Tuesday

September 2, 2014

September 2, 2014

Total # Posts: 1,130

**Algebra 2 Answer Check**

Simplify by rationalizing each denominator. 1. 2/√3 A: 2√3 / 3 2. -18/√6 A: -3√6 Add or subtract. 3. 4√3 - 9√3 A: -5√3 4. √8 - 15√2 A: -13√2 5. √45 + √20 A: 5√5 6. 2√48 + 2√12 A: 12√...
*September 2, 2014*

**Algebra 2**

Sometimes true?
*September 2, 2014*

**Algebra 2 **

Classify the following statement as sometimes, always, or never true. 1. a - (b - c) = a - b + c A: The statement is always true?
*September 2, 2014*

**Algebra 2**

A: {x | -9 <_ x < -1 and x is odd}?
*September 2, 2014*

**Algebra 2 **

Rewrite each set in the indicated notation. 1. {-9, -7, -5, -3, -1}; set-builder notation. A: ?
*September 2, 2014*

**Algebra 2... **

Actually, this subject is Algebra 2.
*September 2, 2014*

**Algebra 1 **

Order the given numbers from least to greatest. 1. -√9, 2π, -1, 5.12(repeating decimal), -7/2 A: -7/2, -√9, -1, 5.12 (repeating decimal), 2π? Also, is -√9 a real and rational number?
*September 2, 2014*

**Algebra 2**

Use interval notation to represent each set of numbers. 1. -15 < x < 0 A: (-15, 0)? Rewrite each set in the indicate notation. 2. (Negative infinity, 3] or (5, 11]; words. A: ?
*September 2, 2014*

**Algebra 2 **

What does it mean when a negative sign is outside of a square root?
*September 1, 2014*

**Algebra 2 **

What are -√2 and √2/3 as decimals?
*September 1, 2014*

**Algebra 2 **

What is 2√5 as a decimal?
*September 1, 2014*

**Grammar**

Read the following sentences and underline the nouns. Write C above each concrete noun and A above each abstract noun. 1. Already his (legs)(C) were cramped, his (thigh)(C?)(muscles)(C) tired; his (knees)(C) hurt, his (feet)(C) felt numb and his (hands)(C) were stiff. 2. In ...
*September 1, 2014*

**Grammar**

Thank you!
*September 1, 2014*

**Grammar**

2. OP 6. OP
*September 1, 2014*

**Grammar **

Circle each enough in the sentences below, and label it according to its function. Write S, OD, OP, or PN above the noun. 1. (Hillary)(S) and (Norgay)(S) were (partners)(PN) in thier (climb)(OP) to the top of (Mount Everest)(OP). 2. Snow (glasses)(S) protected their (eyes)(DO...
*September 1, 2014*

**The Dream...**

Thank you!
*August 30, 2014*

**The Dream...**

So Norgay was referring to Everest and the truth of which of the two hikers, Hillary and Norgay, reached its summit first because he honors and respects Everest and belives that Everest deserved the truth?
*August 30, 2014*

**"The Dream Comes True from The Tiger of the Snows"**

"The Dream Comes True from The Tiger of the Snows" by Tenzing Norgay. 1. Why do you think Norgay is so concerned with the "prestige of Everest"? A: I think Norgay is so concerned with the "prestige of Everest" because he thought it might be ruined...
*August 30, 2014*

**"The Dream Come True from The Tiger of the Snows" **

"The Dream Comes True from The Tiger of the Snows" by Tenzing Norgay. 1. Why do you think Norgay is so concerned with the "prestige of Everest"? 2. What does he mean by "Everest and the truth"?
*August 30, 2014*

**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*

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