Saturday
August 27, 2016

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

Algebra 1--Please, help me!
Multiply. Simplify your answer. 1. n + 3/n- 5 x (n^2 - 5n) A: n^2 + 3n 2. 6xy^2/2x^2y^6 x 6x^4y^4/9x^3 A: 2 3. 3h^3 - 6h/10g^2 x 4g/g^2 - 2g A: ? 4. m^2 + m - 2/m^2 - 2m - 8 x m^2 -8 + 16/3m -3 A: m-4/3
Friday, May 30, 2014 by Victoria

algebra
Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
Thursday, May 29, 2014 by Mary Ann

Algebra
1. 6e^-x=3 2. 32(1.5)^x=640 3.5000/(1.05)^x=250 4.50(3-e^2x)=125
Thursday, May 29, 2014 by Anonymous

algebra
Julia can finish 20 mile bike ride in 1.2 hrs. Katie can finish the same bike ride in 1.6 hrs. How much faster. Does Julia ride then katie
Thursday, May 29, 2014 by Anonymous

algebra
Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
Thursday, May 29, 2014 by Mary Ann

algebra
Solve the equations by finding the exact solution. a 3= x -3 what is x b In e = In like a check mark 7 with a 6 under the 7 -3 In e x is what Thank you very much for your time
Thursday, May 29, 2014 by Mary Ann

Algebra 2
a farmer has 400 meters of fence with which to enclose a portion of land. the farmer wants to enclose a rect angular piece of ground that is as large as possible. the land is bordered by water on two sides. There are three options for the farmer Option 1) have two sides ...
Thursday, May 29, 2014 by Kenxgaga

Algebra 2
The commitee is planning this years prom. 500 on music 800 on the decorations 900 on the ballroom 25 per person for catering The ballroom can only hold 300 students. 35 per ticket with food. 20 per ticket without food. Must set aside 10 free pron tickets. a) create a function ...
Thursday, May 29, 2014 by Kenxgaga

algebra
What is the expectation for the $1 bets on a U.S. roulette wheel? If the bet is a three number bet. Round to the nearest cent. Thank you
Thursday, May 29, 2014 by Mary Ann

college algebra
The sum of three consecutive natural numbers is 651, find the numbers. 3*7*31 21*31=651 is what I put for my answer but that was incorrect on the homework. Please help me Another Question I had problems with was :Your weekly paycheck is 25 percent less than your coworker's...
Thursday, May 29, 2014 by Anonymous

Algebra
Which represents the reference angle for 3pi/4? A) (3 pi)/4 B) pi/3 C) pi/4 D) pi/6 I have no clue on how to do this. (Looking at my unit circle I think A?)
Thursday, May 29, 2014 by Jake

college algebra
Two cyclists, 64 miles apart, start riding toward each other at the same time. One cycles 3 times as fast as the other. If they meet 2 hours later, what is the speed (in mi/h) of the faster cyclist? Let "x" be the slower rate the faster rate is "3x" x+3=2x ...
Thursday, May 29, 2014 by Anonymous

college algebra
One positive number is one-fifth of another number. The difference between the two numbers is 200, find the numbers. Im not sure how to approach this problem x-1/5 = x+200 ? I also keep wanting to divided 200/5 .. Please help Im all over the place not sure what to do
Thursday, May 29, 2014 by Anonymous

college algebra
Phyllis invested 55000 dollars, a portion earning a simple interest rate of 4 percent per year and the rest earning a rate of 7 percent per year. After one year the total interest earned on these investments was 2830 dollars. How much money did she invest at each rate? 2380-x...
Thursday, May 29, 2014 by Anonymous

Algebra 2
a farmer has 400 meters of fence with which to enclose a portion of land. the farmer wants to enclose a rectangular piece of ground that is as large as possible. the land is bordered by water on two sides. There are three options for the farmer Option 1) have two sides ...
Thursday, May 29, 2014 by Jim

