Number of results: 89
mathhh
So its A?
Saturday, December 31, 2011 at 12:10pm by John
mathhh
Yes.
Monday, April 4, 2011 at 11:10am by Ms. Sue
MATHHH
Thanks a million!
Monday, January 17, 2011 at 12:41pm by Chelsea
mathhh
Yes.
Wednesday, October 13, 2010 at 8:02pm by Ms. Sue
MATHHH
^(x+1) my bad =]
Sunday, December 13, 2009 at 10:06pm by Cyn
mathhh
im not sure
Sunday, May 13, 2012 at 3:11pm by shab
mathhh
helllppp wannnteddd
Thursday, February 10, 2011 at 7:05pm by pavleen
mathhh
Solve 4^x + 15(4)^-x = 8
Wednesday, January 27, 2010 at 9:17am by Anonymous
mathhh
Solve 4^x + 15(4)^-x = 8
Wednesday, January 27, 2010 at 9:00am by Anonymous
MATHHH
I agree. Quidditch is right!!
Sunday, December 13, 2009 at 10:06pm by Reiny
MATHHH
Solve: (log2 8)^x - (log9 3)^x+1 = 0
Sunday, December 13, 2009 at 10:06pm by Cyn
mathhh!
no were not allowed to use calculators
Thursday, August 13, 2009 at 1:13pm by chrissy
mathhh!
(x-1)^2 + (x+2)^3 >= 0 hellppp?! how do i solveee?
Thursday, August 13, 2009 at 1:13pm by chrissy
Mathhh!!!
I don't see any k in your expression, check your typing
Monday, April 30, 2012 at 4:11pm by Reiny
mathhh again!!!!!
Is this it? And what do you want to do with it? {[2x/(x^2-4)]/(4/x^2-4x+4)} + [12/(x^2-4)]*[(2-x)/3]
Tuesday, June 10, 2008 at 5:10pm by DrBob222
mathhh again!!!!!
2x 4 12 (2-x) --- / ---- + ---- X --- (x^2-4) (x^2-4x+4) (x^2-4) 3
Tuesday, June 10, 2008 at 5:10pm by amy
help mathhh!!!
which one would represent the water with no current?
Thursday, December 13, 2012 at 3:58pm by erin
MATHHH!!!! PLEASE HELP
setup a t, r, and d table
Wednesday, October 24, 2012 at 9:58pm by da cool kid
mathhh
average rate of change? What is the starting point?
Sunday, May 13, 2012 at 3:11pm by bobpursley
MATHHH
The equation is actually 3^x^2 + 20 = (1/27)^3x
Sunday, January 16, 2011 at 12:42pm by Alicia
mathhh
what is the answer for 4x+27=3x+34
Wednesday, October 13, 2010 at 8:02pm by berry
mathhh!
Hmmmm. Can you graph it with a calc? You can see where it is positive.
Thursday, August 13, 2009 at 1:13pm by bobpursley
Mathhh?
Write the number for 2 hundred plus 5 tens 0 ones
Wednesday, February 20, 2013 at 4:51pm by Jazzy
help mathhh!!!
come on. the water has a current. I said b was the speed of the boat.
Thursday, December 13, 2012 at 3:58pm by Steve
mathhh
If I were you I would go way out on a limb and pick A
Saturday, December 31, 2011 at 12:10pm by Damon
math grade 10 mathhh
OMGGG THANK YOU SOO MUCH!!!!!!!! :):):):):):)
Wednesday, December 23, 2009 at 10:16pm by alyssa
mathhh!
The last line should read: f(x)≥0 for x∈ [-5.4734...,+∞)
Thursday, August 13, 2009 at 1:13pm by MathMate
mathhh
x y -1 1 0 4 1 7 2 10 3 5 i got the answer it 13 and 15 what duhh rule
Thursday, February 10, 2011 at 7:05pm by pavleen
Mathhh!!!
find the value of k such that when 2x^3 +9x^2+x-15 is divided by x+5, the remainder is 0.
