# Posts by Margie

Total # Posts: 216

3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2) 4. 2x^2+6x+4/4x^2-12x-16= 2(x+2) (x+1)/4 (x-4) (x+1) 5. 6-y/y^2-2y-24= 1/(y+4) *Please check them.- 3. (t-5)(t+5) / (t+4)(t-5) 4. 2((x-1)(x+2)) / 4((x+4)(x-1)) 5. (6-y) / (y+6)(y-4) i don't really understand what this is... but...

You have to simplify each expression: 1/R+1/T multiply the first term by t/t, and the second R/R You should then get... (T+R)/RT

a^2-9 a^2-3a ----- * ------- a^2 a^2+a-12 *I got: 3-3a/4 I don't think so. factor the a^2-9, and the second numerator to a(a-3) Then the denominator factored is a^2*(a+4)(a-3) So wait... don't I have to first have to take out the repeated thingys.? I don't know ...

25-x^2 6x^2 ------ * ------ 12 2x *I got: 5-x/2 No. Try again. Can you tell me what I did wrong please.? You have to factor the numerator, you should have two factors for the first, and one for the second. In the denominator, you will have 24 x. I think the x divides out, and ...

* I don't get this problem at all... 4(x+2) 6x^2 ------ * ---- 5x 2x what are the directions? in the denominator, you have 10x^2 in the numerator, you have 24x^2(x+2) the x^2 divides out, and the numbers can be reduced. that would be (12(x+2))/(5) the directions say: ...

m-2 m+5 --- * ---- m-5 m-2 *I got : m+5 ---- m-5 you're absolutely correct. the m-2's cancel out and you're left with m+5/m-5 thank you hopefully you can help me with the others...

m-2/m-5*m+5/m-2=-1 If your problem is this: (m - 2)/(m - 5) * (m + 5)/(m - 2) = -1 (m - 2) cancels out in both the numerator and denominator on the left-hand side since you are multiplying. That leaves us with this: (m + 5)/(m - 5) = -1 To solve for m: Multiply both sides by (...

p^4-1=(p^2)(p^2+1) Typo? p^4-1=(p^2-1)(p^2+1)

4c^2 - 12c + 9 This is what I got: (2c+3)(2c-3) *Is that correct.? No, it is (2c-3)^2.

a^2 - 2ab - 15b^2 This is what I got: (a-5b)(a+3b) Correct! x^4+2x^3-4x^2-5x-6 DIVIDED BY x^2+x-2 My answer: x^2+x-3 remainder of -12\x^2+x-2

Thanks TRISH
thanks...even though you didn't help me with that you still helped me.. You're welcome. Like BobPursley told you, I just can't give you the answer. Not only is it not what this site is for, you would never learn anything, and like he mentions, it is cheating. The ...

Cout Iblis Can You Help Me W/The ?'s
They are title:Math for Trish To Help Me With We are not going to allow anyone to do your homework for you, or tests. That is cheating, pure and simple. Sorry. I don't have time anymore today,. I'll take a look tomorrow. As Bob said, we don't do the homework for ...

5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. a.y=3x-6 b.6y=-x+2 Set x = 0 and y = 0 to find the intercepts. will that get me 2 thingys for each.? Again, you should show your own answer first, but I'll show you (a...

Math for Trish To Help Me With
Factor the following. You will earn 5 points for each polynomial that is factored correctly. Please label your individual answers with a – f. a.) 4x2 - 25 b.) 3x2 + 6y c.) x^2 - 7x + 10 d.) 2x^2 - 9x – 18 e.) 2ax + 6bx + ay + 3by f.) 6x^2 + 12x – 48 *Can you ...

1. Which line is the flattest (or is less steep)? Why? a.y = 5x -6 b.y = 5x + 6 c.y = x - 3 d.y = 1/2x + 3 I think It is C.It has the smallest slope. Someone Please Help me! ...Help me... Doesn't d have the smallest slope? 0.5x. Please...I just want to see.. Margie -- You ...