Algebra
What is the period of the function? y = 2 cos pi x I said 2.
Thursday, May 29, 2014 by Jake

Algebra, math
a plan can fly 1200 miles with the wind in 3 hours, while it takes the same plan 4 hours to fly the same distance against the wind. Find the speed of the plan in still air, and the speed of the wind.
Thursday, May 29, 2014 by Mashael

College Algebra
Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours, and on the trip back averaged 50 mi/h. She returned home 41 hours after leaving. How many miles is City A from City B Distance = Speed * Time D= 35...
Thursday, May 29, 2014 by Anonymous

algebra
Need some one check my homework. Evaluate 3p/q when p=2 and q=6. Answer:1 Use < > or = for __ to write a true sentence: 0.001 __ 0.0010 Answer:< Question 3 Evaluate -3/8 - 5/8. Answer:7 Question 4 Evaluate: 84 + (-99) + 44 - (-18) - 43 = Answer:4 Question 5 Multiply...
Thursday, May 29, 2014 by Lisa

Algebra
Quadratic formula x^2+6x+8-0 (solve by factoring) (second Problem) 5w^2-3=0 Please show steps
Thursday, May 29, 2014 by tbell

algebra
2x-x^3>=0 solve for x
Wednesday, May 28, 2014 by Anonymous

College Algebra
x/(2x-4)-7=1/(x-2).. How I clear this denominator if I must clear it at all.. Im not sure how to approach these problems.I have several others similar to this 1/2y+ 4= 1/7y I changed the denominators to 14y, then got 7/14y+ 4= 2/7y but my online homework says that is incorrect...
Wednesday, May 28, 2014 by Anonymous

College Algebra
7/(x+1) - 3/2 =6/(3x+3) Im not sure how to begin, I thought abou clearing the denominators by multiply everything by (x+1)(2)(3x+3) but that didnt work out.
Wednesday, May 28, 2014 by Anonymous

College Algebra
2/9+-5/6= -8 -(-3/7 k) The answer I got found was 82k=-903 I then divided that by 82 and found k=-11.0121. Which was incorrect, please help me.
Wednesday, May 28, 2014 by Anonymous

algebra
A store sells mixtures of almonds and cashews for $6.50 per pound. Peanuts sell for $2.95 per pound and cashews sell for $7.95. How many pounds of each should be used to make 80 pounds of this mixture?
Wednesday, May 28, 2014 by nick

College Algebra
Let Z be equal to (2-5i) The question is z^2 +iz -(5+i) The answer I got for this was -22 + 18i but it isn't correct on my homework page please help/
Wednesday, May 28, 2014 by Anonymous

College Algebra
Write the following in a+bi form (-5-i)/(3-3i) -5/3 and 1/3i (-5/2i)/(-1/5i) 23 and 0i (-2i)^3 -2 and 0 Im having trouble with these probems and here is my answers. PLEASE HELP
Wednesday, May 28, 2014 by Anonymous

College Algebra
Write the following a+bi form i(3.14-3i) Please help. I believe that the answer is 3.14i-3i, which would be (3.13*-1)-3*-1. however this was incorrect please tell me where I went wrong
Wednesday, May 28, 2014 by Anonymous

algebra
5/(X+7) = 3/(X+3); X IS NOT EQUAL TO -7 OR -3
Wednesday, May 28, 2014 by JOHN DUNN

algebra
-2/3<-1 true or false
Wednesday, May 28, 2014 by Lisa

Math Algebra
Please help. I do not know how to do this. Solve: 2/3x + 4/x = 7/x+1
Wednesday, May 28, 2014 by S8

Algebra
A bought some carrots and apples for $24.80. A carrot and an apple $0.90 altogether. She bought more carrots than apples. The cost of the extra number of carrots was $6.80. How many apples did A buy?
Wednesday, May 28, 2014 by Test

