Sunday

November 23, 2014

November 23, 2014

Number of results: 50,747

**Math HELP**

I have my answers at the bottom but please do these questions so I can check my answers. Check my answers as well. Subtract these fractions. !Reduce them! 1. 5/7 - 3/10= 2. 11/18 - 5/12= 3. 1/3 - 1/6= 4. 7/12 - 1/16= 5. 7/8 - 3/10= 6. 7/8 - 1/12= 7. 7/10 - 2/5= 8. 3/4 - 1/2= ...
*November 23, 2010 by Pratigya*

**Algebra-Please check**

Please check- sqrt of 2x + 15 = x Answers: -5.3 -3.5 -3 5 I think according to my calculations it would be 5, correct? sqrt root of 7-x = 3-solve for x Answers: -2 2 4 -4 My choice would be 2 Is that correct- I squared both sides and came out with 7-x = 9 and then x = 2 Thank ...
*October 12, 2010 by Juliette*

**Algebra**

1. Find the slope of the graph of the linear function f with f(0)=4 and f(3)=13. I have no idea how to do this.. :( __________________________________ Evaluate the function when x=3, x=0, and x= -2. 2. f(x)=-1/2x+3 my answers: 1.5, 3, 1 3. h(x)=5.5x+4 my anwers: 20.4, 4, 7 4. ...
*October 5, 2009 by Kuku Monkey*

**Math Help? Check my answers.**

Simplify 6 x 3 divide 3 - 1. Pre-Algebra? Answers: 2 3 5 6 My answer: 5
*August 20, 2013 by Katherine*

**English**

Now, let's check how well you can use the expressions you've learned. I will distribute handouts. You have to solve the problems. Are you finished? Then, I'll check the answers. Look at the answers on the blackboard. Check your answers. How many students have 10 points? Are ...
*May 27, 2012 by rfvv*

**check math**

Here are my answers. Can you check if I got the right answers? Thank you! (x-4)/(x^2-3x-4) = x+1 (x^3-8)/(x-2)=x^2+2x+4 (5-x)/(x^2-25)=-x-5 (x^2-4x-32)/(x^2-16)=(x-8)/(x-4) first one should be 1/(x+1) second is good third: -1/(x+5) 4th is ok Have you not been taught to place ...
*August 8, 2007 by Anonymous*

**ALGEBRA **

I NEED SOMEONE TO CHECK THESE PLEASE!!! IF B IS REPLACED WITH A NUMBER THAT SHOWS THE RELATIONSHIP INDICATED IN THE TABLE, ARE THESE ANSWERS CORRECT? Y = -X + B X Y 1 0 2 -1 8 -7 10 ? 20 ? 40 ? SO, y=-1+1=0....y=-2+1=-1.......y=-8+1=-7........y=-10+-3=-13...y=-20+1=19.....y=-...
*September 11, 2009 by ggift*

**Algebra**

Hi, could someone possibly check my answers to these algebra questions? Its not my strong point so have been struggling a little (or alot if they are all wrong!) 3m-8-5m+10 = 2-2m 4(2-6x) = 8-24x 7(a+3)-5 = 7a + 16 2x-3(4y-x) = 2x-12y-9x 2(4y-1)+5y(3-2y) = 2(4y-1) +5y(3-2y) If...
*February 4, 2010 by Geoff*

**Algebra**

I was wondering if someone could check over these answers for me. Find the slope between the set of given points: a) (3,-6) & (-2,-7)=2.6 b) (7,5) & (7,-4) = -9 c) (0,-5) & (16,-5)= 16 I just wondered if the answers I have are right.
*December 21, 2009 by kaci*

**Algebra II**

Solve x^4 - 12x - 5 = 0 given that -1 + 2i is a root. I’ve used synthetic division to get the answers x = 1 +/- 2i , 1 +/- sqrt 2 I’ve having trouble checking the answers though because of that imaginary number. How can I check these kind of problems?
*December 13, 2007 by Nick*

**Asap can someone pplz check these answers**

Please check my answers I have 2 do other things right now
*January 26, 2009 by Remy*

