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July 7, 2015

Posts by Helper


Total # Posts: 1,739

math
5z+10(-z+14)=95 5z - 10z + 140 = 95 -5z = -45 z = ?
February 2, 2011

alg and trig
If you mean, (you should use parentheses) 6x^3-5x^2+15x+5 / (2x^2-x+3) Use polynomial long division, Here's the answer to check to your long division, 6x^3 - 5x^2 + 15x + 5/(2x^2 - x + 3)
February 2, 2011

math
If you mean, (5x^3 * y^4)/(14x^5 * y^-8)= 5y^12/(14x^2)
February 2, 2011

algebra
Your problem is not clear. What are you dividing?
February 2, 2011

math
20 + 40 = 60
February 2, 2011

math
Square X, s = side Area, A = s^2 100 = s^2 Take square root of both sides 10 = s Square X, s = side Perimeter, P = 4s s = 10 P = 4(10) P = 40 Square Y, s = side Perimeter of Sq. Y = 1/2 Sq. X Perimeter of Sq X = 40, P = 1/2 (40) = 20 P = 4s 20 = 4s s = 5 Square Y, side = s ...
February 2, 2011

math
Yes, Damon is right. A(5) is the total value. I meant to put, $18,500 + 4610.26 Interest = $23,110.26 after 5 years
February 2, 2011

math
$18,500 at 4.5% compounded semiannually for 5 years A(t) = P(1 + r/n)^nt A(5) = 18500(1 + 0.045/2)^(2(5)) A(5) = 18500(1 + 0.0225)^10 A(5) = 18500(1.0225)^10 A(5) = 18500(1.24920) A(5) = 23110.26 interest 18,500 + I = total value after 5 yrs
February 2, 2011

Algebra
f(x)=(4x-1)/(x+7) y = (4x-1)/(x+7) Rewrite as: y = (4x)/(x+7)- 1/(x+7) Multiply both sides by x+7: (x + 7)y = 4x - 1 Expand out terms of the left hand side: xy + 7y = 4x - 1 xy - 4x = -7y - 1 x(y - 4) = -7y - 1 Divide both sides by y - 4: x = (-7y - 1)/(y - 4) f^-1 = (-7x - 1...
February 2, 2011

Math geometry
A line that bisects an angle divides it into two congruent parts. So if ray AH bisects <GAB, then angle GAH = angle BAH ? You are saying <GAH is acute and <BAH is obtuse? Does the problem state ray AH bisects <GAB or are your looking at a picture and YOU are making...
February 2, 2011

Math geometry
Need more information. Recheck your problem.
February 2, 2011

Algebra
Ignore my answer. I did not notice that one measurement is in feet. I compared inches to feet, which you cannot do.
February 2, 2011

Algebra
Set up a ratio. 10 : 100 = 10/100 = 1/10 The model is 1/10 the size of the Endeavour.
February 2, 2011

,Math 7
You're welcome :)
February 2, 2011

,Math 7
Question 2 You are correct. Megan starts with $24.75. She should leave at 11:15. Look at the part under question 4 ABOVE where I say "To check this".
February 2, 2011

Algebra- is my answer right
The answer is 2 < x < 4 I don't know how to solve this. I have tried various web sites for help. I used an online calculator for the answer but the calculator does not have the steps to solve. I've been trying this since you posted yesterday. Hoping a math tutor ...
February 2, 2011

math
y = 10h if h = number of hours worked then, $10
February 2, 2011

Math geometry
You're welcome :)
February 2, 2011

Math geometry
The midpoint of BC is M(-10,-16) B(-1,8) C = ? xm = 1/2(x1 + x2), ym = 1/2(y1 + y2) -10 = 1/2(-1 + x2) -20 = -1 + x2 -19 = x2 -16 = 1/2(8 + y2) -32 = 8 + y2 -40 = y2 C(-19, -40) check my math
February 2, 2011

Math (HELP PLEASE)
Set-up equations 1) x - 7 + 3 + 6 - 8 + 1 - 6 = 3 x + 10 - 21 = 3 x - 11 = 3 x = 13 2) x - 12.00 + 15.00 - 7.00 - 8.50 + 8.00 + 2.00 = 22.25 You solve 3) Miguel x + 15 - 4 + 6 - 17 + 22 + 14 = 40 Yoshi x + 12 - 4 + 33 - 7 = 40 You solve 4) 3:35--plane 2:00--less 2h 1:35--check...
February 2, 2011

math
Arithmetic sequence a, a + d, a + 2d, a + 3d, ...a +(n - 1)d 1)a3 = 10, a7 = 20 Since these are 4 places apart (7 - 3 = 4) a7 = a3 + 4d 20 = 10 + 4d 10 = 4d d = 10/4 = 2.5 So, the common difference, d = 2.5 To find the 1st term a, a3 = a + 2d 10 = a + 2(2.5) 10 = a + 5 a = 5 2...
February 2, 2011

algebra
3x^3-2x^2y-8xy^2 x(3x^2 - 2xy - 8y^2) x(x - 2y)(3x + 4y)
February 2, 2011

