Thursday
May 23, 2013

# Homework Help: Math: Algebra

Algebra
Solve the equation w=Cr^-2 for r. This is what I got so far.... w/C=r^-2 Then I think it's... ok so I don't really know. I want to put w/C=1/r^2 but the r is still not alone and I'm not sure where I'd take it from there. Please help.
Saturday, February 5, 2011 at 3:29pm

Physics- Algebra based
A diver springs upward from a board that is three meters above the water. At the instant she contacts the water her speed is 9.10 m/s and her body makes an angle of 80.0° with respect to the horizontal surface of the water. Determine her initial velocity, both magnitude ...
Saturday, February 5, 2011 at 3:07pm

Algebra
Divide: (-8y^7x+15y^7x^6)/(-2y^2x^5) I got y^5(-8+15x^5)/-2x^4 It won't let me add parens. in the answer any suggestions. It does say simplify your answer as much as possible.
Saturday, February 5, 2011 at 2:35pm

algebra
Subtract (1.5x^3+4.8x^2-3.7x)(-4.3x^3-4.5x^2+32)
Saturday, February 5, 2011 at 2:26pm

algebra
u-^8 positive exponent
Saturday, February 5, 2011 at 2:25pm

algebra
54r^14 -3r^7 find quotient
Saturday, February 5, 2011 at 2:24pm

Algebra
Use the remainder theorem to findvP(-2) for P(x)=2x^4+4x^3-5x^2+4. Specifically, give the quotient and the remainder for the associated division and the value of P(-2). Quotient= Remainder= P(-2)=
Saturday, February 5, 2011 at 10:21am

Abstract Algebra
Let f:A->B where A and B are nonempty. Prove that f(S1 U S2) = f(S1) U f(S2)
Saturday, February 5, 2011 at 9:04am

intermediate algebra
Divide: (-8y^7x+15y^7x^6)/(-2y^2x^5)
Saturday, February 5, 2011 at 9:02am

intermediate algebra
Multiply (2sqrt5 -1)(2sqrt10 -3)
Saturday, February 5, 2011 at 8:48am

Algebra
Find the slope of points (-2,2) and (2,1)
Saturday, February 5, 2011 at 8:26am

Algebra
Rewrite the following in simplified radical form. (sqrt24w^8) I got 4w^2sqrt6w is that right?
Saturday, February 5, 2011 at 8:04am

Charlie is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices. Company A charges \$127 and allows unlimited mileage. Company B has an initial fee of \$55.00 and charges an additional \$0.90 for every mile driven. For ...
Saturday, February 5, 2011 at 7:50am

algebra
example of simplest form of 4-1m-2n3/(2mn)-3
Saturday, February 5, 2011 at 5:40am

Algebra B
I am confused as to what the nth power is. Is it any number as an exponent that leaves the radicand the same? Could you please show me an example? thanks,
Saturday, February 5, 2011 at 2:19am

pre algebra
(6.3 X 10-2) - (2.1 X 10-1)
Friday, February 4, 2011 at 11:18pm

algebra 1A
solve please on a line graph y-5>-18
Friday, February 4, 2011 at 10:18pm

Algebra
Graph the parabola x^2+8x-5y+21=0
Friday, February 4, 2011 at 9:45pm

algebra
3³+53*(39)-(2+5*9)
Friday, February 4, 2011 at 9:39pm

Algebra
Restated:For each equation, determine whether its graph is symmetric with respect to the -axis, the -axis, and the origin. 4y^4+24x^2=28 and y=1/(x^2+5) Check all symmetries that apply x-axis,y-axis,origin or non of the above.
Friday, February 4, 2011 at 9:26pm

Algebra
For each equation, determine whether its graph is symmetric with respect to the -axis, the -axis, and the origin. 4y^4+24x^2=28 and y=1/x^2+5 Check all symmetries that apply x-axis,y-axis,origin or non of the above.
Friday, February 4, 2011 at 8:57pm

algebra
the expression below is the factorization of what trinomial -7(x+5)(x+8)
Friday, February 4, 2011 at 8:56pm

