Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 976960: how does +3*x+9=0 ? I dont get it ....
Click here to see answer by Alan3354(69443)

Question 976991: Write the function whose graph is the graph of y=x^2, but is shifted to the right 8 units.
Click here to see answer by stanbon(75887)

Question 976937: f(x)+g(x)
fx = 3x+5
gx = 2x-7
Click here to see answer by MathLover1(20849)

Question 977038: mr. luna would lke to couct a new house with a floor area of 72m^2. he asked an architect to prepare a floor plan that shows the following;ba. bedrooms b.living room c. dining room d. omfort room e. kitchen f.laundry area

Click here to see answer by stanbon(75887)

Question 976840: (x+4/x^2-1)-5=1/x-1

Click here to see answer by Fombitz(32388)

Question 977053: Hello!
I need help solving this equation. I have to Write the partial fraction decomposition of the rational expression.
I used this sign" / " as a fraction sign so it is a fraction
4x^2 � 15x � 27/x^3-9x
Please explain each step.
Thank you

Click here to see answer by Fombitz(32388)

Question 977079: Simplify completely: x-2/2a-3 times 3-2a/2x-4
I don't know where to begin actually.
Click here to see answer by Boreal(15235)

Question 977068: Pls help out: a number of two digits is increased by 9. When the digits are reversed, the sum of the digit is 5. Find the number
Click here to see answer by ankor@dixie-net.com(22740)

Question 977096: Hello!
I need help solving this equation.
Write the partial fraction decomposition of the rational expression.
3x-12/(x-3)^2
Thank you
Click here to see answer by jim_thompson5910(35256)

Question 977097: Hello!
I have these two points given: (-3,-2),(0,7)
What is the equation for the parabola in standard form?
Thank you
Click here to see answer by josgarithmetic(39616)

Question 536313: a shopkeeper has only 4 weights. He weighs 1 kg to 40 kg of weight in exact quantity with combination of these four weights that he got. He doesn't sell goods in half or quarter kilos. What would be the amount of weights he has, to weigh each and every no. ranging from 1 to 40 kg.
Click here to see answer by isalam931(1)

Question 977172: Shopping at Super Sale Days, Martha buys her children 3 shirts and 2 pairs of pants for $85.50. She returns during the sale and buys 4 more shirts and 3 more pairs of pants for $123. What is the sale price of the shirts and pants?
Click here to see answer by FrankM(1040)

Question 977175: Pls help in solving: the tens digit of a two digit number is 3 greater than the units digits. When the digits are reversed, the number is reduced by 27.what is the number
Click here to see answer by solver91311(24713)

Question 977174: What is the area of the smaller rectangle?
Dimensions:
Length = x + 2
Width = 4
Click here to see answer by solver91311(24713)

Question 977173: What is the area of the large rectangle?
The dimensions are:
Length = x + 6
Width = x
Click here to see answer by solver91311(24713)

Question 977180: The tens digit of a two digit number is 3 greater than the units digits. When the digits are reversed, the number is reduced by 27.what is the number
Click here to see answer by solver91311(24713)

Question 977186: Hello!
How should I solve this equation?
Please explain each step.
Write the function in the form f(x) = (x − k)q(x) + r for the given value of k.
f(x) = x^3 − 4x^2 − 11x + 9, k = −2
Thank you.
Click here to see answer by solver91311(24713)

Question 977187: Hello!
What are all the rational zeros of the function?
f(x) = 2x^4 � 13x^3 + 12x^2 + 52x � 80
Thank you!
Click here to see answer by Edwin McCravy(20054)

Question 977176: Pls help in solving: a number is such that thrice it is 14 less than five times the number. Find the number
Click here to see answer by JulietG(1812)

Question 977184: Hello!
I need help solving this equation: Use the Rational Zero Test to list all possible rational zeros of f.
f(x)=f(x) = 4x^5 � 8x^4 � 5x^3 + 10x^2 + x � 2
Thank you
Click here to see answer by Boreal(15235)

Question 977183: Hello!
I need help solving this.
f(x)= x^2-3x-18/(x^2-4)
What is the domain of the function, x-intercepts, y-intercept, vertical asymptote and horizontal asymptote and graph.
Please explain each step.
Thank you
Click here to see answer by Boreal(15235)

