Saturday
May 28, 2016

Posts by Bosnian

Total # Posts: 2,125

Algebra
f ( x ) = - x ^ 2 + 5 x + 4 f ( 3 ) = - 3 ^ 2 + 5 * 3 + 4 = - 9 + 15 + 4 = 10 f ( 5 ) = - 5 ^ 2 + 5 * 5 + 4 = - 25 + 25 + 4 = 4 The average rate of change : [ f ( 5 ) - f ( 3 ) ] / ( 5 - 3 ) = ( 10 - 4 ) / ( 5 - 3 ) = 6 / 2 = 3 Answer A
May 24, 2016

Maths (Need Help)
If y^2-1/4y=0 mean : y ^ 2 - ( 1 / 4 ) y = 0 then : Write y ^ 2 like : 4 y ^ 2 / 4 Now : 4 y ^ 2 / 4 - ( 1 / 4 ) y = 0 ( 1 / 4 ) 4 y - ( 1 / 4 ) y = 0 ( 1 / 4 ) ( 4 y ^ 2 - y ) = 0 ( 1 / 4 ) y ( 4 y - 1 ) = 0 Now you must solwe two equations : ( 1 / 4 ) y = 0 and 4 y - 1 = 0...
May 24, 2016

math
Go on : calc101.c o m When page be open click option : derivative then in rectangle Take the derivative of type : sin[cos[x^2]] and click option : DO IT You will see solution step by step.
May 24, 2016

Math
d = Diameter P = Perimeter P = d * pi = 14 * pi 4 P = 4 * 14 * pi = 56 pi = 56 * 3.14159 = 175.92904 in approx. 176 in
May 24, 2016

Math
Now Rony is 16 years old Sister is 16 / 4 = 4 years old After x years Rony will be 16 + x yeras old Sister will be 4 + x years old Now you must solve equation : ( 16 + x ) / ( 4 + x ) = 2 Multiply both sides by 4 + x 16 + x = 2 ( 4 + x ) 16 + x = 8 + 2 x Subtract 8 to both ...
May 24, 2016

Algebra
c = children a = adults 2200 people enter the zoo mean : c + a = 2200 $4,550.00 is collected mean : 1.5 c + 4 a = 4550 Now you must solve system: c + a = 2200 1.5 c + 4 a = 4550 c + a = 2200 Subtract c to both sides c + a - c = 2200 - c a = 2200 - c 1.5 c + 4 a = 4550 1.5 c + ...
May 24, 2016

Algebra
x = 70% alcohol solution y = 30% alcohol solution 120 L of a 45% solution have : 120 * 0.45 = 54 L alcohol Now you must solve system : 0.7 x + 0.3 y = 54 x + y = 120 The solutions are : x = 45 L , y = 75 L Proof : 0.7 * 45 + 0.3 * 75 = 31.5 + 22.5 = 54 L x + y = 45 + 75 = 120 L
May 20, 2016

5th grade math
1 ft = 12 in 60 / 12 = 5 ft
May 18, 2016

Algebra
Correct answer. ( a + b ) ^ 2 = a ^ 2 + 2 a b + b ^ 2 In this case : a = 1 2 a b = 9 2 * 1 * b = 9 2 b = 9 Divide both sides by 2 b = 9 / 2 c = b ^ 2 = ( 9 / 2 ) ^ 2 = 81 / 4 ( x + 9 / 2 ) ^ 2 = x ^ 2 + 9 x + ( 81 / 4 )
May 13, 2016

Maths
y = the width L = the length A = the area of original rectangle A = y * L = 140 y * L = 140 Divide both sides by y L = 140 / y New area : ( y - 2 ) ( L + 3 ) = 136 ( y - 2 ) ( 140 / y + 3 ) = 136 y * 140 / y - 2 * 140 / y + 3 * y - 3 * 2 = 136 140 - 280 / y + 3 y - 6 = 136 - ...
May 12, 2016

Algebra
( 1 / 2 ) ( k - 5 ) = 3 Multiply both sides by 2 k - 5 = 6 Add 5 to both sides k - 5 + 5 = 6 + 5 k = 11 Proof : ( 1 / 2 ) ( k - 5 ) = ( 1 / 2 ) ( 11 - 5 ) = 6 / 2 = 3
May 10, 2016

