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May 22, 2015

Posts by becky


Total # Posts: 534

algebra help please
Factor 72-17v=v^2
March 19, 2008

this one is throwing me in algebra
Factor completely 49w^2+81-126w (7w+ )(7w- )
March 19, 2008

last week of algebra
Factor s^2+4s+4 (s+ 1 )(s+ 4) This doesn't seem right.
March 19, 2008

algebra final, please
Evaluate the polynomial for x=2 2x^2-4x+2=2*(2)^2-4*(2)+2 =2*4-4*(2)+2 =8-4*(2)+2 =8-(8)+2 =18 Am I right or wrong?
March 18, 2008

algebra final, please help
Solve w^2+3w-54=0 x= -1 minus sqrt55, -1+ plus sqrt55 Is this right?
March 18, 2008

algebra
Evaluate the polynomial for x=2 2x^2-4x+2=2*(2)^2-4*(2)+2 =2*4-4*(2)+2 =8-4*(2)+2 =8-(8)+2 =18 Am I right or wrong?
March 18, 2008

algebra
Thank you
March 18, 2008

algebra
Rewrite the following expression with positive exponents (33xy)^-3/7 Would it be 1 over (33xy)^3/7?
March 18, 2008

algebra
Use the quadratic formula to solve the equation x^2-5x=-10
March 18, 2008

algebra
Thank you
March 18, 2008

algebra
The solution for x = x^2+14x-4=0
March 18, 2008

algebra
Solve by completing the square x^2+3/2x=3 What is the solution? x=
March 11, 2008

algebra
Solve by completing the square x^2+3/2x=3
March 10, 2008

algebra
What are the exact solutions? x^2+4x+4=36 I have -34,-38 Is this right?
March 10, 2008

algebra
What would be the discriminant for this equation: x^2-2x+12=0 How many solutions are there? I have that the discriminant is -44 and since the discriminant is negative, the square root of the discriminant is a pure imaginary number. Is this correct?
March 7, 2008

Algebra
Thank you very much. I am not very good at Algebra, but maintaining an "A". I want to totally understand how the numbers are arrived at and then it makes complete sense.
March 6, 2008

Algebra
Aki's Bicycle Design has determined that when x hundred bicycles are built, the average cost per bicycle =0.9x^2-1.7x+10.861, when C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle? C(x)=0.9x^2-1.7x+10.861 = C(...
March 6, 2008

algebra
Aki's Bicycle Design has determined that when x hundred bicycles are built, the average cost per bicycle =0.9x^2-1.7x+10.861, when C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle? C(x)=0.9x^2-1.7x+10.861 = C(...
March 5, 2008

algebra
Is it possible to have different quadratic equations with the same solution? Explain.
March 2, 2008

algebra
Simplify ^3sqrt1000
February 25, 2008

english
How do you write a report on improvements in your area?
February 24, 2008

algebra
simplify 23sqrt(32x^2)-2sqrt(50x^4)
February 21, 2008

Math Analysis
The solution of 5x>2x is?
February 18, 2008

algebra
yes, please and thank you
February 17, 2008

algebra
5sqrt18^2-3sqrt50x^2=
February 17, 2008

algebra
How is adding radical expressions similar to adding polynomial expressions? How is it different? Provide a radical expression as an example.
February 17, 2008

algebra
Why is it important to simplify radical expressions before adding or subtracting?
February 17, 2008

algebra
Find the LCM 15b^3a^3, 5b^8,a^2, 6b^2a^6
February 12, 2008

algebra
Solve. 8/w = 9/w - 1/2 The solution is:
February 12, 2008

algebra
Subtract. Simplify if possible. 6/x+b - 6/x-b
February 12, 2008

algebra
Thanks Guido.
February 12, 2008

algebra
Add. Simplify if possible. 7/9z^3 + 1/21z^3 I came up with 49+3z/63z^3 Is this correct?
February 12, 2008

algebra
Divide and simplify -35+7w / 121w-605 ______ __________ 5 25 I know you invert the second half of the equation to multiply and then I am stuck.
February 12, 2008

algebra
Simplify by removing factors of 1. 9v-81 over 9v
February 11, 2008

algebra
multiply and simplify 10x^3 over 3r^3 multiplied by 9r^4 over 100x Is the correct answer 3x^4r^6 over 10??
February 11, 2008

algebra
When solving a rational equation, why is it necessary to perform a check?
February 10, 2008

