Saturday
April 30, 2016

Posts by becky

Total # Posts: 564

math
I have trouble solving word problems. Can you tell me the best approach to solve this word problem? If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?
November 16, 2008

geometry
A RULE THAT IS ACCEPTED AS A PROOF IS CALLED A_____? (A) THEOREM (B) POSTULATE (C) AXIOM (D) A AND B
October 22, 2008

chemistry
i need 3 types of suspensions found in a science lab
October 10, 2008

english
Eliminate five letters from the word below to find one familiar word in the English language: FHIEVLEILCEOTPTTEERRS
October 7, 2008

Economics
How has today's economy affected the airline industries?
October 5, 2008

math
My thousands digit is twice my hundreds digit. The sum of my tens and ones digit is my thousands digit. My hundreds digit is 2 more than my tens digit. My tens digit is greater than 1 and less than 3. What 4 digit number am I?
September 29, 2008

GCSEbiology
explain how the srtucture of a sensory neurone allows it to do its job
September 5, 2008

Biology
Which organism is a third-order heterotroph? To what trophic level does that organism belong?
September 3, 2008

Science
Where is lantana located?
July 11, 2008

math-116 final is it a timed test?
The test is available at the beginning of the week and not due till sunday, so it looks like a week is your time limit.
June 22, 2008

Technology
What if the company has a centralized computer system but needs to outfit its employees with computers. Would it be safe to say that they should purchase laptop for all their traveling employees with a wireless card to allow them access to company programs and email while ...
June 6, 2008

Technology
Say you have a financial consulting corporation that has four satellite offices in the US and employs 300 fulltime employees and 20 of those travel 2 to 4 days a week. These 20 employees do not have access to email or other company programs while they are traveling. The ...
June 6, 2008

history
HH is stamped on the underneath on the inside of the ring on the silver. Stone is set in middle of the setting as a single stone.
June 1, 2008

history
I have a turquiose ring, round stamped with what I believe to be HH. The first H is very clear although the second letter almost looks like a mistrike H, could be a worn F, E, etc... what do the letters mean??? There are no purity markings that I can see.
June 1, 2008

English
Thank you
April 27, 2008

English
pronouns 16a. Anyone who requests a copy of the game may have it for their video library. 16b. Anyone who requests a copy of the game may have it for his or her video library. My answer is B. what type of pronoun is this? Thanks
April 27, 2008

English
16a. Anyone who requests a copy of the game may have it for their video library. 16b. Anyone who requests a copy of the game may have it for his or her video library. What type of pronoun is this?
April 27, 2008

english
Thank you.
April 13, 2008

English
I chose "B" as my answer to this question. Hope I'm right!!
April 13, 2008

english
Officials are considering placing the sturgeon on the endangered species list. If such an action is taken, ships, including those that carry goods and produce, will not be allowed to travel on the large rivers in our region that serve as breeding grounds for the fish. If ship ...
April 13, 2008

criminal justice
Explain the Correctional Officer subculture. How does this subculture create ethical issues for correctional officers?
April 1, 2008

AP PHYSICS
A 3.0-uF capacitor and a 4.0-uF capacitor are connected in series across a 40.0-V battery. A 10.0-uF capacitor is also connected directly across the battery terminals. Find the total charge that the battery delivers to the capacitors. I NEED HELP WITH THIS PROBLEM. THANKS!
April 1, 2008

AP PHYSICS
An electron and a proton are initially very far apart (effectively an infinite distance apart). They are then brought together to form a hydrogen atom, in which the electron orbits the proton at an average distance of 5.29*10^.11m. What is the change in EPE(electric potential ...
March 26, 2008

algebra
Thank you.
March 21, 2008

algebra
I would choose a - the equation has two imaginary soluations. Is this right?
March 21, 2008

algebra
For the following equation, state the value of the discriminant and then describe the nature of the solutions. -2x^2+3x-7=0 What is the value of the discriminant? Which one of the statements below is correct? The equation has two imaginary solutions. The equation has one real ...
March 21, 2008

algebra final, please help
This is what I came up with for a final answer {x straight up and down line-17<x<-8 or x>20}
March 21, 2008

algebra final, please help
Solve (x+17)(x-20)(x+8)>0 The solution set is (x )? Use at least one inequality or compound inequality to express your answer. For answers with more than one inequality, separate the inequalities by a comma or the word 'or'. Type R is the answer is all real numbers...
March 21, 2008

algebra
Find the greatest common factor for the group of terms -30a^2,5a^4 Would the answer be 5a^2?
March 21, 2008

algebra help please
Thank you. I thought I was loosing my mind.
March 19, 2008

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

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