College Math
x = 3 -inch bolts y = 4 -inch bolts James bought 24 bolts. This mean x + y = 24 36 cents = $ 0.36 42 cents = $ 0.42 Total price = $ 9 This mean : 0.36 x + 0.42 y = 9 Now you must solve system : x + y = 24 0.36 x + 0.42 y = 9 Try.
May 6, 2016

Math
17 85 : 51 = 17 * 5 : ( 17 * 3 ) = 5 : 3
May 5, 2016

Geometry (Help)
12 cm / 4 cm = 3 16 cm / 4 cm = 4 8 cm / 4 cm = 2 3 * 4 * 2 = 24 balls
May 4, 2016

Algebra 1
90 gallons of a 23% salt water = 90 * 23 / 100 = 2070 /100 = 20.7 gallons of salt. x = quantity of salt wather y = quantity of fresh wather Fresh wather have 0 % salt. This mean all salt come on 30 % salt wather. Quantity of salt in 30 % salt wather = 0.3 x 0.3 x = 20.7 Divide...
May 4, 2016

MATH HELP ASAP
In a Geometric Sequence each term is found by multiplying the previous term by a constant. In this case constant = 0.5 Geometric Sequence
May 4, 2016

MATH HELP ASAP
1.6 * 0.5 = 0.8 0.8 * 0.5 = 0.4 0.4 * 0.5 = 0.2 What do you think that is?
May 4, 2016

math
1 3/8 = 1 + 3 / 8 = 8 / 8 + 3 / 8 = 11 / 8 ( 1 3/8 ) / ( 5 / 8 ) = ( 11 / 8 ) / ( 5 / 8 ) = ( 8 * 11 ) / ( 8 * 5 ) = 11 / 5 = 10 / 5 + 1 / 5 = 2 + 1 / 5 = 2 1/5 = 2.2
May 4, 2016

MATH HELP ASAP
If you think on 4,8,12,16,... then : an = 4 n a20 = 4 *20 = 80
May 4, 2016

MATH HELP ASAP
Which expression?
May 4, 2016

algebra
4 * 1 = 4 4 * 2 = 8 4 * 3 = 12 4 * 4 = 16 etc. a. 4n
May 4, 2016

alegbra help asap
2n + 3 2 * 1 + 3 = 2 + 3 = 5 2 * 2 + 3 = 4 + 3 = 7 2 * 3 + 3 = 6 + 3 = 9 2 * 4 + 3 = 8 + 3 = 11 5 , 7 , 9 , 11 Answer c.
May 4, 2016

PLEASE HELP ASAP ALGEBRA
In an Arithmetic Sequence the difference between one term and the next is a constant, so : 3 - 4.5 = - 1.5 4.5 - 6 = - 1.5 6 - 7.5 = - 1.5 The difference is a constant, so : a. arithmetic sequence
May 4, 2016

algebra
The area of a triangle is always half the product of the base and height. In this case the base : b = c + 2 A = b * h / 2 A = ( c + 2 ) * h / 2 The area is ( 2 c ^ 3 + 16 ) so: 2 c ^ 3 + 16 = ( c + 2 ) * h / 2 Multiply both sides by 2 4 c ^ 3 + 32 = ( c + 2 ) * h Divide both ...
May 4, 2016

Math
3 x ^ 2 = 0 Divide both sides by 3 3 x ^ 2 / 3 = 0 / 3 x ^ 2 = 0 x = sqroot ( 0 ) = 0
May 3, 2016

Math
a = apples cost o = orange cost 70 cents = 0.7 $ An orange cost 70 cents less than an apple. This mean : o = a - 0.7 $ Total cost = 41.6 $ 8 a * 10 o = 41.6 8 a + 10 ( a - 0.7 ) = 41.6 8 a + 10 a - 7 = 41.6 18 a - 7 = 41.6 Add 7 to both sides 18 a - 7 + 7 = 41.6 + 7 18 a = 48....
May 3, 2016

algebra 2
2 x + 6 y = 16 Multiply both sides by 2 4 x + 5 y = 11 - 4 x + 12 y = 32 ________________ 4 x - 4 x + 5 y - 12 y = 11 - 32 - 7 y = - 21 Divide both sides by - 7 y = - 21 / - 7 y = 3 Replace value of y in equation : 4 x + 12 y = 32 4 x + 12 * 3 = 32 4 x + 36 = 32 Subtract 36 to...
May 3, 2016