Psych
I think Ms. Sue said this. Where are the quotes?
February 2, 2011

Business Communication
Is this a test? The tutors will not complete your homework for you. The tutors will check or offer comments on YOUR work.
February 2, 2011

Algebra
This isn't a question. This is a statement, telling you why a solution to a word problem should be checked to the original wording of the problem versus the equation written for the problem. This is because the equation, derived from the wording of the problem, could be ...
February 2, 2011

algebra
If x = -70 -x = 70 Think of '-' meaning -1 -1x = 70 Divide both sides by -1 -1x/-1 = 70/-1 x = -70
February 2, 2011

Math
You're welcome :)
February 2, 2011

Math
80% = 30 .80x = 30 x = 30/.80 x = 37.5 total games 20% of 37.5 = 7.5 games lost 30 wins 7.5 lost 37.5 total games Not sure what you are trying to do in Excel.
February 2, 2011

Physics
See links below under Related Questions. This almost exact problem was answered.
February 2, 2011

Algebra
the quotient of 12 and the number, x 12/x = quotient x = -3 12/-3 = ?
February 2, 2011

Calculus
A ball is shot straight up into the air with initial velocity of 47 ft/sec Free fall, s in ft, t in sec s = s0 + v0t - 16t^2 height, s0 = 0 velocity, v0 = 47 s = 0 + 47t - 16t^2 s = 47t - 16t^2 Instantaneous velocity, v v = ds/dt = v0 - 32t v = 47 ft/sec v = 47 - 32t To find ...
February 2, 2011

Math
360 deg = 1 revolution 1 min = 60 sec 120/360 = 1/3 rev/sec 1/3 per/s * 60 sec/min = ?
February 2, 2011

College Algebra
3x^2- 12x - 24 = 0 Solve the quadratic equation by completing the square: Divide both sides by 3: x^2 - 4x - 8 = 0 Add 8 to both sides: x^2 - 4x = 8 Add 4 to both sides: x^2 - 4x + 4 = 12 Factor the left hand side: (x - 2)^2 = 12 Take the square root of both sides: |x - 2| = 2...
February 2, 2011

MATH
Please don't type in all caps. It is rude. On the internet, all caps is equivalent to shouting. 21x^7 and 147x^9 LCM is 21x^7
February 1, 2011

geometry
You need to draw right triangle ABC. Angle A (vertex angle) = 3 deg side b (base) = 60 mi side c = hypotenuse side a (distance of climb) = unknown tan A = op/hyp = a/b = a/60 tan 3 = a/60 0.0524 = a/60 60(0.0524) = a 3.144 mi = a So the plane climbed 3.144 miles To find how ...
February 1, 2011

Calc
Looks good to me!
February 1, 2011

calculus
x^2/(x+1) dx | = integration symbol |x^2/(x + 1) dx Using long divsion |x - 1 + 1/(x + 1) dx |x dx - |1 dx + |1/(x + 1) dx 1/2 x^2 - x + ln |x + 1| + C
February 1, 2011

geometry
Please do not repost a question without first checking your original post. See your 1st post. This question was answered.
February 1, 2011

Algebra
You need parentheses. x - (4/-x) + 2 > 0 ? (x - 4)/(-x + 2) > 0 ? Please, re-state the problem with parentheses.
February 1, 2011

math
129/10 = ?
February 1, 2011

Algebra
You're welcome
February 1, 2011

Algebra
(7+u)(3u-1)=0 7 + u = 0 u = -7 3u - 1 = 0 3u = 1 u = 1/3
February 1, 2011

geometry
Sum of measures of interior angles of a polygon of n sides = (n - 2)* 180 deg (53 - 2)*180 = 51*180 = ?
February 1, 2011

Algebra B
imaginary number
February 1, 2011

Algebra- is my answer right
(2b^-4 c^6)^5 = 32c^(30)/(b^(20))
February 1, 2011

Math
x = gal of 30% solution .30x = value of 30% solution 150 - x = gal of 60% solution .60(150 - x) .50(150) = mixture .30x + .60(150 - x) = .50(150) Solve for x, gal of 30% solution 150 - x = gal of 60% solution
February 1, 2011

