Thursday
July 2, 2015

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra
I already posted this question,Steve answered it. I just wanted to clarify my answer. Problem:Find h(x) with terms in order of decreasing degree, if 9x^3-3x+1+h(x)=3x^2-5x+3. Steve: h(x) = (3x^2-5x+3)-(9x^3-3x+1) so, just subtract tghe coefficients of like powers. My answer:&#...
Thursday, November 13, 2014 by Trish Goal

Algebra 2
Complete the Square Solve each equation x^2+8x+16=16/9 Show work i want to learn!!!
Thursday, November 13, 2014 by Alicia

algebra
If matt has six times as many sitckers as tom. how many stickers dose he have to give tom so they can have 70 stickers each?
Thursday, November 13, 2014 by Emma

Algebra
What is the coefficient of x^3 when 24x^4+6x^3+4x^2-7x-5 is multiplied by 6x^3+3x^2+3x+4 and the like terms are combined? I got 144x^7+108x^6+90x^5+114x^4+24x^3 so the answer would be 24. But I am not sure if I am right.
Thursday, November 13, 2014 by Trish Goal

Algebra
Find h(x) with terms in order of decreasing degree, if 9x^3-3x+1+h(x)=3x^2-5x+3.
Thursday, November 13, 2014 by Trish Goal

Algebra
What is an equation in slope intercept form for the line that passes through the points (1,-3) and (3,1)?
Thursday, November 13, 2014 by Rachel

math algebra
thanks to reiny and steve, I repeat again that steve answer is incorrect, and I did not type it incorrectly . I mailed the ? as in the book . thanks
Thursday, November 13, 2014 by mohammad

Intermediate Algebra
Environmental scientists often use cost-benefit models to estimate the cost of removing a pollutant from the environment as a function of the percentage of pollutant removed. Suppose a cost benefit function for the cost C (in millions of dollars) of removing x percent of the ...
Thursday, November 13, 2014 by Anonymous1234

Algebra
Which is the correct factorization for -3x^5 + 24x^2? -3x^2(x - 2)(x^2 + 2x + 4) -3x^2(x - 2)(x + 2)(x + 2)
Thursday, November 13, 2014 by Anonymous

Algebra 2
Hey, I don't understand this question I have honestly done this question about a good 3 times but never seemed to get the right answer. Please Help!!! Solve each equation by factoring. Check your answers. 7x^2=21x
Thursday, November 13, 2014 by Taylor

maths algebra
HI STEVE, THANKS for your reply back it was the wrong answer the one you worked, yes a hard question, here is an example of simultaneous questions. x-2/3 + y-1/4 =13/12 (1) 2-x/2 + 3+y/3 =11/6 (2) first step is to get rid of fractions. in equation (1) the lcm of denominators ...
Thursday, November 13, 2014 by mohammad

Algebra
An isotope has a half-life of 97 years. how much of a 19-gram sample is left after 150 years?
Thursday, November 13, 2014 by Miles

Freshman Algebra
Using a chart: At noon a private plane left Austin for Los Angeles,2100km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700km/h. At what time did they pass each other?
Wednesday, November 12, 2014 by Madison

Algebra
I already posted this question and Reiny answered it, I just wanted to clarify my answer Problem: If f(x) is a polynomial of degree 4, and g(x) is a polynomial of degree 2, then what is the degree of polynomial f(x)-g(x)? Reiny: so f(x) has to contain an x^4 term and g(x) does...
Wednesday, November 12, 2014 by Trish Goal

Algebra 2
How do I solve this using the Quadratic formula and finding the determinant? 1. 5x-6=0 2. x+25=0
Wednesday, November 12, 2014 by Jessica

Algebra
If p(x)=x^4-3x+2, then find the coefficient of the x^3 term in the polynomial (p(x))^3.
Wednesday, November 12, 2014 by Trish Goal

Algebra
If f(x) is a polynomial of degree 4, and g(x) is a polynomial of degree 2, then what is the degree of polynomial f(x)-g(x)?
Wednesday, November 12, 2014 by Trish Goal

Algebra
Suppose that f is a polynomial such that (x^2-1)*f(x)=5x^6-x^5+3x^4+x^3-25x^2+38x​-17. What is the degree of?
Wednesday, November 12, 2014 by Trish Goal

Algebra HELP!
An estimate of the frog population in a certain pond was found by catching 30 frogs, marking them, and returning them to the pond. The next day, 50 frogs were caught, of which 14 had been marked the previous day. Estimate the frog population of the pond.
Wednesday, November 12, 2014 by Ashley