Maths
x = a number x + x / 2 = 6 2 x / 2 + x / 2 = 6 3 x / 2 = 6 Multiply both sides by 2 3 x = 12 Divide both sides by 3 x = 12 / 3 = 4 Proof ; 4 / 2 + 4 = 2 + 4 = 6
April 26, 2016

math
p1 = paper 1 p2 = paper 2 p3 = paper 3 p4 = paper 4 ( a ) The mean of the first three papers Jenny has sat is 72%. ( p1 + p2 + p3 ) / 3 = 72 % Multiply both sides by 3 p1 + p2 + p3 = 72 % * 3 = p1 + p2 + p3 = 216 % After 4 papres mean is : ( p1 + p2 + p3 + p4 ) / 4 If she ...
April 26, 2016

Algebra I DONT KNOW HOW TO DO 3 VARIABLES
x + y + 5 z = 2 4 x - 3 y + 5 z = 3 3 x - 2 y + 5 z = 1 All three equations contain member 5 z Equation ( 1 ) x + y + 5 z = 2 Subtract ( x + y ) to both sides x + y + 5 z - ( x + y ) = 2 -( x + y ) 5 z = 2 - x - y Equation ( 2 ) 4 x - 3 y + 5 z = 3 Subtract ( 4 x - 3 y ) to ...
April 25, 2016

Ratios!!!!
Remark : 1 * ( x - 3 ) : ( 3 x - 2 ) = ( x - 3 ) : ( 3 x - 2 ) 4 / 4 = 1 so : ( 4 / 4 ) * ( x - 3 ) : ( 3 x - 2 ) 4 * ( x - 3 ) : [ 4 * ( 3 x - 2 ) ] = ( 4 x - 12 ) : ( 12 x - 8 ) Question 10 Answers B and D
April 21, 2016

Ratios!!!!
8. A = Abby's part I = Ingrid's part J = John's part There are sixty three candies in the bag. This mean: A + I + J = 63 A / I / J = 2 / 3 / 4 This mean : A / I = 2 / 3 I / J = 3 / 4 so: A / I = 2 / 3 Multiply both sides by I A = 2 I / 3 A = ( 2 / 3 ) I I / J = 3...
April 21, 2016

Math
B = Bill's money S = Sammy's money M = Mary's money J = James's money Sammy has 15 $ more than Billy. S = B + 15 Mary has twice as much as Sammy. M = 2 S = 2 ( B + 15 ) = 2 B + 2 * 15 = 2 B + 30 James has 5 $ less than Mary. J = M - 5 = 2 B + 30 - 5 = 2 B + 25 ...
April 18, 2016

Math
a = First number b = Second number The difference between two numbers is 6. This mean : a - b = 6 Their product is 2016. This mean : a * b = 2016 Now : a - b = 6 Add b to both sides a - b + b = 6 + b a = 6 + b a = b + 6 Replace this value in expression : a * b = 2016 ( b + 6...
April 18, 2016

math
cot x = cos x / sin x sec x = 1 / cos x cot x * sec x = ( cos x / sin x ) * ( 1 / cos x ) = 1 / sin x = csc x
April 18, 2016

Maths
a = the smaller number b = the larger number The product of two natural numbers is 18. This mean : a * b = 18 If one is added to four times the smaller number this is equal to the larger number. This mean : 1 + 4 a = b So : b = 1 + 4 a Replace this value in expression : a * b...
April 18, 2016

Math Trig
Correct answer but you also can write : cos ( 2 u ) = cos ^ 2 ( u ) - sin ^ 2 u In this case : sin ( u ) = 5 / 13 sin ^ 2 ( u ) = ( 5 / 13 ) ^ 2 = 25 / 169 cos ^ 2 ( u ) = 1 - sin ^ 2 ( u ) = 1 - 25 / 169 = 169 / 169 - 25 / 169 = 144 / 169 cos ( 2 u ) = cos ^ 2 ( u ) - sin ^ 2...
April 14, 2016

Math
Correct answer becouse : ( 0.0015 / 0.45 ) * 100 % = 0.003333 * 100 % = 0.3333 %
April 14, 2016

