Friday
April 17, 2015

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra
Find an equation that has the given solutions. (Assume the equation has a degree of 3.) x = −5, x = 5, x = 2/3
Friday, April 17, 2015 at 5:41pm

Algebra
Solve the following quadratic equation by completing the square. (Enter your answers as a comma-separated list.) a^2-12a+52=0
Friday, April 17, 2015 at 5:31pm

Algebra
Find an equation that has the given solutions. (Assume the equation has a degree of 2.) a=-1/3, a=3/7
Friday, April 17, 2015 at 5:27pm

Algebra
Use the properties of exponents to simplify the following as much as possible. Assume the bases are positive. (8a^3b^6)^(1/3) / (16a^8b^−4)^(1/4)
Friday, April 17, 2015 at 5:25pm

Algebra
Solve each equation using the quadratic formula. (Enter your answers as a comma-separated list.) x^2 -2x +10=0
Friday, April 17, 2015 at 5:17pm

Algebra
Solve each equation using the quadratic formula. (Enter your answers as a comma-separated list.) x^2-2x+2=0
Friday, April 17, 2015 at 5:16pm

Algebra
Solve the equation. Use factoring or the quadratic formula, whichever is appropriate. Try factoring first. If you have any difficulty factoring, then go right to the quadratic formula. (Enter your answers as a comma-separated list.) (x+2)^2 + (x-7)(x-2)=16
Friday, April 17, 2015 at 5:15pm

Algebra
An object is thrown downward with an initial velocity of 4 feet per second. The relationship between the distance s it travels and time t is given by s = 4t + 16t2. How long does it take the object to fall 72 feet?
Friday, April 17, 2015 at 5:13pm

Algebra
a car driver accelerates to a speed of 35 miles per hour and then takes her foot off the gas pedal even though she does not press the brake pedal at any time she eventually rolls to a stop which of the following most likely causes the car to come to a stop
Friday, April 17, 2015 at 12:39pm

algebra
the weight (in kg) of each student in a group of students is 9 times his height (in feet) write a linear equation with x representing the height (in feet) and y representing the weight i kg of the student
Friday, April 17, 2015 at 7:13am

algebra
1. a chemical compound requires 8 ounces of chemical a and 12 ounces of chemical b. a mixture contains 24 ounces of chemical a and 30 ounces of chemical b. how can you fix the mixture to make the chemical compound? 2. in an animal shelter, the ratio of cats to dogs is 5 to 3. ...
Friday, April 17, 2015 at 2:16am

Algebra (check my work?)
1. Write a proportion using an unknown value x and the ratio 5:6 then solve it. 5/6 = x/12 6 * 2 = 12 5 * 2 = 10 x = 10 2. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of trombones in the orchestra...
Friday, April 17, 2015 at 12:49am

Math
6X+5Y=7X+3Y=2(X+6Y-1) solve by algebra method
Thursday, April 16, 2015 at 11:32pm

Algebra
5. The local soccer team won the championship a several years ago, and since then, ticket prices have been increasing $20 per year. The year they won the championship, tickets were $50. Write a recursive formula for a sequence that will model ticket prices. Is the sequence ...
Thursday, April 16, 2015 at 11:31pm

Intermidiate Algebra
I need someone to please help show me how to simplify radicals. 27 -2/3 ____ 27 -1/3
Thursday, April 16, 2015 at 9:24pm

algebra
the isotope has a very short life of 13 half-life days. estimate the percentage of the original amount of the isotope released by the explosion that remains 3 days after the explosion?
Thursday, April 16, 2015 at 5:11pm

Algebra
Write a proportion using an unknown value x and the ratio 5:6 then solve it. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of trombones in the orchestra. How many trombones are in the orchestra? The ...
Thursday, April 16, 2015 at 3:47pm

algebra
A country's population in 1993 was 171 million estimate the population in 2012 using the exponential growth formula round your answer to the nearest million?
Thursday, April 16, 2015 at 11:41am

Algebra 1
How many seconds would it take an egg to hit the ground if it's at a 363 height range?
Thursday, April 16, 2015 at 9:35am

Algebra
When Will the dependent variable in the equation y= the square root of x+4(end of square root)-3 equal or exceed 4?
Thursday, April 16, 2015 at 8:15am

