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May 23, 2015

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

algebra 1
Graph each rational function;identify the domain and ranges;and compare the graph with the graph y=1/x. 1.y=-10/x 2.y=1/(x+3)+3
Wednesday, April 24, 2013 at 3:53pm

college algebra
Solve the logarithmic equation. Log x +log2x = 4 Wouldn't this be no solution because log x is undefined?
Wednesday, April 24, 2013 at 3:49pm

algebra 1
Divide x^2+3x-18 by x-3
Wednesday, April 24, 2013 at 1:14pm

algebra 1
Solve the rational equation. 3/(x)+6/(x+3)=8/(x+1)
Wednesday, April 24, 2013 at 1:13pm

algebra 1
What is b^2-b/2
Wednesday, April 24, 2013 at 11:47am

10 grade algebra
In the following system of equations, what does x equal? -10x - 2y = 56 6x - 2y = -40 x = 6 or x = -6 or x = 2 or x = -2
Wednesday, April 24, 2013 at 9:45am

10 grade algebra
15. In the following system of equations, what does x equal? -10x + 4y = -64 -10x - 8y = -112
Wednesday, April 24, 2013 at 9:29am

College algebra
20x^2+12x
Wednesday, April 24, 2013 at 9:02am

algebra
a rectangle with the corners labled wxyz,has a height of(2b-3). what is the equation for finding the lencth?
Wednesday, April 24, 2013 at 6:17am

algebra 1
Solve the rational equation below. 1/x-2+ 2x/(x-2)(x-8)=x/2(x-8)
Wednesday, April 24, 2013 at 2:51am

algebra
find the vertex of 400-16tsquared
Wednesday, April 24, 2013 at 1:21am

algebra
An object that is projected straight downward with initial velocity v feet per second travels a distance s vt 16t 2 =+ , where t =time in seconds. If Ramón is standing on a balcony 84 feet above the ground and throws a penny straight down with an initial velocity of 10 ...
Wednesday, April 24, 2013 at 12:39am

algebra
An object that is projected straight downward with initial velocity v feet per second travels a distance s vt 16t 2 =+ , where t =time in seconds. If Ramón is standing on a balcony 84 feet above the ground and throws a penny straight down with an initial velocity of 10 ...
Wednesday, April 24, 2013 at 12:39am

algebra
frank can wash the car in 2/3 the time his younger brother,joe,can wash the car.they worked together and washed the car in 40 minutes.how long would it have taken each boy working separately?
Tuesday, April 23, 2013 at 10:58pm

algebra
if x is a x real number what is the sum of x and the opposite of x a-1 b-0 c:-x d- x+1/x
Tuesday, April 23, 2013 at 10:00pm

algebra
what ca be concluded from the box below x+3>7 then x+3-3>7-3 a:x-3 b:x+3-3>7-3 c:
Tuesday, April 23, 2013 at 9:58pm

algebra
find the vertex of 400-16tsquared
Tuesday, April 23, 2013 at 9:54pm

math algebra
Paul Websters motorboat can travel 15 mph in still water. Traveling with the current of a river, the boat can travel 20 miles in the same time it takes to go 10 miles againt the current. Find the speed of the current.
Tuesday, April 23, 2013 at 7:57pm

algebra 1,urgent
the expression (4x^2-3x+1)-(x^3+2x+7) what is the coefficient of the x term in the simplified expression? what is an equation of a line parallel to the line with equation 2 y=14-6x a.y=-6x+18 b.y=-3x-9 c.y=6x+3 d.y=3x+8 Solve linear system, which substitution of unkowns is ...
Tuesday, April 23, 2013 at 6:36pm

algebra 2
a two-digit counting number has a value that is 13 greater than 3 times the sum of the digits. If the units digit is 1 greater than the tens digit, what is the number
Tuesday, April 23, 2013 at 4:16pm

algebra 2
factor 2x^3+54 I factored it to 2(x^3+27). can it be factored more or is that it?
Tuesday, April 23, 2013 at 3:12pm

Algebra
A circular mirror is surrounded by a square metal frame. The radius of the mirror is 5x. The side length of the metal frame is 15x. What is the area of the metal frame? Write your answer in factored form.
Tuesday, April 23, 2013 at 3:07pm