Algebra
Find all positive integer values of c such that the equation x^2-7x+c=0 only has roots that are real and rational.
Wednesday, November 12, 2014 by Trish Goal

Algebra
The dimensions of a rectangle are such that it's length is 9 in. more than its width. If the length were doubled and if the width were decreased by 4 in., the area would be increased by 110 in^2. What are the length and width of the rectangle?
Wednesday, November 12, 2014 by Anonymous

Algebra
You invest an initial $4,500 in an account that has an annual interest rate of 4.5%, compounded daily. How much money will you have in the account after 10 years? Round your answer to the nearest whole number.
Wednesday, November 12, 2014 by Julia

Algebra 2 HELP plz
An object is launched upward with an initial velocity of 64 feet per second from a platform 80 feet high. 1.) Write a height model for the object. I wrote my model as .... h=-16t^2 +64t +80 2.) How many seconds until the maximum height is reached? I had 2 seconds as my answer ...
Wednesday, November 12, 2014 by kylie

College Algebra
Ozone occurs at all levels of Earth's atmosphere. The density of ozone varies both seasonally and latitudinally. At a given city, the density D(h) of ozone (in 10^−3cm/km) for altitudes h between 20 kilometers and 35 kilometers was determined experimentally. For the ...
Wednesday, November 12, 2014 by Kyle

College Algebra
Find the standard equation of a parabola that has a vertical axis and satisfies the given conditions. x-intercepts −2 and 8,highest point has y-coordinate 5
Wednesday, November 12, 2014 by Kyle

College Algebra
An object is projected vertically upward from the top of a building with an initial velocity of 112 ft/sec. Its distance s(t) in feet above the ground after t seconds is given by the equation s(t) = −16t^2 + 112t + 100. (a) Find its maximum distance above the ground. s(t...
Wednesday, November 12, 2014 by Kyle

Algebra
Let f,g, and h be polynomials such that h(x)=f(x)*g(x). If the constant term of f(x) is -4 and the constant term of h(x) is 3, what is g(0)?
Wednesday, November 12, 2014 by Trish Goal

Algebra
Consider the polynomials: F(x)= 4x^3 + 3x^2 + 2x +1 G(x)= 3 - 4x + 5x^2 - 6x^3 Find c such that the polynomial f(x)+cg(x) has degree 2.
Wednesday, November 12, 2014 by Trish Goal

algebra
Tom invests $10,000 into two accounts, one paying 2% interest per year and the other paying 5% interest per year. He invested 3 times as much in the account paying 5% than in the account paying 2%. how much interest will he ear in one year?
Wednesday, November 12, 2014 by Taylor

algebra
An exponential function passes through the points (2,3), (9,33), (15,K). What is the value of K?
Wednesday, November 12, 2014 by Taylor

intermediate algebra
two perpendicular lines intersect at (2,3) one of the lines has an x-intercept of 2. what are the equations of both lines?
Wednesday, November 12, 2014 by Taylor

Intermediate algebra
How many quarts of water must be mixed with 8 quarts of a 25% salt solutions to obtain a 17.5% salt solution?
Wednesday, November 12, 2014 by Taylor

math algebra
COULD SOME OF WITH DEGREE IN MATHS HELP ME TO SOLVE THIS SIMULTANEOUS EQUATION PLEASE, PLEASE ? I HAVE RIED DIFFERENT METHODS BUT IT CANNOT GET THE CORRECT ANSWER, AS IN THE BOOK. X-3/4 -Y-2/5 = -1/4 (1) 4-X/3+ 3-Y/2 = - 13/20 (2) 5x-15-4y+8= -1 5x-4y=17-1 8-2x+9-3y= -13 -2x-...
Wednesday, November 12, 2014 by mohammad

Algebra, help please!!!
A penny, nickel, dime, and a quarter are tossed. What is the probability of the event of obtaining at least three heads on the tosses?
Tuesday, November 11, 2014 by KG

College Algebra
graph linear equation Y=1/2x-3 and -x+2y=-6
Tuesday, November 11, 2014 by Ann

Advanced Algebra
How do I solve: how to solve 3x=4(4-2x)=11 and x-2y+4z=9 x=2z+2 y=-4z ? Thanks Need ASAP
Tuesday, November 11, 2014 by Theresa

Algebra Help URGENT Please?
Jamie is a salesperson in a shoe store and earns $95 per week, plus 20% of her weekly sales. If Jamie makes $475 in one week, what are her sales for that week?
Tuesday, November 11, 2014 by Jeff