ALGEBRA 2 (LOGARITHMIC FUNCTIONS)
These are some I chose to practice but I have a hard time knowing how to do it. The answers are online but that doesn't help. These deal with logarithmic functions etc. PLEASE HELP! THANKYOU 1.)solve the equation: 3^(x+1)=27^(x+3) 2.) e^x=5 3.) 2^(3x)+9=25 4.) 4^(x+1)=21 5...
Wednesday, April 15, 2015 at 11:55pm

Algebra 2
How many arrangements are possible using the letters in the word FUZZY if each letter "Z" is distinctly different than the other? How many arrangements are possible if the letter "Z" is interchangeabe with the other? Explain your reasoning.
Wednesday, April 15, 2015 at 11:40pm

algebra
what is the first step when solving x/15=3/5? write a proportion using an unknown value x and the ratio 5:6 then solve it. in an orchestra, the ratio of trombones to violas is 1 to 3. a. there are 9 violas. write a proportion that gives the number t of trombones in the ...
Wednesday, April 15, 2015 at 10:31pm

ALGEBRA PLSSSSSS
For the function f(x)=x^2-12, find (f o f^-1)(4)
Wednesday, April 15, 2015 at 6:47pm

ALGEBRA PLSSSSSS
For the function f(x)=x+9, find (f o f^-1)(5)
Wednesday, April 15, 2015 at 6:46pm

ALGEBRA PLSSSSSS
For the function f(x)=(8-2x)^2, find f^-1. Determine weather f^-1 is a function.
Wednesday, April 15, 2015 at 6:44pm

ALGEBRA PLSSSSSS
What is the inverse of the given function? y=7x^2-3
Wednesday, April 15, 2015 at 6:42pm

ALGEBRA PLSSSSSS
Let f(x)=x+2 and g(x)=x^2. Find (g o f)(-5)
Wednesday, April 15, 2015 at 6:41pm

ALGEBRA PLSSSSSS
f(x)=x^2-16 and g(x)=x+4 find f/g and its domain.
Wednesday, April 15, 2015 at 6:39pm

algebra PLSSSSSS
Let f(x)=3x-6 ang g(x)=x-2 find f/g and its domain.
Wednesday, April 15, 2015 at 6:38pm

linear algebra
Let L: R2 ¨ R2 be a linear transformation for which we know that L(1 1)= [-2 1] L(-1 1)=[3 2] a)what is L(-1 5) b)what is L(u v)?
Wednesday, April 15, 2015 at 8:10am

Algebra
Find the following quotient. (4-7i)/(4+7i)
Wednesday, April 15, 2015 at 7:12am

Algebra
Factor the follwoing as if this were a trinomial 4t^5/4 - 9
Wednesday, April 15, 2015 at 7:09am

algebra
I need some help with this math problem: Let n be the number of oil refineries at t years since 2005. A reasonable model of oil refineries is n= -2.23t + 210.53. What is the slope of this model? What does it mean in this situation?
Wednesday, April 15, 2015 at 12:19am

Algebra
Find an angle with a positive measure and an angle negative measure that are coterminal with each angle. 1. 370 degrees 2. -3π /4 3. 5 π/2 pi sign = π
Tuesday, April 14, 2015 at 6:18am

algebra
A package is dropped from a helicopter at 1600 feet. The height of the package can be modeled by: h = -16t squared + 1600 , where h is the height of the package in feet and t is the time in seconds. How long will it take for the package to hit the ground?
Monday, April 13, 2015 at 7:42pm

Algebra
The sum of two numbers is 44. The smaller number is 6 less than the larger number. What are the numbers? How do I solve this?
Monday, April 13, 2015 at 7:35pm

Intermediate Algebra
Compound Inequalities Definition Words ◦Compound inequalities ◦And ◦Or ◦Intersection ◦Union 1). 12 < 12 + 4x < 0 2). 12 – x > 15 or 7x – 13 > 1 I divide it up the compound inequalities into two problems 12 <12+ 4x 4 x >...
Monday, April 13, 2015 at 7:33pm

Algebra 1
What is the excluded value of the rational expression? 2x+6 / 4x-8
Monday, April 13, 2015 at 7:02pm