**Algebra**

Would someone please check these answers? Simplify. 3/x-5+1/1-4/x-5 For this answer I got: x-2/x-9 Divide. x^2-49y^2/6x^2+42y/(x^2-7xy) For this answer I got: (x+7y)/6x(x^2+7y) Add. Express your answer in simplest for. x/6+3x/6 For this answer I got: 2x/3 Please check my ...
*July 12, 2007 by Linda*

**check math**

Here are my answers. Can you check if I got the right answers? Thank you! (x+y)^3= x^3+3x^2y+3xy^2+y^3 [x^(3/2)][x+x^(5/2)-x^2] = x^(5/2)+x^4-x^(3/2) the last term in the second question should be - x^(7/2), (you were adding 5/2 and 2 in the exponents)
*August 8, 2007 by Anonymous*

**English**

Formative Test Now, let's check how well you can use the expressions you've learned. I will distribute handouts. You have to solve the problems. You will have 5 minutes. Are you finished? Then, I'll write down the answers. Look at the answers on the blackboard. Check your ...
*October 19, 2014 by rfvv*

**check math**

Here are my answers. Can you check if I got the right answers? Thank you! 1/(x+h) - 1/x= -h/(x^2+xh) (2/x^2)/(10/x^5)= (x^3)/5 [1/(3+x) - 1/3]/x= -1/(9+3x) 2x/(x^2-6x+9) - 1/(x+1)- 8/(x^2-2x-3)= (x^2+15)/(x^3-5x^2+3x+9) first 3 look ok In the last one I would not have expanded...
*August 8, 2007 by Anonymous*

**algebra**

where should l go and check my answers
*February 20, 2013 by eric*

**Algebra II**

Solve each equation. Check for extraneous solutions. Solve:|x+5|=3x-7 My answers were: x=6 and x=.5 I dont think they are right though, but I should get 2 answers right???....Help!
*February 8, 2011 by Attalah*

**Algebra**

Can someone check my answers? 1. 3/c - 4/3c = 5/3c 2. -3t/t-4 - 2t+4/4-t = -2t-4/t-4 3. z/3z^2 + 4/7z = 19/21z 4. 5x/2x-6 + x+2/3-x = 4x-2/2x-6 or 2(2x-1)/2(x-3)
*June 3, 2011 by Michelle*

**Math**

Can someone please check my answers below for accurateness? The instructions are: Differentiate and simplify. 1) y=(2x^2+3x-1)(3x^2-5x-3) y'=(4x+3)(3x^2-5x-3)+(2x^2+3x-1)(6x-5) 2) y=(5x^2+3x-1)(3x^2-5x-3) y'=(10x+3)(4x^2-3)+(5x^2+3x-1)(8x) 3)y=6x^3-7x^2+5x-7+x^(5/3)-7/(x^3) y...
*August 7, 2009 by Christine*

**Algebra 1: 8th Grade**

Simplify each expression. Write your answers using positive exponents. Check Answers Please: 1) 2^3*2^4 = 2^7 2)10^6/10^9 = 1/10^3 3)3^5*3^1 = 3^6 4)5^7*5^-4 = 5^3 5)9^3/9^-10 = 9^13 6) 4^11/4^8*4^-2 = 4^5 7) a^2*a^3 = a^5 8)b^-9/b^4 = 1/b^13 9)c^-5*c^-2 = 1/c^7 11)(5d^4)(8d^6...
*April 28, 2009 by Joy*

**TO MS SUE**

Please check my answers to my question, I posted this question before but no one answered or helped me. All I need is for someone to check my answers :)
*September 24, 2014 by Bella*

**Math check my answers**

Please check my answers on the following questions Simplify: (X^6)^1/2 = x^3 1000000^1/6 I don't know this one (64n^12)^-1/6 = 1/0.5n^2 (9n^4)^1/2. = 3n^2 36^3/2 = my answer is 2 in the index of the aware root of 36^3 343^-4/3 I don't know this one Thanks
*September 19, 2013 by Lea *

**Algebra..**

Check These Answers Please? f(x)= x^2+3 ; g(x)=3x-1 1. (f+g) =x^2+3x+2 2. (f+g)(3) = 20 3. (f-g)(x) = x^2+3x-4 4.(fg)(x) = 3x^3+1x^2-9x+3 5. (fg)(x) =5 6. (f/g)(x) =(x^2+3)/(3x-1) Compostitions of functions : 7. (f o g)(x) =3x^2+4 8. (f o g)(x) =10
*September 11, 2012 by victoria*

