Friday

August 29, 2014

August 29, 2014

Total # Posts: 1,111

**Math**

What is 100x=
*August 13, 2014*

**college algebra**

(2x2y2-3xy+4)(4xy2)
*August 5, 2014*

**Writing **

How might one write a proposal with a sample script for a movie or TV program?
*July 31, 2014*

**My Final Algebra 1 Question**

Will someone evaluate my answers and guide me through answering the last two parts of the problem? Thank you. 5. Principal Farley has $200 to pay for some teachers to attend a technology conference. The company hosting the conference is allowing 2 teachers to attend for free. ...
*June 10, 2014*

**Algebra 1--Please, help me!**

What are 2 values of b that will make 2x^2 - bx - 20 factorable? Explain your answer. A: ?
*June 10, 2014*

**Algebra 1--PLEASE, WILL SOMEONE HELP ME?!**

Please!
*June 10, 2014*

**Algebra 1--Please, help me!**

1. Mr. Lui wrote 15 - 5x/x^2 - 9x + 18. a. Explain what kind of expression it is. b. Simplify the expression. Show your work. c. Identify any excluded values. A: a. It is a rational expression. b. 5/x - 6 c. Excluded value: x = 6 2. Lynne can paint a wall in 40 minutes. Jeff ...
*June 10, 2014*

**Algebra 1 **

5. Principal Farley has $200 to pay for some teachers to attend a technology conference. The company hosting the conference is allowing 2 teachers to attend for free. The number of teachers y that can be sent to the conference is given by the function y = 200/x + 2, where x is...
*June 10, 2014*

**Algebra 1--Please, help me!**

4. The sum of the digits of a two-digit number is 11. If 45 is added to the number, the digits will be reversed. a. Write a system of equations that you can use to find the digits of the number. Tell what each variable represents. b. Solve the system of equations to find the ...
*June 10, 2014*

**Algebra 1 **

1. Mr. Lui wrote 15 - 5x/x^2 - 9x + 18. a. Explain what kind of expression it is. b. Simplify the expression. Show your work. c. Identify any excluded values. A: a. It is a rational expression. b. 5/x - 6 c. Excluded value: x = 6 2. Lynne can paint a wall in 40 minutes. Jeff ...
*June 10, 2014*

**Algebra 1 **

I tried to graph y = x^2 - 4x + 4 and ended up with an x-intercept of -2 (the y-intercept is 4). However, according to wolfram, the x-intercept should be 2. Who is correct: me or the website?
*June 10, 2014*

**Algebra 1**

1. x = 2? 3. 0.70 = 1 (rounded to the nearest tenth)?
*June 10, 2014*

**Algebra 1**

1. What is the excluded value for the rational expression x^2 - 4/3x - 6? A: ? 2. The trinomial x ^2 - 6x + c is a perfect-square trinomial. What is the value of c? A: 9 3. Find the positive solution of the equation x^2 + 5x - 4 = 0. Round your answer to the nearest tenth. A...
*June 10, 2014*

**Algebra 1-- Please, check my answers!**

I know what they mean. I just wanted to make sure that I didn't misunderstand him.
*June 10, 2014*

**Algebra 1-- Please, check my answers!**

So they are correct?
*June 10, 2014*

**Algebra 1-- Please, check my answers!**

I'm sorry but I don't quite understand what you mean. Is the answer c? Also, what about the other questions? Will you evaluate the answers of those as well?
*June 10, 2014*

**Algebra 1-- Please, check my answers! **

1. What is ((-12x^6 + x)) / ((-4x^2))? A: 3x^4 - 1/4x 2. What is the greatest common factor of the terms of the polynomial 6x^3 - 18x^2 + 12x + 3? A: 3? 3. Which is a solution to n/n+2 = -8/n? a. -4 b. -2 c. 2 d. 4 A: a? 4. Which of the following is equivalent to ((2x^5y^2)/(...
*June 10, 2014*

**Algebra 1**

I tried the same method that you did to graph the equation y =x^2 -4x + 4 and my x-intercepts are both -2 (the y-intercept is y= 4). However, according to wolfram, the x-intercept should be 2. Who is correct: me or the website?
*June 10, 2014*