Algebra
Friday, February 4, 2011 at 7:11pm

Algebra
A 3 inch thick slice is cut off the top of a cube, resulting in a rectangular box that has volume 128in^3 .Round your answer to two decimal places
Friday, February 4, 2011 at 6:38pm

algebra
The principal P is borrowed and the loan's future value, A, at time t is given. Determine the loan's simple interest rate, r, to the nearest tenth of a percent. P=\$130, A=171.60, T=4 years
Friday, February 4, 2011 at 6:06pm

Algebra
Below is the graph of a polynomial function f with real coefficients. Use the graph to answer the following questions about f. All local extrema of f are shown in the graph. I really need help with this one but I can't post the graph.
Friday, February 4, 2011 at 5:58pm

Algebra
I don't even know where to start, teacher gave us this with no direction. Suppose the polynomial R(x)=a9x^9+a8x^8+...+a,x+a0 has real coefficients with a9 cannot equal 0. Suppose also that R(x)has the following zeros: 5, 6, 5+5i. Using this information, answer the ...
Friday, February 4, 2011 at 5:09pm

The function g is defined by g(x)=3x^2+6. Find g(5y) Algebra - drwls, Friday, February 4, 2011 at 11:07am 3*(5y)^2 + 6 = __? Algebra - Janet, Friday, February 4, 2011 at 3:56pm I get 75y+6
Friday, February 4, 2011 at 4:56pm

algebra
(x^-2y^2z)^-3/(x^-4y^2z)^-2
Friday, February 4, 2011 at 4:53pm

algebra
solve 6r+2s-(3r-7s)
Friday, February 4, 2011 at 4:52pm

algebra
Find an equation of the line having the given slope and containing the given point m=7/8,(2,-5)
Friday, February 4, 2011 at 4:11pm

algebra
(2x(tothe2ndpower)-3x+4)-(3x(tothe2ndpow​er)-x+2= ????
Friday, February 4, 2011 at 3:52pm

algebra
Not sure if I have the correct answer dealing with inequalities and not having equal signs. so the problem is 3x+4>9x+2 I came up with 2/6>x? not sure so this why I'm asking
Friday, February 4, 2011 at 3:37pm

Algebra
Which is equivalent to 5(to the 6th power)/5(to the 3rd power)
Friday, February 4, 2011 at 3:36pm

Algebra
Solve for B. b(to the 3rd power) = 1,331
Friday, February 4, 2011 at 3:35pm

Algebra
Solve for B. b(to the 3rd power) = 1,331
Friday, February 4, 2011 at 3:35pm

Algebra
(x^-2y^2z)^-3/(x^-4y^2z)^-2
Friday, February 4, 2011 at 2:38pm

Algebra
I cant write the sign for square root so I will just write it out. The problem says to simplify square root 5w^8v square root 20xu^2 I don't know how to figure out this problem.
Friday, February 4, 2011 at 2:35pm

Algebra II
Solve the given system by using a substitution method 9x-2y=3 3x-6=y If you could show the steps because I have 10 problems for homework and I just need an example Thanks
Friday, February 4, 2011 at 2:15pm

Algebra
The function g is defined by g(x)=3x^2+6. Find g(5y)
Friday, February 4, 2011 at 10:26am

Algebra
Suppose H(x)=(sqrt5x+3). Find two functions f and g such that (fog)(x)= H(x) . f(x)= g(x)= Neither function can be the identity function. (There may be more than one correct answer.)
Friday, February 4, 2011 at 6:04am

Algebra 1
The Everton college store paid 1519 for an order of 41 calculators. The store paid 9 for each scientific calculator. The other, all graphic calculators cost the store 55 each. How many of each type of calculators was ordered?. Thank you
Friday, February 4, 2011 at 12:34am

Algebra 1
The Everton college store paid 1519 for an order of 41 calculators. The store paid 9 for each scientific calculator. The other, all graphic calculators cost the store 55 each. How many of each type of calculators was ordered?. Thank you
Friday, February 4, 2011 at 12:34am

algebra
p-4=-9+p
Thursday, February 3, 2011 at 10:44pm

Algebra
What is 3y to the 4th power divided by 6y to the negative 4 power
Thursday, February 3, 2011 at 10:22pm