Math
sin theta = + OR - sqroot ( 1 - cos ^ 2 theta ) tan theta = sin theta / cos theta tan theta = + OR - sqroot ( 1 - cos ^ 2 theta ) / cos theta In Quadrant IV tangent are negative so : tan theta = - sqroot ( 1 - cos ^ 2 theata ) / cos theta
April 14, 2016

math
sqrt ( 4 / 32 ) = sqrt [ 4 / ( 4 * 8 ) ] = sqrt ( 1 / 8 ) = sqrt [ 1 / ( 4 * 2 ) ] = sqrt ( 1 ) / [ sqrt ( 4 ) * sqrt ( 2 ) ] = 1 / 2 sqrt ( 2 ) 2 pi sqrt ( 4 / 32 ) = 2 pi * 1 / 2 sqrt ( 2 ) = pi / sqrt ( 2 ) = _________________________________ Remark: sqrt ( 2 ) = 2 ^ ( 1 / ...
April 14, 2016

math
In quadratic equation: a x ^ 2 + b x + c value D = b ^ 2 - 4ac is called the discriminant. When Discriminant is zero we get just one real solution. p x ^ 2 - 12 x + 4 = 0 In this case : a = p , b = - 12 , c = 4 D = b ^ 2 - 4 a c = ( - 12 ) ^ 2 - 4 * p * 4 = 144 - 16 p = 0 Add ...
April 14, 2016

problem solving
S = Susan's age R = Ritas's age Susan is 4 years older than her sister Rita. This mean : S = R + 4 Seven years ago Susan was ( S - 7 ) yrs old, and Rita was ( R - 7 ) yrs old. Seven years ago, Susan was twice as old as Rita. This mean : ( S - 7 ) / ( R - 7 ) = 2 ...
April 10, 2016

Trigonometrt
a. 810 ° = 720 ° + 90 ° = 2 * 360 ° + 90 ° So : sin ( 810 ° - theta ) = sin ( 90 ° - theta ) sin ( A - B ) = sin A * cos B - cos A * sin B In this case A = 90 ° , B = theta. sin 90 ° = 1 cos 90 ° = 0 sin ( 90 ° - theta ) = sin 90 &...
April 9, 2016

Algebra
x + 2 y = 10 Subtract x to both sides x + 2 y - x = 10 - x 2 y = 10 - x Divide both sides by 2 2 y / 2 = 10 / 2 - x / 2 y = 5 - x / 2 x ^ 2 + y ^ 2 = 25 x ^ 2 + ( 5 - x / 2 ) ^ 2 = 25 ________________________________ Remark: ( a - b ) ^ 2 = a ^ 2 - 2 * a * b + b ^ 2 ...
April 6, 2016

math
( - 8 ) * ( - 7 ) = ( - 1 * 8 ) * ( - 1 * 7 ) = ( - 1 ) * ( - 1 ) * 8 * 7 = 1 * 8 * 7 = 1 * 56 = 56
April 5, 2016

Algebra 1
a = larger number b = smaller number One third the sum of two numbers is 10. This mean: ( a + b ) / 3 = 10 Multiply both sides by 3 a + b = 30 Half the difference is 14. This mean: ( a - b ) / 2 = 14 Multiply both sides by 2 a - b = 28 Add b to both sides a - b + b = 28 + b a...
April 5, 2016

Algebra
4 x - 6 y - 3 = 7 x + 2 y - 4 Subtract 4 x to both sides 4 x - 6 y - 3 - 4 x = 7 x + 2 y - 4 - 4 x - 6 y - 3 = 3 x + 2 y - 4 Add 3 to both sides - 6 y - 3 + 3 = 3 x + 2 y - 4 + 3 - 6 y = 3 x + 2 y - 1 Subtract 2 y to both sides - 6 y - 2 y = 3 x + 2 y - 1 - 2 y - 8 y = 3 x - 1...
April 5, 2016

maths
( 14 / 40 ) * 100 % = 0.35 * 100 % = 35 %
April 5, 2016

Math
1 ft = 12 in 2 ft = 24 in r = 24 in = 2 ft The volume of a ball: V = ( 4 / 3 ) * pi * r ^ 3 = ( 4 * pi / 3 ) * 2 ^ 3 = ( 4 * 3.1416 / 3 ) * 2 ^ 3 = ( 12.5664 / 3 ) * 2 ^ 3 = 4.1888 * 2 ^ 3 = 4.1888 * 8 = = 33.5104 ft ^ 3
April 5, 2016

math
3 / 27 = 3 / ( 3 * 9 ) = 1 / 9 3 / 27 = 10 / x 1 / 9 = 10 / x Multiply both sides by 9 1 = 90 / x Multiply both sides by x x = 90 min OR x = ( 10 miles / 3 miles ) * 27 min = ( 10 / 3 ) * 27 min = 270 min / 3 = 90 min
April 5, 2016