**Algebra 1 **

How can I determine a equation from a graph? How can I determine how to graph y = x^2 + x - 2? Or y = x^2 - 4x + 4? Am I supposed to use the slope method (rise and run)?
*June 10, 2014*

**Algebra 1--Please, help me!**

1. What are the x- and y-intercepts of the line described by 6x - 2y = 4? a. x-intercept: 2/3; y-intercept: 2 b. x-intercept: -2/3; y-intercept: 2 c. x-intercept: 2/3; y-intercept: -2 d. x-intercept: -2; y-intercept: 2/3 My answer: ? 2. Which expression is equivalent to 3m^2n/...
*June 9, 2014*

**Algebra 1--Please, check my answer!**

1. A city map is laid out on a coordinate plane. Elm Street is described by the line x + 2y = -6. Oak street intersects Elm Street at an right angle. Which of the following could be the equation for Oak Street? a. 2x + y = 5 b. -2x + y = 3 c. x + 2y = 4 d. -x - 2y = 8 My ...
*June 9, 2014*

**Algebra 1--Please, help me!**

A city map is laid out on a coordinate plane. Elm Street is described by the line x + 2y = -6. Oak street intersects Elm Street at an right angle. Which of the following could be the equation for Oak Street? a. 2x + y = 5 b. -2x + y = 3 c. x + 2y = 4 d. -x - 2y = 8 My answer: d?
*June 9, 2014*

**Algebra 1--Please, check my answer!**

I'm sorry but I'm slightly confused. How does x = 6 when the graph is y =(x-6)^2?
*June 9, 2014*

**Algebra 1--Please, check my answer!**

At how many points does the graph of y = (x-6)^2 intersect the x-axis? A: Two.
*June 9, 2014*

**Algebra 1--Please, help me!**

Mulitply ((n-5)/(n^2 - 2n -3)) / ((n-3)/(n^2 -4n - 5)).
*June 3, 2014*

**Algebra 1 **

1. A chemistry student needs to make a solution that is 70% water and 30% hydrochloric acid. The student's current mixture of 300 ml is 60% water and 40% hydrochloric acid. How much water must the student add to achieve his desired solution? A: ? 2. 5. 2/t + 4/3t = 4/t + 2...
*June 3, 2014*

**Algebra 1--Please, help me!**

Please, will someone check my answers and help me solve the other questions? 1. It takes Dustin 2 hours to shovel the snow from his driveway and sidewalk. It takes his sister 3 hours to shovel the same area. How long will it take them to shovel the walk if they work together? ...
*June 3, 2014*

**Reiny? **

Reiny?
*June 3, 2014*

**Algebra 1--Please, help me!**

Also, is #5 correct? bobpursley's response was somewhat unclear.
*June 3, 2014*

**Algebra 1--Please, help me!**

What about #1 and #2?
*June 3, 2014*

**Algebra 1--Please, help me!**

1. It takes Dustin 2 hours to shovel the snow from his driveway and sidewalk. It takes his sister 3 hours to shovel the same area. How long will it take them to shovel the walk if they work together? A: Working together, Dustin and his sister can shovel the walk in 1 1/5 hours...
*June 3, 2014*

**Algebra 1 (Reiny)**

1. It takes Dustin 2 hours to shovel the snow from his driveway and sidewalk. It takes his sister 3 hours to shovel the same area. How long will it take them to shovel the walk if they work together? A: Working together, Dustin and his sister can shovel the walk in 1 1/5 hours...
*June 3, 2014*

**Algebra 1 (Reiny)**

1. ((d + 2)/(d + 8)) = ((-6)/(d + 8)) A: ? 2. 4/n^2 = 7/n + 2 A: n = -4 or n = 1/2? 3. 2/t + 4/3t = 4/t + 2 A: t = 10? 4. ((x -6)/(x^2-6)) = ((-4)/(x-4)) A: ?
*June 3, 2014*