(-2x^2y)^3*(5xy^3)^2=(-2x^2y)^3 = -8 x^6 y^3 *Please check my work. What did you do with the (5xy^3)^2 part. The first part you did ok. But you can't just throw away part of the equation. I don't get that part.What do I do there.? (5xy^3)^2=25x^2y^6 You did the first ...

More Math2(MathGuru)
5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. a. y = 3x - 6 b. 6y = -x + 2 *What do I do here.?

Pleas Check More Of My Work(MathGuru)
1. Which line is the flattest (or is less steep)? Why? a.

sqrt2/sqrt10 here is what I got: sqrt (2/10)= sqrt (1/5) sqrt 0.2 * I don't think that it is right but pleasee check it.Thanks Yes, that is one way you could do it, then simplify further by taking the square root of 0.2, but you are probably supposed to simplify like this...

Math(I Don't Get THIS!!)
15sqrt8x^16/5sqrt2x^4 *I totally need help with this one!Please help me.! I'm going to assume your problem is this: 15√(8x^16) / 5√(2x^4) You can start by simplifying what's outside the square root sign. 15/5 reduces to 3/1. We end up with this: 3√(8x...

(2sqrtx)(5sqrtx^3) Here is what I got:10sqrtx^4 *Is this correct.? This one is close but still needs to be simplified further. 10√x^4 -->you can take the square root of x^4. Can you take it from here to finish? so it will be:10sqrtx^2 No, remember you are taking the ...

(3sqrt5)(2sqrt10) I got:6sqrt50 Is this correct.? You can take this one step further. 6√50 can be simplified to this: 6√(25 * 2) -->you can take the square root of 25. 6 * 5 √2 = 30√2 -->this is the simplified form. thanks can you help me with my ...

Check This Also(Math)
5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. a.

3. You are sliding a big cabinet down a truck ramp for a customer. You must maintain control of the cabinet because it is very heavy. There are 2 ramps in the building. The equation of ramp 1 is y = 2x + 7 and the equation of ramp 2 is y = 3 x + 7. Which is the safest ramp to ...

1. Which line is the flattest (or is less steep)? Why? a.

How do I do this.?(Math.)
Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve one of the equations for x or y. Let's solve the first one for y: y - 2x = -5 y = 2x - 5 Now let's substitute 2x - 5 for y in the second equation to solve for x: 3(2x - 5) - x = ...

Another problem to check..please check my work...
(-2x^2y)^3*(5xy^3)^2=(-2x^2y)^3 = -8 x^6 y^3 *Is this correct.? (-2x^2y)^3 * (5xy^3)^2 = (-8x^6y^3) * (25x^2y^6) = -200x^8y^9 When you have the same base, you add exponents when multiplying. For example, x^2 * x^3 = x^5. When you have the same base, you multiply exponents when...

(2x-3)(x^2+5x-3)=2x+10x^2-15x+9 *Is this correct.? this is a different problem... Here's how this one works out: ......x^2 + 5x - 3 ............2x - 3 ================== ...... -3x^2 - 15x + 9 2x^3 + 10x^2 - 6x ====================== 2x^3 + 7x^2 - 21x + 9 I hope this will ...

3a^3b^2(-a^3b-a^2b^2)=-3a^9b^3-3a^6b^4 *is this correct.?- Remember to add exponents when multiplying with the same base. (3a^3b^2)(-a^3b - a^2b^2) = -3a^6b^3 - 3a^5b^4 I hope this will help.

math2(count iblis)
-y^3(2x^2y-4xy^2)=-2x^2y^4+4xy^6 *is this correct.? No, in the last term, the y should be to the fifth power (3+2)

math
sqrt3x^5y^14 To simplify: sqrt(3 x^5 y^14) The square root of x^4 is x^2. The square root of y^14 is y^7. Can you determine what to do now with those hints? I hope this will help.

math
-4x^2(3x^2-x+1)=-12x^4+4x^3-1x^2 *Is this correct.? The last term should be -4x^2

math
-4x^2(3x^2-x+1) Multiply it term by term, and I will, or someone will check you.