Social studies
Ms.Sue Iam from Sarajevo, Bosnia and Herzegovina, former Yugoslavia citizen. YUGOSLAVIA WAS NEVER HAD SOVIET RULE. It was very different from the socialism of the Soviet.
March 30, 2016

pr calc 11
The numbers are: 8 an - 5 becouse: 8 * ( - 5 ) = - 40 and 8 - 5 = 3 x ^ 2 + 3 x - 40 = ( x + 8 ) ( x - 5 )
March 30, 2016

pr calc 11
( a + b ) ^ 2 = a ^ 2 + 2 a b + b ^ 2 so: ( x + 2 ) ^ 2 = x ^ 2 + 2 x * 2 + 2 ^ 2 = x ^ 2 + 4 x + 4 ( x + 2 ) ^ 2 - ( x + 2 ) - 42 = x ^ 2 + 4 x + 4 - x - 2 - 42 = x ^ 2 + 4 x + 4 - x - 44 = x ^ 2 + 4 x - x + 4 - 44 = x ^ 2 + 3 x - 40 Find two numbers whose product is - 40 and...
March 30, 2016

Math
Parabola - 5 t ^ 2 - 25 t is concave downward. That's why you get negative time. You can switch - 5 to 5. If you want to see graph go on: w o l f r a m a l p h a . c o m When page be open in rectangle type: - 5 t ^ 2 - 25 t , t = 0 to - 5 and click option: = You wil see ...
March 29, 2016

math
x = 0.6969... 100 x = 0.6969... * 100 = 69.6969... 100 x - x = 99 x = 69.6969... - 0.6969... = 69 99 x = 69 3 * 33 x = 3 * 23 Divide both sides by 3 33 x = 23 Divide both sides by 33 x = 23 / 33 0.6969... = 23 / 33
March 24, 2016

math
1 / 2 (14 x - 2 ) - 1 / 4 ( - 4 x - 24 ) = 14 x / 2 - 2 / 2 - ( - 4 x / 4 ) - ( - 24 / 4 ) = 14 x / 2 - 2 / 2 + ( 4 x / 4 ) + ( 24 / 4 ) = 7 x - 1 + x + 6 = 8 x + 5
March 24, 2016

Math
In google type: integration by parts online emathelp When you see list of results cilck on: Integral (Antiderivative) Calculator with Steps - eMathHelp When page be open in rectangle type: e^(3x) sin (2x) then clic option: CALCULATE You wil see solution step-by-step.
March 24, 2016

algebra i
You can square rooted only expresiion between brackets, not single number.
March 21, 2016

algebra i
( x - 4 ) ^ 2 = 625 Take square root to both sides + OR - ( x - 4 ) = 25 1 solution: x - 4 = 25 Add 4 to both sides x - 4 + 4 = 25 + 4 x = 29 2 solution: - ( x - 4 ) = 25 - x + 4 = 25 Subtract 4 to both sides - x + 4 - 4 = 25 - 4 - x = 21 Multiply both sides by - 1 x = - 21 ...
March 21, 2016

Math haha
7 / 2 = ( 7 / 2 ) * ( 3 / 3 ) = 21 / 6 ( 7 / 2 + 5 / 6 ) ^ 2 - ( 7 / 2 - 5 / 6 ) ^ 2 = ( 21 / 6 + 5 / 6 ) ^ 2 - ( 21 / 6 - 5 / 6 ) ^ 2 = ( 26 / 6 ) ^ 2 - ( 16 / 6 ) ^ 2 = 676 / 36 - 256 / 36 = ( 676 - 256 ) / 36 = 420 / 36 = ( 12 * 35 ) / ( 12 * 3 ) = 35 / 3
March 20, 2016

Math-Measure's & area
1. A = B * H = 82 * 16.6 = 1,361.2 2. 0.123333.... is a rational number becouse : 0.123333... = 37 / 300
March 17, 2016