Question 977197: Scientific Notation in problem solving.
Named in tribute to Anders Angstrom, a Swedish physicist who measured light waves, 1 A (read "one Angstrom") equals 10^-10 meter. One parsec is about 3.26 light years, and one light year equals 9.46 x 10^15 meters.
How many Angstroms are in one parsec?
My answer was 3.08 x 10^6. The books answer was 3.08 x 10^26. If I'm right, let me know. If I'm wrong, show me how it's done.
Click here to see answer by rothauserc(4718)

Question 977210: Barney is taking part in a six week program to build rock hard abs. Each day he is going to do 3 more sit-ups than the day before. If he does 10 sit-ups on the first day, how many will be have to do on the last day of the challenge.
Please explain in detail. Thanks!
Click here to see answer by brysca(112)

Question 977239: if x-y=5,xy=84 find value of x cube - y cube

Click here to see answer by solver91311(24713)

Question 977200: A triangular prism is 14.1 feet long and has a triangular face with a base of 7.2 feet and a height of 10.5 feet. The other two sides of the triangle are each 11.1 feet. What is the surface area of the triangular prism?

Click here to see answer by solver91311(24713)

Question 977247: Solve the system using elimination.
2x + y = 6
-x - 2y + 8z = 2
-y + 4z = 3

Click here to see answer by Edwin McCravy(20054)

Question 977261: pls help
solve for x
(x-a)^2=(x-b)^2
Click here to see answer by josgarithmetic(39616)

Question 977262: pls help
a man is 20 years older than his son.if the sum of their ages is 50yrs,how old are they?

Click here to see answer by lghnn(2)

Question 977268: What quadratic equation can represent a box with a volume of 270 cubic centimeters? Please answer:) Thanks.
Click here to see answer by josgarithmetic(39616)

Question 977271: What is the arithmetic means between the first term a and the last term b?
Click here to see answer by rothauserc(4718)

Question 977302: Elizabeth is buying a $29.99 swimsuit at a 20% discount. The sale price is what fraction of the original price?
Click here to see answer by richwmiller(17219)

Question 977300: Find the area of the rectangle with a length of x + 6 and a width of x.
Click here to see answer by Alan3354(69443)

Question 977301: Solve the following quadratic a for x:
12x^2-127=0
Click here to see answer by josgarithmetic(39616)

Question 977315: Scientific Notation in problem solving.
For this problem, use the approximate average distance from the earth to the sun of 1.50 x 10^11 meters.
Determine the volume of a cylindrical sunbeam that is 3 Angstrom in diameter.
The books answer was 1 x 10^22, or 1 x 10^-8 m^3. I tried solving but couldn't get the answer. please help.
Click here to see answer by josgarithmetic(39616)

Question 977316: Elizabeth is buying a $29.99 swimsuit at a 20% discount. Explain how Elizabeth can estimate her cost of the sales tax is 5%.

Click here to see answer by stanbon(75887)

Question 977433: find the equation of the line for the line that contains the point (-4, 18) and is parallel to the line that contains (2, -2) and (6, 3)
Click here to see answer by Cromlix(4381)

Question 976117: Solve the system of 2 equations and 2 unknowns using the echelon method.
-4x - 5y = 15
-2x + 2y = -6
(___, ___)
Thanks.
Click here to see answer by Cromlix(4381)

Question 977345: insert four arithmetic means between 68 and 3
Click here to see answer by richwmiller(17219)

Question 977614: x^2-4x-4/x-2
whats the quotient
Click here to see answer by rothauserc(4718)

Question 977614: x^2-4x-4/x-2
whats the quotient
Click here to see answer by Alan3354(69443)

Question 977624: p(x)=8x^2+6x+2, c=1/2 Use synthetic division and the remainder theorem to find

p(c) which in this case is p(1/2)
Click here to see answer by Edwin McCravy(20054)

Question 977628: is 4% of 65= 26

Click here to see answer by Edwin McCravy(20054)

Question 977623: use synthetic division and remainder theorem to solve
p(X)=x^3+9x^2-3,c=-9
Click here to see answer by stanbon(75887)

Question 977623: use synthetic division and remainder theorem to solve
p(X)=x^3+9x^2-3,c=-9
Click here to see answer by josgarithmetic(39616)

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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