Algebra
A circular mirror is surrounded by a square metal frame. The radius of the mirror is 5x. The side length of the metal frame is 15x. What is the area of the metal frame? Write your answer in factored form.
Tuesday, April 23, 2013 at 3:07pm

Algebra
A circular mirror is surrounded by a square metal frame. The radius of the mirror is 5x. The side length of the metal frame is 15x. What is the area of the metal frame? Write your answer in factored form.
Tuesday, April 23, 2013 at 3:02pm

algebra
Abby Tanenbaum paddled her canoe 10 miles upstream, adn then paddled back to her starting point. If the rate of the current was 3 mph,and the entire trip took 3.5 hours, what was Abby's rate (in still water)?
Tuesday, April 23, 2013 at 2:53pm

algebra 1
Solve rational equation 1. 2/b-2=b/b^2-3b+2 + b/2b-2
Tuesday, April 23, 2013 at 12:43pm

algebra 1
What is b^2-b/2
Tuesday, April 23, 2013 at 12:18pm

Algebra 2
a) The average height of sunflowers in a field is 64 inches with a standard deviation of 3.5 inches. Describe a normal curve for the distribution, including the values on the horizontal axis at one, two, and three standard deviations from the mean. b) If there are 3,000 plants...
Tuesday, April 23, 2013 at 12:13pm

Algebra Math
The function given by f (x) = 9/5 x + 32 converts x degrees Celsius to an equivalent temperature in degrees Fahrenheit. (a) Is f a one-to-one function? Why or why not? (b) Find f -1(x) and interpret what it calculates
Tuesday, April 23, 2013 at 8:06am

Algebra 2
Suppose you are researching the eating habits of people your age. What sampling method could you use to find the percent of students in your grade who eat five servings of fruit and vegetables each day? What is an example of a survey question that does not have bias?
Tuesday, April 23, 2013 at 7:19am

College algebra
Solve equation by expressing each side as a power of the same base & then equating exponents. e^x+5=1/e^6
Tuesday, April 23, 2013 at 3:24am

Algebra
Input 16 output 2 input 24 output 4 input 40 output 6 input 52 output 8 find y if x is given. X is input
Tuesday, April 23, 2013 at 12:17am

Algebra
Input 16 output 2 input 24 output 4 input 40 output 6 input 52 output 8 find y if x is given. X is input
Tuesday, April 23, 2013 at 12:17am

algebra
If a billiard table is x feet, how do I write an expression involving x that represents its length?
Monday, April 22, 2013 at 11:03pm

Algebra
Drum major tosses the baton into the air from height of 6feet and initial velocity of 45 ft/sec. What is max height? We are to use ht=h+vt-1/2at^2
Monday, April 22, 2013 at 10:16pm

algebra
Solve. 10/(3x) + 4/3 = (7 + x)/2x A) x = 1/3 B) x = 17/5x C) x = 1/5 D) x = 1/6 PLEASE HELP MRS. SUE!
Monday, April 22, 2013 at 10:02pm

Algebra
What is the maxima and minima of a parobola?
Monday, April 22, 2013 at 10:01pm

Algebra
The graph of y=x^2-3x+6 has how many intercepts? (the term x^2 means x squared)
Monday, April 22, 2013 at 9:59pm

algebra
6 ways to make 18
Monday, April 22, 2013 at 9:32pm

Algebra
Which algebraic expression is equivalent to the expression below? 11(8 + 3x) + 20
Monday, April 22, 2013 at 8:45pm

Algebra 1
What is an equation of a line perpendicular to the line with equation y = 1 - 3x a.y=-3x + 5 b. y=3x + 5 c.y=-1/3x + 5 d. y=1/3x + 5 To solve the linear system below, which substitution of unkowns is proper ? x + 4y= -6 5x - 3y = -16 a. substitute -4y-6 for x in the first ...
Monday, April 22, 2013 at 7:00pm

