 14 = 15 44 - 29 = 15 59 - 44 = 15 Slope = 15 y-intercept = y coordinate when x = 0 y-intercept = 14 So : m = 15 b = 14 y...
December 8, 2015

Math
You can write : y = ( x - 1896 ) / 150 like : P / Q = ( x - 1896 ) / 150
December 8, 2015

Math
If the ratio is a linear function then : Two point equation of straight line : y = y1 + [ ( y2 - y1 ) / ( x2 - x1 ) ] * ( x - x1 ) In this case : x1 = 1996 y1 = 2 / 3 x2 = 2001 y2 = 7 / 10 y = y1 + [ ( y2 - y1 ) / ( x2 - x1 ) ] * ( x - x1 ) y = 2 / 3 + [ ( 7 / 10 - 2 / 3...
December 8, 2015

math
60 percent = 60 % = 60 / 100 = 0.6 0.6 * 30 = 18 18 questions
December 8, 2015

Algebra
My misprint. 1.2912 * 100 % = 129.12 %
December 3, 2015

Algebra
412.99 / 319.85 = 1.2912 1.2912 * 100 = 129.12 % 129.12 % - 100 % = 29.12 % 29 % To the nearest whole percent.
December 3, 2015

maths
Reinny In w o l f r a m a l p h a . com type: solve ( x + y ) / 2 = sqroot ( x * y ) + 2 , 2 / ( 1 / x + 1 / y ) = x / 5 The solutions are : 9 and 1
December 1, 2015

Math
Not at all. highest concentration = infinity as x tends towards 0.
November 30, 2015

Math
The question does not make sense. a t / t ^ 2 = 3 t / t ^ 2 = 3 t / ( t * t ) = 3 / t a t / t ^ 2 + b = 3 t / t ^ 2 + 1 = 3 / t + 1 Tends to infinity as x tends towards 0.
November 30, 2015

6 grade Math
241.5 / 12.5 = 193.2 / x Multiply both sides by 12.5 241.5 * 12.5 / 12.5 = 193.2 * 12.5 / x 241.5 = 2415 / x Multiply both sides by x 241.5 * x = 2415 * x / x 241. 5 x = 2415 Divide both sides by 241.5 2415.5 x / 241.5 = 2415 / 241.5 x = 10 cm ^ 3 OR 12.5 / 241.5 = 0....
November 30, 2015

math
A = Area r = radius d = diameter A = r ^ 2 pi OR r = d / 2 A = r ^ 2 pi = ( d / 2 ) ^ 2 * pi = ( d ^ 2 / 4 ) * pi = d ^ 2 pi / 4
November 30, 2015

Solving Trig Equations
Trigonometric identity: sin ( - x ) = - sin x On interval [ 0 , pi ] [ 0 , 180 ° ] you have 2 angles with sin x = sqroot ( 3 ) / 2 x = pi / 3 = 60 ° and x = 2 pi / 3 = 120 ° So if sin ( - x ) = sin x on interval [ - pi , 0 ] [ - 180 ° , 0 ] you have 2 angles ...
November 27, 2015

Algebra 2
sqrt ( - 28 ) = sqrt ( - 4 * 7 ) = sqrt ( - 1 * 4 * 7 ) = sqrt ( - 1 ) * sqrt ( 4 ) * sqrt ( 7 ) = i * 2 * sqrt ( 7 ) = 2 i sqrt ( 7 )
November 27, 2015

algebra
Yes. 8 x ^ 2 + 3 ( x ^ 2 + y ) = 8 x ^ 2 + 3 * x ^ 2 + 3 * y = 8 x ^ 2 + 3 x ^ 2 + 3 y = 11 x ^ 2 + 3 y 7 x ^ 2 + 7 y + 4 x ^ 2 - 4 y = 7 x ^ 2 + 4 x ^ 2 + 7 y - 4 y = 11 x ^ 2 + 3 y
November 27, 2015

