# Posts by Hally

Total # Posts: 14

**Physics**

How can you recognise the beat frequency from a graph? Why is the beat frequency the difference between the two frequencies of the two sound waves (theory behind this)?

*March 6, 2016*

**Maths**

How can you recognise the beat frequency from a graph? Why is the beat frequency the difference between the two frequencies of the two sound waves (theory behind this)?

*March 6, 2016*

**Chemistry**

If a 20mL sample of milk has a 0.027M concentration of lactic acid, what would the pH be? what would the concentration and pH be in one litre?

*March 2, 2016*

**Chemistry**

If a 20mL sample of milk has a 0.027M concentration of lactic acid, what would the pH be? what would the concentration and pH be in one litre?

*March 2, 2016*

**Algebra II**

3n^2 - n/ n^2 - 1 / n^2/ n+1 is the answer 3n-1/n^2-n or 3-n/ n-1

*February 1, 2013*

**Algebra 1**

sqrt5 -1/x = sqrt5/2 i cross multiplied and i got 3.5= 2.23x is that right?

*January 28, 2013*

**Algebra II**

1)What method(s) would you choose to solve the equation: x2 + 2x - 6 = 0 A. Square roots; there is no x-term. B. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. C. Factoring; the equation is easily factored. D. Quadratic formula...

*January 15, 2013*

**Algebra 1**

1)A farmer plans to create a rectangular garden that he will enclose with chicken wire. The garden can be no more than 30 ft wide. The farmer would like to use at most 180 ft. of chicken wire. Write a system of linear inequalities that models this situation. 2) Determine the ...

*January 2, 2013*

**Algebra 1**

little help? 1)The function g(t) = 2t represents the number of guitar lessons, g(t), you can complete in t months. How many guitar lessons can you complete in 7 months? 2)A taco stand sells tacos for $3.25 each. The stand’s expenses for the day are $210. Write an ...

*January 2, 2013*

**Algebra 1**

Thank you! :D

*December 18, 2012*

**Algebra 1**

The local zoo is filling two water tanks for the elephant exhibit. One water tank contains 34 gal of water and is filled at a constant rate of 4 gal/h. The second water tank contains 30 gal of water and is filled at a constant rate of 2 gal/h. Explain. Let x = the number of ...

*December 18, 2012*

**English III**

In Dust Tracks on a Road, what kind of literature did the young Hurston like best that made her think of heroic deeds? B. stories of math geniuses <<-- C. stories that were great myths D. stories about young women 2)What is the main conflict in the speaker's mind in...

*October 1, 2012*

**English III**

1)Which of the following contributes most to the mystery of “An Occurrence at Owl Creek Bridge”? A. the breaking of the hangman's noose B. the shooting by the Union sentries C. Farquhar's underwater struggle D. the order in which events occur i think its &...

*September 18, 2012*

**math**

multiply -7(2a-4)

*June 30, 2010*

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