Algebra 1
1.Simplify the expression below (-2w^3)^5 / 8w. What is the value of the exponent on "w" ? 2.Simplify the expression (4x^2 - 3x +1) - (x^3 +2x +7). What is the coefficient of the x term in the simplfied expression? 3. Jack Watson is wroking in a lab making microchips...
Monday, April 22, 2013 at 6:35pm

algebra-word problem
2001-2005 number hours user spent on the internet each week increased 110% by hours. This percent increased amount to 11 hours. Find the average number of hours that a user spent on the internet in each week in 2001 and 2005. Having problems with setting it up.
Monday, April 22, 2013 at 5:29pm

algebra
how do you make a stem-and-leaf plot for numbers like this: 24,000 28,000 26,000 32,000 30,000 41,000 27,000 22,000 26,000 33,000
Monday, April 22, 2013 at 5:10pm

Algebra
How are the processes of adding monomials and adding polynomials alike? How are the processes different?
Monday, April 22, 2013 at 2:27pm

Algebra
Which inequality represents the solution set for the compound inequality below? -3<or equal to -2x + 1 < 11
Monday, April 22, 2013 at 2:01pm

Algebra 2 ..
Simplify. 1. (1/log base 3 of 60)+ (1/log base 4 of 60)+ (1/log base 5 of 60) 2. (log base 16 of x)+ ( log base 4 of x) + (log base 2 of x)=7
Sunday, April 21, 2013 at 11:12pm

algebra 2
During the first part of a trip a canoeist travels 26 miles at a certain speed. The canoeist travels 8 miles on the second part of the trip at a speed 5 mph slower. Total time is 3 hours. What was the seed on each part of the trip
Sunday, April 21, 2013 at 11:10pm

algebra 1-2
what is a natural number?
Sunday, April 21, 2013 at 7:41pm

algebra 2
what is the value of the rational expression below when x is equal to three? 17+x/x+2
Sunday, April 21, 2013 at 2:58pm

Algebra
As a promotion, a store draws the name of a customers each week. The prize is a coupon for the store. If winner is not present at drawing, he cannnot claim the prize and the amount of the coupon increases for the next weeks drawing. the function f(x)= 20(1.2)to the x power, ...
Sunday, April 21, 2013 at 1:29pm

Algebra 1-2
Jack is making square pillows for his room. He is using different fabric for each face, one width a width of 80 inches and the other with a width of 48 inches. What is the length of one side the largest pillow he can make if all the pillows are the same size, each face is made...
Saturday, April 20, 2013 at 11:13pm

algebra
p varies jointly as u and B^2 when u = 4 and B = 5, P = 300. find P when u is 1 and Bis 11
Saturday, April 20, 2013 at 11:01pm

Algebra
-2x+1>7
Saturday, April 20, 2013 at 7:07pm

Algebra
Write the function whose graph of y=(x+4)^2, but is reflected about the y axis. y=
Saturday, April 20, 2013 at 6:53pm

Algebra
If the sum of 3 non-zero distinct real numbers a, b and c is 2 , and the two sets {a,b,c} and {1/a ,1/b ,1/c} are the same, what is the value of a^2 +b^2 +c^2 ?
Saturday, April 20, 2013 at 2:30pm

Algebra
I have to compute the determinant of the matrix without using a calculator. If the determinant is zero, write singular matrix. 1 -1 -1 -4 2 0 0 3 1
Saturday, April 20, 2013 at 2:02pm

algebra
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows: 26 said they drove alone. 34 rode in a carpool. 34 rode public transportation. 7 used both carpools and public transportation. 6 used both a carpool and ...
Saturday, April 20, 2013 at 8:06am

algebra
Charlene made the sketch below in order to find the height x of a pole. She positioned a mirror on the ground so that she could see the reflection of the top of the pole. Her height, her distance from the mirror, and her line of sight to the mirror determine the smaller ...
Friday, April 19, 2013 at 9:56pm

PLEASE HELP! college algebra
Given the following piecewise function f(x)= {-x+1 for x < 0 {-1 for 0 ≤ x ≤ 3 {-2x for x > 3 a) Find the domain b) Find the range c) Find the intercepts d) Is f continuous on its domain? If not, state where f is discontinuous. e) Graph the function
Friday, April 19, 2013 at 8:42pm

Algebra
Find the specified value of the following functions and state the domain of each one. f(x)=x-11;g(x)=7x^2 (a) (f+g)(5)=
Friday, April 19, 2013 at 8:07pm