**Math, Can someone check my answers?**

Can someone please check my answers? Tell whether the given equation has the ordered pair as a solution. 11. y = 6x;(3,16) 13. y = -4x; (-2,8) 15. y = x - 3/4; (2,1 1/4) Answers: 11. Not a solution 13. Has a solution 15. Has a solution
*October 31, 2014 by Phoebe*

**Math: law of exponents check answers**

I know that anything to the power of 0 is 1 but I need help with these 2 questions and check my answers: (xy)^0 / (z^2a^1)= (-2mn^2)^1 / (pqm)^0= (xy^2z)^0= 1? Negative Exponents: it says to leave answers with positive exponents only, I did all these questions so please check ...
*September 8, 2013 by Sophie*

**Algebra**

I have a few questions that I need help with. Solve the radical equation, and check all proposed solutions. 5. x- square root 3x-2=4 I dont understand this problem. Solve and check the equation. 10. (x^2+14x+49)^3/4-20=7 would I have to multiply each number by 4/3? Solve the ...
*August 18, 2007 by Brit*

**Algebra**

Can someone check my algebra answers and help me with the problems I don't understand? 1. n^2-n-20/2n^2 times n^2+5n/n^2-25 answer: n+4/2n 2. (2x-6/21)/(5x-15/12) answer: 8/35 3. 5x-3/6 - x+3/6 answer: 2x/3-1 4. 5x/26 - 2x/13 answer: 1x/26 5. 3x^2/9x^5 answer: 1/3x^3 6. (x^2+...
*June 24, 2007 by Alexandria*

**aLGEBRA 2 help please would appreciate **

x/x+3 -x/x+3=x^2+9/x^2-9 solve for x and check your answers
*October 1, 2013 by lisa*

**Algebra Please check answers**

Could you please check these answers thanks. Directions: Factor each polynomial. If the polynomial cannot be factored, write prime. 1. a^2-16b Answer: (a-16)(a+16) 2. m^2+8m+16 Answer: (m+8)^2 3. 3a^2b+6ab+9ab^2 Answer: Prime 4. 2r^2+3r+1 Answer: Prime 5. z3+6z^2+9z Answer: Prime
*April 5, 2009 by Rae Rae*

**8th Grade Algebra Confusion**

Hi. I am starting a new section in Algebra, and I thought I understood it. But when I went to the back of my book to check the answers, they were way off. We are dividing and simplifying radical expressions and equations.
*February 3, 2010 by Celeste*

**English**

procedure: Formative Test Now. let's check how well you can use the expressions you've learned. I will distribute handouts. You should pick up a handout on the table. You have to fill in the blanks with suitable expressions. Are you finished. Two minutes left. We'll check the ...
*June 9, 2008 by John*

**Science URGENT**

Is there any website or any way I can get the science probe 10 check your understanding answers cause I want to check my answers?
*March 31, 2014 by Anonymous *

**Algebra**

Can someone please check my answers. Solve the following by factoring x^ + 7x + 10 + 0 I got x + (-5) and x = (-2)
*November 20, 2007 by Alicia*

**Algebra**

Can someone check my answers please? Solve the following by factoring? 3x^ - 6x = 0 I got x = 0 and x = 2
*November 20, 2007 by Alicia*

**math(check answers please)**

PLEASE CHECK THESE ANSWERS compare the pair of numbers use <,>,= 3/4 _ 6/8 A.3/4=6/8(I PICKED THIS) B.3/4<6/8 C.3/4>6/8 Write the decimal as a fraction or mixed number in simplest form. 3.45 A.4 3/4 B.4 9/20 C.3 3/4 D.3 9/20(I PICKED THIS
*November 20, 2013 by matt*

**Algebra**

Can someone check my answer please? Find the corresponding y values for x = -2,-1,0,1,2,3 if y = x^-x-2. My answers are under Y. X Y -2 -4 -1 -2 0 -2 1 0 2 4 3 10
*November 20, 2007 by Alicia*