**Algebra 1 (Reiny)**

Thank you so much!
*June 3, 2014*

**Algebra 1 (Reiny)**

I'm sorry but I'm confused about the steps you took in the part of the equation that you began to solve for me. Maria has 8 cups of a fruit punch that consists of 25% orange juice and 75% apple juice. She wants to make a drink that is 40% orange juice. How many cups of...
*June 3, 2014*

**Algebra 1 **

Solve. Check your answer. 1. ((d + 2)/(d + 8)) = ((-6)/(d + 8)) A: ?
*June 3, 2014*

**Algebra 1--Please, check my answer!**

Solve. Check your answer. 1. ((1)/(x)) = ((2)/(x^2)) A: x = 2
*June 3, 2014*

**Algebra 1--Please, help me!**

1. Maria has 8 cups of a fruit punch that consists of 25% orange juice and 75% apple juice. She wants to make a drink that is 40% orange juice. How many cups of orange juice should Maria add to th mixture? A: ? Determine whether the trinomial is a perfect-square. If so, factor...
*June 3, 2014*

**Algebra 1--Please, help me!**

1. Maria has 8 cups of a fruit punch that consists of 25% orange juice and 75% apple juice. She wants to make a drink that is 40% orange juice. How many cups of orange juice should Maria add to th mixture? A: ? Determine whether the trinomial is a perfect-square. If so, factor...
*June 3, 2014*

**Algebra 1--Please, check my answer!**

Connor and Matt walks a 12-mile course as part of a fitness program. Matt walks 1 mi/h faster than Connor, and it takes him 1 hour less than Connor to complete the course. How long does it take Connor to complete the course? A: It takes Connor 4 hours to complete the course?
*June 3, 2014*

**Algebra 1**

What are the steps to solve this?
*June 2, 2014*

**Algebra 1--Please, help me!**

Please!
*June 2, 2014*

**Algebra 1 **

Maria has 8 cups of a fruit punch that consists of 25% orange juice and 75% apple juice. She wants to make a drink that is 40% orange juice. How many cups of orange juice should Maria add to th mixture?
*June 2, 2014*

**Algebra 1**

It takes Connor 4 hours to complete the course?
*June 2, 2014*

**Algebra 1 **

Connor and Matt walks a 12-mile course as part of a fitness program. Matt walks 1 mi/h faster than Connor, and it takes him 1 hour less than Connor to complete the course. How long does it take Connor to complete the course?
*June 2, 2014*

**Peculiar Question**

What is 7/8 of an hour?
*June 2, 2014*

**Algebra 1 **

Solve. Check your answer. 1. ((3x-7)/(x-5)) + ((x)/(2)) = ((8)/(x-5)) A: ?
*June 1, 2014*

**Algebra 1--Please, check my answer!**

Solve. 1. ((3)/(a-4)) = ((a) / (a-2)) A: a = 6 or a = 1
*May 31, 2014*

**Algebra 1 **

Solve. 1. ((3)/ (s-6)) = ((4)/(s)) + ((1)/(2s))
*May 31, 2014*

**Algebra 1--Please, check my answer!**

Solve. 1. ((3)/(s-6)) = ((4)/(s)) + ((1)/(2s))
*May 31, 2014*

**Algebra 1--Please, check my answer!**

Add or subtract. Simplify your answer. 1. ((2t)/(4t^2) + (2)/(t)) A: 5/2t
*May 31, 2014*

**Algebra 1 **

Multiply. Simplify your answer. 1. (3h^3 - 6h/10g^2) x (4g/g^2 - 2g) (This is the correct expression. There is no typo.) A: ? 2. (m^2 + m - 2/m^2 - 2m - 8) x (m^2 -8 + 16/3m -3) (This the correct expression. There is no typo.) A: ?
*May 31, 2014*

**Algebra 1-- Explain How to Solve**

Add or subtract. Simplify your answer. 1. (x^2 + 8x)/ (x - 2)/ (3x + 14)/ (x - 2) A: ? 2. (2t)/(4t^2) + (2)/(t) A: ? 3. (m^2 - m - 2)/ (m^2 + 6m +5) - (2)/(m + 5) A: ?
*May 31, 2014*