Math Algebra
2 % = 2 / 100 = 0.02 2 % of 5 = 0.02 * 5 = 0.1 3 % = 3 / 100 = 0.03 3 % of 12 = 0.03 * 12 = 0.36 The new fraction: ( 5 - 0.1 ) / ( 12 + 0.36 ) = 4.9 / 12.36 Multiply numerator andd enominator by 100 490 / 1236 = 2 * 5 * 7 * 7 / ( 2 * 2 * 3 * 103 ) = 5 * 7 * 7 / ( 2 * 3 * 103...
November 27, 2015

math
W = Wide H = height D = Diagonal W / H = 16 / 9 20 / H = 16 / 9 Multiply both sides by 9 20 * 9 / H = 16 * 9 / 9 180 / H = 16 Multiply both sides by H 180 * H / H = 16 * H 180 = 16 H Divide both sides by 16 180 / 16 = 16 H / 16 11.25 = H H = 11.25 in Pythagorean theorem : D = ...
November 27, 2015

Math
25 / ( pi + 6 ) = 25 / ( 3.1415926535 + 6 ) = 25 / 9.1415926535 = 2.734753226 approx. = 2.73 What is problem?
November 26, 2015

Math
A = first angle B = second angle In the right triangel summ of angles = 180 ° If the sum of two acute angles in a right triangle is 90 degrees this mean : A + B = 180 ° - 90 ° = 90 ° A + B = 90 ° Twice the first is 40 degrees more than thrice the second. ...
November 26, 2015

Math
The length of the rectangle 5cm more than twice the width. This mean : L = 5 + 2 W P = 2 W + 2 L = 2 ( W + L ) 70 = 2 ( W + L ) 70 = 2 ( W + 5 + 2W ) 70 = 2 ( 3 W + 5 ) Divide both sides by 2 70 / 2 = 2 ( 3 W + 5 ) / 2 35 = 3 W + 5 Subtract 5 to both sides 35 - 5 = 3 W + 5 - 5...
November 26, 2015

Mathematics
If " n " is an integer, then n, n + 2, n + 4 and n + 6 will be even consecutive integers. Four times the greatest is 36 more than more than the sum of the other three. This mean : 4 ( n + 6 ) = 36 + ( n + n + 2 + n + 4 ) 4 ( n + 6 ) = 36 + ( n + n + 2 + n + 4 ) 4 * n...
November 26, 2015

Math
If you think on circumference of a circle. C = d * pi pi = 22 / 7 C = d * pi C = 2.1 * ( 22 / 7 ) = 2.1 * 22 / 7 = 46.2 / 7 = 6.6
November 26, 2015

MATH
a. - 3 y / - 2 = 3 y / 2 = ( 3 / 2 ) y So : x = 9 - 3 y / - 2 = 9 + ( 3 / 2 ) y x = 9 + ( 3 / 2 ) y Subtract ( 3 / 2 ) y to both sides x - ( 3 / 2 ) y = 9 + ( 3 / 2 ) y - ( 3 / 2 ) y x - ( 3 / 2 ) y = 9 When you compare with : a x + b y = c you can see : a = 1 b = - ( 3 / 2 ) ...
November 26, 2015

Maths
Whole class have 10 / 10 students. 9 / 10 student was absen. 3 students were present. 3 students = 10 / 10 - 9 / 10 = 1 / 10 1 / 10 = 3 students Solve this.
November 26, 2015

Pre-Calculus HELP!!
The twelfth day of the year mean t = 12 Now you must put t = 12 into your equation. ( 2 pi / 365 ) t - 1.25 ) = ( 2 * 3.14159216535 / 365 ) * 12 - 1.25 = ( 6.283185307 / 365 ) * 12 - 1.25 = 0.01721420632 * 12 - 1.25 = 0.20657047584 - 1.25 = - 1.04342952416 Now take calculator...
November 26, 2015

math
1 1/3 = 1 + 1 / 3 = 3 / 3 + 1 / 3 = 4 / 3 ( 1 1/3 ) / ( 2 / 5 ) = ( 4 / 3 ) / ( 2 / 5 ) = ( 4 * 5 ) / ( 3 * 2 ) = 20 / 6 = ( 2 * 10 ) / ( 2 * 3 ) = 10 / 3 = ( 9 + 1 ) / 3 = 9 / 3 + 1 / 3 = 3 + 1 / 3 = 3 1/3 cantrs
November 24, 2015

Math
Question 8 x / 70 = 50 / 100 Multiply both sides by 100 100 x / 70 = 50 Multply both sides by 70 100 x = 50 * 70 100 x = 3500 Divide both sides by 100 x = 3500 / 100 = 35 x / 50 = 70 / 100 Multiply both sides by 100 100 x / 50 = 70 Multply both sides by 50 100 x = 70 * 50 100 ...
November 23, 2015

math
18 / 2 = 9 54 / 6 = 9 Answer c
November 23, 2015

math
The average marks of 14 students was 71. This mean : ( x1 + x2 + x3 + ... x14 ) / 14 = 71 ( x1 + x2 + x3 + ... x14 ) / 14 = 71 Multiply both sides by 14 x1 + x2 + x3 + ... x14 = 71 * 14 x1 + x2 + x3 + ... x14 = 994 = Total marks On this marks you must add 56 - 42 = 14 and ...
November 22, 2015

