Friday

May 22, 2015

May 22, 2015

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*