COLLEGE ALGEBRA
SUBTRACTING... 5x^4+3x^2-2x - 5x^4-3x^2+9x _______________ 0x^4+x^2+7x is this right?
Thursday, February 3, 2011 at 9:46pm

COLLEGE ALGEBRA
SUBTRACTING... 5x^4+3x^2-2x -5x^4-3x^2+9x _______________ 0x^4+x^2+7x is this right?
Thursday, February 3, 2011 at 9:46pm

algebra
im subtracting 5x^4+3x^2-2x -5x^4-3x^2+9x _______________ 0x^4+x^2+7x is this right?
Thursday, February 3, 2011 at 9:07pm

algebra
Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hr and train B is traveling at 88 miles per hour. Train A passes a station at 8:10 AM. If train B passes the same station at 8:40 AM, what time will train B catch up to ...
Thursday, February 3, 2011 at 8:59pm

algebra
two people are 33 miles apart. they leave at the same time and travel towards each other. ted goes 10mph and fred goes 1 mph. how many miles will ted have traveled when they meet
Thursday, February 3, 2011 at 8:49pm

Algebra-still need some help
Homework Help Forum: Algebra Posted by Jena on Thursday, February 3, 2011 at 7:32pm. Find the domain of the function. f(x)=(sqrt x+6)/(-2x-5) Write your answer as an interval or union of intervals. Algebra - David, Thursday, February 3, 2011 at 7:42pm (-6,-5/2)and(-5/2,...
Thursday, February 3, 2011 at 8:43pm

algebra
5x^4+3x^2-2x -5x^4-3x^2+9x _______________ 0x^4+x^2+7x is this right?
Thursday, February 3, 2011 at 7:48pm

Algebra
Find the domain of the function. f(x)=(sqrt x+6)/(-2x-5) Write your answer as an interval or union of intervals.
Thursday, February 3, 2011 at 7:32pm

Algebra
The number of bacteria in a certain population increases according to an exponential growth model, with a growth rate of 11% per hour. An initial sample is obtained from this population, and after four hours, the sample has grown to 4130 bacteria. Find the number of bacteria ...
Thursday, February 3, 2011 at 7:13pm

Choose the end behavior of the graph of each polynomial function. A f(x)= -5x^3-4x^2+8x+5 B f(x)= -4x^6+6x^4-6x^3-2x^2 C f(x)= 2x(x-1)^2(x+3) A= falls to the left and rises to the right B= Falls to the left and right C=Rises to the right and left.
Thursday, February 3, 2011 at 7:01pm

algebra
(36x^3-60x^2-87x-21)divided by 9x+3
Thursday, February 3, 2011 at 6:52pm

algebra
A gardner wants to create a rectangular garden with length of 2x-8y ft. and with of 3x-4y ft. What is an algebriac expression for the area of the garden? multiply this out, express in simpliest mathematical form, include units
Thursday, February 3, 2011 at 6:43pm

Algebra 1
The Everton college store paid \$1668 for an order of 44 calculators. The store paid \$8 for each scientific calculator. The others, all graphing calculators, cost the store \$55 each. How many of each type of calculator was ordered? Sorry! Actually, it was \$8 the store paid, ...
Thursday, February 3, 2011 at 6:39pm

Algebra 1
The Everton college store paid \$1668 for an order of 44 calculators. The store paid \$8 for each scientific calculator. The others, all graphing calculators, cost the store \$55 each. How many of each type of calculator was ordered? Sorry! Actually, it was \$8 the store paid, ...
Thursday, February 3, 2011 at 6:38pm

Algebra
Find all complex solutions of 4x^2+5x+2=0.
Thursday, February 3, 2011 at 6:36pm

algebra
The length of the side of a rectagular desk is given by 9x-2y cm. The length of the front is given by 9x+2ycm. What is an algebriac expression for the area of the top of the rectangular desk? Including correct units
Thursday, February 3, 2011 at 6:36pm

Algebra 1
The everton college store paid \$1668 for an order of 44 calculators. The store paid \$18 for each scientific calculator. The all graphic calculator cost \$55. How many of each type of calculator was ordered?. Here is a challenging one. I appreciate you help. Thank you.
Thursday, February 3, 2011 at 6:17pm

algebra
One side of a rectangle is 12 inches, and the other side is x inches.What values of x will make the perimeter at most 44 inches?
Thursday, February 3, 2011 at 3:54pm