Geometry
Area of a triangle: A = b * h / 2 A triangle base is 3 inches more than it's height. This mean : b = h + 3 A = b * h / 2 = ( h + 3 ) * h / 2 = 35 in ^ 2 ( h * h + 3 * h ) / 2 = 35 ( h ^ 2 + 3 h ) / 2 = 35 Multiply both sides by 2 h ^ 2 + 3 h = 70 Subtract 70 to both sides ...
November 21, 2015

Algebra (help please!)
Even integers differ by two. If 3s is even, the even just below 3s is (3s -2) and the even just above 3s would be (3s+2) so you must find product : ( 3s - 2 ) ( 3 s ) ( 3 s + 2 ) = ( 3 s * 3 s - 2 * 3 s ) ( 3 s + 2 ) = ( 9 s ^ 2 - 6 s ) ( 3 s + 2 ) = 9 s ^ 2 * 3 s + 9 s ^ 2 * ...
November 11, 2015

Mathematics
Paste your question in google. You will se couple answers.
November 10, 2015

Math
3 x + 4 y = 12 Subtract 3 x to both sides 3 x + 4 y - 3 x = 12 - 3 x 4 y = 12 - 3 x 4 y = - 3 x + 12 Divide both sides by 4 4 y / 4 = - 3 x / 4 + 12 / 4 y = - ( 3 / 4 ) x + 3
November 10, 2015

Math
m = ( y1 - y2 ) / ( x1 - x2 ) In this case : x1 = 3 , y1 = 4 x2 = 6 , y2 = - 2 m = ( y1 - y2 ) / ( x1 - x2 ) = [ 4 - ( - 2 ) ] / ( 3 - 6 ) = ( 4 + 2 ) / - 3 = 6 / - 3 = - 2
November 10, 2015

Math
Linear eguation in Two-point form : y - y1 = [ ( y2 - y1 ) / ( x2 - x1 ) ] * ( x - x1 ) In this case : x1 = 3 , y1 = 4 x2 = 6 , y2 = - 2 y - y1 = [ ( y2 - y1 ) / ( x2 - x1 ) ] * ( x - x1 ) y - 4 = [ ( -2 - 4 ) / ( 6 - 3 ) ] * ( x - 3 ) y - 4 = [ - 6 / 3 ] * ( x - 3 ) y - 4...
November 10, 2015

Math
He read 60 - 4 = 56 pages 1 week = 7 days 56 pages divide by 7 days 56 / 7 = 8 pages per day
November 10, 2015

math
1 mile = 5,280 ft Multiply by 5,280
November 7, 2015

Math
Approximately correct answer. cos B = ( a ^ 2 + c ^ 2 - b ^ 2 ) / ( 2 a c ) = ( 9 ^ 2 + 11 ^ 2 - 3 ^ 2 ) / ( 2 * 9 * 11 ) = ( 81 + 121 - 9 ) / 198 = 193 / 198 = 0.97474747 B = cos ^ - 1 ( 0.97474747 ) B = 12,90352 ° B = 12 ° 54 ' 12.672 " B = 12 ° 54 '...
November 6, 2015

Math
Copy your question in google. When you see list of results click on : Jupiter V Superstars III - Elliott Tech, LLC You will see answer with detail explanation.
November 3, 2015

math help connections academy HHEELLPP
19 = h / 3 - 8 Add 8 to both sides 19 + 8 = h / 3 - 8 + 8 27 = h / 3 Multiply both sides by 3 27 * 3 = h 81 = h h = 81
November 3, 2015

Math
Correct 75 kg 568 g = 75.568 kg 8 kg 959 g = 8.959 kg 75.568 - 8.959 = 66.609 66.609 kg = 66 kg 609 g
November 3, 2015

mathematics
a4 = 37 a6 = a4 + 12 a6 = 37 + 12 = 49 In an arithmetic progression nth term of the sequence (an) is given by: an = a1 + ( n - 1 ) d so: a4 = a1 + ( 4 - 1 ) d = 37 a1 + 3 d = 37 a6 = a1 + ( 6 - 1 ) d = 49 a1 + 5 d = 49 Now you must solve system of two equations with two ...
November 3, 2015