5y^8 - 125 *you have to factor completley 5y^8 - 125 = 5(y^8 - 25) = 5(y^4 + 5)(y^4 - 5)= 5(y^4 + 5)[y^2 + sqrt(5)][y^2 - sqrt(5)]= 5(y^4 + 5)[y^2 + sqrt(5)]* [y + 5^(1/4)][y - 5^(1/4)] good work, good explaination

Math 4 (Count Ibilis)
Solve by factoring: One of the solutions to the quadratic equation 2x^2 - 9x – 5 is -1/2. What is the other solution? 2x^2 - 9x – 5 = (2x + 1)(x - 5) So, it's x = 5.

I THOUGHT THIS WAS A HELP SITE!
noone is helping.Please help me. - get a life. YOu posted the question 15 min ago. We don't just sit here waiting for questions.

Math 3
Solve by factoring: One of the solutions to the quadratic equation x^2 - 13x + 30 is 3. What is the other solution? Is it:(x+3) If 3 is a solution, then the quadratic contains a factor (x-3). The other factor is thus (x-10), and it follows that the other root is x = 10. thanks...

Math2
Factor: 2xy – xz + 2wy – wz (x+w)(2y-z)

Math Help
3x^2 + 17x + 10 *I really don't get this but you have to factor completley. (3x+2)(x+5) thanks. - can you help me with my other problems.? I'll take a look. I'll have more time in about 2 hours from now. ok. - but I don't have that long can you try to help me ...

HOW COME NO1 IS ANSWERING MY QUESTION.?
I know people are volunteering freely but I really need help! Have patience. Some of us have girl scouts and we have to be at the booths to sell cookies. Go buy some cookies while you wait. Girl Scout cookie sale is over in three weeks, don't let is slip by. I just bought ...

math2
5y^8-125 *you have to factor completley easy. Take out the five: 5(y^8-25) Now, isnt y8 the same as y4 )2 ? That is a square, so you have that y4 squared minus another perfect square? That factor as the difference of two squares. After doing that, you may have another ...

math
3x^2+17x+10 *you have to factor completley 51xcubed+12 Didn't I do this already? I remember it. What two factors of ten (hint: 5,2) will add to 17 when one factor is multiplied by 3? Hint: the five will be multiplied by three.

3x^2+17x+10 *You have to factor completley but I don't know how too.Please help.! (3x+2 )(x + 5) Factoring asks this question: what two factors of 10 add to 17 when one is multiplied by three? Here is how you factor. Place two sets of parentheses. ( ) ( ) To get 3X^2, we ...

thanks,can you help me with this one: xy-3x-8y+24 I know you have to go, but you should be able to figure these out by now. Take out x from the first 2 and 8 from the second 2: x(y-3)-8(y-3) (x-8)(y-3) ac-bc+ad-bd *I seriously only have 2 more minutes now,I told my mom I ...

math for belinda to help me please
1.x^2-9x+14 2.GCF of m^2n^2+3m Oh haha ignore the new question. For the first one, set it up: (x )(x ) Now, think of two numbers that are multiplied to 14. They have to either both be positive or both be negative to get positive 14. They also must be able to add up to 9. Let ...

math222
Factor: x^2-5x-14 (x-7)(x+2) thanks how about the next one...lok at the top...

Math!!
*Factor by grouping!! 10x2 + 2xy + 15x + 3y Do the same thing we've been doing: 2x(5x+y) + 3y(5x+y) (2x+3y)(5x+y) thanks...

4x^2+20x+5y+xy *you have to factor by grouping,for more information just ask me* First, take out 4x from the first two and y from the second: 4x(x+5) + y(x+5). Then combine the 4x and the y: (4x+y)(x+5). That's your answer. thanks. - can you help me with this one? *48x^2y+...