Algebra
What is the complete factor form of the polynomial? -32a^6-28a^5-36a
Thursday, February 3, 2011 at 3:08pm

algebra 1
Marcos drove twice as far as Candice. Together, they drove 66 miles. Which equation can be used to find the number of miles Candice drove? A) 3x = 66 B) 2x+1/2x=66 C) 3x = 66 + x D) 3x=66-x
Thursday, February 3, 2011 at 1:46pm

Algebra-I'm still stuck
The one-to-one function f is defined by f(x)=(4x-1)/(x+7). Find f^-1, the inverse of f. Then, give the domain and range of f^-1 using interval notation. f^-1(x)= Domain (f^-1)= Range (f^-1)= Any help is greatly appreciated. Algebra - helper, Wednesday, February 2, 2011 at 7:...
Thursday, February 3, 2011 at 4:38am

Algebra 1
solve the system by graphing. Then classify 2x-y=12 2x+3y=4. Thank you
Thursday, February 3, 2011 at 2:31am

Algebra 1
Solve the system of equation by graphing. Then classify the system. 4x-y=11 4x+5y=-31. Thank you.
Thursday, February 3, 2011 at 1:11am

Algebra 2
A Rectangular Field is to be enclosed by a fence and divided into three parts by another fencer. Find the maximum area that can be enclosed and separated i this way with 500 meters of fencing
Thursday, February 3, 2011 at 12:26am

Algebra 2
A Rectangular Field is to be enclosed by a fence and divided into three parts by another fencer. Find the maximum area that can be enclosed and separated in this way with 500 meters of fencing.
Thursday, February 3, 2011 at 12:04am

algebra
What is the answer to (6.9); x + 6y = 5
Wednesday, February 2, 2011 at 11:54pm

The one-to-one function f is defined by f(x)=(4x-1)/(x+7). Find f^-1, the inverse of f. Then, give the domain and range of f^-1 using interval notation. f^-1(x)= Domain (f^-1)= Range (f^-1)= Any help is greatly appreciated. Algebra - helper, Wednesday, February 2, 2011 at 7:...
Wednesday, February 2, 2011 at 8:24pm

algebra
list the terms, coeffcients, and degree of the following polynomial:x^4+6x^3-x+3/4
Wednesday, February 2, 2011 at 8:10pm

algebra
state the degree of the following polynomial : 2x^3y+7xy-9y
Wednesday, February 2, 2011 at 8:07pm

algebra
Bob's Barber shop estimates their gross revenue for the second qaurter to be given by the polynomial 9x^3+4x^2-6x+9. The shop estimates their costs for that quarter to be given by 7x^2+2x+1. For the second qauter,find and simplify a polynomial that will represent their profit
Wednesday, February 2, 2011 at 7:51pm

algebra
5 divide Y + 11 = 11.5
Wednesday, February 2, 2011 at 7:47pm

Algebra
What is the equation for finding the revenue if you have a pizza selling for \$15.00, total cost of \$55.00 and labor is \$4.00.
Wednesday, February 2, 2011 at 7:22pm

algebra 1
5m-m+8+=0
Wednesday, February 2, 2011 at 7:19pm

Algebra
Ok I got another one I can figure out The one-to-one function f is defined by f(x)=(4x-1)/(x+7). Find f^-1, the inverse of f. Then, give the domain and range of f^-1 using interval notation. f^-1(x)= Domain (f^-1)= Range (f^-1)= Any help is greatly appreciated.
Wednesday, February 2, 2011 at 6:27pm

Algebra
What is the best estimate for 48% of 31?
Wednesday, February 2, 2011 at 6:25pm

Algebra
Suppose a model of the space shuttle "Endeavour" is 10 inches tall. The actual height of the "Endeavour" is 100 feet. What is the scale of the model?
Wednesday, February 2, 2011 at 6:05pm

algebra
Anna Can Paint The Garage In 12 Hours. Jenna Can Paint The Same Garage In 7 Hours. How Long Will It Take If They Both Work Together?
Wednesday, February 2, 2011 at 5:56pm

