# Homework Help: Math: Algebra

## Recent Homework Questions About Algebra

Algebra Help
determine the max number of real zeros that p(x)=-6x^6+7x^5-4x^4+3x^2+9x-47 has

Algebra
(-5a^2 / b^3)^-1. For a = -4. B= 2 I know you plug in the numbers for a and b but don't know what to do after this is my first time trying a problem like this .

Algebra
5/square root 20 - 2 square root 45 Help please I have no clue how to do this ok studying for a test 3/y+2 + 2/y = 5y-4/y^2-4 I know you factor then multiply by LCD y(y-2)(y+2) I get stuck right after that step and don't know what to do .

algebra 1
A chemist has one solution containing 30% insecticide and another solution containing 50% insecticide. How much of each solution should the chemist mix to get 200 L of a 42% insecticide? My teacher explained how to set up the problem: 3x+5y=84 x+y=200 what I don't get is why ...

algebra
how do you write the simplest polynomial function with the given zeros

I can't figure this out, please help... A company invests \$15,000.00 in an account that compounds interest annually. After two years, the account is worth \$16,099.44. Use the function in which r is the annual interest rate, P is the principal, and A is the amount of money ...

Algebra B
I can't figure this out, please help... A company invests \$15,000.00 in an account that compounds interest annually. After two years, the account is worth \$16,099.44. Use the function in which r is the annual interest rate, P is the principal, and A is the amount of money ...

college algebra
Find a12 when a1 = 5 and r = – 2.

algebra
how do you write simples polynomial function with the given zero 1-i and 2

3(4 - 2x) - -2x SHow how you did it?

Algebra 1
The population of a city increases by 4,000 people each year. In 2025 the population is projected to be 450,000 people,. What is the equation that gives the city's population p ( in thousands of people) x years after 2010?

Algebra 1
What equation represents the line that passes through the points (6,-3)and (-4,-9)?

Algebra 1
Which point is located on the line represented by the equation y + 4 = -5(x-3)?

Algebra
A total of \$7000 is invested in three accounts. Some was invested at 6%, some at 8%, and the rest at 9%. find the amount invested at each rate if the total interest for one year was \$555 and the amount invested at 8% was three times the amount invested at 9%. (assume simple ...

algebra
For each of the rational functions find: a. domain b. holes c. vertical asymptotes d. horizontal asymptotes e. oblique asymptotes f. y-intercept g. x-intercepts 1. f(x)= x^2+x-2 / x^2-x-6

Coll Algebra
A grain barge travels on a river from point a to point b unloading and loading again. The barge travels 5mph relative to water. the river flows downstream at a rate of 1mph. if the trip upstream takes 2hrs longer than the trip downstream how far is it from point a to point b

Algebra 1
What is an equation in slope-intercept form for the line that passes through the point (1,-3) and (3,1)

Algebra 1
For the equation -4y =8x, what is the constant of variation?

Algebra
Studying Microgravity. NASA'S Glen Research Center in Cleveland, Ohio, has a 435-foot drop tower that begins on the surface and descends into Earth like a mineshaft. How long will it take a sealed container to fall 435 feet? Round to the nearest tenth of a second.

Algebra 1
Suppose y varies directly with x and y = 24 when x =8. What is the value of y when x = 10?

algebra
Identify the vertices of the solution region of the system of linear inequalities. (Order your answers from smallest to largest x, then from smallest to largest y.) x ≥ −2 x ≤ 3 y ≤ 5 y ≥ x (x, y) = (x, y) = (x, y) = (x, y) = Tried several times, ...

algebra
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled \$123.62. The basketball FCI was \$\$6.98 more than that of tennis. ...

Algebra 1
What is an equation in slope-intercept form for the line that passes through the points (1,-3(), (3,1)?

Algebra 1
What is an equation for the line with slope 2/3 and y intercept 9?

Algebra 1
Suppose y varies directly with x and y = 24 when x =8. What is the value of y when x = 10?

Algebra 1
For the equation -4y =8x, what is the constant of variation?

Algebra 1
What is the slope of the line that runs through points (1,1), (0,3)?

College Algebra
A total of \$14,000 is invested in 3 accounts earning 3%, 4%, and 5% annual interest. The combined interest for one year is \$539. If the amount invested at 5% is three times the amount at 4%, find the amount invested at 3%.

Algebra 1
the point 12,9 is included in a direct variation. what is the constant of variation

pre-algebra
The length of a kitchen is 1 1/4 inches. The actual length is 20 feet. What is the scale of the kitchen

algebra
how to you solve polynomial equation by factoring x^3 + 3x^2 - 9x = 27

Algebra 1
suppose y varies directly with x and y = 14 when x = -4 what is the value of y when x = -6

algebra
solve polynomial equation by factoring x^4 +100 = 29x^2

Algebra 1
The ordered pairs 1,4 - 2,16 - 3,64 - 4,256 - 5, 1024 represents a function. What rule represents this function. 1- 4 x power 2- 4x 3- xto the 4th power 4- x+4 my answer is 4x

algebra
solve polynomial equation by factoring 2x^3 - 12x^2 = 32x - 192

Algebra
I am n. I am twice r less 10.