**8th Grade Algebra**

Simplify each rational expression. 1. (x^2+1)/(x+1) 2. (y^2+4)/(y+2) Check Answers: 3.(2t^2+6t+4)/(4t^2-12t-16) Answer: (t+2)/2(t-2)
*June 3, 2009 by Joy*

**Science**

Is there any website or any way I can get the science probe 10 check your understanding answers cause I want to check my answers?
*March 31, 2014 by Anonymous *

**algebra**

Junior ate 30% of the sandwiches at the picnic. If he ate 1 ½ sandwiches, how many sandwiches were there? you cant solve this right? We can't?? Sez who? Let x denote the number of sandwiches. Then we're told 30%x=.30x=1.5 sandwiches. So x=1.5/.30=?? something you can do. its ....
*September 27, 2006 by jessica*

**check math**

Here are my answers. Can you check if I got the right answers? Thank you! solve for x, where x is a real number. x^2+3x-4=14 x=6,3 (x^4-1)/(x^3)=0 x=1 (x-5)^2=9 x=2,8 2x^2+5x=8 x= [-5+/-sqrt(89)]/4 for first one x=-6 or x=3, factors are (x+6)(x-3) second... also x=0 third ... ...
*August 8, 2007 by Anonymous*

**College Algebra**

Can someone check my answer please? Find the corresponding y values for x= -2,-1,0,1,2,3 if y= x^-x-2. My answers are under Y. X Y -2 -4 -1 -2 0 -2 1 0 2 4 3 10
*November 20, 2007 by Alicia*

**Chemistry(Please check)**

1) The Ka for acetic acid is 1.8e-5. What is the pH of a 3.18M solution of this acid? I did 1.8e-5 = x^2/3.18 x=sqrt 1.8e-5 X 3.18 = 7.56e-3 pH=-log(7.56e-3) = 2.12 The pH is 2.12 2) At 25 degrees celsius, the pH of a 1.75M NaCN solution (the Ka for HCN is 4.0e-10) is ? 4.0e-...
*April 2, 2012 by Hannah*

**Algebra (check my answers)**

Please check these answers. Multiply -7(2a2 -4) = -14a2 + 28 Multiply 0.5(a + b -5) = 0.5a + 0.5b - 2.5 Factor bx - by + bz = b(x - y + z) Combine like terms (simplify) 12x + 4 - 11y - 6x - 9 - y = 6x - 12y - 5 Evaluate the expression 3x2y when x = 3 and y = 5 Answer: 135 ...
*November 8, 2011 by Sharon*

**To Sam: Penn Foster answers**

Please do not post any more answers. Jiskha is not a repository for any exam answers. In addition, we have no idea what the questions are. If you want to post a couple of your exam questions along with your answers, we'll be glad to check them for you.
*October 3, 2011 by Ms. Sue*

**check math**

Here are my answers. Can you check if I got the right answers? Thank you! Solve for z: 4x+10yx=0 z=-2x/5y y^2+3yz-8z-4x=0 z=(-y^2+4x)/(3y-8) there was no z in your first equation, from you answer I can tell it should have been 4x + 10yz = 0 If so, the answer is right. last one...
*August 8, 2007 by Anonymous*

**Algebra 2**

Can someone check my answers for the following questions? Thank you. 1)which is the equation of an ellipse with center (-4,2) and a horizontal major axis?
*April 6, 2008 by Lily*

**algebra**

please check answers and change if wrong thank you. The absolute value of 3 times a number x is greater than 33. |3x| > 33 3x > 33 x > 11 what about -11
*February 7, 2012 by ann*

**English**

You are going to take a quiz. I'll distribute exam papers. You should write down the answers. Fill in the blanks with suitable expressions. Take one and pass the others to the other students. First write down your number and name on the top of the paper. You have 3 minutes ...
*June 10, 2008 by John*

**Algebra**

Hello, can someone help me solve and check the following 1) x - 8 = 20 Check: 2) x + 15 = 35 Check: 3) -x +6 = 3 Check: The symbol 'x' is in italic. If I can understand the symbols better, I belive I can get the hang of the course.
*January 8, 2010 by Tamir*

**Algebra 1 **

Write an equation in standard form of the line that passes through the given points. Can someone check my answers? (2,6)(3,8) -2x+y=2 (7,-3)(4,-1) 4/3x+y=19/3 (3,-8)(5,-9) 1/2x+y=-13/2 (-5,6)(2,-3) 9/7x+y=-3/7 (-3,-1)(6,-8) 7/9x+y=-10/3
*November 21, 2013 by Jynessa*