Algebra
In this case : x1 = - 6 , y1 = 4 x2 = 3 , y2 = - 5 Equation of a straight line from 2 points : y = y1 + [ ( y2 - y1 ) / ( x2 - x1 ) ] ( x - x1 ) y = 4 + [ ( - 5 - 4 ) / ( 3 - ( - 6 ) ) ] ( x - ( - 6 ) ) y = 4 + [ ( - 9 ) / ( 3 + 6 ] ( x + 6) y = 4 + [ ( - 9 ) / 9 ] ( x + 6) y...
October 31, 2015

Maths
1 m = 1000 mm 465 mm = 465 / 1000 = 0.465 m 320 mm = 320 / 1000 = 0.320 m 0.465 * 0. 320 = 0.1488 metre squared 0.1488 * 25 = 3.72 $ 3.72
October 31, 2015

8th grade algebra
Correct result. You also find result like that: 3 x 10 ^ - 2 = 3 / 10 ^ 2 = 0.03 6.2 x 10 ^ 1 = 6.2 x 10 = 62 3 x 10 ^ - 2 - 6.2 x 10 ^ 1 = 0.03 - 62 = - 61.97 = - 6.197 * 10 ^ 1
October 29, 2015

Math
- x ^ 4 + 4 x ^ 4 = 3 x ^ 4 (dy÷dx) f(x)= 3 limit as h -> 0 [ ( x + h ) ^ 4 - x ^ 4 ] / h = 3 limit as h -> 0 [ ( x ^ 4 + 4 x ^ 3 h + 6 x ^ 2 h ^ 2 + 4 x h ^ 3 + h ^ 4 ) - x ^ 4 ] / h = 3 limit as h -> 0 ( 4 x ^ 3 h + 6 x ^ 2 h ^ 2 + 4 x h ^ 3 + h ^ 4 ) / h = 3...
October 28, 2015

precalculus
P.S. If you do not know how to write this value go to: w o l f r a m a l p h a . c o m When page be open in rectangle type : sin ( 3 pi / 8 ) then in rectangle click option =
October 28, 2015

precalculus
Remark : _________________________________ pi / 8 = 22.5° = 22° 30' 3 pi / 8 = 4 pi / 8 - pi / 8 = pi / 2 - pi / 8 3 pi / 8 = 90° - 22° 30' = 67° 30' pi / 4 = 45° sin ( pi / 4 ) = sqroot ( 2 ) / 2 cos ( pi / 4 ) = sqroot ( 2 ) / 2 pi / 2 = ...
October 28, 2015

Algebra
Nuber of 18 yrs old students = x1 Nuber of 19 yrs old students = x2 Nuber of 20 yrs old students = x3 The number of 18 year old was six more than the combined number of 19 and 20 year olds. This mean : x1 = x2 + x3 + 6 x1 = x2 + x3 + 6 Subtract 6 to both sides x1 - 6 = x2 + x3...
October 27, 2015

Math
All real numbers except x = 0 , because for x = 0 , 1 / x -> + OR - infinity. Domain looks like this in interval notation : ( - infinity , 0 ) U ( 0 , infinity )
October 24, 2015

Math
65 = 5 * 13 390 = 5 * 13 * 6 65 : 390 = 5 * 13 : ( 5 * 13 * 6 ) = 1 : 6
October 24, 2015

math
Put t = 12 and s = 9 into equations. 1. 3 ( 3 t + s ) = 3 * ( 3 * 12 + 9 ) = 3 * ( 36 + 9 ) = 3 * 45 = 135 2. 2 s - t = 2 * 9 - 12 = 18 - 12 = 6
October 23, 2015

Math
3 x + 3 ( x - 1 ) <= 18 3 x + 3 x - 3 <= 18 6 x - 3 <= 18 Add 3 to both sides 6 x - 3 + 3 <= 18 + 3 6 x <= 21 Divide both sides by 6 x <= 21 / 6 x <= 3 * 7 / ( 3 * 2 ) x <= 7 / 2
October 20, 2015

MATh
2.8 x = - 9.24 Divide both sides by 2.8 2.8 x / 2.8 = - 9.24 / 2.8 x = - 3.3
October 20, 2015