Algebra help URGENT Please?
Chris and five of his friends go out to dinner. The total bill comes to $124.29. They decide to leave a 20% tip. Each person will contribute an equal amount to the total tip. Estimate what each person should contribute. a$29.00 b$21.00 c$5.00 $4.15
Tuesday, November 11, 2014 by Jeff

algebra
If 3.14*r^2=706.5? what does r=?
Tuesday, November 11, 2014 by Joshua

algebra 2
I don't understand this (x-y)/(x+y) + (x+y)/(x-y)
Tuesday, November 11, 2014 by Janet

Algebra please help answer ASAP
Milaela is competing in a race in which she both runs and rides a bicycle. She runs 5 kilometers in 0.5 hour and rides her bicycle 20 kilometers in 0.8 hour. Part A. At the given, how many kilometers can Mikaela run in 1 hour? part B. At the given rate, how many kilometers can...
Tuesday, November 11, 2014 by Iana

Algebra please help answer thx
5/8 of the 64 musicians in a music contest are guitarists. Some of the guitarists play jazz, solos, and the rest play classical solos. The ratio of the number of guitarists playing jazz solos to the total number of guitarists in the contest is1:4. How many guitarists play ...
Tuesday, November 11, 2014 by Iana

Intermediate Algebra
Environmental scientists often use cost-benefit models to estimate the cost of removing a pollutant from the environment as a function of the percentage of pollutant removed. Suppose a cost benefit function for the cost C (in millions of dollars) of removing x percent of the ...
Tuesday, November 11, 2014 by Anonymous1234

algebra
Andy hit three less field goals than three times the number of field goals Gary hit. Together, they scored 17 field goals. Write and Solve an equation to find how many field goals Gary and Andy scored.
Tuesday, November 11, 2014 by bob

algebra
the sum of the age of a girl and her brother is 26 year 3 years ago her age was 4 time the age of her brother. find their present age?
Tuesday, November 11, 2014 by kiran

algebra
f(x)=4.75x, gives its domain and range
Monday, November 10, 2014 by Anonymous

Algebra
6(3+2s) + 4(s + 8) =
Monday, November 10, 2014 by Krys

algebra
IF M(3-1) is the midpoint of the segment AB and A(8.12) is the coordinates of A. Fin the coordinates of point B.
Monday, November 10, 2014 by ER

Algebra 2
Solve 5x^2 − 34x = 0 by factoring. What is the smaller answer?
Monday, November 10, 2014 by Anonymous

Algebra
Find the number of ways that 4 flags can be displayed on a flagpole, one above the other, if 10 different flags are available.
Monday, November 10, 2014 by KG

College Algebra
If the point P is on the graph of a function f, find the corresponding point on the graph of the given function. P(4,9) y=1/3f(1/2x)-1
Monday, November 10, 2014 by Ashton

Math 201 ( Algebra)
A student has a number of $40 dollar and $80 dollar savings bonds to use for part of her expenses for college. The total value of the bonds is $1000. There are 7 more $40 bonds than $80 bonds. How many of each type of bond does she have?
Monday, November 10, 2014 by Jeff Scott

Math! Algebra 1!
A boat is traveling in a river with a current that has a speed of 1.5 km/h. In one hour, the boat can travel twice the distance downstream as it can travel upstream. How long will it take the boat to travel 100 km in still water?
Monday, November 10, 2014 by Dede

Algebra
"If possible, completely factor the expression. (If the expression is not factorable, enter NF.) x2 − 6x − 7"
Monday, November 10, 2014 by Lee

College Algebra
'rental miles: it cost 27.95 per day plus 0.15 per mile to rent a car. How many miles was a car driven that was rented for one day and had a rental bill of $45.95?'
Sunday, November 9, 2014 by Kia

Algebra
2/3y+5-3-11/12y. Trying to simplify. 2/3 y-11/12 y+5-3. 8/12y+5-3. 3/4y+2
Sunday, November 9, 2014 by Gypsea

college algebra
how to solve equation in the real number system, x^4 +12x^3 +10x^2-9x+9x+22=0
Sunday, November 9, 2014 by linda

college algebra
hw to solve equation in the real number system, x^4 +12x^3 +10x^2-9x+9x+22=0
Sunday, November 9, 2014 by linda

College algebra
Use descartes rule of sign to determine the possible number of positive real zeros and possible number of negative 6x^5-6x^4+7x^3-8
Sunday, November 9, 2014 by Samer

