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August 5, 2015

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

algebra
You are shopping for an executive desk chair at The Furniture Gallery. You see two you like on sale. Chair A was originally $119.99 now on sale for $79.99 and Chair B was originally $149.99 now on sale for $89.99. Calculate the markdown percent of each chair to determine which...
Friday, May 31, 2013 by trish

Algebra
x/6=-5
Thursday, May 30, 2013 by cheyenne

algebra 1 study helps
Any help would be appreciated. Thanks. What is the simplified form of the expression? 2b–6 • b12 3b–72 2b6 2b–72 3b6
Thursday, May 30, 2013 by Jennifer W.

algebra
the number of calculators mrs. hopkins can buy for the classroom varies inversely as the cost of each calculator. she can buy 24 calculators that cost $60 each. how many calculators can she buy if they cost $80 each?
Thursday, May 30, 2013 by s

algebra
Question Four x - 7y = 15 -3x + 21y = - 45
Wednesday, May 29, 2013 by jean

Algebra
Hi, can I have some help with my permutation/combination homework? "Find the number of 5-card hands that contain the cards specified." 1. five red cards 2. five cards, none are number cards 3. five cards of the same suit
Wednesday, May 29, 2013 by Bri

Algebra
help! -9-7x=-58
Wednesday, May 29, 2013 by cheyenne

Algebra
there are two different problems, one is like this -3+x=5 and 7x+10=59 someone please tell me how to set these up.
Wednesday, May 29, 2013 by cheyenne

Algebra
-55=6x-x-5? I have tried this equation so many times and I cant solve it.
Wednesday, May 29, 2013 by Lyanna

Algebra
What values for θ (0≤θ≤2π) satisfy the equation 2cos θ+1=-cos θ?
Wednesday, May 29, 2013 by Terry

algebra
is this correct Ms.Sue? x+10=1 x-x+10=x-1 10=x x=10
Wednesday, May 29, 2013 by cheyenne

algebra
Prob.1: -14=2x+2x-2 Prob.2: 5x=50
Wednesday, May 29, 2013 by cheyenne

algebra
16=x+5
Wednesday, May 29, 2013 by cheyenne

Algebra
Can someone help me with these two questions? What is the 50th term of the sequence that begins -4, 2, 8, 14...? What is the 20th term of the sequence that begins -3, 6, -12, 24...?
Wednesday, May 29, 2013 by Tina

Algebra
The work and solution to: Stefan is bicycling on a bike trail at an average of 10 miles per hour. Erik starts bicycling on the same trail 30 minutes later at 16 miles per hour. How long will it take Erik to pass Stefan?
Wednesday, May 29, 2013 by Michelle

algebra
how do I solve this and show the work: a motorboat went upstream at 15 miles per hour and returned downstream at 20 miles per hour. How far did the boat travel one way if the round trip took 3.5 hours?
Wednesday, May 29, 2013 by jessica

algebra
Solve 1.5^x = 70. Round your answer to the nearest hundredth.
Tuesday, May 28, 2013 by Anonymous

Math/Algebra
Sketch the graph of each piecwise-defined function. Determine the domain and range. Identify each point of discontinuity. f(x)= -x if x<0 4-2x if 0 <or= x<3 2x+1 if x >= 3
Tuesday, May 28, 2013 by Student

Math/Algebra
Find the vertex, Focus,and Directrix of the parabola. Graph the equation. y^2=12x
Tuesday, May 28, 2013 by Student

Math/Algebra
Graph the ellipse and locate the foci. 16x^2 +9y^2= 144
Tuesday, May 28, 2013 by Student

Math/Algebra
Find an equation for the ellipse described. center(0,0); major axis horizontal with length10; length of minor axis is 8
Tuesday, May 28, 2013 by Student

Math/ Algebra
Find an equation for the hyperbola described: 1) Vertices at (0,+/- 10); asymptotes at y= 5/3x 2) Vertices at (-+5,0); foci at (-+6,0)
Tuesday, May 28, 2013 by Student