**Algebra 1**

I don't know the answers to only three of the expressions I have posted. The rest are the answers that must be checked.
*May 30, 2014*

**Algebra 1 **

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) (There is no typo.) A: ? 4. (m^2 + m - 2/m^2 - 2m - 8) x (m^2 -8 + 16/3m -3) (There is no typo.) A: (m-4)/3 Add or subtract. ...
*May 30, 2014*

**Algebra 1--Please, check my answers!**

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) (This is the correct expression. There is no typo.) A: ? 4. (m^2 + m - 2/m^2 - 2m - 8) x (m^2 -8 + 16/3m -3) (This the correct...
*May 30, 2014*

**Algebra 1 Answer Re-evaluation**

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) (This is the correct expression. There is no typo.) A: ? 4. (m^2 + m - 2/m^2 - 2m - 8) x (m^2 -8 + 16/3m -3) (This the correct...
*May 30, 2014*

**Algebra 1--Please, check my answers!**

Please!
*May 30, 2014*

**Algebra 1--Please, help me!**

Divide. Simplify your answer. 1. 2/n^3 / n-6/n^5 A: 2n^3/n-6? 2. 2x^2 + 8x + 6/x / 2x^2 + 2x/x^3 - x^2 A: 1 3. 8b^3c/b^2c / (4b^2 + 4b) A: 1/2b^2
*May 30, 2014*

**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
*May 30, 2014*

**Math**

Cos180* - Sin90* + Cot45* - Csc30* - Sec240* - Tan315* How do I do this?
*May 28, 2014*

**Algebra 1--HELP!**

Please!
*May 27, 2014*

**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 ...
*May 27, 2014*

**Algebra 1--Please, help me!**

Mulitiply. Simplify your answer. 1. 3r^2t/6st^3 x 2r^2s^3t^2/8r^4s^2
*May 27, 2014*

**Algebra 1--Please, check my answer!**

Am I correct?
*May 27, 2014*

**Algebra 1**

Thank you so much! So the correct answer is 15/76 or 0.20? Please, will you help me with my other posts as well?
*May 27, 2014*

**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...
*May 27, 2014*

**Algebra 1**

Is this the answer to #1? Or am I incorrect?
*May 27, 2014*

**Algebra 1--Please, check my answer!**

Am I correct? I still don't know the answer to #1.
*May 27, 2014*

**Algebra 1**

1. A: ? 2. A: 1/3x-15
*May 27, 2014*

**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: ?
*May 27, 2014*

**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...
*May 27, 2014*

**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...
*May 27, 2014*

**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 ...
*May 27, 2014*

**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...
*May 26, 2014*

**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 ...
*May 26, 2014*

**Algebra 1--Please, help me!**

The side of a trinagular roof is to have the same height h and base b (with a 2 below) as the side of a trapezodial roof. a. What is the ratio of the area of the triangular roof to the area of the trapezoidal roof? (For a triangle, A = 1/2b(with a 2 below)h. For a trapezoid, A...
*May 23, 2014*

**Algebra 1--Please, help me!**

The side of a trinagular roof is to have the same height h and base b^2 as the side of a trapezodial roof. a. What is the ratio of the area of the triangular roof to the area of the trapezoidal roof? (For a triangle, A = 1/2b^2h. For a trapezoid, A = b1 + b2/2h.) b. Compare ...
*May 23, 2014*

**Algebra 1--Please, help me!**

The side of a trinagular roof is to have the same height h and base b^2 as the side of a trapezodial roof. a. What is the ratio of the area of the triangular roof to the area of the trapezoidal roof? (For a triangle, A = 1/2b^2h. For a trapezoid, A = b1 + b2/2h.) b. Compare ...
*May 23, 2014*

**Chemistry**

Why would copper (II) sulfate solution react with iron to produce 3 CuSO4(aq) + 2 Fe (s) = 3 Cu (s) + Fe2(SO4)3 (aq)
*May 22, 2014*