Solve the following inequality. (x-4)/(-x+2)>0 Write your answer using interval notation. x<2 or x>4 Thanks
Wednesday, February 2, 2011 at 5:48pm

algebra
Solving inequalities and graphing: y<2x+4 -3x-2y greater than or equal to 6 how to solve? Thanks
Wednesday, February 2, 2011 at 4:06pm

algebra
3x^3-2x^2y-8xy^2
Wednesday, February 2, 2011 at 3:42pm

Algebra
Not understanding the question. Why a solution of a word problem should be checked using the original wording of the problem and not the equation written from the wording.
Wednesday, February 2, 2011 at 3:20pm

algebra
not sure how to figure this one out find -x when x = -70
Wednesday, February 2, 2011 at 2:51pm

Algebra
Let X be the number then evaluate the expression for X=-3 the quotient of 12 and the number
Wednesday, February 2, 2011 at 1:02pm

algebra
Did I do this problem the correct way if so is there a shorter way to explain this? x(x + 6)(x + -4) = 24x x(6 + x)(x + -4) = 24x x(6 + x)(-4 + x) = 24x (6 + x) * (-4 + x x(6(-4 + x) + x(-4 + x)) = 24x x((-4 * 6 + x * 6) + x(-4 + x)) = 24x x((-24 + 6x) + x(-4 + x)) = 24x x(-24...
Wednesday, February 2, 2011 at 12:35pm

College Algebra
3x^2-12x-24=0
Wednesday, February 2, 2011 at 9:19am

Algebra desperate
Wednesday, February 2, 2011 at 4:25am

ALgebra...plz help
If the tens digit of a two-digit number is subtracted from the units digit, the difference is 8. The number with the digits reversed is 10 more than nine times the units digit of the original number. Find the number.
Tuesday, February 1, 2011 at 11:23pm

Algebra B
What is 1.11211211111221312211131122211113213211​ What are the next digits. I saw a diagram but it was in french, so I did not understand the progression.
Tuesday, February 1, 2011 at 11:09pm

Algebra
Tuesday, February 1, 2011 at 10:45pm

Algebra
Tuesday, February 1, 2011 at 10:43pm

Algebra-problem restated
Tuesday, February 1, 2011 at 9:27pm

Algebra
Tuesday, February 1, 2011 at 8:42pm

Algebra
Solve. (7+u)(3u-1)=0 (If there is more than one solution, separate them with commas.)
Tuesday, February 1, 2011 at 8:28pm

Algebra B
When a root is not a real number, what kind of number is it?
Tuesday, February 1, 2011 at 8:19pm

Algebra 2 Could use help asap
I really am trying to work these problems out on my own. Please help If f(x)=3x^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3x^2) + (1/6+x) x is all real numbers and x is not equal to 6 (f-g) (x) (3x^2) - (1/6+x) 3x^2-x-6 x is all real numbers and x is not ...
Tuesday, February 1, 2011 at 8:06pm

Simplify. (2b^-4 c^6)^5 I get b^20/32c^30 Is that right? Write your answer using only positive exponents.
Tuesday, February 1, 2011 at 8:02pm

Algebra
I'm needing help with this. Thanks An individual can be classified by gender as male, female, by hair color as black, blonde, brown, red, unknown, and by eye color as black, brown, green. A) How many different classifications are possible (for example, female, with unknown...
Tuesday, February 1, 2011 at 7:57pm

Algebra II
How can equations and inequalities help a business maximize profit or minimize cost?
Tuesday, February 1, 2011 at 7:38pm

Graph the Circle x^2+y^2+4x-2y-20=0 I get: (x^2+4x)+(y^2-2y)=20 (x^2+4x+4)+(y^2-2y+1)=20+16+4 (x+2)^+(y-1)^2=(40/2)^2 But I don't think its right can you help me with what I did wrong? Thanks
Tuesday, February 1, 2011 at 7:28pm

algebra
not sure if I did this right 14+(-20x) is greater than 14-6x
Tuesday, February 1, 2011 at 6:57pm