Algebra
I need help with some Algebra! Can someone help?
Wednesday, May 28, 2014 by Sandy East Ward

algebra
multiply (-1)9= evaluate 84+(-99) +44-(-18)-43 Use < or> for ____ to write a true sentence. 0.001____ 0.0010
Wednesday, May 28, 2014 by Lisa

algebra
Find the Absolute Value of the following numbers; 12. {8} 13. {-9} 14. {-2/3} 15. {5.6}
Wednesday, May 28, 2014 by Deborah

algebra/please help I have been wrong twice
An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will be $395,000. If only natural gas is hit, the income will be $125,000. If nothing is hit, there will be no income. If the probability of hitting oil ...
Wednesday, May 28, 2014 by Mary Ann

algebra
1) The maintenance crew is doing some work on the arch. The work will be done on the right side of the arch. In order to bring the equipment up the maintenance crew has constructed a temporary ramp from the ground on left side of the arch to the level where the work will be ...
Wednesday, May 28, 2014 by reneet

Algebra/can you ck my answer
Last semester a certain professor gave 24 A's out of 237 grades. What is the probability that student received an A. round two decimal. I came up with 24/237 = .010 thank you
Wednesday, May 28, 2014 by Mary Ann

algebra
1) The maintenance crew is doing some work on the arch. The work will be done on the right side of the arch. In order to bring the equipment up the maintenance crew has constructed a temporary ramp from the ground on left side of the arch to the level where the work will be ...
Wednesday, May 28, 2014 by reneet

Algebra 1
While playing a game, Rachel pulls two tiles out of a bag without looking and without replacing the first tile. The bag has two colors of tiles--black and white. There are 10 more white tiles than black tiles. a. Write and simplify an expression that represents the probability...
Wednesday, May 28, 2014 by Serena

Algebra
A club with 33 members is to select five officers president, vice president, sec, treasurer and historian. In how many way can the this be done. I am not sure if I ask this before, thank you
Wednesday, May 28, 2014 by Mary Ann

Algebra
Using a standard 52-card deck, whats the probability of being dealt a pair of aces in a 5-card hand?
Wednesday, May 28, 2014 by Lily

algebra/geometry
How do you do the diamond or the t-chart to find the possible values of x... x^2 -3x-28 ??? I don't remember how to....
Tuesday, May 27, 2014 by vanessa amador

algebra
Suppose that in a particular game two dice are tossed, and various amounts are paid according to the outcome. Find the requested probability. (Enter the probability as a fraction.) If a seven or an eight occurs on the first roll, the player wins. What is the probability of ...
Tuesday, May 27, 2014 by Mary Ann

algebra
Choose a natural number between 1 and 100, inclusive. What is the probability that the number chosen is not a multiple of 5? (Enter the probability as a fraction.) Thank you it is appreciated.
Tuesday, May 27, 2014 by Mary Ann

ALGEBRA! URGENT. Check Answers!
1. 18x^2 + 6 + 4x - 15x^2 - 4 + 13x Answer: 3x^2 + 17x + 2 2. 3x^2 + 6 - 2x + 5x - 4x^2 + 9 Answer: -x^2 + 3x + 15 3. 3x^2 + 5x - 7x + 3 - 5x^2 + 2 Answer: -2x^2 + 2x + 5 4. In the expression -7x - 3x^2 + 5. What is the coefficient of x? Answer: I think it's 7 or -7 Thanks!
Tuesday, May 27, 2014 by Claire

algebra
Find the requested probability. P(A) if P(A) = 0.6. the first A has a line over it. than the P (A) line over it Thank you for you time it is appreciated on this end believe me
Tuesday, May 27, 2014 by Mary Ann

algebra/Can you see if I am right
A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|king) 4/52 Thank you
Tuesday, May 27, 2014 by Mary Ann