Math/Algebra
A bridge is built in the shape of a semi elliptical arch. It has a span of 96 feet. The height of the arch 29 feet from the center is to be 10 feet. Find the height of the arch at its center.
Tuesday, May 28, 2013 by Student

intermediate algebra
The Burbank Buy More store is going to make an order which will include at the most 60 refrigerators. What is the maximum number of TVs which could also be delivered on the same 18- wheeler? Describe the restrictions this would add to the original graph. I must assume that ...
Monday, May 27, 2013 by Anonymous

Algebra 2
How do you simplify?: -4x/x-x^2
Monday, May 27, 2013 by Courtney

algebra
Graph the following function using the technique of shifting, compressing, strecthing and/or reflecting Find domain and range of the function g(x)=2sqrtx-3+7 domain=___ (interval notation) range=_____ (interval notation)
Monday, May 27, 2013 by sharday

algebra
Graph function using the techinique of shifting, compressing, strecthing and /or reflecting f(x)=5(x+4)^2+1
Monday, May 27, 2013 by sharday

algebra
Find the average rate of change of f(x)=-3x^2+1: a) From 1 to 3____ b) From 3 to 5____ c) From 1 to 4______
Monday, May 27, 2013 by sharday

algebra
For the given functions f and g, find the following and state the domain of each result f(x)=sqrtx;g(x)=3x-2 a) (f times g)(x)=___ What is the domain of f times g? b) (f/g)(x)=____ what is the domain of f/g?
Monday, May 27, 2013 by sharday

algebra
For the given functions f and g, find the following and state the domain of each result f(x)=sqrtx;g(x)=3x-2 a) (f times g)(x)=___ What is the domain of f times g? b) (f/g)(x)=____ what is the domain of f/g?
Monday, May 27, 2013 by sharday

algebra
10y-6=12
Monday, May 27, 2013 by Mrs. Cash

Algebra
If Don Gecewicz invests $5000 at 9% interest compounded quarterly, find the amount after 4 years.
Monday, May 27, 2013 by drew

algebra 2
two resistors are connected in parallel. their resistances are 8 ohms and 17ohms. what is the resistance of the combonation.
Monday, May 27, 2013 by maddy

algebra
find three rational numbers of 8362 that will come to the right of the following numbers on the number line
Monday, May 27, 2013 by somen

algebra 2
if a rock is dropped from the top of a 200 ft building, solve for the time it takes for it to hit the ground. (when h=0) hint-initial velocity when dropped is 0
Sunday, May 26, 2013 by maddy

algebra probability34
Your English teacher has decided to randomly assign poems for the class to read. The syllabus includes 4 poems by Shakespeare, 5 poems by Coleridge, 2 poems by Tennyson, and 2 poems by Lord Byron. What is the probability that you will be assigned a poem by Coleridge and then a...
Sunday, May 26, 2013 by Jennifer W.

algebra probabilty34
A mathematics journal has accepted 14 articles for publication. However, due to budget restraints, only 7 articles can be published this month. How many specific ways can the journal editor assemble 7 of the 14 articles for publication? Possible answers: 14 3,432 98 17,297,280
Sunday, May 26, 2013 by Jennifer W.

Math/Algebra
Find the standard equation of an ellipse with the given characteristics and sketch the graph. Vertices at (0,-5), and (0,5); Foci at (0,-4)and (0,4).
Sunday, May 26, 2013 by M

Math/ Algebra
Find the slope-intercept equation of the line that satisfies the given conditions. Then graph the line. Contains points P=( -1,4);parallel to the line with equation 3x+y =5
Sunday, May 26, 2013 by M

algebra
write the function whose graph is the graph is the graph of y=(x+4)^2, but is reflected about the y- axis y=____
Saturday, May 25, 2013 by sharday

algebra equations
1) 3x(4x-9)= 12x^2-27x 2) 4x^2(x+6)= 3) 2x^2(15x^3-10)
Saturday, May 25, 2013 by anonymous

How to get quick responses to your math questions
Math is a wide subject, ranging from K to 11, college and university. Then there is algebra, trigonometry, geometry, arithmetic, calculus, number theory, ... etc. Not all teachers answer all math questions (many do). If you would give a little more detail on which branch of ...
Saturday, May 25, 2013 by MathMate