**Health: Check answers**

Jakob went for lab tests, it took three tries with a needle to get any blood into the vial. Why might that be? Jakob may be dehydrated. Jakob had six vials of blood taken, is this healthy? Yes, if it wasn't then his doctor wouldn't have done that many. Check answers please?
*September 15, 2014 by Katt*

**Algebra**

Hi! I was wondering if anyone might be willing to check my answers for these... I have a suspiscion they are wrong, but I don't have any correct answers to compare them against. If I got them wrong, would you mind giving a brief explanation? Thank you for your help! (x^2-1)+(-...
*October 29, 2008 by Cora*

**Math ~ Check Answers ~**

Please Check My Answers. 1: Solve each inequality. m – 7 < 6 a. m < - 1 b. m > 1 c. m < 13 d. m < -13 2: Solve each inequality. p + 12 > 9 a. p > 21 b. p > 3 c. p > -21 d. p > -3 My Answers: 1: b. m > 1 2: a. p > 21
*January 16, 2014 by Cindy*

**Algebra**

Hello, can someone check my answers to the following Algebra questions 1. (2y)(-2)= My answer - 2 * -2 = 0 Translate 2 and 3 into an euation 2. Four less than the quotient of x divided by 2 is 8. My answer - (x * 2) -4 = 8 3. The sum of two consecutive integers is 35. My ...
*December 31, 2009 by Tamir*

**Electromagnetic induction-check answers**

Please check my answers: why does an iron core increase the magnetic iduction of a coil of wire? -I am thinking it has something to do with the voltage being increased. Will a cyclist coast farther if the lamp is connected to the generator on his bicycle is turned off? -I say ...
*November 7, 2007 by Soly*

**Algebra**

Hello, can someone tell me if I got the following solve and check work correct? 1. solve and check 1/2x = 3 5/6 1/2x = 3 5/6 1/2x = 23/6 3x = 23/3 x = 23/3 And to check for it 1/2x = 3 5/6 1/2x = 23/6 46x = 6 x = 6/46 x = 3/23 2. Solve and check 3x + 2 / 2 = 7 3x + 2 / 2 = 7 ...
*April 13, 2010 by Tamir*

**algebra 1**

write an equation in slope-intercept form of the line that passes through the points: 1. (-5,3), (4,-5) 2. (-1/2,-1), (3,9/2) _____ my answers: 1. y=-8/9x-5 2. y=3/7x+5/2 please check.. thnx
*October 16, 2009 by rachel*

**Algebra 2**

Can someone please check my answers? The question is: Write an equation for the perpendicular bisector of the line segment joining the two points. (-5,6),(1,8)= y=-3x+1 (1,4),(6,-6)= y=(1/2)x-(3/4) (5,10),(10,7)= y=(5/3)x-(17/3)
*March 4, 2014 by Jane*

**Math**

Solve each of these systems using the substitution method. Make sure to check your answers ! 2x + 3y = -4 x - 2y = 5 Question 1 answers x = 1, y = -2 x = -1, y = 2 x = 1, y = 2 x = -2, y = -1
*January 3, 2011 by Andrew*

**Science 8 - Check Answers**

Please Check Answers. 4. When a fan is turned on, it changes electrical energy into ______ energy. A. motion * B. magnetic C. gravitational D. electromagnet 5. An experiment discovered that a particular material was a poor conductor of electricity. This material would most ...
*November 14, 2014 by Georgia*

**Algebra 2**

Hey, I have another question. this I just don't understand. I'm really starting to get very confused!!! PLEASE HELP!!!!! Solve each equation by factoring. Check your answers. 3x^2+45=24x
*November 13, 2014 by Taylor*

**Algebra II repost- please check**

I posted these a little while ago but this time I have answered them. 1. Does the graph of y = x – 3x2 + 5 have a maximum or minimum? 2. What is the vertex of the graph of y = -2(x - 3)2 + 4? 3. Does the graph of y = -2(x - 3)2+ 4 open up or down? My answers: 1. I cannot ...
*November 27, 2007 by JaneLee*