Algebra 1--Please, help me! (Steve)
Mulitiply. Simplify your answer. 1. 3r^2t/6st^3 x 2r^2s^3t^2/8r^4s^2 Add or subtract. Simplify your answer. 2. x^2 + x/x^2 + 3x + 2 + 3/x + 2 3. The Escobar family went on a car trip. They drove 100 miles on country roads and 240 miles on the highway. They drove 50% faster on ...
Tuesday, May 27, 2014 by Victoria

algebra/check my answer
Three fair coins are tossed. What is the probability that at least one is a head? (Enter the probability as a fraction.) I came up with 7/8 Thank you
Tuesday, May 27, 2014 by Mary Ann

algebra
Suppose that the odds in favor are 12 to 1 that a man will be bald by the time he is 60. State this as a probability. (Enter the probability as a fraction.) P(a man is bald by 60) Thank you
Tuesday, May 27, 2014 by Mary Ann

algebra
given the function rule f(x)=x^2-4x+3, what is the output of f(-3)
Tuesday, May 27, 2014 by anonymous

Algebra 1--Please, help me!
Mulitiply. Simplify your answer. 1. 3r^2t/6st^3 x 2r^2s^3t^2/8r^4s^2
Tuesday, May 27, 2014 by Victoria

Pre ALgebra
If a pizza with a diameter of 12 inches costs $10.99, based on area, about how much should a 15-inch pizza cost? (Hint: Be sure to use the area of the pizza in your proportion, not the diameter.)
Tuesday, May 27, 2014 by Kathlyn

Algebra 1
While playing a game, Rachel pulls two tiles out of a bag without looking and without replacing the first tile. The bag has two colors of tiles--black and white. There are 10 more white tiles than black tiles. a. Write and simplify an expression that represents the probability...
Tuesday, May 27, 2014 by Victoria

Algebra 1
Divide. Simplify your answer. 1. 3a^4b/2a^2c^3 ÷ 12a^2c/8c^4 A: ? 2. x^2 + 4x - 5/3x - 3 ÷ (xC^2 - 25) A: ?
Tuesday, May 27, 2014 by Victoria

Algebra 1--Please, help me!
Find any excluded values of each rational expression. 1. t - 1/ t^2 - t A: Excluded value: 1. Simplify each rational expression, if possible. Identify any excluded values. 2. 3x^2/6x^3 A: 2x; x ≠ 2 3. 2n/n^2 - 3n A: ? 4. s + 1/s^2 - 4s - 5 A: ? 5. 12 - 3x/x^2 - 8x + 16 A...
Tuesday, May 27, 2014 by Victoria

algebra
Find all roots of the equation z^5 = i, i.e. find the five values of i^1/5 and show them on an Argand diagram.
Tuesday, May 27, 2014 by Carrolyn

algebra 2 and Trigeonomerty
a bag contains 12blue, 10 green and 6 red and 2 white marbles. a) If you draw 3 marbles without putting them back, what is the probability that all 3 are blue? 12/30 * 9/27 =0.133? b) If you draw 2 marbles without putting them back, what is the probability that neither is blue...
Tuesday, May 27, 2014 by heather

Algebra Last question for tonight
An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will be $395,000. If only natural gas is hit, the income will be $125,000. If nothing is hit, there will be no income. If the probability of hitting oil ...
Tuesday, May 27, 2014 by Mary Ann

Algebra 1--How Am I Supposed to Solve This?!
Suppose a cone and a cylinder have the same radius and that the slant height l of the cone is the same as the height h of the cylinder. Find the ratio of the cone's surface area to the cylinder's surface area. Area of cone: S = πrl + πr^2 Area of cylinder: S...
Tuesday, May 27, 2014 by Victoria

Algebra 1--how am I suppose to graph this?!
Jeff builds model train layouts. He has $75 to spend on packages of miniature landscape items. He receives 6 free packages with each other. The number of packages that Jeff can buy is given by y = 75/x + 6, where x represents the cost of each package in dollars. Describe the ...
Tuesday, May 27, 2014 by Victoria

