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Question 856275: find the equation of the line that is perpendicular to the line x-3y-7=0 and passes through the point (9,-3)in standard form and general form

Click here to see answer by lwsshak3(11628)

Question 856377: I am currently stuck on this problem the equation is 6v^2+19v-36=0 i understand that i need to factor but I just can't get to the answer, i have tried (3v+3)(2v+12) but i can't get it.. Please help(:
Click here to see answer by Alan3354(69443)

Question 856378:
A= the balance of the account
P= the principal (beginning amount)
r= the interest rate (percent as a decimal)
n= # of times interest is compounded each year
t= # of years the account has been active.
Catherine opened an account at a bank and was offered to the chance to compound her account daily. She started her account with $1000 and has the interest rate, 6%.

What equation could model this ? Thanks for any help.
Click here to see answer by josgarithmetic(39616)

Question 856427: Through (9,-4), perpendicular to -5x-4y=-29
Click here to see answer by mananth(16946)

Question 856404: Hi, I need help on getting this answer
Solve for x and y by elimination or substitution

Click here to see answer by mananth(16946)

Question 856404: Hi, I need help on getting this answer
Solve for x and y by elimination or substitution

Click here to see answer by KMST(5328)

Question 856474: How do I work out
3x squared - 75?
Click here to see answer by chndnbl(31)

Question 856489: Two sisters, Janet and Nora, each have a box holding 20 chocolates. Janet eats 5 and gives some away to her friends. Nora gives 1 away and eats three times as many as Janet has given away. When they compare boxes, each sister still has the same number of chocolates left as the other. If Janet gave x chocolates away, form an equation in x and solve it. How many chocolates did Nora eat?
Click here to see answer by josmiceli(19441)

Question 856615: I need help with solving systems of equations
So the first method i need help with is elimination, here is the problem
{15x-5y=30
{y=2x+3
Then i need help with the second method the graphing method
it is the same system as you see above
Click here to see answer by ewatrrr(24785)

Question 856689: Please help I'm stuck { { { (-b-10y/2b)+(9b-9y/2b) } } }
Click here to see answer by rothauserc(4718)

Question 856720: Please help me solve this equation Thank you
Factor 4Q from the following expression
4Q-2Q^2
Click here to see answer by josmiceli(19441)

Question 856732: how do you slove in combination/elimination method :
-4x - y = -6
4x + 3y = 18
Click here to see answer by jim_thompson5910(35256)

Question 856730: How do I complete this equation. My textbook does not explain it. Could you please show the steps. Thanks.
x(x=12=30+x(x+3)
Click here to see answer by jim_thompson5910(35256)

Question 856191: -19 = 3u + 2
Click here to see answer by tommyt3rd(5050)

Question 856655: The sum of y/3 and 4y/9 when y=7
Click here to see answer by Fombitz(32388)

Question 856914: 3/4x - 2/5 = 2 solve for X
Do I need to find a common Denominator for all including 2? or is there another way of doing this?
thanks,
Click here to see answer by mananth(16946)

Question 856914: 3/4x - 2/5 = 2 solve for X
Do I need to find a common Denominator for all including 2? or is there another way of doing this?
thanks,
Click here to see answer by Fombitz(32388)

Question 856846: Elimination method
x + y - z = 4 ��.(1)
x � 2y + 2z = -5 ��.(2)
2x � y + 2z = -2 ��.(3)

Click here to see answer by Fombitz(32388)

Question 856962: What is the greek phrase used by ancient pythagoreans as a way to emphasize the their argument was valid since in originated from pythagoras himself/
Click here to see answer by richwmiller(17219)

Question 856999: 170+335+430=560
(50000/170)+(50000/335)+(50000/430)
294.11 149.23 116.27 = 559.61
I would like to do a formula for an excel sheet to automatically work out one of
the answers while entering the other two.
What formula can I add in my Excel sheet to find 'x' ? pls. 180+325+x=560
Thx

Click here to see answer by Fombitz(32388)

Question 856769: CAN YOU PLEASE HELP ME COLLECT LIKE TERMS NOT SURE IF I ANSWER CORRECTLY
AC-AC= A^2-c^2
Click here to see answer by Fombitz(32388)