Math/ Algebra
Graph each liner equation and locate the x and y intercepts y/2-3x/5=1
Friday, May 24, 2013 by M

Math/ Algebra
Graph each liner equation and locate the x and y intercepts y/2-3x/5=1
Friday, May 24, 2013 by M

Algebra 1
1. (3.0 X 10^2) x (2.0 X 10^6) I said 6 X 10^8 2. what is the area of a square with the dimension of 1+ ã 2? I don't know this one 3. Simplify: 2ã 4 + 2ã 8. I said 10 4. Simplify: 2ã 4 + ã 4 I said 6 5. 5&#...
Friday, May 24, 2013 by Eri

algebra
what is the diffance of a number and 20 more than than that number use x
Friday, May 24, 2013 by lisa

Algebra 2
The functions f(θ) and g(θ) are sine functions, where f(0) = g(0) = 0. The amplitude of f(θ) is twice the amplitude of g(θ). The period of f(θ) is one-half the period of g(θ). If g(θ) has a period of 2pi and f (pi/4) = 4, write the function ...
Friday, May 24, 2013 by Brittany

algebra
Simplify (2a^3b^4)^2 × a^5 ÷ 8a^6b^3
Friday, May 24, 2013 by Mr. Bailey's dad

algebra
3. write the function whose graph is the graph of y=sqrt of x, but is shifted to the left 3 units y=____ 4. write the function whose graph is the graph of y=|x|, but is shifted down 8 units y=___
Friday, May 24, 2013 by sharday

algebra
3. write the function whose graph is the graph of y=sqrt of x, but is shifted to the left 3 units y=____ 4. write the function whose graph is the graph of y=|x|, but is shifted down 8 units y=___ 5. write the function whose graph is the graph is the graph of y=(x+4)^2, but is ...
Friday, May 24, 2013 by sharday

algebra
2. The function f is defined as follows f(x)={4+2x if x<0 {x^2 if x>0 a) Find the domain of the function b) Locate any intercepts c) Graph function d) Based on graph find range e) Is f continuous on its domain? a) The domain of the function f is
Friday, May 24, 2013 by sharday

algebra
1. Find the average rate of change of f(x)=x^3-9x+9: a) from -8 to -2 b) from -1 to 1 c) from 1 to 4 a) what is averge rate of change of f (x) =x^3-9x+9 from -8 to -2?
Friday, May 24, 2013 by sharday

calculus
I'm having trouble with a geometric series problem. Determine if the infinite summation of (-3)^(n-1)/4^n converges or diverges. If it converges, find the sum. So the answer says that sigma -3^(n-1)/4^n = 1/4 * sigma (-3/4)^(n-1) How did they factor out the 1/4? My algebra...
Friday, May 24, 2013 by Jace

college algebra
calculating present value p=35,000(1.10)^-12
Thursday, May 23, 2013 by topaz

Algebra
5 Couples, having dinner before the prom are to be seated at a circular table. In how many ways can this occur if the seating must be boy girl, boy girl?
Thursday, May 23, 2013 by Tim

algebra
daniel's print shop purchased a new printer for $35'000.each year it depreciates (loses value ) at a rate 5%.what will its approximate value be at the end of the fourth year? 1)$33,250.00 2)$30,008.13 3)$28,507.72 4)$27,082.33
Thursday, May 23, 2013 by harpreet

algebra
kathy plans to purchase a car that depreciates (loses value)at a rate of 14%per year initial cost of the car ia $21,000.which equation represents the value,v,of the car after 3 years?
Thursday, May 23, 2013 by harpreet

Algebra
f(x)is a monic cubic polynomial with real coefficients. f(x) has 7+4i as a root and f(0)=−2145 . What is the coefficient of x in f(x) ?
Thursday, May 23, 2013 by Tony

algebra
determine the equation of the line through the points (8,2) and (-4,-1) Please explain and show work
Thursday, May 23, 2013 by Ella