Pre Algebra Probability
You and 5 friends go to a concert. In how many different ways can you sit in the assigned seats? ***=my answer a.720 b.120*** c.30 d.15
Monday, April 13, 2015 at 6:11pm

Pre Algebra Probability
Each of two urns contains green balls and red balls. urn 1 contains 10 green balls and 14 red balls. urn 2 contains 4 green balls and 11 red balls. if a ball is drawn from each urn what is p(red and red)? BTW- i really don't know what an urn is, i guess a basket or some ...
Monday, April 13, 2015 at 4:52pm

Algebra
How do I answer this? Robert needs to cut four shelves from a board that is 2.5 meters long. The second shelf is 18 centimeters longer than twice the length of the first shelf. The third shelf is 12 centimeters shorter than the first shelf. The remaining shelf is 4 centimeters...
Monday, April 13, 2015 at 4:37pm

Algebra 8th grade
(y2-3y)
Monday, April 13, 2015 at 4:36pm

Algebra 1
A pyrotechnician plans for two fireworks to explode together at the same height in the air. They travel at speeds shown at the right. Firework B is launched 0.25 s before Firework A. How many seconds after Firework B launches will both fireworks explode? Firework A: 220 ft/s ...
Monday, April 13, 2015 at 4:23pm

algebra
Jimmy bought a car in January of 2010 worth $25, 500. He submitted the car for valuation in January 2015 and was told that its worth is now $20, 450. Assuming that the depreciation is linear. a) Find the rate at which the car is decreasing in value. Treat the year 2000 as 0 t...
Monday, April 13, 2015 at 4:05pm

Algebra 1
A square purple rug has a blue square in the center. The side length of the blue square is x inches and the purple region is 8 in. What is the area of the purple part.
Monday, April 13, 2015 at 3:42pm

Algebra 1
The size of a computer monitor is given by the length of the diagonal of the screen.The ratio of the height to the width of wide screen monitors is 9:16. Find the expressions for the width and height of a wide screen monitor in terms of the lengthy of its diagonal.
Monday, April 13, 2015 at 3:15pm

Algebra 1
In a right triangle the adjacent side = 12, the opposite side = 35, and the hypotenuse = 37. What does the opposite angle =? a-71,1 deg b-18.9 deg c-29.2 deg d-90 deg my answer is 18.89 degrees
Monday, April 13, 2015 at 3:11pm

Algebra 1
sqrt 15y * 3 sqrt 81y Simplify the radical expression My answer is 27 sqrt 15y^2
Monday, April 13, 2015 at 2:30pm

algebra
Bill spent less than $23 on lunch for his co-workers. If burgers cost $5.25 each and sodas cost $2.25 each, which of the following is not a possible combination of burgers and sodas that Bill could have purchased?
Monday, April 13, 2015 at 1:24pm

beginig algebra
what is -3(k-4)=51
Monday, April 13, 2015 at 10:05am

algebra
A penny has a 1 cm radius. What is its diameter? Its circumference? its area?
Monday, April 13, 2015 at 9:53am

algebra
In a natural gas pipeline, the velocity v (in m/s) of the gas as a function of the distance x (in cm) from the wall of the pipe is given by v = 5.2x − x^2 . Determine x for v = 4.8 m/s.
Monday, April 13, 2015 at 9:52am

algebra,mathematics
Question 1 which of the following is/are true? A.(2/a-b) (b-a/2) =-1. B.If x=-1/2 and y=-2 then -x^2 - 4x/y +y^2=2 3/4. C.√1-x /√x-1 is defined for all x€R,x is not equal to 1. Question 2 The solution set of -x-√2x^2 +x -5 = 1 is 1.Q 2.{-2} 3.{-2,3} 4.{3...
Monday, April 13, 2015 at 8:13am

ALGEBRA PLSSSSSS
What are all the real zeros of y=(x-12)^3 -10?
Sunday, April 12, 2015 at 7:23pm

algebra plsssSSS
What are the real or imaginary solution of the polynomials x^4 -52x^2 +576=0
Sunday, April 12, 2015 at 7:12pm

ALGEBRA PLSSSSSS
What polynomial has a graph that passes through the given points? (-2,2)(-1,-1)(1,5)(3,67)
Sunday, April 12, 2015 at 7:05pm

