Thursday
September 18, 2014

Posts by Algebra


Total # Posts: 60

algebra
thank you ms sue and damon
August 25, 2014

algebra
whys is 7-(-1) = 8, i don't understand why is it 8 how do you solve this!?
August 25, 2014

ALGEBRA
Checking algebra answer, Is it correct? 320km/1hr ↓ 320km /1hr →1m/1.609km =320m/1.609hr÷=199.3mph Answer: Round to nearest 10th =198.9mph
August 25, 2014

math
The wheelers' bill at a restaurant is $63.00.How much money should Mr.Wheeler leave as a tip 15%?
April 6, 2014

math
There are 22 students on the debate team. The number of boys is two more than three times the number of girls. How many boys are on the team?
March 18, 2014

cv
all the possible values of n that are solutions to 7n−(9n+1)>5.
November 24, 2013

cv
possible values of n for 7n−(9n+1)>5
November 24, 2013

Computer Science
I don't know.
September 9, 2013

math
kenny can assemble a desk in 40 minutes while his friend paul can assemble the same desk in 20 minutes. kenny worked for 10 minutes and decided to ask paul to work together with him to finish the job earlier, so that they can go to see a football game. how many more minutes ...
August 1, 2013

Kos
simplify. 5 _____ -5 - 3√3
April 17, 2013

UOP
Use the value d= rt to find the variable D= 100 feet t =25 second
March 24, 2013

science
A 1.98 10-9 C charge has coordinates x = 0, y = −2.00; a 2.73 10-9 C charge has coordinates x = 3.00, y = 0; and a -4.95 10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm. Determine magnitude and direction for the electric field at the ...
January 9, 2013

math
Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0 <= x <= a is revolved about the y-axis, the volume of the solid produced is 7pia3/12 . Please show all work
December 31, 2012

math
Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0 <= x <= a is revolved about the y-axis, the volume of the solid produced is 7pia3/12 . Please show all work
December 3, 2012

Algebra
he spreadsheet shows the length of 3 movies in each of 3 categories. Choose the formula that could be used in cell B2.   A B C D E 1 Type of Movie Movie 1 (min. long) Movie 2 (min. long) Movie 3 (min. long) Mean Length 2 Animated 72 63 84 73 3 Drama 92 104 113 103 ...
October 15, 2012

Finance
Find the amount of compound interest earned in an account that opens with $24,000, earns 7.8% interest compounded daily, and is held for 20 years. Assume 360 days in a year. (Round your answer to the nearest cent.)
August 29, 2012

Physics
5 waves pass in 26 seconds, period = 26 sec / 5 waves = 5.2 seconds, f = 0.192 hz
April 6, 2012

algebra
When you solve a system of equations by the substitution method, how do you determine whether the system of equations is inconsistent?
March 21, 2012

algebra
Explain how you can determine from the graph of a system of two linear equations in two variables whether it is an inconsistent system of equations.
March 21, 2012

physics
If I1 is the intensity at a distance 150 m from the source and I2 is the intensity at a distance of d m from the source , I1 *150^2 = I2 *d^2 d^2 =[ I1 / I2 ]*150^2 [I1 / I2] = 1.9 /0.8= 2.375 d^2 = 2.375*150^2 d =231.17 m.
December 3, 2011

Math
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where C is a constant, ...
October 21, 2011

Algebra
Thanks! got it.
May 31, 2011

algebra
a city's main well was recently found to be contaminated with trichloreathylene (a cancer-causing chemical) as a result of an abandoned chemical pump that leached chemicals into the water. a proposal submitted to the city council indicated that the cost, in millions of ...
May 26, 2011

math
The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 34 cm when the weight is 3 kg, what is the distance when the weight is 9 kg? 22. Find the variation constant and an equation of variation where y ...
May 15, 2011

Algebra
Add and simplify: 2/x^2-16 + 3/x^2 -2x-8 Now if the numerator of your answer equals 6, what does x equal? My answer of 5x+16/(x-4)(x+4)(x+2) does not match theirs. The correct answer is -2. I don't know how they got there.
May 5, 2011

algebra
Given a right triangle whose side lengths are integral multiples of 7, how many units are in the smallest possible perimeter
January 20, 2011

algebra
The loan arranger? I'm just guessing I haven't started the worksheet
December 2, 2010