Algebra, Need help with last part.Thank you
A single card is selected from an ordinary deck of cards. The sample space is shown in the figure below. Find the probabilities. (Enter the probabilities as fractions.) P (two of hearts0 I got 1/52 correct P ( two)I got 4/52 correct P (heart)I am not sure.
Monday, May 26, 2014 by Mary Ann

algebra 1
if y varies inversely with x' find the constant of variation and write an equation if y=1/2 and x=-10
Monday, May 26, 2014 by Jennifer

algebra/Did I do this right
A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|king) I came up with 12/52 Thank you
Monday, May 26, 2014 by Mary Ann

Algebra
What is the probability of getting a license plate that has a repeated letter or digit if you live in a state in which license plates have one numeral followed by three letters followed by three numerals? (Round your answer to one decimal place.)
Monday, May 26, 2014 by Mary Ann

algebra
Consider the following four polynomials, labeled A - D: A. ( 2x2 - 4x ) B. ( x3 - 1 ) C. ( -3x3 + x2 - 4x ) D. ( x5 + x2 - 3 ) Find an algebraic expression that uses each of the four polynomials once and simplifies to: x8 + 3 Your expression may involve any combination of ...
Monday, May 26, 2014 by Lilly

algebra
the gateway arch is the tallest man-made monument found in the united states in St. Louis missouri. The gateway arch can be closely approximated by a parabola, is 630 feet high and 630 feet across at the base. 1) the maintenance crew is doing ht side of the arch, In ordersome...
Monday, May 26, 2014 by reneet

intermed Algebra
I need help solving this , If the formula R= -0.037t + 50.1 can be used to predict the world record in the 400 meter dash t years after 1925, for what years will the world records be 48.8 seconds or less. I am clueless what to do been on this for an hour.
Monday, May 26, 2014 by marcelino

Algebra
Find the coordinates of the image after a reflection in the given line. [-8, 1, -7] [-7, -5, 1]; y axis I am really bad with these types (matrices) of questions, please help me.
Monday, May 26, 2014 by Sarah

Algebra
In this activity, you will design and conduct a survey. Select a topic for your survey. d. Are the people you surveyed representative of the group you want to study? What does D mean?
Monday, May 26, 2014 by Anonymous

Algebra
What is the expectation for the $1 bets on a U.S. roulette wheel? See the figure. (Round your answer to the nearest cent.) Three-number bet Thank you
Monday, May 26, 2014 by Mary Ann

Algebra/Probability
Suppose that you toss a coin and roll a die. What is the probability of obtaining tails or a six? (Enter the probability as a fraction.) I came up with 1/6 which does not sound right thank you for you time on this Holiday
Monday, May 26, 2014 by Mary Ann

algebra
A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|queen) Thank you
Monday, May 26, 2014 by Mary Ann

algebra
Suppose that state’s record high temperature of 102 was set in 1930, and the record low of -14 was set in 1966. What is the range of these temperature extremes?
Monday, May 26, 2014 by TERRY

Algebra 1--Please, help me!
1. Jeffs builds model train layouts. He has $75 to spend on packages of miniature landscape items. He recieves 6 free packages with each order. The number of packages y that Jeff can buy is given by y = 75/x + 6, where x represents the cost of each package in dollars. Describe...
Monday, May 26, 2014 by Victoria

algebra
Complete the table of solutions 7x-2y =-21 X Y (X,Y) 3 ---- (---- , ----) --- 0 (---,---)
Monday, May 26, 2014 by TERRY

Algebra 1--Please, help me!
1. 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? A: ? 2. Jeffs builds model train layouts. He has $75 to ...
Monday, May 26, 2014 by Victoria

algebra
Expand. 2(x+10) It looks easy but what do they mean by expand?
Monday, May 26, 2014 by raki101

algebra
A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king.
Monday, May 26, 2014 by bri