Question 857026: 12x - 35x +5 + 4t=s
Click here to see answer by Fombitz(32388)

Question 857051: x^2-8x-20=0 Solving for indicated variable. State type of factoring.
Click here to see answer by Fombitz(32388)

Question 857046: a=1/2h(b+b); a=70, b-6, b=1 solve for h

Click here to see answer by Fombitz(32388)

Question 857156: Hallo can you please help solving and explain how to do this maths, I will show you an example etc. 2x-y=5 now I must work out three values for the variables. I have to put it on a graph but that is not the problem. I want to know how to work the three values out please.
Click here to see answer by rvfer(117)

Question 857181: Please break down this equation for me. I don't really understand it. 56-7x=2
I came up with that x=-54/-7
Click here to see answer by Fombitz(32388)

Question 852285: if j+25 (numerator) over 15 (denominator) = 0 , what is the value of j ?

Click here to see answer by Diana541(24)

Question 857334: Which quadratic equation has roots -2 and 3
Click here to see answer by Fombitz(32388)

Question 857335: Which quadratic equation has roots -2 and 3
Click here to see answer by Fombitz(32388)

Question 857411: equation Ax=By=C
(-3,4),(-4,-8)
Click here to see answer by Fombitz(32388)

Question 857387: Is this as far as it goes!
12x t 3y = 6
-12x. -12x
3y=-12 t 6
Divide each side by 3
Y= -4x t 2
Click here to see answer by Alan3354(69443)

Question 857567: 4(x+3)=4x+12
Click here to see answer by richwmiller(17219)

Question 857645: What is the answer for b if the equation is -(2b-5)+b=4-2 (b+1)
Click here to see answer by josgarithmetic(39616)

Question 857700: if x+1/y=1 & y+1/z=1 then prove that z+1/x=1
Click here to see answer by Fombitz(32388)

Question 857708: Write 8x^2 - 7y^2 = 56 in standard form.
Click here to see answer by Fombitz(32388)

Question 858088: A book has a length of (b+2) inches and with a width of b inches. Write a simplified expression for the perimeter of the book.
Click here to see answer by jim_thompson5910(35256)

Question 858140: 4(x - 15) = 172
Click here to see answer by JulietG(1812)

Question 858149: Christine is a toll booth worker for the Abraham Lincoln memorial tollway and she wants to figure out how much money will be made in a three hour time period. For each eighteen wheeler that passes through her tool booth the vehicle is charged $2.75. For any other automobile the vehicle is charge eighty cents less than an eighteen wheeler. if there were 90 total vehicles that passed through the toll booth during this time period and there were 12 fewer eighteen wheelers than other kinds of automobiles that paid the toll, how much money was made at Debbie's toll booth during this time period?
Click here to see answer by JulietG(1812)

Question 857290: Find the value of X and Y from the given equation : sqrt(X)+Y=7 & sqrt(Y)+X=11

Click here to see answer by tommyt3rd(5050)

Question 858292: 1. During a downhill ski race, the distance (in yds) a skier has travelled since leaving the starting gate follows this quadratic equation: d=5t^2+32t+1000 where t is the time in seconds measuring her run. After how many seconds has she skied 2,000yds?
I have tried this question and keep getting stuck. please help
Click here to see answer by rothauserc(4718)

Question 858306: There are 18 boys in the class. There are w fewer boys than girls. How many students are in the class?
Click here to see answer by KMST(5328)

Question 858375: x2+5y−4=0
y−x=−2
How do i change x^2+5y-4=0 into a circle equation and y-x=-2 into a line equation?
This is for systems of equations with circles, solving by graphing. Thanks for your time!
Click here to see answer by Alan3354(69443)

Question 858474: 12+7(x+4) collecting like terms? how do i work this out
Click here to see answer by jim_thompson5910(35256)

Question 858493: Its basically a word equation: Explain in words how you would solve for X in . (solve the equation first and explain each step.)
If you can help me as soon as possible it would be great. THANKS :)
Click here to see answer by josgarithmetic(39616)

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33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580