Friday
December 2, 2016

Posts by BREANNE

Total # Posts: 44

Math
The school band is comprised of middle school students to the number of high school students was 1:8. However, this year the ratio of middle school students to high school students changed to 2:7. If there is 18 middle school students in the band , how many fewer high school ...
November 10, 2016

Chemistry
I need to draw a line angle structure of ibuprofen that shows hydrogen bonding and I am stuck. Can anyone help?
July 27, 2016

Chemistry
Sorry for all the posts when I did the math your way I got 97.3 degress Celcius which does not make sense either because that would be higher then the starting temperature :S
January 11, 2013

Chemistry
I completed the math using your solution and it worked I have the concept of heat gained and heat lost confused could you assist with that?
January 11, 2013

Chemistry
Hello thanks for the reply that is what I had done but I keep getting a value that does not make sense. I possibly have the negative/positive signs mixed up. I know that heat is conserved so the heat lost by the milk would equal the heat gained by the ice. In your post you ...
January 11, 2013

Chemistry
On more than one occasion when our kids were small, we would come inside from playing in the snow and I would make hot chocolate by heating the chocolate milk in the microwave. Invariably, I would get the milk too hot for at least one of them. One time, rather than adding more...
January 11, 2013

US and Global Economics
(This homework question was removed due to a copyright claim submitted by K12 Inc.) Please help?
October 11, 2012

german
Think of a funny cartoon that you like. Choose a character or two from that cartoon and write 3-5 sentences telling what those characters did in the cartoon you watched. Use the simple past verb tense to write your sentences. ****I was thinking about doing 3-5 sentences on Tom...
October 6, 2012

trig
6. Compute the modulus and argument of each complex number. I did a-c and f. D. -5 E. -5+5i G. -3-4i 7. Let z= -5sqrt3/2+5/2i and w= 1+sqrt3i a. convert z and w to polar form b. calculate zw using De Moivres Theorem c. calculate (z/w) using De M's theorem Please help with ...
May 23, 2012

Trig
yes. sorry. I forgot the comma
May 22, 2012

Trig
what are the rectangular coordinates of (-2(pi/6))? please help.
May 22, 2012

english
What do the pieces you read by Richard Rodriguez, Amy Tan, and Julia Alvarez illustrate about the immigrant experience in twentieth-century America? How are the children in these works different from their parents? Use specific examples from the text in your response. Please ...
May 21, 2012

English
Consider the poems, short stories, and autobiographical pieces you read from the first half of the twentieth century during this semester. How did historical events and realities affect writers who were working during this time? What common threads did you observe in the works...
May 21, 2012

Chem
Chalcocite is an ore from which copper can be extracted for commercial use. The formula for this important ore is Cu2S. In the laboratory it is formed by the following reaction: 2Cu + S → Cu2S The reaction takes place in laboratory conditions that allow the reactant ...
April 28, 2012

Trig
thank you so much!
April 13, 2012

Trig
can I please have help with these 3 questions? 1. Solve this equation graphically on the interval [0, 2ð]. list the solutions. sin(2x)-1=tan x 2. solve sin x cos x= sqrt3/4 3. solve tan^2 x-3tan x+2=0 thank you! show step by step please.
April 13, 2012

History
thank you. :)
March 22, 2012

History
Imagine you are living in Los Angeles in 1944 and have just read about the case of Korematsu v. the United States. Write a letter to the editor of the Los Angeles Times telling which opinion in the case (majority or dissenting) you support and explain why. Help please? I have ...
March 22, 2012

trig
thank you so much! :)
March 17, 2012

trig
solve for theta 6. tan theta=-1 7. sin(theta/2)=1/2 thank you for your help!
March 17, 2012

trig
solve each equation for è, giving a general formula for all of the solutions: 6. tanè=-1 7. sin(è/2)=1/2 Please show step by step on how to solve these. Im not sure on how to do them. Thank you for your help!
March 7, 2012

trig
please help me with some questions I skipped on a review for our test coming up? solve 5-7 on the interval 0 greater than or equal to x less than or equal to 2pi. 5. sin x=sqrt3/2 6. cos x=-1/2 7. tan x=0 ---------------- 14. what is the exact value of tan[arcsin(.43...
February 22, 2012

Trig
what is the amplitude, period, phase shift, and vertical shift of each equation? 1. y= A cos(B(x-3))+4 2. y=-2sin(2piX/3) 3. y=4cos(3pi(x+3)) 4. y= -3cos(2(x-pi/4))+0.4 thank you so much!
February 16, 2012

trig
how does that tell how the graph of the function is related to a basic trigonometric graph?
February 10, 2012

trig
thank you!
February 10, 2012

trig
I don't understand this. can you please tell how you got each answer? describe how the graph of each function is related to a basic trigonometric graph. 1. y= 1/2cos x 2. y= 2cos x+1 3. y= sin x-4 4. y= sin(x-4) 5. y= sin(3x) 6. y= cos(1/2x) 7. y= -cos x 8. y= -cos x+2 9. ...
February 10, 2012

trig
thank you!
February 3, 2012

trig
What is the domain, range, and period of y= sin x + 1 What is the domain, range, and period of y= -cos x Can someone please help?
February 3, 2012

Trig
can you please simplify these in faction form? (pi/3) +1=? (2pi/3) +1=? (3pi/4) +1=? (5pi/4) +1=? (5pi/3) +1=? thank you so much!
February 3, 2012

Trig
a. What is the length of the hypotenuse of triangle ABC? b. What is the length of the shorter leg of triangle ABC? c. What is the length of the longer leg of triangle ABC? angle A=60, angle B=30, angle C=90 the triangle has a height of 10
February 3, 2012

Trig
the line is going from the center of angle C to between AB. Its cutting the triangle down unevenly. sorry its hard to explain. I wish i had the picture for you
February 1, 2012

Trig
Its a 30-60-90 triangle there's a line in the center that= 10 a. What is the length of the hypotenuse of triangle ABC? b. What is the length of the shorter leg of triangle ABC? c. What is the length of the longer leg of triangle ABC?
February 1, 2012

Trig
thanks! :)
February 1, 2012

Trig
angle b=25 degrees, angle c=90 AB= 25 a. Find the length of side b to two decimal places. b. Find the length of side a to two decimal places in three different ways.
February 1, 2012

Trig
I figured it out. :) the answer is supposed to be positive because sin is in the second quadrant. :)
February 1, 2012

Trig
Sarah used her calculator to find sin125 degrees . She wrote down sin125 degrees = -.57. How could Sarah recognize that her answer is incorrect?
February 1, 2012

Trig
Sketch a unit circle and label the terminal points corresponding to t= pi/4, 3pi/4, 5pi/4, 7pi/4. Include the coordinates of each point. I have 3 other problems like this and i have no clue how to do them. can someone help please?
January 28, 2012

trig
What is cos(11pi/3)? Explain your thinking. What is sin(13pi/4) ? Explain your thinking.
January 27, 2012

trig
Sketch a unit circle and label the terminal points corresponding to t= pi/4, 3pi/4, 5pi/4, 7pi/4. Include the coordinates of each point
January 27, 2012

trig
What are the coordinates of the terminal point determined by t=7pi/6 ?
January 27, 2012

5th grade
Wha are the names of the smaller mountain ranges that make up the Rocky Mountains?
September 6, 2010

algebra
(-4x+2)(x+5)
March 23, 2010

11th Grade math
(-4x+2)(x+5)
January 21, 2010

math (unit rate)
i GUESS YALL HAVE NOTHiNG BETTA 2 DO!!!(♥)
August 22, 2006

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