I need help on these math problems...?
84097
17.\n\ny+7=(8/3)(x-4)\n\ny=(8/3)x - (32/3) - 7\n\nr=(8/3)(-2) -(32/3) - (21/3)\n\nr=(-16-32-21)/3 = -23\n______________________________\n18. y-5 = 5(x-8)\n______________________________\n19. y-7 = 0(x--5) so y-7 = 0 so y=7\n______________________________\n20. y-2 = (1/2)(x-6)
571127
Try going to this website. The will explain it step by step and you can ask all the math questions you want. www.algebra.com
154380
I posted these sources earlier to someone else who was looking for math help.\n\nGood Luck!!
778763
1) (a - b)(x - y)\n2) (x^9 + y^3)(x^9 - y^3)\n3) (6x + 5)(x + 8)\n4) (x - 9)(x - 7)
1129355
Question 1:\n\n\n(-2)^2=(-2)(-2)=4\n4 * 4=16\n\n8(-2)=-16\n\n16-16=0\n\n3(-2)=-6\n0-6+6=0\n\nanswer:  zero\n\nQuestion 2:\n1/3* 3^6=3^5=243\n\nQuestion 3:\n30+825*30/1000+30*15/100\n=30+8,25 *3+4,5\n=59,25\n\n\nQuestion 4:\n598/100*100/26=23\n\nQuestion 5:\n4/5+3/4=16/20+15/20=31/20= 1,55
886843
(1)\nh = 3\nk = 4\n5 = a(0-3)² + 4\n5 = 9a + 4\n1 = 9a\n(1/9) = a\n\nY = (1/9)(x - 3)² + 4\n\n(3)\nY = (¼)x² + 4x -  7\nY = (¼)(x²+16x) - 7\n\n x² +16x = x² + 16x + (16/2)² - (16/2)²\n     = [x + (16/2)]² - (16/2)\n     = (x + 8)² - 8²\n     = (x + 8)² - 64\n\nY = (¼)[(x + 8)² - 64] - 7\nY = (¼)(x + 8)² - 16 - 7\nY = (¼)(x + 8)² - 23
958757
So lets start with the first one. Make a division problem with 9.0 on the outside and 0.9 on the inside. 9.0 does not go into 0 but does go into nine. Raise the decimal and the answer is ten. It's a bit difficult to explain but here's your answers and when you go in next time ask your teacher for help::\n1. 10 \n2. 8\n3. 4.7\n4. 3.2\nOkay theres a few for you and you should be able to figure out the rest. For the next part you take what x is equal to and divide it by 1.2. So for\n13. 40.8/1.2=34\nAnd do the same for the rest!!\nGood luck!
1075715
Here are two sites that look into the problem:\n\nhttp://www.kw.igs.net/~jackord/bp/f6.html\nhttp://math.fullerton.edu/mathews/N310/projects/e6.htm
1076304
(1) 1.3\n(4) 4\n(5) Right\n(6) 0\n(7) 0\n(8)0\n(9)12
12336
Try the BBC's Maths series and MathsFile as well as Math.com (see links below)
858552
Have you tried these?  Surely you've been told that division by 0 isn't possible, so there's your answer for 7.  I'm not doing any others on Yahoo answers (too many at once), but if you really need help and are willing to do as much as possible for yourself I'll help you if you email h_chalker@yahoo.com.au, but nasty Maths teachers like me won't just hand you 7 answers on a plate!
37738
try sosmath.com  they helped me before. if they don't have the answer you are looking for they have a list of links to tons of other math sites.  \n\nand there probably is someone on your campus that can help as well.  One on one help is always best...\n\nGood luck!
887199
1. fourteen minus the product of 3 and a number is 26\n14 - (3n) = 26\n14 - 26 = 3n\n-12 = 3n\nn = -4\n\n2. negative seven minus the product of 5 and number is 28\n -7 - (5n) = 28\n -7 - 28 = 5n\n -35 = 5n\nn = -7\n\n3. eleven minus the quotient of a number and 8 is 15\n11 - (n/8) = 15\n11-15 = (n/8)\n-4 = n/8\nn = -32\n\n4. negative sixteen plus the quotient of a number and 2 is 35\n-16 + (n/2) = 35\nn/2 = 35 + 16\nn/2 = 51\nn = 102
911425
Problem 1:\n2x² + 3x - 9 = 0\n(x + 3)(2x - 3) = 0\nx = -3, 3/2 ← Option 2)\n\nProblem 2:\nx² - 3x - 18 = 0\nSum of roots = -b/a \n= - -3/1\n= 3
909535
1) \n76>40+4c\n36>4c\nc<9\n\n2) 1500>100+17.5p\n1400>17.5p\np<80
51149
http://www.mathgoodies.com/\nhttp://www.gomath.com/\nhttp://www.mathnerds.com/mathnerds/\n\nhope these sites help you..happy studying!!
511709
Here is a link you may find helpful.\n\nhttp://www.math.buffalo.edu/mad/00.INDEXmad.html