Help with this algebra homework?
So -14x+6y=4 just simplify to -8x+3y=2 Now go to the other problem and do this 6x-10=8 So 6x=18 hence x=3 Just plug the 3 back in and then you have your awnser. x=3 y=7.666 repeated.
Help on Algebra Homework?
your x*2 = x^2 (^=Shift +6 on the keyboard) 2x+30+x*2 + 2x + 10 + 8x -- 10 + x*2 + 10 = 360 12x + 2x*2 + 40 = 360 (Correct so far) 6x + x*2 = 160 (you subtracted 40 on both sides and then divided by 2, but there's an faster, easier/less complicated way to do this) 6x + x*2 -- 160 = 0 I see.... so let's rearrange this a bit x^2 + 6x - 160 , find factors of -160 that will equal to 6 in this case it's -10 and 16. so (x-10)(x+16) or (x+16)(x-10) will work either way since result is the same when you FOIL it
I need help on my algebra homework?
Find two polynomials with a sum and product that have the following degrees. if you cannot find the polynomials, explain why? A) the sum has degree of 3 and the product has degree 6.
Help with Algebra Homework!!!?
I can't figure out how to solve my algebra homework... It's a picture, but i'll explain it to you in words. A big chicken and a medium-sized chicken weigh 10.6 kilograms. A big chicken and a smaller chicken weigh 8.5 kilograms. A medium-sized and a smaller chicken weigh 6.1 kilograms. What is the total weight of all three chickens? Please help me. I don't know how to solve it! How would you do this problem? And what's the answer?
Algebra homework, please help?
A man sold x similar books for $132 altogether. If he had sold (x - 1) books but charges $1 more for each book, he would have received the same amount of money. Find the value of x. Please show your working and please give a reason for each step, if possible.
Linear Algebra homework help?
Remember that the dimension of the null space to a matrix is equal to number of non-pivot columns of the matrix. (a) Since A and B are stacked on top of one another, N(C) must be a vector subspace of both N(A) and N(B). (b) For a basis to N(D), note that any elementary row operation applied to A also applies to both blocks in D. Since A is invertible, we can row reduce to the identity. Hence, D is row equivalent to [I I], where I is the 4 x 4 identity matrix. Writing this out (using a zero column vector at the end to emphasize that we are finding a null space), we have [1 0 0 0 1 0 0 0|0] [0 1 0 0 0 1 0 0|0] [0 0 1 0 0 0 1 0|0] [0 0 0 1 0 0 0 1|0]. Solving in terms of the free variables x(5), x(6), x(7), x(8), we find that x(1) + x(5) = 0 ==> x(1) = -x(5) x(2) + x(6) = 0 ==> x(2) = -x(6) x(3) + x(7) = 0 ==> x(3) = -x(7) x(4) + x(8) = 0 ==> x(4) = -x(8). Hence, an arbitrary vector in N(D) has the form (-x(5), -x(6), -x(7), -x(8), x(5), x(6), x(7), x(8))^T. Letting any one free variable equal 1 and the others equal 0 yields the basis {(-1, 0, 0, 0, 1, 0, 0, 0)^T, (0, -1, 0, 0, 0, 1, 0, 0)^T, (0, 0, -1, 0, 0, 0, 1, 0)^T, (0, 0, 0, -1, 0, 0, 0, 1)^T}. Good luck!
How can I help my son with his algebra homework when I don't even understand it?
Hello,Algebra is an interesting topic for student and teacher both. It is a little complicated but a good mental exercise.If you don’t get an idea of how to help your child. I have a simple and effective solution for you. 15 ways to do Algebra homework efficiently.I will give some certain tips on how you can teach your child a very effective way.A formula is a key for Algebra and max math problem. That should be memorized by the student.Do homework in step by stepSilence is more importance for study. Always work on that your child should study in a silent environment.Doing homework with a friend is also a good Idea. They will discuss the question and answer when they got stuck.Visit some online website regarding mathematics problems. That will give a clear Idea.That all are regarding how to teach your child if you don’t understand Algebra or Math problems.Thanks for reading.
Algebra 2 homework help! conic sections?
Directrix x= -2 is a vertical line, indicating a horizontal parabola. Focus (4,4) lies to the right of the directrix, so the parabola opens to the right. The general form of a right-opening parabola is x-h = a(y-k)², 0
I really need help on algebra homework, can you help me?
1. on what intervals for x is f increasing? f(x)= -x^4+x-4 2. solve equation. xy-z=z+wx-3x 3. solve equation. (2x-1)^2(x-5)^2+(2x-1)^3(x-5)=0 4. which of the following expressions equals log4? 2log2 log8/log2 log8-log2 log4+log1 (log2)^2 5. solve simultaneous equasions. 2x+3y=8 x+2y=5 and y=x^2+2x+9 7x+y=19 If you can help me out with any of these questions, it will be greatly appreciated! Thanks