Algebra 1
The graph shows the number of handbags that Mandy made in one day. What are the variables? Describe how the variables are related at various points on the graph

Algebra 1
I've been so stuck on this one question :( can somebody help mee please it would be very much appreciated The graph shows the number

algebra
The length of a rectangle is four times its width. If the area of the rectangle is 392 yd, find the perimeter

algebra
If a building contractor hires 5 day laborers and 2 concrete finishers, his payroll for the day is \$1200. If he hires i day laborer and 4 concrete finishers, his daily cost is \$924. Find the daily wage for each type of worker.

algebra
what is the error in finding the sum? 3/10 + (-1/10) = 3+1/10 = 4/10 = 2/5 what is the correction?

algebra
how do you solve polynomial equation by factoring 3x^4 + 11x^3 = 4x^2

algebra
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled \$123.62. The basketball FCI was \$\$6.98 more than that of tennis. ...

Algebra
The fuel efficiency for a certain midsize car is given by E(v) = −0.017v^ + 1.462v + 3.5 where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the nearest mile per hour. ...

algebra
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled \$123.62. The basketball FCI was \$\$6.98 more than that of tennis. ...

math
what is the answer to the famous farming exression, from creative publications pre-algebra with pizzaz

Math Pre-Algebra
Find the quotient -16/0?

coordinate algebra
The area of a rectangle is found by multiplying the length by the width: A = lw. A certain rectangle has an area of x2 + 7x + 12. Factor the trinomial to find the length and width of the rectangle. In the form of a paragraph, describe the process necessary to factor the area ...

algebra
a rectangle has a perimeter of 30 inches.Its length is one less than three times its width. what are the length and widths of the rectangle

Algebra

algebra
a grocery store has 116 bags of marshmallows. over 6 months, it sells 8 bags of marshmallows per month. how many marshmallows are in inventory at the end of 6 months?

algebra
The perimeter of a triangle is 57in. The longest side is 13in. longer than the medium side, and the medium side is 7 in. more than the shortest side. find the length of each side of the triangle. The length of the longest side is ___in, the length of the medium side is __in. ...

algebra
Find the doubling time of an investment earning 7% interest if interest is compounded continuously is ____years. Round to the nearest tenth of a year.

algebra
``If 18g of a radioactive substance are present initially and 5 yr later only 9 g remain, how much of the substance will be present after 11yr ? after 11yr there will be ___g of a radioactive substance. round the final answer to the nearest thousandth as needed. round all ...

Algebra
Find the real zeros of f. (Enter your answers as a comma-separated list.) f(x) = −x2 + 7x + 8x X =_____ Find the x-intercepts of the graph of f. (x, y) =_______(smaller x-value) (x, y) =_______(larger x-value)

algebra
using long division (x^6 - 4x^5 -7x^3) / (2x^3)

Algebra
A medical researcher wanted to determine the effect of pH (a measure of alkalinity or acidity, with pure water having a pH of 7) on the growth of a bacteria culture. The table below gives the measurements of different cultures, in thousands of bacteria, after 8 hours. pH ...

Algebra
The fuel efficiency for a certain midsize car is given by E(v) = −0.017v^ + 1.462v + 3.5 where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the nearest mile per hour. ...

algebra
Solve for x. (Round your answer to three decimal places.) log7 x = 1/2 x=

college algebra
Find the Inverse (x)=√2x+9

Algebra 1
use the vertical line test to determine if the relation(-6,-2), (-2,6),(0,3),(3,5) is a function

Algebra 1
What is the graph of the function rule? y=I5xI -2

Algebra 2
Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 I'm having trouble solving this problem.

pretty algebra
A commuter train pulling 8 cars had room for another 84 passengers. Halfway...

Algebra
A recipe for a home-made disinfectant calls for adding one-half cup of clorox to one gallon of water. Mrs. Jenkins wants to make this solution in a 32-ounce spray bottle. How many fluid ounces of clorox should be added to 32 fluid ounces of water to have the same clorox-to-...

Algebra 1
The ordered pairs(1,4), (2,16), (3,64), (4,256),(5,1024) represent a function. What is a rule that represents,this function? My answer is y=x to the 4th power

Algebra 1
The table shows the relationship between the number of players on a team and the minutes each player gets to play. Players minutes 7 35 8 30 9 25 10 20 Is the relationship a function that ism increasing or decreasing? Is the relationship a function that is linear or nonlinear...

Algebra 1
Write an equation that relates the number of parallelograms in the figure (n), to the perimeter of the figure (P). /_/ /_/_/ /_/_/_/ The top and bottom = 5 each and the sides = 4 each in each figure.