Monday, April 30, 2012 at 4:11pm by rania
mathhh
ooh ohk so yu subract 3x from both sides right?
Wednesday, October 13, 2010 at 8:02pm by berry
MATHHH
Sorry, did not read the question carefully enough. Go with MathMate's answer.
Sunday, December 13, 2009 at 10:06pm by Reiny
mathhh!
I think it is positive for any x greater than x = -5.5 approximately. It has a minimum at x = -.88 but that above the x axis
Thursday, August 13, 2009 at 1:13pm by Damon
Mathhh?
You've been shown how to do similar problems. Not it's your turn. I'll be glad to check your answer.
Wednesday, February 20, 2013 at 4:51pm by Ms. Sue
mathhh
which two points of a trignometric function will always give an average rate of change of 0?
Sunday, May 13, 2012 at 3:11pm by shab
MATHHH
Thank you for the help, I'm really stuck on c. The x was made capital by mistake, it's actually supposed to be lower case.
Sunday, January 16, 2011 at 12:42pm by Alicia
mathhh
I showed you how to do this kind of problem. Now it's your turn. I'll be glad to check your answer.
Wednesday, October 13, 2010 at 8:02pm by Ms. Sue
mathhh
Which property is illustrated by the equation (rs)t=r(st)? A) associative B)Communtative C)Distributive D)Identity Help me please
Saturday, December 31, 2011 at 12:10pm by John
mathhh
factor the expression below using the greatest common facror 12n^5 + 8n^3 +6n
Monday, April 18, 2011 at 6:38pm by pableen
mathhh!
no, but the directions above the question say to solve the inequality and write the solution in interval notation
Thursday, August 13, 2009 at 1:13pm by needs help
mathhh again!!!!!
yess thats it .. it has to be expressed in simplest form - im sorry for the misunderstanding thank you very much for any help that you can give
Tuesday, June 10, 2008 at 5:10pm by Anonymous
mathhh
Associative Property: When three or more numbers are multiplied, the product is the same regardless of the grouping of the factors. For example (2 * 3) * 4 = 2 * (3 * 4)
Saturday, December 31, 2011 at 12:10pm by Damon
MATHHH!!!! PLEASE HELP
setup a table for both trains one at x other at x+12 total distance 174 time 1.5 hours
Wednesday, October 24, 2012 at 9:58pm by Sanya
mathhh ;
Solve for x by factoring the first equation. Use the same procedure that I have tried to explain when answering your previous questions.
Friday, October 24, 2008 at 4:32pm by drwls
mathhh
if its adding do yu subtract nd if its subtract do you add??
Wednesday, October 13, 2010 at 8:02pm by berry
Mathhh/Triggg
Determine sinx tanx-sinx=0 for 0≤ x < 360°.
Tuesday, January 4, 2011 at 12:48am by Tabby
mathhh
one number is 2 more than 3 times another . their sum is 22 . find the number 4,18
Wednesday, August 25, 2010 at 4:20pm by anonymous
MATHHH
Determine the exact value of x. a. 3^2x = 5(3^x) +36 b. (1/8)^x-3 = 2x16^2x+1 c. 3^x2 + 20 = (1/27)^3X
Sunday, January 16, 2011 at 12:42pm by Alicia
mathhh
fist no. -- x 2nd no. -- 3x+2 3x+2 + x = 22 4x = 20 x = 5 so one is 5, the other 17 Your numbers do not satisfy your condition.
Wednesday, August 25, 2010 at 4:20pm by Reiny
MATHHH HELPPPP
3b+7=-2 14+h/5=2 h/5=fraction m/8+4=16 m/8=fraction 3x-1=8 35=3+5x -3+m/3=12 m/3=fraction -x-4=-20 5=-z-3
Tuesday, October 11, 2011 at 9:49pm by KATIE
mathhh
You select 8 cards randomly from a deck of 52 cards. What is the probability that all of the cards selected are face cards (i.e. jacks, queens, or kings)
Wednesday, February 15, 2012 at 10:43pm by help please
mathhh!