Algebra 2 A Conic Section
Franco is adjusting a satellite because he finds it is not focusing the incoming radio waves perfectly. The shape of his satellite can be modeled by y^2+6y-3x+3=0, where x and y are modeled in inches. He realizes that the static is a result of the feed antenna shifting ...
Sunday, April 12, 2015 at 6:10pm

Algebra 1
Jim shoots an arrow into the air. The height of the arrow in feet, t seconds after shooting, is shown by the function below. h(t)=64t-16t^2 What is the domain of the function and what does it represent?
Sunday, April 12, 2015 at 3:29pm

Algebra 1
h(t)=-16x^2+16t+32 Which statement best describes the term 32?
Sunday, April 12, 2015 at 3:25pm

Algebra 2 A
complete the square y^2+6y-3x+3=0
Sunday, April 12, 2015 at 3:18pm

Algebra 2 A
Franco is adjusting a satellite because he finds it is not focusing the incoming radio waves perfectly. The shape of his satellite can be modeled by mc024-1.jpg, where x and y are modeled in inches. He realizes that the static is a result of the feed antenna shifting slightly ...
Sunday, April 12, 2015 at 2:56pm

Algebra
For the function g(x) = 2x^2-3x determine the following expression/quantity. a. g(x+h) -g(x-h) / 2h = Using the results of Part A b. g(3.1)-g(2.9) / 0.1 =
Sunday, April 12, 2015 at 12:40pm

ALGEBRA
Find the solution of the equation. 1/2x^2 - x+5=0
Sunday, April 12, 2015 at 12:06pm

ALGEBRA
The function h=t^2 +95 models the path of a ball is in the air. assuming the boy lives at sea level where h=0 ft, which is a likely place the boy could have been standing when he threw this ball? a. his backyard b. an underground cave c. a ladder d. a bridge
Sunday, April 12, 2015 at 11:53am

Algebra
How do I solve for the square root of 15/x^3?
Sunday, April 12, 2015 at 8:46am

Algebra
A tennis player's swing moves along the path of an arc. If the radius of the arc's circle is 4 feet and the power and the angle of rotation is 100 degrees, what is the length of the arc?
Saturday, April 11, 2015 at 11:11pm

algebra
The examples in the slideshow, Division by Zero, which is located in the media section of Chapter 1, indicate that there is a different answer when 0 is divided by a number, rather than when a number is divided by 0.
Saturday, April 11, 2015 at 9:10pm

algebra
Factor: X^4 y-y^5
Saturday, April 11, 2015 at 3:48pm

algebra
Given: 2d-f/3 = f-3d/5, solve for f
Saturday, April 11, 2015 at 3:14pm

algebra
Find the ordered pair(s) that satisfies both f(x)=3/2x+1 and g(x)=-1/2x^2+2x+2.
Saturday, April 11, 2015 at 3:10pm

algebra
Solve: 2a-3/a+1 = 3a-5/a+3
Saturday, April 11, 2015 at 3:07pm

algebra
Given: 3(x-2y)+3x=y-2(x+4y), find the ratio of y to x
Saturday, April 11, 2015 at 3:05pm

algebra
Graph the relation. Find the domain and range. {(-1,1/2),(-1/2,-1),(3/2,0),(2,3/2)}
Saturday, April 11, 2015 at 11:47am

algebra
prove that cosbeta square+cosalfa square+cosgama square=1
Saturday, April 11, 2015 at 7:46am

algebra
if a over b = 2 over 3 find 3a + 6b over b-a
Saturday, April 11, 2015 at 4:03am

algebra
what inequality represents the sentence below? The product of a number and 5 is no more than 8.
Saturday, April 11, 2015 at 12:22am

algebra
Solve the inequality. Graph the solution. 2|x+1/3|<9
Friday, April 10, 2015 at 11:24pm

algebra
can you solve this? I need to check my work. 2(x-1)^2=50
Friday, April 10, 2015 at 10:53pm

algebra
find 3 consecutive integers such that the sum of the squares of the first and second is 2 more than the third
Friday, April 10, 2015 at 10:51pm

algebra
To which set of numbers does the number below belong? -14/11
Friday, April 10, 2015 at 10:41pm

algebra
Solve the inequality. Graph the solution set. 2r-9>-6
Friday, April 10, 2015 at 10:35pm