Algebra 2
Solving Quadratic Systems x^2+y^2=20 x^2-6y=28 PLEASE SHOW WORK I'M HAVING TROUBLE SOLVING IT

Algebra 2
Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 Please show work I'm having trouble solving it

algebra 2
x^2-18x-40=0

algebra 2
Solve for x. 250= (13+x)^2

algebra
Develop a tree diagram for tossing two, eight-sided gaming dice to figure out how many possibilities there are. Discuss the purpose of using such a visual in working out probability.

Algebra
A woman wishes to invest \$12,500 in three types of bonds: municipal bonds paying 8% interest per year, bank investment certificates paying 9%, and high-risk bonds paying 12%. For tax reasons she wants the amount invested in municipal bonds to be at least three times the amount...

Algebra
A confectioner sells two types of nut mixtures. The standard-mixture package contains 100 g of cashews and 200 g of peanuts and sells for \$1.85. The deluxe-mixture package contains 150 g of cashews and 50 g of peanuts and sells for \$2.45. The confectioner has 15 kg of cashews ...

algebra
You must submit your response as a file. An object’s weight depends on its height above the surface of the earth. If a man weighs 190 pounds on the surface of the earth, then the man's weight in pounds (W) x miles above the surface is approximated by the formula: W = (190&#...

Algebra word problem
Mary is two years older than Robert. The sum of their ages is 28. Write an expression for each person, write the equation for the situation and find out how old each person is.

Algebra
(7.8*10 to the 12th power)*800=(7.8*10 to the 10th power)*80,000 Directions:tell whether each equation is true or false. if false, write the inequality in like terms I don't remember how to start multiplying.

Algebra
What is the probability of obtaining tails and a sis?

Algebra
Math The Monahans have 21 meters of fencing with which to enclose a garden. If they plan to make the garden twice as long as it is wide, what is its maximum width?

algebra 2
Solve for the unknown. 1.) √y+√y+7=7 2.) √x+11=√x +1

algebra
A traveler required a total of 12 h on the round trip, averaging 20mi/h and 30 mi/h. Find a time in hours going using a T for this.

Algebra B
What is the coefficient of x in the division (18x3 + 12x2 – 3x) ÷ 6x2 ? 3 2 –0.5 –3 I am helping my granddaughter and I need help to explain...

Algebra 2
Solving Quadratic Systems 2x^2+5y^2=53 4x+y^2=17 Please show work I'm having trouble solving it.

Algebra 2
Solving Quadratic Systems 16x^2-9y^2=144 y=9-x^2 Please show work I'm having trouble solving it.

algebra
A sausage sample was found to contain 65% moisture, based on fresh weight. The sausage was dried in an oven until its moisture content was 10% . A 2.0 g portion of the dried sausage was extracted with the Soxhlet method to determine the amount of crude fat. A clean Soxhlet ...

ALGEBRA 2
In triangle ABC , angle C is a right angle. Find the remaining sides and angles. Round your answers to the nearest tenth. Show your work

pre-algebra
Which of the following does NOT represent a domain? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A) The total number of oranges Andre has from buying bags of oranges at the store B) The number of minutes that have passed while reading pages from a book C) How many sandwiches are made ...

College Algebra
A new employee at a sales company is offered one of three different possible salary packages, A, B and C. The new employee will work 15 hours per week. Package A: \$105 for the 15 hours of work each week. Package B: \$60 plus a commission of 8% of all sales during the week. ...

Algebra
Sarah has two part-time jobs and needs to earn at least \$300 total per week. Job A pays her \$10 an hour and job B pays \$7.50 an hour. Wite an equality that represents this scenario.

algebra
A fuel storage tank has one supply pump and two identical outlet pumps. With one outlet pump running, the supply pump can increase the fuel level in the storage tank by 8450 gallons in 30 minutes. With both outlet pumps running, the supply pump can increase the fuel level in ...

algebra
A motorboat traveling a distance of 225 miles in 5 hours while traveling with the current. Against the current, the same trip took 9 hours. Find the rate of the boat in calm water and the rate of the current. rate of boat___ mph rate of current___ mph

algebra
A marketing company asked 100 people whether they liked a new skin cream and lip balm. The company found that 80% of the people who liked the new skin cream also liked the new lip balm, and that 50% of the people who did not like the new skin cream liked the new lip balm. If ...

algebra
A goldsmith has two gold alloys. The first alloy is 30% gold; the second alloy is 80% gold. How many grams of each should be mixed to produce 10 grams of an alloy that is 40% gold? amount of 30% gold ___ g amount of 80% gold ___ g

Algebra 2 honor
a souvenir shop sells about 300 coffee mugs per month for \$7.50 each. the shop owner estimates that for each \$0.75 increase in the price, he will sell about 15 fewer coffee mugs per month. a. how much should the owner change for each mug in order to maximize the monthly income...

algebra 2
16x^2=56x

algebra
Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.

Algebra
Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?

Algebra
Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of \$3.60. How many coins of each kind does he have?

Algebra
Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of \$3.60. How many coins of each kind does he have?

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