Algebra- is my answer right
(x^2+4x+4)+(y^2-2y+1)=20+16+4 Should be, (x^2 +4x + 4)+(y^2 - 2y +1 )= 20 + 4 + 1 (x^2 +4x + 4)+(y^2 - 2y +1 )= 25 (x + 2)^2 + (y - 1)^2 = 25
February 1, 2011

algebra
14 - 20x > 14 - 6x -14x > 0 When you divide by a negative, the sense of the inequality is reversed x < 0
February 1, 2011

Math
Your question is?
February 1, 2011

Math
Please put your subject in the School Subject box. w = width 4w + 1 = length P = 2w + 2L 62 = 2w + 2(4w + 1) Solve for w
February 1, 2011

trig
1 half x ? What does this mean?
February 1, 2011

Finance
$5,000 @ 5% for 5 yrs then 7% for 5 yrs I = PRT I = 5000(0.05)(5) I = 250(5) I = 1250.00 5000 + 1250.00 = 6250.00 I = PRT I = 6250(0.07)(5) I = 437.50(5) I = 2187.50 6250.00 + 2187.50 = 8437.50
February 1, 2011

Finance
Is the interest compounded? Compounded daily, quarterly, yearly, etc ?
February 1, 2011

Finance
What do the numbers 0,1,2,3,4,5 represent?
February 1, 2011

Finance
A(t) = P(1 + r/n)^nt P = 50,000 r = 0.076 n = 4 (quarterly) t = 4.5 A(4.5) = 50000(1 + 0.076/4)^(4(4.5)) A(4.5) = 50000(1 + 0.019)^(18) A(4.5) = 50000(1.019)^(18) A(4.5) = 50000(1.40325) A(4.5) = 70,162.50 50,000 + 70,162.50 = 120,162.50
February 1, 2011

Finance
A(t) = Pe^rt A(t) = 100,000(2.718281)^((0.056 * 3.5)) A(t) = 100,000(2.718281)^0.1960 A(t) = 100,000(1.216527) A(3.5) = 121,652.70 100,000 + 121,652.70 = 221,652.70
February 1, 2011

accounting
Is there a Stockholders equity acct? DB Cash CR Stockholders Equity
February 1, 2011

Physics
Incomplete problem
January 31, 2011

math
x = 1st odd integer x + 2 = 2nd odd integer x + 4 = 3rd odd integer x + 6 = 4th odd integer x + x + 2 + x + 4 + x + 6 = -104 4x + 12 = -104 4x = -116 x = -29 -29, -27, -25, -23
January 31, 2011

math
You are welcome :)
January 31, 2011

math
Set up a ratio 234 : 100 = 400 : x 234/100 = 400/x cross multiply 234x = 40,000 x = 170.94
January 31, 2011

Complex Numbers
You are welcome
January 31, 2011

Complex Numbers
x^2 - 6x + 25 = 0 Subtract 25 from both sides: x^2 - 6x = -25 Add 9 to both sides: x^2 - 6x + 9 = -16 Factor the left hand side: (x-3)^2 = -16 Take the square root of both sides: |x - 3| = 4i Eliminate the absolute value: x - 3 = -4i or x - 3 = 4i Add 3 to both sides: x = 3 - ...
January 31, 2011

geometry
Area of an equilateral triangle A = 1/4(s^2 * (sqrt(3))
January 31, 2011

Geometry
Is this the exact wording of your problem? Are you looking at a picture? An angle doesn't have 'sides'. Two lines or rays form an angle. Where are you getting three sides?
January 31, 2011

math
15 gal/tank x 25 mpg = 375 miles/tank 2500 mi / 375 per tank = 6.67 tank fills = 7 tank fills (Joe always fills tank) 15 gal per tank x 7 tank fills = 105 gal 105 gal x 2.99/gal = $313.95 gas expense
January 31, 2011

math
3 gal = 12 quarts Each scoop makes 3 quarts 12 quarts / 3 quarts per scoop = 4 scoops
January 31, 2011

math
V = pi r^2 h V = (3.14)(17^2)(3) V = ?
January 31, 2011

math
V = pi r^2 h V = (3.14)(6^2)(12) V = ?
January 31, 2011

math
You must have a typo. None of the choices are correct. starting at5:380p.m ?
January 31, 2011