Math: Calculus
njdsdhdj
November 17, 2010

spanish
someone translate please Como son la mujer y las dos mudchachas del cuadro? Quien es la mujer, y que relacion hay entre ella y las ninas? Escrbibe una descripcion de las tres personas
September 28, 2010

algebra
solve for r: I = prt
September 27, 2010

algebra
i have another ? find the slope if it exists of the line containing the pair of points (-5.5,13.6) and (-5.3, 7.8) the slope m=?
December 20, 2009

algrebra
it also says im supposed tp find an equation of the line containing the given pair of points?
December 20, 2009

algrebra
so what is y= then?
December 20, 2009

algrebra
(2,4) and (6,6) what is the equation of the line y=
December 20, 2009

math
please solve this for me.. i feel as if i am doing this wrong.. (1000/s-120)- (1000/s) = 1/2
September 21, 2009

Algebra
could you show me how to solve for x it is killing me y/x^2 = b/(a-x)^2
September 13, 2009

algebra
if a=3b for b The solution is b =a/3 Do I understand this correctly now?
September 11, 2009

algebra
I did that wrong c=2d for d the solution is d= c /2 Correct
September 11, 2009

algebra
I still don't get it does that mean b=3
September 11, 2009

algebra
a=3b for b The solution for a = b=3a did I do this backwards?
September 11, 2009

algebra
solve -0.6x < -12 I come up with {x|>20
September 11, 2009

algebra
Then I get 12
September 11, 2009

algebra
solve y-8> -20 I get 28 am I correct?
September 11, 2009

algebra
So they would be Parallel correct? Thank you
September 11, 2009

algebra
2x + 3y =6 2x + 3y = 4 I get these lines are neither parallel or perpendicular. Am I doing this right?
September 11, 2009

algebra
That does not come out right.
September 11, 2009

algebra
evaluate x + y/8 x=65 and y=7
September 11, 2009

algebra
simplify 5[-8-(34-49)]
September 11, 2009

algebra
Pleas help with this. Explain the steps so I can understand what I am doing. solve 0.3x + 9<_ 0.7x -8 the solution is {x|x ? ? } _ this line is suppose to go under the 9 but I don't know how on computer do you?
September 11, 2009

Algebra
can show me how to do this with out just squaring 3x^(1/2) - x - 6 = 0 how do i do this and solve for x with out just squareing and using quadratic formula. I was never taught the proof of the quadratic formula and would like to know how to do with without squareing and if ...
May 27, 2009

Algebra
X^2=14X+5X I got Lost and on this one -2X(X+7) - (X+7) I need to factor these problems
December 7, 2008

Math
how do i factor 8X^2+10X-3 I know the answer is (4X-1)(2X+3) I just guessed and checked not sure about thorught process thats suppose to go trough my head here when dealing with a number before X^2 please tell me cuz i can get the answer by guessing but that takes to long
December 7, 2008

Algebra
this is same person from before what am I exactly suppose to do when I'm asked to factor 2X(3X+4)-3(3X+4)
December 7, 2008

Ap World History
thanks
December 7, 2008

Algebra
(X-7)(X-5)
December 7, 2008

Algebra
thanks
December 7, 2008

Algebra
ello i need help factoring I haven't had factorin sense Algebra one and now am in Algebra two and our school is screwed up were they shove in a year of Euclidean Geometry and Basic Trig inbetween first two years of Algebra... so i need to factor X^2-12X+35 I can sit there ...
December 7, 2008

algebra
How would i solve this question? In 06, 74.2 million tax returns were filed electronically. This represents a 108% increase over the year 2005. How many income tax returns were filed electronically in 2005? Do I multiply 74.2 x 1.08?
August 29, 2008

meg
find the real solutions x= y^2 - 9 x-4y-12= 0 I got x= -3 and y= 7 and x= 40 but how do i know what x to use and whats the ordered pair? I'm confused! help please!
April 6, 2008

John
min/max point minimum or maximum f(x)=2x^2+8x-2 a=2 x=(-b)/(2a)=(-8)/(2)(2)=-4 x=-4 y=2(-4)^2+8(-4)-2 2(16)-32-2 32-32-2 y=-2 (-4,-2) axis of symmetry is x=-4 range[-2,oo] minimum value -2
April 3, 2008

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