**Algebra-Please check**

1. solve sqrt (11-x) = sqrt(x-7) choices are 6,7,8 or9 I think according to my calcs the answer is (9) The range of f(x) = sqrt(3x-6) - 2 answers would be y<= (-2) y>= (-2) y> (-2) y<=(2) I think the answer is y <= -2, correct I don't get this one at all: Solve...
*January 8, 2011 by Erica*

**business **

can you please check my answers to the questions i realy need to check them if they right or wrong
*February 15, 2012 by sososola2012*

** Algebra Can someone who is serious respond**

Can someone check my answer please? Find the corresponding y values for x= -2,-1,0,1,2,3 if y= x^-x-2. My answers are under Y. X Y -2 -4 -1 -2 0 -2 1 0 2 4 3 10
*November 20, 2007 by Alicia*

**college math**

Use sets to verify the following answers a. 4+5=9 B. 0+6=6 C. 10+2+12 I want to know if I'm doing this right. please check my answers. I'm confused on how to do this but I'm giving it a shot. A. a+b=c b. 0+2=a C. 5+5+2=12
*January 11, 2010 by sueann*

**English**

What are four things to look for when proofreading? My answers: Reading, grammar check, spelling check, and punctuation.
*March 13, 2014 by Jensen*

**math**

How would I come about to the solution and what the answers to the question so I can help my son with his school work? 1.Check all the answers that are square roots of 36 a. 36^1/2 b.-(36)^1/2 c.9 d.6 e.-6 f. √36 2.)Which answers are equal to the expression 2 x √9 ...
*June 7, 2011 by James*

**Algebra -Please check**

How do I simply 4^-1x^0/y^-1 possible answers: 1/4y 4y y/4 4 I really don't get these- but I think it might be y/4 because you take the negative to the top and the negative to the bottom, right?
*January 7, 2011 by Jessie*

**Algebra 1**

Write an equation in standard form of the line that passes through the given point and has the given slope m. Can someone check my answers (-2,6) m=1 -1x+y=8 (-7,8) m=-3 3x+y=-13 (9,-10)m=-4 4x+y=26 (-15,-4)m=1/2 -1/2x-y=23/2
*November 21, 2013 by Jynessa*

**Biology check my answers**

Please check to see if my answers are right: we need to list the 6 kingdoms with their characteristics and an example each Eubacteria -"true bacteria": bacilli Monera- prokaryote ,: Cyanobacteria Protista- single cell, true nucleus :amoeba Plantae- photosynthetic :roses Fungi...
*October 18, 2014 by Grey*

**Calculus (pleas help I really need to check this)**

Assume that each of the follwing functions gives the position of an object at time t. Find the velocities indicated by setting up and evaluating a limt algebraically. (a) s(t) = 3t^2, Find v(-1). (b) s(t) = 1/t , Find v(2). (c) s(t) = square root of t, Find v(1). The answers ...
*February 17, 2011 by Catherine*

**Algebra**

Check these answers? ? 3x + y = -8 My answer: y=-11 2x - y = 11 My Answer: y=13
*September 7, 2011 by Joshua*

**Pre-Calculus-check answers**

Which of the following results in the graph of f(x)=x^2 being expanded vertically by a factor of 3 and reflected over the x-axis? a) f(x)= (1/3)x^2 b) f(x)= -3x^2 c) f(x)= (-1/x^2)+3 d) f(x)=(-1/3)x^2 Answer: d Thanks for checking my answers
*August 10, 2008 by Lucy*

**algebra**

i have two answers to this problem so am not sure which way I need to do in or should say the order i should do it. lease help??????? problem is 7x-5+3x=6+x-10 what is the order to work this out there is no brackets to this problem 7x-x+3x=6+5-10 6x+3x=11-10 8x=1 ------- 8 8 x...
*April 29, 2007 by Anonymous*

**calculus**

Find the distance from (3,7,-5) to each of the following. a. the xy-plane b. the yz-plane c. the xz-plane d. the x-axis e. the y-axis f. the z-axis **I just wanna check my answers because I didn't really understand it when the teacher was explaining it and it's an even ...
*April 7, 2007 by jean*