Math (Algebra 2)
x^4 + 8x^2 - 20 (x^2 - 2)(x^2 + 10)
January 31, 2011

ap calculus
By Theorem ∫ e^x dx = e^x + C
January 31, 2011

Geometry
Perimeter = 36 36 - 18 longest side = 18 This would mean that the remaining TWO sides total 18. The length of any side of a triangle will always be less than the sum of the lengths of the other two sides and greater than the difference of the lengths of the other two sides. 18...
January 31, 2011

algebra
3.20x = value of blooming annuals 3.20 each plant * x number of plants = ttl cost 1.50y = value of non-blooming annuals 1.50 each plant * y number of plants = ttl cost 3.20x + 1.50y = 49.60
January 31, 2011

algebra
24 is the total number of plants. x = number of blooming annuals y = number of non-blooming annuals x + y = 24
January 31, 2011

algebra
"write a linear system of equations" This is a linear system of equations. You can use x and y instead of n and b. x = number of blooming annuals y = number of non-blooming annuals 3.20x = value of blooming 1.50y = value of non-blooming x + y = 24 3.20x + 1.50y = 49....
January 31, 2011

algebra
b = number of blooming annuals n = number of non-blooming annuals 3.20b = value of blooming 1.50n = value of non-blooming b + n = 24 3.20b + 1.50n = 49.60 Solve the system
January 31, 2011

algebra
Multiply by -5 (-3x - 4y = 21) Multiply by 4 (8x - 5y = -9) 15x + 20y = -105 32x - 20y = -36 47x + 0 = -141 47x = -141 x = -3 8x - 5y = -9 x = -3 8(-3) - 5y = -9 -24 - 5y = -9 -5y = 15 y = -3
January 31, 2011

Calculus
I just looked at the graph. You want the area from x = 0 to x = 1. | = integrate symbol | x^9(1 - x) | x^9 - x^10 Then plug in x, from 0 to 1.
January 31, 2011

Calculus
Were you given (a,b) values? From x = ? to ?
January 31, 2011

Math
Do you mean, ((cube rt(625y))^3 z^7 ? If so, ((cube rt(625y))^3 z^7 = 625y z^7
January 31, 2011

math
Do you have a choice of dimensions?
January 31, 2011

Finance
Income----------46,660 Interest-----------225 Dividends-----------80 Income Adj-------1,150 Sub Total-------48,115 Less Item Ded----7,820 Sub Total-------40,295 Less Exempt------3,400 Taxable Income--36,895 Check my math
January 31, 2011

Finance
See later post above.
January 31, 2011

math
b = price of burgers d = price of dogs 2b + 5d = 8.00 5b + 2d = 9.50 Solve simultaneously
January 31, 2011

parts of speech
What is huour? Is this humor?
January 31, 2011

Geometry
P = 2L + 2w Since this is a square, L = w P = 2(0.66) + 2(0.66) P = 1.32 + 1.32 P = ?
January 31, 2011

math
n = number of adults 6.80n = value of adults 387 - n = number of children 3.40(387 - n) = value of children 6.80n + 3.40(387 - n) = 2444.60 Solve for n = number of adults 387 - n = number of children
January 31, 2011

Math
n = number of ones 1n = value of ones 68 - n = number of fives 5(68 - n) = value of fives n + 5(68 - n) = 172 n + 340 - 5n = 172 -4n = -168 n = 42 n = 42 ones = 42.00 68 - n = 26 fives = 130.00 68 bills = 172
January 31, 2011

Statistic
Delisha/James, please see your 1st post at 1:21 am under "James". Your post was answered there.
January 31, 2011

finance
x = total customers need to buy .03x = 840 x = 28,000
January 31, 2011

finance
$8000 add on interest rate of 11% 8000 x .11 = 880 add on interest/yr 880/yr x 4/yrs = 3520 3520/2 = 1760 1760 total interest on loan 1760 add on interest added to principal 8000 principal + 1760 towards principal = 9760 total loan principal 9760/48 mo = 203.33/month payment ...
January 31, 2011

finance
18% APR -How is this compounded? Yearly, daily, quarterly, etc?
January 31, 2011

college algebra
5 + 2(4y - 4) = 3(2y - 1) 5 + 8y - 8 = 6y - 3 8y - 3 = 6y - 3 2y = 0 y = 0
January 31, 2011

math
Put the words into an equation or mathematical expression. 34 multiplied by d 34 times d 34 x d 34d
January 30, 2011

finance
I = PRT (Interest = Principal x Rate x Time) 13.2% = .132 6 mo = .5 yr I = 1500 x .132 x .5 I = 198 x .5 I = 99 I don't know what you mean by cost? Interest is a form of 'cost' for the loan.
January 30, 2011

Math
Slope of the curve at, y = x^6 at x = -3 y' = 6x^5 at x = -3 6(-3)^5 = -1458
January 30, 2011

AP Psychology
Is this a typo? hueristic?
January 30, 2011

Excel
I'm not sure I'm following you. Do you just want the total 39.60 in the total column? If so, go to Cell E (col E) and click on 'Auto Sum'. One of the choices are "More Functions". Click on that. A box will come up. Type "Product" in that box...
January 30, 2011

Excel
You don't want a sum, you want a product. Use auto sum button, and choose more functions, put multiply or product in the search box and choose 'Product'.
January 30, 2011

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