algebra
Thanks Dan. You are one very smart cookie.
February 7, 2008

algebra
Factor: check by multiplying x^2-6x Is this correct? x^2(x-5)
February 7, 2008

algebra
Add (r-8s+6)+(4r+7s)+(s+3) Is this right? 5r+9
February 7, 2008

algebra
Factor by grouping 5x^3-5x^2-x+1 Would it be? (x-1)(5x^2-1) or (5x^2-1)(x-1) Usually the answers are in descending order.
February 7, 2008

algebra
Choose the simplifed form of (4n^-3)^-3. The choices are 1/64n^9 4n^-9 64/n^9 64n^9 I chose 64/n^9
February 7, 2008

algebra
Is there a reason that the answer wouldn't just be 6^3? The instructions say to type the exponential notation with positive exponents.
February 7, 2008

algebra
Divide and simplify 6^6/6^3 Would the answer be 216 or 6^3?
February 7, 2008

algebra
So, would the answer be -2x^4+7^2
February 7, 2008

algebra
Multiply (7-2x^4)^2 Is this right? 36(-2x^4+7)
February 7, 2008

algebra
Factor completely w^2+9-6w Is this right? (w-3)(w-3)
February 7, 2008

algebra
Simplify 1/9^-4 One divided by 9^-4 Directions say to simplify answer and type an integer or a fraction. Is 6561 correct?
February 7, 2008

algebra
(-7x+3)+(4x^2+1/2x-10) one-half Is this right? 8x^2-13x-14 divided or over denominator 2
February 7, 2008

story problem
Thanks. You are such an ego booster. I am doubting how much I really know.
February 7, 2008

story problem
The mass of Pluto is about 1.31 x 10^19 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Pluto is the mass of the sun? Give answer in scientific notation. Is this correct? 1.53x10^8
February 7, 2008

more algebra
(4-x)(3-2x)= Is this correct? 12-11x+2x^2
February 7, 2008

algebra
(1.6x^3+4.7x^2-3.8x)-(-4.3x^3-4.4x^2+55) Is this correct? 5.9x^3+9.1x^2-3.8x-55
February 7, 2008

algebra
(x^6-13x^3+42)divided by (x^3-6) Is this correct? x^3-7
February 7, 2008

algebra
40x^8-56x^4+24x divided by 8x Is this correct? 5x^7-7x^3+3
February 7, 2008

algebra
Factor - check by multiplying Is this right? x^2-6x = x^2(x-6)???
February 6, 2008

algebra
No, really the problem is &-7x+3)+(4^2+1/2 {one half}x-10 I came up with -14x^2+8x^2-13 over 2 Is this correct?
February 5, 2008

algebra
(-7x+3)+(4x^2+1/2x-10)
February 5, 2008

algebra
(-7x+3)+(4x^2+1/2x-10) Simplify answer - -14x^2+8x^2-13 over denominator of 2?
February 5, 2008

algebra
If I add x^5+5x^4 is the answer 6x^9?
February 2, 2008

algebra
Yes, thank you. I had the answer you wrote but wasn't sure.
February 2, 2008

algebra
Would the problem (xz^3)^-4 be simplified to 1/x4z12?
February 2, 2008

algebra
So, I come up with -8x^6-8x^2+-5 Would that simplify to x4+-5?
February 2, 2008

algebra
Divide 32x^8-32x^4+20x^2 by -4x^2
February 2, 2008

algebra
Find the perimeter of a polynomial with sides 3x 9 4x 6 6x+1 6
February 2, 2008

algebra
thank you so much
January 15, 2008

algebra
Given f(x)=2x+4, find f(a-4) a) 2a-4 b) 2a c) a+2 d) a-4
January 15, 2008

algebra
a) 2a-4 b) 2a c) a+2 d) a-4
January 15, 2008

algebra
Given f(x)=2x+4, find f(a-4)
January 15, 2008

algebra
Are the following lines parallel, perpendicular, or neither? x-6y=12 6x+y=6
January 15, 2008

algebra
Write the equation of the line passing through (1,0) and (1,-1) a) x=1 b) y=1 c) y=x+1 d) y=-x
January 15, 2008

algebra
it would be 9+7
January 15, 2008

algebra
When I multiply 6v^9*10v^7 I get 60v^16 My question is, do I add the 9+7 or multiply the 9*7?
January 15, 2008

algebra
here I go, answer d
January 15, 2008

algebra
Write the equation of the line passing through (1,0) and (1,-1) a) x=1 b) y=1 c) y=x+1 d) y=-x
January 15, 2008

algebra
answer a
January 15, 2008

Algebra
Are the following lines parallel, perpendicular, or neither? x-6y=12 6x+y=6
January 15, 2008