MATh
- 5 g - 6 g = - 2 - 5 * ( - 2 ) - 6 = 10 - 6 = 4 the sum of 3 coins and c coins = 3 + c = c + 3 x - 2 = 16 Add 2 to both sides x - 2 + 2 = 16 + 2 x = 18 z / - 12 = - 5 Multiply both sides by - 12 z * ( - 12 ) / - 12 = - 5 * - 12 z = 60 x - 8.1 = 5.3 Add 8.1 to both sides x - 8...
October 20, 2015

math
1 - 1 / 5 = 5 / 5 - 1 / 5 = 4 / 5 6 * 4 / 5 = 24 / 5 = $ 4.8 OR 1 / 5 of 6 = 6 / 5 = $ 1.2 $ 6 -$ 1.2 = $ 4.8
October 19, 2015

maths
first number = 7 n second number = 7 n + 7 third number = 7 n + 14 7 n + 7 n + 7 + 7 n + 14 = 777 21 n + 21 = 777 Subtact 21 to both sides 21 n + 21 - 21 = 777 - 21 21 n = 756 Divide both sides by 21 n = 756 / 21 = 36 first number = 7 n = 7 * 36 = 252 second number = 7 n + 7...
October 15, 2015

math
3,600 miles / 40 miles per gallon = 90 gallons 90 * 2.4 $ = 216 $
October 15, 2015

Math
1 yd = 3 ft 1 yd ^ 2 = ( 3 ft ) ^ 2 = 9 ft ^ 2 1 yd ^ 2 / 2 min = 9 / 2 = 4.5 ft ^ 2 / min 3 ft * 30 ft = 90 ft ^ 2 90 ft ^ 2 / ( 4.5 ft ^ 2 / min ) = 20 min
October 14, 2015

Math
1 h = 60 min 40 min = 40 / 60 = 2 * 20 / ( 3 * 20 ) = 2 / 3 h 8 h 40 min = 8 h + 2 / 3 h = 8 * 3 / 3 + 2 / 3 = 24 / 3 - 2 / 3 = 26 / 3 h 3 h = 3 * 3 / 3 = 9 / 3 h Car travel 8 h 40 min. For this time the bus travel = 8 h 40 min + 3 h = 11 h 40 min = 8 h 40 min + 3 h = 26 / 3 h...
October 14, 2015

applications in algebra
A bedroom is 7 feet longer than its width. This mean L = 7 + W A = L * W = 228 ( 7 + W ) * W = 228 7 W + W ^ 2 = 228 W ^ 2 + 7 W = 228 Subtract 228 to both sides W ^ 2 + 7 W - 228 = 228 - 228 W ^ 2 + 7 W - 228 = 0 The solutions are : W = 12 and W = - 19 Width can't be ...
October 11, 2015

Math,english,agric,b/sci,PHE,computer,etc
The sum of two consecutive integers can't be an even number, because the one number is even and the other odd. in this case: a = first number b = second number b = a + 1 a + b = 122 a + a + 1 = 122 2 a + 1 = 122 Subtract 1 to both sides 2 a + 1 - 1 = 122 - 1 2 a = 121 ...
October 11, 2015

Math
No. 5 ^ 2 + 10 ^ 2 - 2 * 5 * 10 cos 50° = 25 + 100 - 100 * cos 50° = 25 + 100 ( 1 - cos 50 ° ) = 25 + 100 * ( 1 - 0.64278761 ) = 25 + 100 * 0.35721239 = 25 + 35.721239 = 60.721239 5 ^ 2 + 10 ^ 2 - 2 * 5 * 10 cos 130° = 25 + 100 - 100 * cos 130° = 25 + 100...
October 11, 2015

Math
166 2/3 % = 166 / 100 + ( 2 / 3 ) / 100= [ 166 + ( 2 / 3 ) ] / 100 = ( 166 * 3 / 3 + 2 / 3 ) / 100 = ( 498 / 3 + 2 / 3 ) / 100 = ( 500 / 3 ) / 100 = 5 / 3 60 / ( 5 / 3 ) = 60 * 3 / 5 = 180 / 5 = 36 Proof : 166 2/3% = 166 / 100 + ( 2 / 3 ) / 100 = 1....
October 9, 2015