Algebra 2
If f(x)=3^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3^2) + (1/6+x) x is all real numbers and x is not equal to 6 (f-g) (x) (3^2) - (1/6+x) 3^2 -6-x x is all real numbers and x is not equal to -6 (f x g) (x) I do not understand (f/g) (x) 3^2/6-x x is all ...
Tuesday, February 1, 2011 at 6:17pm

algebra
is the time you take to go to the library a function of the distance to the library
Tuesday, February 1, 2011 at 6:08pm

algebra
can you help me break-up this mathematical phrase 56 – b = 2011
Tuesday, February 1, 2011 at 6:04pm

Math
Algebra 2: How do I factor this expression? 4x^4-6x^2+2
Tuesday, February 1, 2011 at 5:54pm

algebra
(x^8+8)(x^9-^2)
Tuesday, February 1, 2011 at 12:08pm

algebra
convert decimal notation 5.166x10-^8
Tuesday, February 1, 2011 at 12:06pm

Algebra
(4x^6)(-3x^9)(6x^7)
Tuesday, February 1, 2011 at 12:03pm

pre algebra
Mr Chee deposited \$80 into his checking account. Then, after writing a \$23 check for gas and a \$90 check for his child's day care, the balance in his account was \$67. How much was in his account before he made the deposit? How would you solve and check the answer?
Tuesday, February 1, 2011 at 8:55am

pre algebra
When twice a number is decreased by 8, the result is the number increased by 7. How would you solve it and check answer into the original problem?
Tuesday, February 1, 2011 at 8:47am

pre algebra
A college bookstore ordered 6 boxes of red pens. The store sold 32 red pens last week and 35 red pens this week. Five pens were left on the shelf. How many pens were in the box? How would you solve it and check answer into the original problem?
Tuesday, February 1, 2011 at 8:42am

algebra
-7x-22=-24 1/3 could someone help me Im confussed
Tuesday, February 1, 2011 at 8:00am

Use the rational zeros theorem to list all possible rational zeros of the following. -2x^3-x^2-4x-5 I got +-1,+-5+-,5/2,+-1/2 Be sure that no value in your list appears more than once.
Tuesday, February 1, 2011 at 5:06am

Algebra
logx1/64=-3 Solve for x
Tuesday, February 1, 2011 at 4:50am

Algebra
A candy cane 30 cm high has a circumference of 3 cm. The red “ribbon” makes exactly 4 complete turns round the candy cane while its two ends touch the cane's top and bottom. How long is the ribbon in cm? It doesn't make any sense to me. Can somebody explain ...
Tuesday, February 1, 2011 at 4:02am

MATH-Algebra
please show/explain what I have to do to work the below problem: p/3 x 24 = 16 p=___________ thank you
Tuesday, February 1, 2011 at 3:29am

Algebra
three apples and four bananas cost \$4.85,three apples and ten bananas cost \$8.75, find the cost of an apple
Monday, January 31, 2011 at 9:39pm

Algebra
What system of equations do I use to solve the following question? A boat traveled 336 miles downstream and back. THe trip downstream took 12 hours. THe trio back took 13 hours. What is the speed of the boat in still water What is speed of the current?
Monday, January 31, 2011 at 8:27pm

Pre Algebra
How do you draw and lable a circle that has an area between 5 and 8 square units?
Monday, January 31, 2011 at 7:28pm

Algebra
-11 < 3x-4 < -3
Monday, January 31, 2011 at 7:16pm

Math (Algebra 2)
Factoring by Using a Quadratic Form Problem: x^4 + 8x^2 - 20 What I have so far: (x^2)^2 + 8(x^2) - 20 a^2 + 8a - 20 For some reason my textbook says to substitute the (x^2) with (a) as you can see in the las step. The next step after that is factoring [a^2 + 8a - 20].
Monday, January 31, 2011 at 7:15pm

algebra
explain how to check a solution of an equation.
Monday, January 31, 2011 at 6:17pm

algebra
Solve -7x - 20= -24 2/3
Monday, January 31, 2011 at 5:52pm

algebra
A roof rises 1.4 feet vertically and 11.8 feet horizontally. What is the grade of the roof? The grade of the roof is _____% how do I begin to find the answer to this
Monday, January 31, 2011 at 4:54pm

algebra
you will be making hanging flower baskets. the plants you have picked out are blooming annuals and non-blooming annuals. the blooming annuals cost \$3.20 each and the non-blooming annuals cost \$1.50 each. you bought a total of 24 plants for \$49.60. write a linear system of ...
Monday, January 31, 2011 at 4:52pm

algebra
i have 2 solve by elimination an i keep gettin fractions when the answer is (-3,-3) my teacher gave me the answer an problem but she wants me 2 work it out idk how i keep gettin fractions the problem is: -3x-4y=21 8x-5y=-9 please help
Monday, January 31, 2011 at 4:48pm