My teacher said we are supossed to solve this using systems of equations: Let a, b, and c be real numbers such that a-7b+8c=4 and 8a+4b-c=7. Then a^2-b^2+c^2= ? can someone please help?! i don't know what method to use to solve this or where to start
Sunday, September 13, 2009 at 7:46pm by chrissy
MATHHH
Quidditch is right. I did not work with the revised version of the question, and in any case log93 should have been 1/2. Work with Quidditch's reponse.
Sunday, December 13, 2009 at 10:06pm by MathMate
MatHHH
4. Evaluate the following, give exact value when possible. a. sec(225) = 2.72 b. sin(-15) – 0.065 c. sin(75) = -0.39 Are these the correct answers? I feel like there should be an equation... I'm confused
Wednesday, January 19, 2011 at 4:51pm by Chelsea
mathhh
change bases to 2 2^2x + 15*2^(-2x)=2^3 2^(4X) +15=2^(3+2x) Which is going nowhere.... I will have to think on it.
Wednesday, January 27, 2010 at 9:17am by bobpursley
help mathhh!!!
if the boat has speed b and the river has speed r, 2.3(b+r) = 26 3.7(b-r) = 26 b=9.2 r=2.1
Thursday, December 13, 2012 at 3:58pm by Steve
MATHHH HELPPPP
The only ones that could give you problems are the ones containing fractions, the others are trivial I will do the 2nd 14 + h/5 = 2 multiply each term by 5, which is the LCD 70 + h = 10 h = -60 do the other fractional ones the same way
Tuesday, October 11, 2011 at 9:49pm by Reiny
mathhh
two angles are complementry. one angle measures 50 degrees what is the measurement of the other angles 180-50=130 so it 130
Thursday, August 26, 2010 at 1:27pm by anonymous1
mathhh
Let 4^x = y. Then your equation can be rewritten y + 15/y = 8 or y^2 -8y +15 = 0 which factors to (y-5)(y-3) = 0 y = 5 or 3 If y = 4^x = 3, then x ln 4 = ln 3 x = ln 3/ln 4 = 0.7925 Now solve for the other root (when y=5) yourself.
Wednesday, January 27, 2010 at 9:00am by drwls
mathhh again!!!!!
You aren't following instructions very well. LOOK AT YOUR POST and you will see that you can't space it this way. Look back at your original post for my suggestion on how to post a problem of this kind. We can't help if we can't make heads or tails of the ...
Tuesday, June 10, 2008 at 5:10pm by DrBob222
mathhh
12!(52-8)!/(52!)(12-8)! check that. It should be 12/52 * 11/51* 10/50*9/49*....* 5!/45
Wednesday, February 15, 2012 at 10:43pm by bobpursley
mathhh ;
1. 4x^2-16=0 4x^2=16 [what do i do now?]
Friday, October 24, 2008 at 4:32pm by margiee (: !
mathhh!
A cubic has to have at least one real root. It starts negative and ends positive if the coefficient of x^3 is positive. If it has more than one, it has three. I believe this one has only one and the other two are complex.
Thursday, August 13, 2009 at 1:13pm by Damon
mathhh again!!!!!
Since you agreed with DrBob's way of writing your problem, let's take it in parts The first term reduces to [2x/((x+2)(x-2))]*[(x-2)(x-2)/4 = x(x-2)/[2(x+2)] the second term [12/(x^2-4)]*[(2-x)/3] = 12/[(x-2)(x+2)]*(2-x)/3 = -4/(x+2) using a common denominator of 2(x+2...
Tuesday, June 10, 2008 at 5:10pm by Reiny
MATHHH
log2(8)=3 log9(3)=0.5 So, (3)^x = (0.5)^(x+1) ln of both sides (x)(ln(3) = (x+1)(ln(0.5) (ln(3) - ln(0.5))(x)= ln(0.5) calculate ln(3) and ln(0.5) solve for x
Sunday, December 13, 2009 at 10:06pm by Quidditch
mathhh again!!!!!
ok ill do it like this ... 2x over x squared - 4 divided by 4 over x squared - 4x + 4 plus 12 over x squared - 4 multiplied by 2-x over 3
Tuesday, June 10, 2008 at 5:10pm by amy
mathhh!