Algebra
Simplify the expression 0.2y3+0.3y3+0.1y3 use integers or decimals for any numbers in the expression.
Friday, April 19, 2013 at 5:55pm

algebra
how many pieces of wood each 7 1/2 inches long can be cut from a board that is 45 inches long?
Friday, April 19, 2013 at 4:44pm

Algebra
Let S be the sum of all values of r such that the coefficient of the x^2 term in the expansion of (x−3)(rx+2)^3 is −6 . If S=a/b, where a and b are coprime positive integers, what is the value of a+b
Friday, April 19, 2013 at 3:37pm

Algebra
Given the following piecewise function f(x)= {-x+1 for x < 0 {-1 for 0 ≤ x ≤ 3 {-2x for x > 3 a) Find the domain b) Find the range c) Find the intercepts d) Is f continuous on its domain? If not, state where f is discontinuous. e) Graph the function
Friday, April 19, 2013 at 3:24pm

Algebra
Evaluate the determinant of the matrix. [-4 5 6 0 4 4 -2 -5 4]
Friday, April 19, 2013 at 3:16pm

Algebra
Simplify (√7 + 8)(√63)
Friday, April 19, 2013 at 3:08pm

Algebra 2 variables
Find the values of the variables. [-12 -w^2] = [2k -81] [2f 3] [-4 3] Show your work?
Friday, April 19, 2013 at 2:52pm

college algebra
1.write the formula for the function that has degree 3 and zeros of -1,2 and 5 with a lead coefficient of 1? (leave answer in factored form) f(x)= 2. Write the formula for the function that has degree of 4 and zeros of -4, 3(multiplicity 2) and 4 with a lead coefficient of -1...
Friday, April 19, 2013 at 2:24pm

Algebra 2
Find the sum [1 4] [0 0] [0 3] + [0 0] A - [1 4] [0 3] B - undefined C - [0 0] [0 0] D - [1 0] [4 3]
Friday, April 19, 2013 at 2:13pm

Algebra 1
Rena has to pay the first $100 of her medical expenses each year before she qualifies for her insurance company to begin paying. After paying the $100 "deductible," her insurance company will pay 80% of her medical expenses. This year, her total medical expenses came...
Friday, April 19, 2013 at 12:17pm

Algebra
For the given equation, list the intercepts and test for symmetry. 2+y-121=0 Show tests algebraically
Friday, April 19, 2013 at 12:08pm

Algebra 1
1. How many solutions does the linear system have ? 3x - y = 4 -3x + 11y = 2 2. A line passes through the points (6,4) and (5,-3). What is the equation of the line in point-slope form ? a. x - 6 = 7(y-4) b. y - 4 = 7(x-6) c. y + 6 = 7(x+4) d. y - 6 = 7(x-4) 3. A line passes ...
Friday, April 19, 2013 at 10:33am

Algebra
Suppose f(x) is some polynomial such that x−45 is a factor of f(x) . What value of x must be a root of f(x)=0 ?
Friday, April 19, 2013 at 4:58am

Algebra
Solve the equation. Leave answer in simplest radical form. n^2-2n+1=5
Thursday, April 18, 2013 at 10:20pm

Algebra
A shingle falls straight down from the roof of a building that is 144 feet tall. a. Use a vertical motion model to write an equation that gives the height h of the shingle t seconds after it falls. b. When does the shingle hit the ground? c. If the same shingle were dropped ...
Thursday, April 18, 2013 at 9:13pm

Algebra 2
The strength of a beam varies inversely with the square of its length. If a 15-foot beam can support 500 pounds, how many pounds can a 20-foot beam support? A) 261.15 B)279.33 C)281.25 D)732.50
Thursday, April 18, 2013 at 8:09pm

Algebra
An object is launched upward from the ground with an initial vertical velocity of 40 feet per second. After how many seconds does the object reach a height of 25 feet? I need to use the vertical motion model. Here is my work so far. h = -17t^2 + 40t + 25
Thursday, April 18, 2013 at 8:02pm