**other Quadratic equations**

The problem is 7x^3-x+1=x^3+3x^2+x. Find all real answers. I came upwith two answers 3x^2=1 and 2x=1/2. The first answer just does not look right. I must be forgeting something! You can check them by putting in x=1/4 (the second answer), and then x=+- sqrt(1/3) These are three...
*January 27, 2007 by theresa*

**Algebra-please check my work**

check my answers please. Use the Intermediate Value Theorem to determine whether the polynomial function has a real zero between the given integers. f(x) = 2x3 + 10x2 - 8x - 5; between 1 and 2 -I got: f(1)=1 and f(2)=35;no Determine the maximum possible number of turning ...
*October 15, 2007 by emma*

**math algebra **

adding with mixed numbers Can you check my answers: 1) 4 1/4 + 3 1/12 I GOT: 7 1/3 2) -7 1/2 + 5 2/3 i got -3 1/6 3) -3 4/5 + (-4 7/10) i got -6 1/2
*August 1, 2012 by marko*

**Algebra (check answers)**

Could you please check my answers we are using substitution to solve each system of equations. And at the end of every solution you are supposed to have an answer as a coordinate. 1. x=2y x+y=3 Answer (1,2) 2. 2y=3 x-y=10 Answer: (10,10) 3. y=x+7 x+2y= -21 Answer: (-3,-4) 4. ...
*April 27, 2009 by Stacie*

**Algebra-Please check my answers**

Posted by Jessie on Monday, October 18, 2010 at 3:48pm. I think I figured it out-please check I'm really stuck on these problems- Simplify 6xy(3xy)^-2? I think this is 2/3xy choices were 2/xy 3xy 2xy 2/3xy Simplify 12xyz^-2/8x^-2z choices were 3x^2y/2z^3 3x^3y/z^3 3x^3y/2z^3 x...
*October 18, 2010 by Jessie*

**Algebra-Please check my answers**

Posted by Jessie on Monday, October 18, 2010 at 3:48pm. I think I figured it out-please check I'm really stuck on these problems- Simplify 6xy(3xy)^-2? I think this is 2/3xy choices were 2/xy 3xy 2xy 2/3xy Simplify 12xyz^-2/8x^-2z choices were 3x^2y/2z^3 3x^3y/z^3 3x^3y/2z^3 x...
*October 18, 2010 by Jessie*

**Algebra**

Debbie finished her algebra test early so she decided to check each of her answers. After checking her answer to question #10, she realized she made a mistake in her solution. In which step does Debbie make her mistake? Original Equation: 2 + 3y = 5(y - 2) Step One: 2 + 3y = ...
*September 25, 2013 by jacob*

**Math PLEASE HELP**

Please finish these questions so I can check my answers. All my answers are at the bottom. Adding and subtracting mixed numbers. Please finish these questions. The answer must be reduced to lowest terms! 1. 3 2/5 + 6 1/5= 2. 4 2/5 + 1/10= 3. 2 3/12 + 2 3/6= 4. 5 3/9 + 2 1/3= 5...
*December 1, 2010 by Pratigya*

**Algebra**

Will someone please check my answers? 1. Multiply. (a^+2ab-b^2)(a^2-7ab+b^2) my answer:a^4-5a^3b-14a^2b^2+8ab^3-b^4 2. Simplify. (p^6)^2 ________ P^8 my answer:p^4 No, you got the first wrong. Recheck . Yes on second.
*June 8, 2007 by jessica*

**Math check my answers**

I posted this before can someone please check my answers and help me thanks:) 2 rectangles have equal areas determine the area of each rectangle then use this info to determine the perimeter. rectangle one: length of 2p + 3 width of 3.8 after my work i got p= 1.5 so the area ...
*June 2, 2013 by Rihanna*

**algebra**

1. write an equation of the line that passes through the point and has the given slope. write the equation in slope-intercept form. a. (3,2), m=1/2 b. (-3,2), m=1/2 _______ answers: a. y=1/2x + 1/2 b. y=1/2x + 7/2 ______________________________________ 2. write an equation of ...
*October 18, 2009 by rachel*

**Algebra check**

Convert to exponential equations. 12.) m=log3 9 I have the answer as 3^m =9 13.) log2 64=6 I have the answer as 2^6 =64 Are these answers right?
*December 1, 2008 by Shawn*