algebra
t/2 + t+3/3t = 1/t I got the lcd of 12t I stuck at the step of solving and i'm not getting t=-4
Friday, April 10, 2015 at 7:51pm

algebra--1 question
A catapult launches a boulder with an upward velocity of 184 feet per second. The height of the boulder, (h), in feet after t seconds is given by the function h(t) = –16t² + 184t +20. How long does it take the boulder to reach its maximum height? What is the boulder...
Friday, April 10, 2015 at 2:33pm

algebra 1
how do you find the area or geometric sequence of the explicit formula
Friday, April 10, 2015 at 2:23pm

Algebra
find the value of p so that p+5, 4p+3, and 8p-2 will from successive terms of an arithmetic sequence, then find the three successive terms.
Thursday, April 9, 2015 at 10:37pm

linear algebra urgent
Use the Gram-Schmidt process to transform the basis 1 1 1 , 0 1 1 , 2 4 3 for the Euclidean space R3 into an orthonormal basis for R3.
Thursday, April 9, 2015 at 9:26pm

Algebra
Rationalize the denominator The square root of: (12x^5y^2z^3)/9x^3y^3z
Thursday, April 9, 2015 at 8:44pm

Algebra
Write the following in simplified form the 4th root of the 3rd root of a^12 b^36 c^14
Thursday, April 9, 2015 at 8:42pm

Algebra probability
Helena has a set of number cards numbered 1 thru 10. If Helena randomly draws two cards from the deck, what is the probability that she will draw an odd number and then a two? The answer i had was 1/18, but its not on there, so i need help and im confused.
Thursday, April 9, 2015 at 8:02pm

algebra
How do I state which property of exponents justifies each step of this simplification?: 3^2x^6z^10/2^2y^18*x^4y^4z^4/5z^3*27z^6/​2^2x^2y^3 Im really stuck on this problem, I've managed to figure out the first 5 problems but this one is troubling me.
Thursday, April 9, 2015 at 5:12pm

algebra
In a school of 464 students, 89 are in band, 215 are in sports, of which 31 are involved in both activities. How many students are involved in neither activities?
Thursday, April 9, 2015 at 12:18pm

Algebra
6. One angle measures 54 more than 3 times another angle. The angles are supplementary. What are their measures? 11. A piece of string is 112 inches long. Isabel wants to cut it into 2 pieces so that one piece is three times as along as the other. How long is each piece?
Thursday, April 9, 2015 at 9:22am

Algebra: Quadratic Functions
The height of an acrobat who jumps from a trampoline 2 feet in the air is modeled by the function: y = -16x^2 + 16x + 12, where x is the time in the seconds after the acrobat jumps. 1: Find the maximum height of the acrobat. 2: Find how long it takes to reach that height. 3: ...
Wednesday, April 8, 2015 at 11:06pm

Algebra: Quadratic Functions
if a rocket is launched straight up into the air with an initial velocity of 112 feet per second, it's height after t seconds is given by the formula h = 112t - 16t, where x represents the height of the rocket in feet: A. When will the rocket reach it's maximum height ...
Wednesday, April 8, 2015 at 10:54pm

Algebra 1
Identify the initial amount a and the decay factor b in each exponential function. 1.) y= 0.1* 0.9^x
Wednesday, April 8, 2015 at 10:47pm

mah
Let A = {a, b} and list the four elements of the power set P (A). We consider the operations + to be ∪, · to be ∩, and complement to be set complement. Consider 1 to be A and 0 to be ∅. a. Explain why the description above defines a Boolean algebra. b...
Wednesday, April 8, 2015 at 10:45pm

algebra
You are making a fence for your garden. The length is five less that two times the width. A.write a polynomial that represents the perimeter of the garden. B.write a polynomial that represents the area of the garden. C. Find the perimeter and area of the garden when the width ...
Wednesday, April 8, 2015 at 10:23pm

Algebra
What is the equation of the line that passes through (-6,-2) and is parallel it the line with the equation x=4
Wednesday, April 8, 2015 at 4:54pm

Algebra
How many musicians are there in an orchestra if 24 violinists represent 15% of all musicians?
Wednesday, April 8, 2015 at 4:53pm

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Homework Help: Math

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