Algebra 2
Solving Systems of Equations in Three Variables: 3x+3y-z=-3 -2x-3y+2z=3 x-6y+3z=0 PLease show work
Sunday, November 9, 2014 by Stephy

math pre algebra
if x =7 and y=9 and the answer is 98 what would the expression be?
Sunday, November 9, 2014 by nikki

Algebra 2
Solving Systems of Equations in Three Variables: 3x+4y+z=1 x+3y-z=-2 -2x+y-2z=-5 Please show work
Sunday, November 9, 2014 by Stephy

Algebra 2
Solving By Factoring: The length of the side of a large square is 1 cm less than twice the length of the of the side of a smaller square. The area of the large square is 33cm^2 more than the area of the small square. Find the length of the sides of the two squares. Please show...
Sunday, November 9, 2014 by Miguelina

Algebra 2
Solving By Factoring (x-8)(x-5)=x Please show work!!!
Sunday, November 9, 2014 by ALEXANDAR

Algebra 2
Solving By Factoring 2x(2x+1)=2 Please show work!!!
Sunday, November 9, 2014 by Alicia

Algebra
What are the coordinates of the points where f(x) =x^3-x^2+x+1 And g(x)=x^3+x^2+x-1 intersect?
Sunday, November 9, 2014 by Trish Goal

Algebra
Let a and b be real numbers, where a<b, and let A= (a,a^2) and B=(b,b^2). The line AB (meaning the unique line that contains the point A and the point B) has x-intercept (-3/2,0) and y-intercept (0,3). Find a and b.
Sunday, November 9, 2014 by Trish Goal

algebra
A rectangle has a length that is 2 less than 3 times the width. If the area of this rectangle is 16, find the dimensions and the perimeter.
Sunday, November 9, 2014 by cmurda

Algebra
Assume that f(3)=4. Name a point that must be on the graph of y=1/2f(x/2).
Sunday, November 9, 2014 by Trish Goal

Algebra
Assume that f(3)=4. Name a point that must be on the graph of y=f(x)+4
Sunday, November 9, 2014 by Trish Goal

Algebra 2
Solving By Factoring (x-8)(x-5)=x Please show work!!!!
Saturday, November 8, 2014 by Alicia

Algebra 2
Solving By Factoring 4x(x-6)-x(x-2)=-24 Please show work!!!
Saturday, November 8, 2014 by Clara

Algebra 2
Solving By Factoring 6x^2-13x=-6 (x-8)(x-5)=x 4x(x-6)-x(x-2)=-24 Please show work I want to learn!!!!!!
Saturday, November 8, 2014 by Clara

Algebra
A kayaker paddles upstream for 1.5 hours then turns his kayak around and returns to his tent in 1 hour. He travels 3 miles each way. What is the rate of the rivers current?
Saturday, November 8, 2014 by John

Algebra 2
Solving By Factoring 7p^2-50p=-7 Please show work for I could learn.
Saturday, November 8, 2014 by Miguelina

algebra
Please Help Me Check My Work :) 1) Find the 5th term of - f(n)= 3(n-3) My answer- -279 2) Find the third term if the first term is 4 - f(n)= 2f(n-1)+2 My answer- 16 3) Find the third term using the explicit rule - f(n) 4-n/n+3 My answer- 1/6 4) Recursive Function- 1, -2, -5...
Saturday, November 8, 2014 by Kim

Algebra 2
Solving By Factoring Help me with these problems. 2x(2x+1)=2 5x^2+34x=7 Please show work I want to learn!!!
Saturday, November 8, 2014 by Migue

Algebra 2
Find x,y,z 2x-3y+z=-1 2x-y+2z=6 5x-4y+3z=6 Please show work I want to learn!!!
Saturday, November 8, 2014 by Anonymous

algebra
solve the equation for x -2(2x-2)=2x for y 9x+y=9 solve theinequality 2x-6<8x+18 solve 0.14-0.01(x+2)=-0.02(3-x)
Saturday, November 8, 2014 by gary

Intermediate Algebra
How much would you have to deposit today in order to have $5000 in 4 years in a bank account that pays 5% annual interest rate
Saturday, November 8, 2014 by Babydoll2007

Intermediate Algebra
A bank loaned out $17,000 part of it at a rate of 6%per year and the rest at 14%per year. If the interest received in one year totaled $1500 how much was loaned at 6%.
Saturday, November 8, 2014 by Babydoll2007

