Saturday

April 30, 2016
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*