What you'd like to do is to solve the simultaneous equations a-7b+8c=4 8a+4b-c=7 for a and b in terms of c. Substitute the values of a and b in the expression a²+b²+c² and wait for the magic to happen. If you do your math correctly, magic will ...
Sunday, September 13, 2009 at 7:46pm by MathMate
Mathhh
what is PSU's (penn state university)"annual scholarship" i have to fill out the yearly tuition & the room and board amount which all equals to $36,144. I need the annual scholarship amount but idk where to find that information...
Monday, May 30, 2011 at 5:49pm by surfsupmel
MatHHH
a. sec(225) = 1/cos(225) = -sqrt(2), 3rd QUAD. b. sin(-15) = sin(345) = -0.2588,4th QUAD. c. sin(75) = 0.9659,1st QUAD
Wednesday, January 19, 2011 at 4:51pm by Henry
MATHHH
d) i = .10/12 = .008333.. PV = 9000 = x(1.008333)^-1 + x(.008333)^-2 + ... + x(1.008333)^-60 e) 9000 = x[1 - 1.008333^-60]/.083333 9000 = x(47.0654126) x = 191.22 f) that's all yours, I don't have one of those.
Monday, January 17, 2011 at 12:41pm by Reiny
MATHHH!!!! PLEASE HELP
Monico needs to mix a 40% ethanol solution with a 60% ethanol solution to create 100 millileters of a 54% solution. How many millileters of each solution must Monico use?
Tuesday, October 30, 2012 at 4:56pm by Anonymous
mathhh
When you move a positive to the other side of the equation it becomes a negative, and vice versa. For instance, in your problem, you want to subtract 3x from both sides. You want to subtract 27 from both sides. 4x+27=3x+34
Wednesday, October 13, 2010 at 8:02pm by Ms. Sue
mathhh!
(x-1)^2 + (x+2)^3 >= 0 Use foil to simplify. x^2 -2x +1 + x^3 + 6x^2 + 12x + 8 >=0 (For any a and b, (a+b)^2 = a^2 + 2ab + b^2 and (a+b)^3 = a^3 + 3ab^2 + 3a^2b + b^3) Combine like terms. x^3 + 7x^2 + 10x + 9 >=0 However...I cannot find any rational roots ...
Thursday, August 13, 2009 at 1:13pm by Marth
MATHHH
a) let 3^x = y so you have y^2 - 5y - 36=0 (y-9)(y+4) = 0 y = 9 or y = -4 3^x = 9 3^x = 3^2 x = 2 or 3^x = -4 , not possible b) the trick here is to see that all bases are powers of 2 1/8 = 2^-3 16 = 2^4 so (1/8)^(x-3) = 2x16^(2x+1) (2^-3)^(x-3) = 2(2^4)^(2x+1) 2^(-3x+9) = 2(2...
Sunday, January 16, 2011 at 12:42pm by Reiny
Mathhh!!
Sally deposited $3600 and the annual rate of interest is 6.5%. What is the interest amount for a 30-month period? I = prt. I = amt of interest p = principal r = rate (0.065 per year) t = time in years = 2.5 years I = 3600*0.065*2.5 = ??
Saturday, March 31, 2007 at 10:18pm by Cindy
mathhh
If the radius of this cylinder is doubled, its volume will be twice as much four times as much eight times as much is it four times as much?
Monday, April 4, 2011 at 11:10am by danny
math grade 10 mathhh
A map shows a main gas pipeline running straight from A(45,60) to B(65,40) a) Is the point C(63,54) on the branch pipeline? Explain your reasoning b) What is the shortest route for connecting point C to the main pipeline.Explain **OMGGGG PLZZZ HELPPP, THANK YOUUUUUU!!!!!!!!!!!