Math- HELP
1. 7 / 8 = 0.875 2. 1 1/2 = 1 + 1 / 2 = 1.5 3. 4 3/8 = 4 + 3 / 8 = 4.375 4. 0.4 = 4 / 10 = 2 * 2 / ( 2 * 5 ) = 2 / 5 5. 7.1 = 7 + 0.1 = 7 + 1 / 10 = 7 1/10
October 9, 2015

Math
4 / 5 = 4 * 3 / ( 5 * 3 ) = 12 / 15 - 7 / 15 + ( - 4 / 5 ) = - 7 / 15 - 4 / 5 = - 7 / 15 - 12 / 15 = - 19 / 15
October 8, 2015

Math
Prime numbers 1 - 10 are : 1 , 2 , 3 , 5 and 7 tottal 4 numbers the odds of you getting a prime number = 4 / 10 = 0.4 = 40 %
October 8, 2015

algebra
0.15151515... = 15 / 99 = 3 * 5 / ( 3 * 33 ) = 5 / 33
October 8, 2015

algebra
0.15151515... = 15 / 100 + 15 / 10000 + 15 / 1000000 + 15 / 100000000 + ... = 15 / 100 + 15 / 100 ^ 2 + 15 / 100 ^ 3 + 15 / 100 ^ 4 + ... This is the geometric series : a + a r + a r ^ 2 + a r ^ 3 + a r ^ 4 + ... with a = 15 / 100 and r = 1 / 100 As n goes to infinity the sum ...
October 8, 2015

Integration need help also
In google type : integration calculator online emathhelp when you see list of results click on : Integral Calculator with Steps - eMathHelp When page be open In rectangle type : sinx^2.xdx then clic button CALCULATE You will se solution step - by -step
October 3, 2015

Prove that sin(A+B) need help
In google type : Prove that sin(A+B) When you see list of results click on : Proof of the sum and difference formulas. - The Math Page You will see proof.
October 3, 2015

stats
x1 = 77 x2 = 79 x3 = 95 x4 = 93 averagge of five exam: ( x1 + x2 + x3 + x4 + x5 ) / 5 = 80 ( 77 + 79 + 95 + 93 + x5 ) / 5 = 80 ( 344 + x5 ) / 5 = 80 Multiply both sides by 5 344 + x5 = 80 * 5 344 + x5 = 400 Subtract 344 to both sides x5 = 400 - 344 = 56 Answer: Greater or ...
October 3, 2015

Math
OR if you write : x = number of pencils y = number of pens then x + 1.5 y = 21 x + y = 18
September 30, 2015

Math
x = number of pens y = number of pencils She bought a total of 18 items. x + y = 18 Stella spent 21 $ 1.5$ * x + 1 $ * y = 21 & 1.5 x + 1 * y = 21 1.5 x + y = 21 You must solve system : x + y = 18 1.5 x + y = 21 The solutions aree . x = 6 y = 12 Proof : 6 * 1.5 $ + 12 * 1 $ = ...
September 30, 2015

math
68.9 ft rounded to one decimal place
September 30, 2015

math
1 ft = 12 in 6 ft 4 in = 6 * 12 + 4 = 72 + 4 = 76 in 1 in = 2.54 cm = 2.54 / 100 = 0.0254 m Tall of the basketball player in meters : 76 * 0.0254 = 1.9304 m Tall of the volleyball player in feet : 1.75 / 0.0254 = 68.89763778 ft = 68.9 in rounded to one decimal place
September 30, 2015

Algebra
Tonys age = x Maris age = y Maria is 5 years younger. y = x - 5
September 25, 2015

Algebra 2
( x - y ) ^ 2 = x ^ 2 - 2 x y + y ^ 2 ( b - 8 ) ^ 2 = b ^ 2 - 2 b * 8 + 8 ^ 2 = b ^ 2 - 16 b + 64
September 25, 2015

Algebra 2
Multiply each term in one polynomial by each term in the other polynomial. ( 4 x + 2 y ) ( x - 3 y ) = x * 4 x + x * 2 y - 3 y * 4 x - 3 y * 2 y = 4 x ^ 2 + 2 x y - 12 x y - 6 y ^ 2 = 4 x ^ 2 - 10 x y - 6 y ^ 2
September 25, 2015

Math
7 pizza’s cut into 8 slices. Total 7 * 8 = 56 slices 56 slices / 14 = 4 slices 4 slices of 8 slices in one pizza = 4 / 8 = 1 / 2 OR 7 pizza per 14 students = 7 / 14 = 1 / 2
September 25, 2015

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