Algebra 2
what happens when the major and minor axies are exactly the same length?
Monday, January 31, 2011 at 1:37pm

algebra 11
a normal distribution has a mean of 22 and a standard deviation of 3. Find the probablility that a randomly selected x-value is in the given interval. Between 19 and 25.
Monday, January 31, 2011 at 1:08pm

Marianna's rectangular garden is 15 yards long and 10 yards wide. She wants to stretch a wire for hanging lights from one corner of the garden to the opposite. About how long should the wire be?
Monday, January 31, 2011 at 12:13pm

algebra
-7x-26=-30 2/3
Monday, January 31, 2011 at 10:10am

algebra
b=a+x, for a
Monday, January 31, 2011 at 9:53am

algebra
A car is travelling at a rate 120 km per hour from town A, then turns right and slows down at 50 km per hour and stops at town B. How far is town B from town A?
Monday, January 31, 2011 at 8:45am

college algebra
2/3(5/4+2d) + 1/3=2/5
Monday, January 31, 2011 at 12:55am

college algebra
5+2(4y-4)=3(2y-1)solve
Monday, January 31, 2011 at 12:08am

Algebra 2/Trig
We just started logarithms and exponential functions, and I'm kind of getting the gist but not really. Here is what I tried on one of the homework problems: 2^X=4^X+1 1)2^X=(2^2)^X+1 2)x=x+1 3)0=1 or no solutions I wasn't sure what to do between steps 1 and 2. Thanks!!
Sunday, January 30, 2011 at 9:29pm

algebra
-2/5 x=6/35 could the answer be - 15/14????? solve using the multiplication principle, so lost to even figure it out
Sunday, January 30, 2011 at 8:41pm

algebra 1a
Help and explain please 9m+n=22 m-3n=18
Sunday, January 30, 2011 at 8:11pm

algebra 1a
can someone help in solving this and use set builder notations to describe the solution Please 4(8-2x)+2x<5(9+3x)
Sunday, January 30, 2011 at 7:59pm

Can you please explain to me how I can solve these problems? (3^ square root of3) ^square root of 3 (x^ square root of 2) ^square root of 7 5^(2)(square root of 3) • 5^(4)(square root of 3) x^(3)(pi) / x^(pi)
Sunday, January 30, 2011 at 7:43pm

algebra
how do u graph equations?? it says use the ggraphing method but i dont know how to graph them
Sunday, January 30, 2011 at 7:32pm

algebra
use substitution method/linear combinations to solve then tell how many solutions they have -7x+7y=7 and 2x-2y=-18
Sunday, January 30, 2011 at 7:04pm

algebra
how do u solve an equation using the the graphing method...for example x-y=2 and -2x=2y=2
Sunday, January 30, 2011 at 7:02pm

Sharon and her camping group hiked 6 miles due north, stopped for lunch, and then hiked 8 miles due west, stopping at ther campsite for the night. What is the straight line distance from their original starting place to the campsite?
Sunday, January 30, 2011 at 6:33pm

Algebra II
Solving the formula for the indicated variable. I=prt,for r I need help knowing how to solve this problem step by step. its easier with numbers and a fraction in the problem but this problem just threw me off.......HELP PLEASE!!!!
Sunday, January 30, 2011 at 6:29pm

algebra
y+x=-4
Sunday, January 30, 2011 at 6:28pm

Algebra
Graph the two equations to solve the system. Write the ordered pair solution like this (1,2) with no spaces, or write no solution or infinitely many solutions. 1/2 x - 2y = 4 and 4y - x = -8
Sunday, January 30, 2011 at 6:26pm

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