Algebra
An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = -4.9 t^2 + 68.6 t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach? How long did it take the ...
Thursday, May 23, 2013 by Amy

algebra
-3(4r-8)=-36
Thursday, May 23, 2013 by stephanie

algebra
Determine whether the following relation represents a function. If the relation is a function then state domain and range? {(-1,-6),(2,-6),(3,-6),(4,-6)} Does the given relation represents a function? What is domain?
Wednesday, May 22, 2013 by Sharday

algebra
1.Find the domain of the function. Make sure answer is in interval notation. g(x)=7x/x^2-4 2.Find the domain of the function. Make sure answer is in interval notation. f(x)=5x square root of x-2
Wednesday, May 22, 2013 by Sharday

algebra
1. For the given function f and g find the folowing and state the domain of each result f(x)=2x+1;g(x)=7x-1 a) (f-g)(x)=_____ (f/g)(X)=_____
Wednesday, May 22, 2013 by Sharday

algebra
The ball is kicked straight up in the air from 4' off the ground Original velocity is 60' per second How many secs does it take to hit the ground. Do I use complete the square, square root property, quadratic formula, factoring? formula is h= 16tsquared + 60t +4
Wednesday, May 22, 2013 by barb

algebra
How long will the ball be in the air until it lands on the ground when h=-4.9t+28t+3.2 quadratics
Wednesday, May 22, 2013 by Help

Algebra
You are building a rectangular deck. The area of the deck should be 250 ft squared. You want the length of the deck to be 5 ft longer than twice its width. What should the dimensions of the deck be? My work: 250=2x(x+5) Is this correct so far?
Wednesday, May 22, 2013 by Kate

algebra
Given f(x)=x^2+4 and g(x)=3x+1 simplify g^-1(x)(inverse) plaese show work and explain
Wednesday, May 22, 2013 by mia

algebra
what is the slope of the line perpendicular to y=2/5x+7
Wednesday, May 22, 2013 by elaina

algebra!!!! please help me!!!!
A number is called algebraic if there is a polynomial with rational coefficients for which the number is a root. For example, √2 is algebraic because it is a root of the polynomial x^2−2. The number √(2+√3+√5)is also algebraic because it is a root...
Wednesday, May 22, 2013 by bob

Math (Algebra)
If the ratio of the roots of the quadratic equation x^2−28x+A=0 is 2:5, what is the product of the roots of the quadratic equation x^2+Ax+2A+3=0?
Wednesday, May 22, 2013 by Shin

Math (Algebra)
For real numbers a and b, if f(x)=x^2−ax+b satisfies f(5+7i)=2a, what is the product of the two roots of the equation f(x)=0?
Wednesday, May 22, 2013 by Shin

algebra
Barney and George invested the same amount in two funds. Barney earned 4% and Fred earned 2%. If they earned $420 together. how much did they each invest?
Wednesday, May 22, 2013 by Ressie

algebra
which of the following lines is not parallel y=2x=1 1)4x-2y=-4 2)2y-x=-4 3)y-2x=6 4)2x-y=-4
Tuesday, May 21, 2013 by aman

Algebra
x-14/x-1=4-2x/x-1
Tuesday, May 21, 2013 by Amanda

algebra
find the pair of parallel lines 1)-12y+15x=4 2)4y=-5x-4 3)15x=12y=-4
Tuesday, May 21, 2013 by aman

algebra
The question I have is to solve the problem. A model rocket is launched from the ground with an initial speed of 50 feet per second. The equation that models its height, h feet, off the ground t seconds after it was fired is h=-16ft^2+50t a)How high is the rocket 1 seconds ...
Tuesday, May 21, 2013 by Ressie

algebra
Chris has $100 in his savings account and he adds $20 a month to the account. The total amount can be represented by the linear function T = 20x + 100. His goal is to have a total of $300 in four more months. What should he change in the function to reach this goal?
Tuesday, May 21, 2013 by Nikki

Algebra
Use the zero product property to solve the equation: -3n(2n-5)=0
Tuesday, May 21, 2013 by Kate

Algebra
V=xyz xy+xz+yz-a=0 x>0 y>0 z>0 find the local minima and maxima for this function
Tuesday, May 21, 2013 by Fatih yalmanbas

algebra
If x dollars is deposited every four weeks (13 times a year) into an account paying an annual interest rate r, expressed in decimal form, then the amount An in the account after n years can be approximated by the formula .If $45 is deposited every four weeks into an account ...
Tuesday, May 21, 2013 by Anonymous

algebra 1
A local citizen wants to fence a rectangular community garden. The lengthof the garden should be at least 110ft., and the distance around should be no more than 380 ft. Write a system of inequalities that models the possible demensiopns of the garden. Graph the system to show ...
Tuesday, May 21, 2013 by Aubrey