Algebra 1
1.To solve the linear system below, which substitution of unkowns is proper ? A.substitute 5x-16 for y in the first eqn B.substitute 5x+16 for y in the first eqn C.substitute 5x+12 for y in the first eqn D.substitute 7y-4 for x in the second eqn 2.A line with a slope of -2 ...
Thursday, April 18, 2013 at 7:29pm

algebra 1
is the last term a prefect square 24y if so factor it
Thursday, April 18, 2013 at 7:12pm

Algebra
Solve for x. (3/x+1)+4/x=2
Thursday, April 18, 2013 at 6:35pm

Algebra
The value of a computer bought in 1998 decreases as time passes. Two years after the computer was bought, it was worth $2,600. Five years after it was bought, it was worth $2,000. If the relationship between number of years past 1998 and value of the computer is linear, write ...
Thursday, April 18, 2013 at 4:38pm

Algebra
A chain store manager hs been told by the main office that daily profit, P, as related to the number of clerks working that day, x, according to the functions P=-25x^2 + 300x. What number of clerks will maximize teh profit, and what is the maximum possible profit?
Thursday, April 18, 2013 at 3:33pm

algebra 2
10,000 raffle tickets were sold and you buy 12 tickets. Whats the odds against winning
Thursday, April 18, 2013 at 2:29pm

Algebra 1
1.What is the value of x-y if 5x-3y=3 and -x+3y=9 ? 2.Rewrite -2x^-1 /x^2y^-1 with positive exponents 3. What is the value of xy if x+5y=26 and -x+y=4 ?
Thursday, April 18, 2013 at 12:18pm

algebra
In a survey of a TriDelt chapter with 50 members, 21 were taking mathematics, 33 were taking English, and 6 were taking both. How many were not taking either of these subjects? members
Thursday, April 18, 2013 at 12:11pm

ALGEBRA.....URGENT
Find the number of solutions to the equation 1/a+1/b+1/c+1/d=1 where a, b, c, d are positive integers and a≤ b≤ c≤ d.
Thursday, April 18, 2013 at 4:09am

algeBRA
How many integer values x satisfy the inequality 2<3x−1/6<5 ?
Thursday, April 18, 2013 at 4:08am

ALGEBRA.
The product of 2 positive integers is 1000. What is the smallest possible sum of these 2 integers?
Thursday, April 18, 2013 at 4:08am

algebra
multiply and simplify. 3b^2-27/12b^2-300 x 48b+240/4b-12
Thursday, April 18, 2013 at 1:04am

Algebra 2 ..
1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39 degrees 2. What angle in the first quadrant ...
Thursday, April 18, 2013 at 1:00am

algebra
divide and simplify -16+2w/3 121w-968/9
Thursday, April 18, 2013 at 1:00am

algebra 1
Do you know of any Mutiplying and dividing rational expression calculators that shows the steps?
Thursday, April 18, 2013 at 12:58am

algebra
(h=-16t^2+64t+80), after how many seconds will the object hit the ground at the bottom of the cliff.
Thursday, April 18, 2013 at 12:11am

Algebra
a cyclist and a horse rider are going the same speed. the rider stops after 11.1 miles. the cyclist goes for another hour and 18.5 miles. how fast is each one going?
Wednesday, April 17, 2013 at 11:35pm

Algebra 2....
1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39 degrees 2. What angle in the first quadrant ...
Wednesday, April 17, 2013 at 10:41pm

Algebra
dividing radical expressions √5k^4 + 3√2k ______________ √3k^3
Wednesday, April 17, 2013 at 9:59pm

Algebra
I have four problems I'm having trouble with. I need to solve the equations by completing the square. 1) w^2 - 5w = 11/4 2) z^2 + 11z = -21/4 3) k^2 - 8k - 7 = 0 4) v^2 - 7v + 1 = 0
Wednesday, April 17, 2013 at 9:57pm

Algebra
It takes 10 hours to fill a pool with water, and 20 hours to drain it. If the pool is empty and the drain is open, how long will it take to fill the pool?
Wednesday, April 17, 2013 at 9:00pm

Algebra
2 questions I need some help with please! 1. Find the partial sum S5. an= -2n+16 2.Solve the system by triangularizing the augmented matrix and using bakc substitution. 7x=y-6 3y= -5-2x
Wednesday, April 17, 2013 at 8:38pm

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Homework Help: Math

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