Math
Rectangular pyramid
March 17, 2016

algebra
OR x + 9 y = 77 Multiply both sides by 7 7 * x + 9 y * 7 = 77 * 7 7 x + 63 y = 539 - 7 x - y = 27 _______________ 7 x - 7 x + 63 y - ( - y ) = 539 - 27 0 + 63 y + y = 512 64 y = 512 y = 512 / 64 = 8 x + 9 y = 77 x + 9 * 8 = 77 x + 72 = 77 Subtract 72 to both sides x + 72 - 72...
March 13, 2016

algebra
7 x - y = 27 Divide both sides by 7 7 x / 7 - y / 7 = 27 / 7 x - y / 7 = 27 / 7 x + 9 y = 77 x + 9 y * 7 / 7 = 77 * 7 / 7 x + 63 y / 7 = 539 / 7 Subtract x - y / 7 = 27 / 7 from equation x + 63 y / 7 = 539 / 7 x + 63 y / 7 = 539 / 7 - x - y / 7 = 27 / 7 ...
March 13, 2016

Math
Numbers 1 ÷ 9 are one digits numbers. Numbers 10 ÷ 30 are two digits numbers. Obviously Eric will write 9 one digits numbers and 21 two digits numbers. 9 * 1 + 21 * 2 = 9 + 42 = 51 digits
March 9, 2016

Math
55 = 11 * 5
March 8, 2016

Math
You can write original number as : x = 10 a + b Reverse number you can write as : y = 10 b + a x + y = 10 a + b + 10 b + a = 11 a + 11 b = 11 ( a + b ) Example : Original number: x = 23 a = 2 , b = 3 x = 10 a + b = 10 * 2 + 3 = 20 + 3 = 23 Reverse number: y = 10 b + a = 10 * 3...
March 8, 2016

database
Find answer on wikipedia.
March 8, 2016

maths
x = 0.27272727... 100 x = 100 * 0.27272727... 100 x = 27.27272727... 100 x - x = 99 x = 27.27272727... - 0.27272727... = 27 99 x = 27 9 * 11 x = 9 * 3 Divide both sides by 9 11 x = 3 Divide both sides by 11 x = 3 / 11
March 7, 2016

Math
A golden rectangle is a rectangle whose side lengths are in the golden ratio: phi = 1 / [ ( 1 + sqroot 5 ) / 2 ] W = L * phi W = 12 * 1 / [ ( 1 + sqroot 5 ) / 2 ] = 12 * 2 / ( 1 + sqroot 5 ) = 24 / ( 1 + sqroot 5 ) = 24 / ( 1 + 2.236068 ) = 24 / 3.236068 = 7.416408 ft W = 7.4 ...
March 7, 2016

Math
x ^ 2 + 10 = 7 x Subtract 7 x to both sides x ^ 2 + 10 - 7 x = 7 x - 7 x x ^ 2 - 7 x + 10 = 0 Now you must solve this quadratic equation. The solutions are : x = 2 and x = 5 Proof : 2 ^ 2 + 10 = 4 + 10 = 14 = 7 * 2 5 ^ 2 + 10 = 25 + 10 = 35 = 7 * 5
March 6, 2016

math
x1 = score math = 65 x2 = score arts = 86 x3 = score science = 84 x4 = score social studies = 78 x5 = score grammar average = ( x1 + x2 + x3 + x4 + x5 ) / 5 = 80 ( 65 + 86 + 84 + 78 + x5 ) / 5 = 80 ( 313 + x5 ) / 5 = 80 Multiply both sides by 5 313 + x5 = 80 * 5 313 + x5 = 400...
March 5, 2016

Maths
Copy your question in google. You will find answer.
March 5, 2016

math
(e ^ 3 / f ^ 2 ) ^ - 3 = 1 / (e ^ 3 / f ^ 2 ) ^ 3 = 1 / ( e ^ 9 / f ^ 6 ) = f ^ 6 / e ^ 9 ( e ^ - 4 / f ) ^ - 1 = 1 / [ ( 1 / e ^ 4 ) / f ] = 1 / [ 1 / ( e ^ 4 * f ) ] = e ^ 4 * f / 1 = e ^ 4 * f (e ^ 3 / f ^ 2 ) ^ - 3 * ( e ^ - 4 / f ) ^ - 1 = ( f ^ 6 / e ^ 9 ) * e ^ 4 * f = ...
February 21, 2016

Algebra
Yes y = 3 x + 7 = 4 * 7 = 28 3 x + 7 = 28 3 x = 28 - 7 = 21 x = 21 / 3 = 7 yrs 7 ft + 7 * 3 ft = 7 ft + 21 ft = 28 ft = 4 * 7 ft
February 21, 2016