**Algebra**

Could you please check my answers. 1- -6.8² = 13.6 2- (- square root 196) -14 3- Simplify (square root) 100/49 = 10/7 4- Find the quotient of (-7 / 3) = 3/2 Thank you
*August 15, 2014 by Faye*

**ALGEBRA! URGENT. Check Answers!**

1. 18x^2 + 6 + 4x - 15x^2 - 4 + 13x Answer: 3x^2 + 17x + 2 2. 3x^2 + 6 - 2x + 5x - 4x^2 + 9 Answer: -x^2 + 3x + 15 3. 3x^2 + 5x - 7x + 3 - 5x^2 + 2 Answer: -2x^2 + 2x + 5 4. In the expression -7x - 3x^2 + 5. What is the coefficient of x? Answer: I think it's 7 or -7 Thanks!
*May 27, 2014 by Claire*

**Algebra 2**

Hey, I don't understand this question I have honestly done this question about a good 3 times but never seemed to get the right answer. Please Help!!! Solve each equation by factoring. Check your answers. 7x^2=21x
*November 13, 2014 by Taylor*

**Algebra**

Suppose a triangle has angles A,B, and C. Angle C is the right angle. Find the measures of the other sides to the nearest whole number. < means angle symbol. 1.BC=9,m<B=72 degrees I got angle AB=28 and angle AC=29 To solve these problems you find either the sine, cosine...
*April 1, 2008 by Casey*

**Chemistry (URGENT)**

I have a test soon. If you can help me with these questions, that would be great. 1. Define and describe the following. a)Alkaline - metal - base b)Corrosive - burn/eat away - acid c)Caustic - harsh - both? (acid + base) d)Low pH - 0-6.99 - acid Please check my answers and ...
*March 3, 2010 by John*

**Calculus - please check my work**

Differentiate each function a) y = -3x^2 + 5x - 4 b) f(x) = 6/x - 3/(x^2) c) f(x) = (3x^2 - 4x)(x^3 + 1) the answers i got for each was: a) y'= -6x + 5 b) f'(x)= -6/x^2 + 6/x^3 c) f'(x)= 15x^4 + 6x - 16x^3 - 4 please double check and let me know if these are correct, thank you.
*June 18, 2012 by Henry*

**math 1st grade can you check the answers**

can you check this set of answer {10,14,18,22,26} mean=18 median=18 mode =no mode
*March 24, 2009 by brown*

**Math check**

The middle 69% of a normally distributed population lies between what two standard scores? (Give your answers correct to two decimal places.)0.31 and 1.69 was my answers and they are wrong????. .
*June 15, 2013 by Tom 6*

**Algebra-Please check**

5 - sqrt of 20x + 4 >= -3 5- 20x + 4 >= -3 5-4 - 20x >= -3 1 - 20x >= -3-1 -20x >= -4 x<= -15 Possible answers are x<=3 -1/5 <= x<= 3 x >= -1/5 x >= 0 I think it is -1/5<=x<=3 because both solutions work
*October 12, 2010 by Juliette*

**Algebra**

Hi! I just want you to check if my answers are correct. Factor the expressions: 1. 15a^2(b-2)^2 + 20a^3(b-2)^3 = my answer is 5a^2(b-2)^2 [3 + 4a(b-2)] 2. 18p^2q^3 (r-6)+ 24(r-6) = my answer is 6(r-6)[3p^2q^3 + 4] 3. 24(x-y)^2 + 48(y-x) - 72(x-y)^3 = my answer is 24[(x-y)^2 + ...
*July 9, 2012 by Anonymous*

**Algebra-Please check my calculations**

Could you please check my answers and help with the ones I can't figure out- 1. Solution to the radical function sqrt(1/2x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2 - 8x = 0 x(x-8) = 0 x = 0 x-8 =0 x=8 the ...
*October 19, 2010 by JayLynne-I had misprint in previous posting*

**French(easy question)**

Translate all this french into english. I did all of it at the bottom. Please do it as well so I can check my answers. Check my answers as well. Thanks. On passe un bon film au Gaumont. On y va? Pas possible. J'etudie pour l'interro, demain. D'accord. Alors, a demain. My ...
*November 8, 2010 by Pratigya*

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