4x^2+20x+5y+xy *you have top factor by grouping.If you need more info just ask me but please help me!!!* An example from http://www.ltcconline.net/greenl/courses/152b/FactoringRatExpr/factor.htm Factoring by Grouping Consider the expression 3x2 + 6x - 4x - 8 We can factor this...

15sqrt8x^16/5sqrt2x^4 The time changed to 8:00 p.m. please help me!!!g I wish you would use separators... 15sqrt(8x^16)/5sqrt(2x^4) I assume that is the question. 15/5 * sqrt ((8x^16)/ (2x^4)) 3* sqrt (4 x^12) 3 * 2* x^6

math

math help
15sqrt8x^15/5sqrt2x^4 remember that sqrt(a)/sqrt(b) = sqrt(a/b) simplify the inside. also notice that sqrt(x^11) = sqrt(x^10) * sqrt(x) = x^5 * sqrt(x)

Math(forget my other question I already have that)

math
Please help me simplify: 4sqrtx^12/24sqrtx^2 *Is this correct: 2sqrt4/12x The answer you get depends upon where you put the parentheses, and you don't show any. I don't see any way of coming up with your answer. 4 (sqrtx)^12/ 24 (sqrtx)^2 = (1/6) x^6/x = (x^5)/6

Math
Is this correct: sqrt2/sqrt10=sqrt2/5sqrt2 nope. it would be sqrt2/(sqrt5)(sqrt2) no.d sqrt2/sqrt10= sqrt (2/10)= sqrt (1/5) sqrt 0.2 thanks can you help me with this please? Factor:9x^2-8y^2 oh ok; can one of you help me with this: 4sqrtx^12/24sqrtx^2 4sqrtx^12/24sqrtx^2 4/4...

Math
sqrt50/sqrt2 sqrt50/sqrt2 = sqrt(25) = 5 I got the same answer which is 5

more math
sqrt50/sqrt2 (sqrt50)/(sqrt2)*(sqrt2/sqrt2)= (sqrt50*sqrt2)/2 =sqrt100/2=10/2=5 Check my thinking. thanks... what does this equal: 3sqrt2+4sqrt2 3 times the square root of 2 PLUS 4 times the square root of 2. This would equal 7 times the square root of 2, or 9.899... THIS IS ...

math
square root of-3x^5y^14 (i sqrt 3*x^(5/2)* y^7 or -(i sqrt 3*x^(5/2)* y^7 thanks

math
squareroot of 24 Type this in the google search window: sqrt 24

Algebra!
Six pears and three apples cost \$3.90. Two pears and five apples cost \$3.30. How much does one pear cost? Hint: You have two unknowns (variables), so you need two equations. Write one equation for each situation and solve the system of equations. See answer below count lblis ...

Algebra!!
Six pears and three apples cost \$3.90. Two pears and five apples cost \$3.30. How much does one pear cost? Hint: You have two unknowns (variables), so you need two equations. Write one equation for each situation and solve the system of equations. (1): Six pears and three ...

French 1!(I checked in my book and it's not there)
PLease help me say this!I have another quiz tomorrow and I forgot how to conjugate it. VENIR je _______ tu _____ ii/elle/on ______ nous _______ vous _______ ils/elles _________ http://french.about.com/od/grammar/a/venir.htm It is all here.

Algebra 1 HELP!!!(Word Problems!)
Sunset rents an SUV at \$21.95 plus \$0.23 per mile. Sunrise rents the same vehicle for \$24.95 plus \$0.19 per mile. For what mileage is the cost the same? Hint: Using "m" for miles, write one equation for each rental company. http://www.jiskha.com/display.cgi?id=...

Graph!
Choose the best description for graphing the point (3,-4). Go to the left three and up four. Go to the right three and up four. Go to the right three and down four. Go to the left three and down four. Is not +3 to the right, and -4 down?