Math Help!
6 - ( - 3 ) = 9 15 - 6 = 9 24 - 15 = 9 33 - 24 = 9 42 - 33 = 9 51 - 42 = 9 - 3 ,6 ,15 , 24 , 33 , 42 , 51 Arithmetic progression. Initial term a1 = - 3 Common difference d = 9
February 17, 2016

PLZ HELP MATH
p = pressure d = depth p = 14.7 + 14.7 ( d / 30 ) = 14.7 ( 1 + d / 30 ) In this case d = 1000 ft p = 14.7 ( 1 + 1000 / 30 ) = 14.7 ( 1 + 33.33 ) = 14.7 * 34.33 = 504.7 psi
February 14, 2016

Algebra ASAP
x ^ - 2 = 1 / x ^ 2 ( 6 x ^ - 2 ) ^ 2 = ( 6 / x ^ 2 ) ^ 2 = 6 ^ 2 / ( x ^ 2 ) ^ 2 = 36 / x ^ 4 ( 0.5 x ) ^ 4 = 0.5 ^ 4 * x ^ 4 = 0.0625 x ^ 4 ( 6 x ^ - 2 ) ^ 2 0.5 x ^ 4 = ( 36 / x ^ 4 ) * 0.0625 x ^ 4 = 36 * 0.0625 * x ^ 4 / x ^ 4 = 36 * 0.0625 = 2.25
February 14, 2016

Math
Probability that the 7th grader is a boy = number of boys/number of students = 3 / ( 3 + 3 ) = 3 / 6 = 1 / 2 Probability that the 8th grader is a boy = number of boys/number of students = 1 /( 4 + 1 ) = 1 /5 Probability that both are boys = 1 / 2 * ( 1 / 5 ) = 1 / 10 = 0.1 = 10 %
February 14, 2016

math
a1 = first number a2 = second number a3 = third number a2 = a1 + 2 a3 = a2 + 2 = a1 + 2 + 2 = a1 + 4 a1 + a2 + a3 = a1 + a1 + 2 + a1 + 4 = 3 a1 + 6 = 147 Subtract 6 to both sides 3 a1 + 6 - 6 = 147 - 6 3 a1 = 141 Divide both sides by 3 a1 = 141 / 3 = 47 a1 = 47 a2 = 47 + 2 = ...
February 13, 2016

math
n = Number of nickels q = Number of quarters He has 10 more nickels than quarters mean : n = q + 10 Justin has a total of 50 coins that are all nickels and quarters mean : n + q = 50 n = q + 10 so : n + q = 50 q + 10 + q = 50 2 q + 10 = 50 Subtract 10 to both sides 2 q + 10 - ...
February 10, 2016

Algebra
94 % = 94 / 100 = 0.94 $ 560,000 / 0.94 = $ 595744.68
February 9, 2016

Math
L = Lita's age J = Joe's age Lita is three times Joe's age mean : L = 3 J The difference of their ages is 10 mean : L - J = 10 L = 3 J so : L - J = 10 3 J - J = 10 2 J = 10 Divide both sides by 2 J = 10 / 2 = 5 L = 3 J = 3 * 5 = 15 Lita's present ages = 15 Joe...
February 9, 2016

algebra equations
x = a number 4 less than 5 times itself mean : 5 x - 4 x + 5 x - 4 = 27 6 x - 4 = 27 Add 4 to both sides 6 x - 4 + 4 = 27 + 4 6 x = 31 Divide both sides by 6 x = 31 / 6 Are you shure that the result is 27?
February 9, 2016

math
6 / 27 = 3 * 2 / ( 3 * 9 ) = 2 / 9
February 6, 2016

Algebra
4. 3 ( 4 - 2 x ) = - 2 x 3 * 4 - 3 * 2 x = - 2 x 12 - 6 x = - 2 x Add 6 x to both sides 12 - 6 x + 6 x = - 2 x + 6 x 12 = 4 x Divide both sides by 4 3 = x x = 3 Answer d 5. 5.4 + 0.2 x = - 1.4 x + 8.6 Subtract 5.4 to both sides 5.4 - 5.4 + 0.2 x = - 1.4 x + 8.6 - 5.4 0.2 x...
February 1, 2016

math
8 / 270 = x / 72.5 Multiply both sides by 72.5 72.5 * 8 / 270 = x 580 / 270 = x 2.148148 = x x = 2.148148 x = 2.1 fluid ounces Rounded to the nearest tenth.
January 30, 2016