Wednesday, December 23, 2009 at 10:16pm by alyssa
MATHHH
Note that log28 = 3 and log93 = 1/3 Substitute y=3^x, then y - 1/y +1 =0 which transforms to a quadratic equation for which y can be solved. Since a^x > 0 for a>0 and x∈ℝ, one of the solutions where y<0 has to be rejected. Continuing ...
Sunday, December 13, 2009 at 10:06pm by MathMate
MATHHH
Isn't log28 = 3 ? so your equation becomes 3^x - 3^(x+1) = 0 3^x(1 - 3) = 0 -2(3^x) = 0 3^x = 0 no real numbers satisfies that equation. (3 raised to what number equals zero ?? try x = -100, then 3^-100 = 1.94 x 10^-48 , pretty small and close to zero, but not zero. x ...
Sunday, December 13, 2009 at 10:06pm by Reiny
MATHHH!!!! PLEASE HELP
An eastbound train and a westbound train meet each other on parallel tracks heading in opposite directions. The eastbound train travels 12 miles per hour faster than the westbound train. After 1.5 hours, they are 174 miles apart. At what speeds are the two trains traveling? ...
Wednesday, October 24, 2012 at 9:58pm by awade
MATHHH!!!! PLEASE HELP
check my reply in your previous posting of the same question http://www.jiskha.com/display.cgi?id=1351128127
Wednesday, October 24, 2012 at 9:58pm by Reiny
Mathhh
I doubt if there's a specific amount. Check out this site. http://www.psu.edu/studentaid/scholarships/pssch1a.shtml?reload You can also call or email the Office of Student Aid.
Monday, May 30, 2011 at 5:49pm by Ms. Sue
mathhh
Nope. http://www.mathsisfun.com/geometry/complementary-angles.html
Thursday, August 26, 2010 at 1:27pm by Ms. Sue
MathHH
I had given you the formula to use in http://www.jiskha.com/display.cgi?id=1295098022 I don't understand what you are doing in your post I gave you amount = payment [(1+i)^n - 1]/i , so .... = 100 (1.005^60 - 1)/.005 = 6977.00
Sunday, January 16, 2011 at 12:44pm by Reiny
MATHHH
Mike wants to buy a snowmobile. His parents decide to lend him $9 000 at 10%/a, compounded monthly, if he agrees to repay the amount by making equal monthly (at the end of the month) payments for five years. d. Write the series that represents the present value of the annuity...
Monday, January 17, 2011 at 12:41pm by Michelle
help mathhh!!!
A boat travels down the river in 2.3 hours. The return trip up river takes 3.7 hours. A one way trip down or up river is a distance of 26 miles. If the boat is traveling at maximum speed, what is the boats speed measured in waters with no current? You need to use systems to ...
Thursday, December 13, 2012 at 3:58pm by erin
MATHHH!!!! PLEASE HELP
If there are x ml of 40%, then there are 100-x ml of 60%, since the total is 100 ml. So, consider the amount of ethanol. The volumes in each part must add up to the volume in the total. .40x + .60(100-x) = .54(100) x = 30 so, 30ml of 40%, 70ml of 60% check: .4*30 + .6*70 = 12+...
Tuesday, October 30, 2012 at 4:56pm by Steve
MathHH
Is this answer correct? Jeremy is in Grade 8. He has a paper route and wants to save for his college education. He determines that he has $100 per month to put into an account at 6%/a compounded monthly. How much will he have at the end of five years for his college education...
Sunday, January 16, 2011 at 12:44pm by Alicia
Math
Can someone explain to me.... when you are graphing number sets.... when do you use open/ closed cirles.... When do you use arrows?... What are intergers??? Thanks, ummm kbye<33=]]]] i dont like mathhh its kinda gayy can u stop... you are not helping... BYE! I'm not...
Wednesday, September 13, 2006 at 6:37pm by Capi
mathhh!
Chrissy, could you verify if the second term is to the third power or is it just squared? They are completely different problems. I will assume the second term is still cubed. You probably mean you cannot use calculators to solve the equation directly? I hope you are allowed ...
Thursday, August 13, 2009 at 1:13pm by MathMate
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