Intermediate Algebra
The average monthly benefit B for certain individuals is given by the equation B=18.75+585.72, where t is the number of years since 1990. In what year will the monthly benefit B exceed $1050? That is, solve B>1050.
Saturday, November 8, 2014 by Babydoll2007

Algebra
What are the coordinates of the points where the graphs of f(x)=x^3-x^2+x+1 and g(x)=x^3+x^2+x-1 intersect? Give your answer as a list of points separated by semicolons. (So "(1,-3); (2,3); (5,-7)" is a valid answer format.)
Friday, November 7, 2014 by Trish Goal

Algebra
Let a and b be real numbers, where a<b, and let A= (a,a^2) and B=(b,b^2). The line AB (meaning the unique line that contains the point A and the point B) has x-intercept (-3/2,0) and y-intercept (0,3). Find a and b.
Friday, November 7, 2014 by Trish Goal

algebra and geometry
On a floor plan, a room measures 2 inches by 5 inches. If the scale is 1 inch =4 feet, what is the actual size of the room?
Friday, November 7, 2014 by teshena

Algebra
Can you solve these equation by completing the square 2x^2+7x-4=0 3x^2x-1=0
Friday, November 7, 2014 by Amy

Algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.3 x 10^2 um. Find the earthquake's magnitude. Round your answer to one decimal place.
Friday, November 7, 2014 by Paul

Algebra
Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.50 * 10^5 watts cm^2 what is the db?
Friday, November 7, 2014 by Roger

algebra
would multiplying 3 negative integers always equal a positive integer?
Friday, November 7, 2014 by anon

Algebra HELP!
Ryan is building matchstick square sequences, as shown ( first figure used 4, second figure used 7, third figure used 10, and the forth figure used 13). He used 599 matchsticks to form the last two figures in his sequences. How many matchsticks did he use in each of the last ...
Thursday, November 6, 2014 by A

algebra help!
what is the domain of the function below? {(0,2)},(3,1),(5,2),(8,4)}? a. {1,2,4} b. {0,3,5,8} c. {0,1,2,3,4,5,8} d. {(0,2),(3,1),(5,2),(8,4)} ***** Is the following relation a function? {(0.3,0.6),(0.4,0.8),(0.3,0.7),(0.5,0.5)​} a. yes b. no ***** c. cannot be determined
Thursday, November 6, 2014 by Nikky

Algebra
Let a and b be real numbers, where a<b, and let A=(a,a^2) and B=(b,b^2). The line AB( meaning the unique line that contains the point A and the point B) has x-interecept (-3/2,0) and y-intercept (0,3). Find a and b.
Thursday, November 6, 2014 by Trish Goal

Algebra
What are the coordinates of the points where f(x)=x^3-x^2+x+1 and g(x)=x^3+x^2+x-1 intersect?
Thursday, November 6, 2014 by Trish Goal

algebra
Give an equation of a line in slope intercept form that would be parallel to the equation y=3x+5 and passes through (0,3).
Thursday, November 6, 2014 by Taylor

Intermediate Algebra
Atmospheric carbon dioxide levels continue to increase and are suspected to contribute to global warming. The solution to the polynomial equation x3 – 380x2 + 2x – 760 = 0 gives the record high amount of carbon dioxide in parts per million (ppm) in 2005, as measured ...
Thursday, November 6, 2014 by Babydoll2007

Algebra/Math
The graphs of a function f(x)=3x+b and its inverse function f^-1(x) intersect at the point (-3,a). Given that b and a are both integers, what is the value of a?
Thursday, November 6, 2014 by Trish Goal

Intermediate Algebra
Explain why (-9)1/2 is not a real number but -9 1/2 is a real number.
Thursday, November 6, 2014 by Babydoll2007

Algebra help
Your cost c to buy w pounds of walnuts at $6/Ib represented by c = 6w A truck originally held 24 chairs. You remove 2 chairs at a time. The number of chairs n remaining after you make t trips is represented by n= 24-2t. The volume V remaining in a 243-ft^3 pile of gravel ...
Thursday, November 6, 2014 by Mia

Math/Algebra
The graphs of y=3-x^2+x^3 and y=1+x^2+x^3 intersect in multiple points. Find the maximum difference between the y-coordinates of these intersection points.
Thursday, November 6, 2014 by Trish Goal

Algebra
Find all points (x,y) that are 13 units away from the point (2,7) and that lie on the line x-2y=10.
Thursday, November 6, 2014 by Trish Goal

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