Math
Substitute the values a = 4 , b = - 9 , c = - 9 into the quadratic formula x1/2 = [ - b +OR- sqroot( b ^ 2 - 4 a c ) ] / 2 a x1/2 = [ - ( - 9 ) +OR- sqroot( ( - 9 ) ^ 2 - 4 * 4 * ( - 9 ) ) ] / 2 * 4 x1/2 = [ 9 +OR- sqroot( 81 - 4 * ( - 36) ) ] / 8 x1/2 = [ 9 +OR- sqrt ( 81 + ...
January 29, 2016

Math
1 / 4 = 1 * 8 / ( 4 * 8 ) = 8 / 32 5 * 16 = 5 * 2 / ( 16 * 2 ) = 10 / 32 Your answer is correct.
January 26, 2016

Algebra
2 y - 8 = 3 y - 18 Subtract 2 y to both sides 2 y - 8 - 2 y = 3 y - 18 - 2 y - 8 = y - 18 Add 18 to both sides - 8 + 18 = y - 18 + 18 10 = y y = 10
January 25, 2016

Math
[ ( 8.3 + x ) / 11.2 ] * 8 ) = 16 Divide both sides by 8 [ ( 8.3 + x ) / 11.2 ] * 8 ) / 8 = 16 / 8 ( 8.3 + x ) / 11.2 = 2 Multiply both sides by 11.2 11.2 * ( 8.3 + x ) / 11.2 = 2 * 11.2 8.3 + x = 22.4 Subtract 8.3 to both sides 8.3 + x - 8.3 = 22.4 - 8.3 x = 14.1
January 24, 2016

Math
12 : 18 = 2 * 6 : ( 3 * 6 ) = 2 : 3 2 : x = 2 : 3 x = 3 Answer A 5 : 15 = 5 : ( 3 * 5 ) = 1 : 3 1 : 3 = x : 3 x = 1 Answer C
January 21, 2016

math
Did you read my answer?
January 21, 2016

math
r = first number r + 1 = second number r + 2 = third number r + r + 1 + r + 2 = 144 3 r + 3 = 144 Subtract 3 To both sides 3 r + 3 - 3 = 144 - 3 3 r = 141 Divide both sides by 3 r = 141 / 3 = 47 r + 1 = 48 r + 2 = 49 47 + 48 + 49 = 144
January 21, 2016

Math
75 % = 75 / 100 = 0.75 L = 124 ft W = 0.75 * L = 0.75 * 124 = 93 ft P = 2 L + 2 W = 2 ( L + W ) = 2 * ( 124 + 93 ) = 2 * 217 = 434 ft A = L * W = 124 * 93 = 11,532 ft ^ 2
January 21, 2016

Maths
L = 3 W d = sqroot ( L ^ 2 + W ^ 2 ) d = sqroot [ ( 3 W ) ^ 2 + W ^ 2 ] = sqroot ( 9 W ^ 2 + W ^ 2 ) = sqroot ( 10 W ^ 2 ) = 6 * sqroot ( 10 ) sqroot ( 10 ) * W = 6 * sqroot ( 10 ) Divide both sides by sqroot ( 10 ) W = 6 cm L = 3 W = 3 * 6 = 18 cm P = 2 L + 2 W = 2 ( L + W...
January 21, 2016

Math
y - 2 = 6 x + 3 Subtract 6 x + 3 to both sides y - 2 - ( 6 x + 3 ) = ( 6 x + 3 ) - ( 6 x + 3 ) y - 2 - 6 x - 3 = 0 y - 6 x - 5 = 0
January 21, 2016

math
1 h = 60 min Speed = ( 4 / 5 ) mile * 60 min / 9 min Speed = ( 4 / 5 ) * 60 / 9 = 4 * 60 / 5 * 9 = 240 / 45 = 2 * 2 * 2 * 2 * 3 * 5 / ( 3 * 3 * 5 ) = 2 * 2 * 2 * 2 / 3 = 16 / 3 miles / hour
January 21, 2016

Math
150 % = 150 / 100 = 1.5 1.5 * 25,800 = 38,700
January 13, 2016

Algebra
In google type : functions graphs online When you see list of results click on : Draw Function Graphs - Plotter - Rechneronline When page be open in blue rectangle type : x + 3 In gray rectangle type : - 2 x - 3 Then click option : Draw Solution : x = - 2 , y = 1
January 13, 2016

  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. Next>>