**Algebra 1 **

Simplify by factoring the numerator of the given rational expression: 4x^2 - 4x/8x
*May 22, 2014*

**physics**

A 3.0 L balloon at 300 K is placed in a cooler at 225 K. What is the volume of the balloon after it has been in the cooler?
*May 20, 2014*

**physics**

An electric stove operates on a larger 220 V line. How much power is needed to cook a pizza if 0.45 A of current is used.
*May 20, 2014*

**physics**

A pulley applies a force of 200 N over a distance of 15 m to raise a 530 N drum 4 meters. Calculate the work output done by the pulley.
*May 20, 2014*

**physics**

A 4.0 kg ceiling fan is placed 2.5 m above the floor. What is the gravitational potential energy of the fan(use Earth's value for gravitational acceleration)?
*May 20, 2014*

**Algebra 1 **

Marie has a square piece of cloth. She needs another piece with a length 2 inches shorter than the side of the square piece and a width 2 inches longer. The area for the new piece of cloth is 780 in^2. What will be the dimensions of the new piece of cloth? A: ?
*May 19, 2014*

**Algebra 1--Please, help me!**

Marie has a square piece of cloth. She needs another piece with a length 2 inches shorter than the side of the square piece and a width 2 inches longer. The area for the new piece of cloth is 780 in^2. What will be the dimensions of the new piece of cloth? A: ?
*May 19, 2014*

**Algebra 1--Please, help me!**

How am I supposed to graph the following functions? 1. A wholesaler is buying auto parts. He has $200 to spend. He recieves 5 parts free with the order. The number of parts y he can buy, if the average price of the parts is x dollars, is y = 200/x + 5. a. Graph the function. A...
*May 19, 2014*

**Algebra 1 **

Which values should I use to graph the rational function y = 1/x-2 - 6? (The asymptotes are x = 2; y = -6.) Also, what method could I use to choose values for graphing rational functions?
*May 16, 2014*

**Math**

Deana invests some money that earns interest compounded annually. At the end of the first year, she earns $400 in interest. At the end of the second year, she earns $432 in interest. a) what interest rate, compounded annually, is deana earning? b) how much did she invest?
*May 13, 2014*

**Algebra 1 **

Use the Zero Product Property to solve the equation. 1. (x + 2)(x -5) = 60
*May 13, 2014*

**Algebra 1 Answer Evaluation**

Thank you so much! Can you evaluate my other Algebra 1 posts as well?
*May 13, 2014*

**Algebra 1 Answer Evaluation**

Solve x^2 -6x - 13 = 0 by completing the square. Give exact solutions. A: x = ±√22 (or) x = ±4.69
*May 13, 2014*

**Algebra 1 **

Solve 2x^2 + 7x = -8 using the Quadratic Formula. A: No solution?
*May 13, 2014*

**Algebra 1 Answer Evaluation**

The height of a soccer ball kicked from the ground can be approximated by the function h = =16t^2 + 64t, where he is the height in feet and t is the time in seconds. Find the time it takes for the ball to return to the ground. A: It takes the ball 2 seconds to return to the ...
*May 13, 2014*

**Algebra 1 **

Use the Zero Product Property to solve the equation. 1. (x + 2)(x -5) = 60
*May 13, 2014*

**Algebra 1 **

Factor the polynomial by grouping. 1. -20 + 5y^2 + 4z - y^2z
*May 13, 2014*

**Algebra 1 Answer Evaluation**

Write the equation in point-slope form for the line with the given slope that contains the given point. 1. slope = 3; (5, 12) A: y = 3x - 3?
*May 13, 2014*

**Algebra 1 Answer Evaluation**

For each quadratic equation, identify the values of a, b, and c. 1. 16x^2 = 3x A: a = 16; b = -3; c = 0. 2. -4x^2 = -9 A: a = 4; b = 0; c = -9.
*May 12, 2014*

**Algebra 1 (Step-by-Step)**

Will someone explain how to solve this? Write each equation in standard form. Solve by using the Quadratic Formula. 1. -7 = x^2
*May 12, 2014*

Pages: **1** | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Next>>