Algebra II
Part 1: Using complete sentences, compare the key features and graphs of sine and cosine. What are their similarities and differences? Answer: The sine graph will always pass through (0, 0), While the cosine graph wouldn't. If the graph is 2cosx, it will pass through (0, 2...
Sunday, May 25, 2014 by Man

algebra
2 (x + 10)
Sunday, May 25, 2014 by Raphael

algebra
Solve the problem.A taxi company charges riders a fixed charge of $2.30 plus $1.20 per mile. How many miles must a rider go to have an average cost per mile of $1.30?
Sunday, May 25, 2014 by cyntha

Algebra 2
Which cosine function has maximum of 4, a minimum of -4, and a period of 2pi/3? A. y=4 cos 3 theta B. y= 4 cos 2 theta/3 C. y=4 cos theta/3 D. y=4 cos 3 theta
Sunday, May 25, 2014 by Caleb

ALGEBRA
How many inches of molding are needed to produce the square picture frame 13" 1/8
Sunday, May 25, 2014 by TERRY

ALGEBRA
Complete the table of solutions 7x-2y =-21 X Y (X,Y) 3 ---- (---- , ----) ----- 0 (---,---)
Sunday, May 25, 2014 by TERRY

Algebra 2
Simplify the trigonometric expression. sin^2 theta / 1-cos theta A. 1+cos theta B. sin theta C. 1-sin theta / cos theta D. 1+sin theta / cos theta
Sunday, May 25, 2014 by Caleb

ALGEBRA
Suppose that state’s record high temperature of 102 was set in 1930, and the record low -14 of was set in 1966. What is the range of these temperature extremes?
Sunday, May 25, 2014 by TERRY

ALGEBRA
In the table of solutions, which entry is the y-intercept of the graph and which entry is the x-intercept of the graph? x y (x, y) 4 0 (4, 0) 0 2 (0,2) –4 –4 (–4, –4)
Sunday, May 25, 2014 by TERRY

ALGEBRA
A student inherited $4,200 and deposits x dollars in American Savings. Write an expression to show how much she has left to deposit in a City Mutual account.
Sunday, May 25, 2014 by TERRY

algebra/can you see if I am on the right track
A state's license plates consist of four letters followed by three numerals, and 246 letter arrangements are not allowed. How many plates can the state issue? 26^26^26^26=456976-246 answer 456,730 thank you
Sunday, May 25, 2014 by Mary Ann

algebra
Last semester, a certain professor gave 24 As out of 237 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.) thank you for giving up your ...
Saturday, May 24, 2014 by Mary Ann

Algebra
An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will be $415,000. If only natural gas is hit, the income will be $145,000. If nothing is hit, there will be no income. If the probability of hitting oil ...
Saturday, May 24, 2014 by Mary Ann

algebra
Find the requested probability. P(A) if P(A) = 0.7 Thank you and have a great Holiday weekend
Saturday, May 24, 2014 by Mary Ann

Algebra 2
What is the theoretical probability of rolling a sum of 6 on one roll of two standard number cubes? A. 1/9 B. 5/36 C. 1/12 D. 1/6
Saturday, May 24, 2014 by Caleb

Algebra
Hank and Rashad are walking the Appalachian Trail from Maine southward through Maryland for a distance of 1164 miles. They have walked three times as many miles as they have remaining. How many miles are there remaining for them to walk?
Saturday, May 24, 2014 by Tat

Algebra 2
Write an equation for the translation of y=5/x that has the asymptotes x=6 and y=7.
Saturday, May 24, 2014 by Caleb

algebra
Use a calculator to evaluate an ordinary annuity formula A = m 1 + r n nt − 1 r n for m, r, and t (respectively). Assume monthly payments. (Round your answer to the nearest cent.) $150; 5%; 40 yr
Saturday, May 24, 2014 by strayer

Algebra 2
What is the 20th term of the sequence that begins -2,4,-8,16.....?
Saturday, May 24, 2014 by Caleb

Algebra 1
Simplify the following rational expression: 25 - x^2/x^2 -3x - 10
Saturday, May 24, 2014 by Anonymous

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Homework Help: Math