Thanks,what abou this one? Use the Substitution method to solve the system of equations. x + y = 10 y = x + 8 follow the same principle for the first one and u'll get it u already have y = x + 8 Subst. that in the first eqn and just follow up from there CAn you just help ...

BOBPURSLEY PLZ HELP WITH ? BELOW!!!

Algebra 1 HELP PLZ!!!
Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 PLz HELP!! I'M NOT BOB BUT I CAN HELP ITS REALLY SIMPLE ALGEBRA X + Y = -4......EQN 1 X - Y = 2.....EQN 2 From EQN 2, let x = 2 + y Substitute that into EQN 1 x - y = -4 (2+y) + y= -4 2 + 2y...

help!
Can you please give me one of them so I cansolve for the other one?PLease! The general formula for a straight line is y = mx + b. Just plug the points into the equation to arrive at two equations. 6=2m+b 10=4m+b you have two equations and two unknowns. Solve them ...

Verticsl or Horizontal?
Which way is which? Horizontal is left to right Vertical is down and up An easy way to remember HORIZONTAL is that the HORIZON is left<~~>right. http://www.answers.com/horizon http://www.answers.com/horizontal =)

??
Complete this sentence with the correct choice: y = 4 is a horizontal line with ________. a.undefined slope. b.a slope of 4. c.a slope of 0. d.None of the above will make a true statement. If slope = y/x and it is a horizontal line (parallel to the x axis), then y = ? What do ...

Algebra!!!
Complete this sentence with the correct choice: y = 4 is a horizontal line with ________. undefined slope. a slope of 4. a slope of 0. None of the above will make a true statement. Think this through... If y=4, then x can be any number, but y will always be 4. Slope is defined...

?
In slope form is m= slope and y=y-intercept YES yes

HELP WITH ALGEBRA!!
6. What happens to the graph of the line y = 3x -2 when the equation is changed to y = 3x +6? Look at the general equation for a straight line. It is y = mx + b where m is the slope and b is the y intercept. Therefore, the line crosses the y axis at -2 in the first equation ...

Algebra
5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x - 6 6y = -x + 2 The y intercepts is when x=0 So put in x=0 in each, and solve for y. The x intercepts is when y=0, put in y=0 and solve for x. I will be happy to ...

English(To Kill A MockingBird)
In chapter 4 in what specific ways did Scout critize the school in which she is attending? Have you read Chapter Four? Maybe if you did you would know. Yeah but I can't fnd it! type in anti study+ to kill a mockingbird and you will find lots of cliffnotes that will help ...

Algebra HELP!!
Plz help me!! And what is your question?

Substitution Method
Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 x + y = -4 x - y = 2 In the second equation, x= y+2 Putting that in the first.. (y+2) + y= -4 subtract two from each side, then divide each side by two to get y. Then, put that value of y into ...

Geometry
Help with Geometry please! Do you have any specific questions?

DanH-Algebra 1
Solve the system of equations using the Addition method. 2a + 3b = -1 3a + 5b = -2 Margie: Roger's answer below is correct. If you don't understand it, please try and tell us what you don't understand. He makes it sound so strange can you ask him to explain in an ...

Algebra 2345678!!
Solve the system of equations using the Addition method. 2a + 3b = -1 3a + 5b = -2 The addition method tells you to find common multiples of a coefficient, then add the equations together to eliminate a variable. If you multiply the first equation by 3 and the second by -2 you...

Algebra333333!!!
Choose the ordered pair that is a solution to the system of equations. 3x - y = 9 2x + y = 6 (3,0) (3,-18) (3,-1) (3,1) Once again add the two equations to get 5x = 15 Solve for x and substitute into either equation to find y.

Algebra22222!!!
Choose the ordered pair that is a solution to the system of equations. 3x - y = 10 -x + y = -4 (3, -7) (-1, 3) (3, -1) (3, 1) Follow the example I gave in your previous question. I'm not going to do all of them. You want to eliminate one of the variable and solve. Then ...