Science-- Physics
Does an object need to have a velocity of 0 meters per second to be in equilibrium and why/why not?
January 10, 2008

math
purple- 21/63 reduced to 1/3 brown- 21/62
January 10, 2008

algebra
Adult tickets for a play cost $16 and child tickets cost $5. If there were 22 people at a performance and the theater collected $275 from ticket sales, how many children attended the play? A) 6 B) 7 C) 8 D) 15
January 10, 2008

algebra
Given f(x) = 5xsquared - 3x + 1, find f(-2)
January 10, 2008

algebra
graph the inequality y > -4
January 10, 2008

algebra
Sorry, it should read y=-5x+3
December 27, 2007

algebra
Solve each of the following systems by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 10x+2y=7 y==5x+3
December 27, 2007

algebra
Find values for m and b in the following system so that the solution to the system is (-3,4). 5x+7y=b mx+y=22
December 26, 2007

algebra
Solve the following systems by substitution. 4x-12y=5 -x+3y=-1
December 26, 2007

Algebra
Rewrite into standard form (0,5), m=-3/5. Write the equation of the line passing through each of the given pairs of points. Write the answer in slope-intercept form, where possible. (2,-3) and (2,4)
December 9, 2007

GCSE Biology
how is the structure of a sensory neurone allows it to do its job
December 9, 2007

SOCIOLOGY
explain to me why applying sociological perspective can make as seen less in control of oor lives
December 8, 2007

math
A full grown oak tree loses an average of about 7 tons of water through its leaves per day. About how many tons of water is that per year? I need an exact answer using partial products. Can anyone please hlep?
December 4, 2007

Algebra
2(x-3) - 3(x+5) = 3(x-2) -7 (2x-6) - 3x+-15 = (3x-6) -7 -x-21 = 3x-13 -x-3x = -13+21 -4x = 8 x = 8/-4 x = -2 Is this correct?
November 25, 2007

Algebra
2(x-3) - 3(x+5) = 3(x-2)-7 2x - 6 - 3x + 15 = 3x - 6 - 7 2x - 6 + 6 - 3x +15 + 6 = 3x - 6 - 7 2x - 3x + 22 = 3x - 7 2x + 22 = -7 Now I am stuck
November 25, 2007

Algebra
2(x-3)-3(x+5) = 3(x-2)-7
November 25, 2007

Chemistry
I have a bag of m&m's with 52 in it and on the pkg it states it weighs 47.9g. If I divide by 52 it gives me .92g per m&m. To find out what the mass is of a mole of m&m's do I Multiply 6.02 x 10 to the 23 power x .92g for my answer?
November 9, 2007

Social Studies
The Adironadack Mountains, the Hudson and Mohawk Valleys, and the Atlantic Coastal Plain are all examples of ?
October 16, 2007

physics
OH! Then subtract 273 from answer to change it to celcius.
April 26, 2007

physics
1000 = (5.67*10^8)(1m^2)(T^4) Then solve for T :)
April 26, 2007

Vitamins
I just took a quiz with this exact same question and the answer is Vitamin A, Vitamin D, and B6.
April 20, 2007

organic cehmistry
I am totally lost on the subject of Fischer projection. I have no clue on where to begin solving : (S) 3-chloro-1-penten-4-yne http://www.mhhe.com/physsci/chemistry/carey/student/olc/ch07projections.html
April 7, 2007

Math
An electronics firm uses 600 cases of transistors each year. The cost of storing one case for a year is 90 cents, and the ordering fee is $30 per shipment. How many cases should the firm order each time to keep total cost at a minimum, assuming the transistors are used at a ...
March 19, 2007

Calculus II
What is sin(i) -- (sin of the imaginary number, i) What is cos(i)-- cosine of the imaginary number, i orrr tan(1+i) You can derive these things from the equation: Exp(i x) = cos(x) + i sin(x) ---> sin(x) = [Exp(ix) - Exp(-ix)]/(2i) cos(x) = [Exp(ix) + Exp(-ix)]/2 tan(x) = 1...
March 5, 2007

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