Algebra
80. Determine the sum for the arithmetic series: n = 37, t1 = 23, t37 = 203 a. 5631 b. 8362 c. 6742 d. 4181 81. Determine the sum for the arithmetic series: n = 100, t1 = 17, t100 = 215 a. 9900 b. 3350 c. 11,600 d. 990 82. Determine the sum for the geometric series: n=10, r=-2...
Tuesday, May 21, 2013 by Holly

Math 104
Students, please view the "Submit a Clickable Rubric Assignment" in the Student Center. Instructors, training on how to grade is within the Instructor Center. Assignment 2: Financial Project Due Week 7 and worth 55 points Five (5) years ago, you bought a house for $...
Tuesday, May 21, 2013 by kal

Math (Algebra)
f(x)=x^4+ax^3+bx^2+cx+d and has real coefficients. If two of the roots are 4−i and 2+3i, what is the value of a+b+c+d?
Tuesday, May 21, 2013 by Shin

Algebra
f(x) is a function differentiable at x=1 and fŒ(1)=1/8. What is the value of f(x)-f(1) f'(x) denotes the derivative of f(x)
Tuesday, May 21, 2013 by Andy

Math (Algebra)
One root of the quadratic equation x^2 − 2x + m = 0 is 9. If the other root is n, what is n−m?
Tuesday, May 21, 2013 by Shin

Math (Algebra)
f(x) is a cubic polynomial that satisfies f(1)=f(2)=f(3)=4 and f(0)=0. What is the value of f(7)?
Tuesday, May 21, 2013 by Dan

Math (Algebra)
A number is called algebraic if there is a polynomial with rational coefficients for which the number is a root. For example,√2 is algebraic because it is a root of the polynomial x^2−2. The number √2+√3+√5 is also algebraic because it is a root ...
Tuesday, May 21, 2013 by Dan

algebra
there are 30 students in the class the number of boys in 8 more than four times the number of girls.
Monday, May 20, 2013 by maylin

algebra
A rectangle has length of 14x^4 and a width of 7x^3. Find the area in square units.
Monday, May 20, 2013 by tammy

algebra
(a1/2b)1/2(ab1/2) how to simplify expression and write with positive exponent
Monday, May 20, 2013 by cynthia

pre algebra
I have a cube of 3 by 3 by 3 centimeters , I paint all the surfaces white. After that I'd take my saw, and saw it into cubes of 1 by 1 by 1. I will have 27 cubes after. How many will have no white color on any surface?
Monday, May 20, 2013 by shannon

Pre-algebra
Sara is 24 years younger than Joe. Six years ago she was half as old as he was. How old is he now?
Monday, May 20, 2013 by Dom

algebra
The class average on a math test was 75.5 and the standard deviation was 4.2. Find the z-score for a test score of 81
Monday, May 20, 2013 by Samantha

algebra 1
Circle the most appropriate description. 27.A city planning commitee surveys 100 people waiting at a bus stop about the expansion of the public transportation system. Random Sample,systematic sample,self-selected sample, convenience sample, bipartisan sample,stratified random...
Monday, May 20, 2013 by janet

Algebra
SR (2x+6)=2SRx
Monday, May 20, 2013 by Jamila

Algebra
An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = -4.9 t^2 + 68.6 t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach? How long did it take the ...
Monday, May 20, 2013 by Amy

Algebra
An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = -4.9 t^2 + 68.6 t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach? How long did it take the ...
Monday, May 20, 2013 by Amy

Algebra
A triangle has an area of 60 in^2. Its base is 10 inches and its height is √x inches. What is the value of x? What is the height of the triangle? Please show all work that you use to determine your answer. (Hint: The formula for the area of a triangle is A= 1/2bh where b...
Monday, May 20, 2013 by sarah

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Homework Help: Math

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