Algebra111111!!!
Choose the ordered pair that is a solution to the system of equations. -x + y = 12 x + 2y = 3 a. (7, 5) b. (5, -7) c. (-7, 5) d. (-7, -5) e. none of the above This question wants you to find the point of intersection of the two lines, provided they're not parallel. Solve -...

Algebra3!!!!
How would you would graph the linear equation y = -2x + 6? First plot the point (6,0) and then count up two and to the right 1. First plot the point (6,0) and then count down two and to the right 1 First plot the point (0,6) and then count up two and to the right 1 First plot ...

Algebra2?????
What would be the missing piece of information given the following information: Find the equation of the line that passes through the points (3, -1) and (2, 5). y = -6x + ? 17 15 20 11 Good. Try this one just like we did the last one...let me know how you do! is it...15? nope...

Algebra ??
What would be the missing piece of information given the following information: Find the equation of the line that passes through the points (2, 6) and (4, 10). y = 2x + ? a. 4 b. 2 c. 7 d. 5 OK. let's take this step by step. y = 2x + ? Remember the equation of a line is y...

Algebra
What would be the missing piece of information given the following information: Find the slope of the line that passes through the points (2, 6) and (4, 10). m = ? a. 2 b.6 c. 1 d. 9 I think it is c. m = change in y over change in x m= (10 - 6)/(4 - 2) It's not c.

Algebra
What would be the missing piece of information given the following information: Find the slope of the line that passes through the points (2, 6) and (4, 10). m = ? a. 2 b.6 c. 1 d. 9 I think it is c. Remeber the definition of a slope. It is the change in y divided by the ...

PLz!!!My teacher gave me 10 more min.so plz help!!
I really need help!! My advice is to spend some time reading our answers and less time pleading for more help. The time you take to type a plea for more help can be used for following our suggestions. DrBob222 is right. Graphing is very important, and we would love to help you...

Algebra1
Complete this sentence with the correct choice: y = 4 is a horizontal line with ________. undefined slope. a slope of 4. a slope of 0. None of the above will make a true statement. Draw a line through y = 4 and parallel to the x axis. Now, what slope is that? is it a slope w/0...

graphs2
x + 2y = -4 How do I graph this?can you please help? I answered this below. If you are having trouble you must tell us exactly what the problem is. What don't you understand about taking the next step? that is the problem.I got the other one but how do i do this if the y ...

graphs
x = -3 y = 2 how about this?how do i graph it? x = -3. This means, no matter what y is, x is -3. So, it's a vertical line at x = -3.

Slope
The slope of the line that passes through (2, -4) and (-6, 2) is: -4/3 3/2 1/4 -3/4 Remember, the slope is change in y divided by change in x, so, a slope of 3/2 for example, means that the line goes "up 3 and over 2"

Slopes
Given y = 2x – 4, choose the statement that accurately describes this line. The slope is 2 and the y intercept is 4. The slope is 2 and the y intercept is -4. The slope is 4 and the y intercept is 2. The slope is -4 and they y intercept is 2. The equation of a line is y...

Graphs 2
x = -3 y = 2 how about this?how do i graph it? Is this a single point? no it says that Graph numbers 4 and 5 on the same square of graph paper. Make sure you label each line. x = -3 y = 2 Others may be able to answer this better than I; however, x = -3 with no y value listed ...

Graphs
x + 2y = -4 How do I graph this?can you please help? Assign values to x and solve for y or assign values to y and solve for x. Makre a table. X........Y 0........-2 2........-3 etc. I almost always assign a value of zero to Y, too, and calculate X. Y = 0; X = -4 i don't ...

Help 6!!!
6. What happens to the graph of the line y = 3x -2 when the equation is changed to y = 3x +6? What do you think happens...how do the slopes compare? The y intercept changes, does it move the line up or down?

Help 5!!!
5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x - 6 6y = -x + 2 On the second equation, change it to read y= ...,. Divide both sides of that equation by 6 to get the desired result. how?? The first one has slope m=...

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