Saturday

December 20, 2014

December 20, 2014

Total # Posts: 136

**Calc. Help**

Simplify. #1. 5(2-i) - 3(4+3i) ..my work: 10-5i-12-9i -2-14i Do you leave this as the answer or can you simplify it further? #2. (2-i√2)²
*August 26, 2010*

**Chemistry**

What is the freezing point of a solution of AlCl3 that contains 55.0 g AlCl3 dissolved in 390 g of water?
*June 16, 2010*

**4th grade math**

Meg's dog Angel eats 4 1/4 c of food each day. Explain how Meg can determine how much food to give Angel if she needs to feed him only 2/3 as much. Need help solving.
*March 24, 2010*

**math**

How do I get a fraction to it's simplest form?
*March 23, 2010*

**sew**

What would life be like without Textiles
*February 2, 2010*

**3rd grade English**

the greatest City in the Midwest Is the words above capitalized correctly?
*September 8, 2009*

**Science**

Explain why the inside of cans are coated with a thin layer of tin or plastic.
*July 23, 2009*

**4th grade**

begin run ________________ begins runs began ran beginning running Read each column of words. Underline the root word in each word where an ending haas been addedmand circle the ending. Draw a box around the irregular form of the verb given. Can someone please help.
*February 26, 2009*

**trig!!**

sin^4 x (cos^2 x)=(1/16)(1-cos 2x)(1-cos4x) work one 1 side only!
*February 23, 2009*

**TRIG!**

Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6 x=1 - (3/4)sin^2 2x work on one side only! Responses Trig please help! - Reiny, Monday, February 23, 2009 at 4:27pm LS looks like the sum of cubes sin^6 x + cos^6 x = (sin^2x)^3 + (cos^2x)^3 = (sin^2x+cos...
*February 23, 2009*

**trig help again i cant get any of these**

sin^4cos^2x=(1/16)(1-cos 2x)(1-cos4x) work one 1 side only!
*February 23, 2009*

**Trig please help!**

(sin^2x+cos^2x)(sin^4x - (sin^2x)(cos^2x) + sin^4x) I DONT AGREE WITH THIS SHOULDNT IT BE (sin^2x+cos^2x)(sin^4x - (sin^2x)(cos^2x) + COS^4 X ??
*February 23, 2009*

**Trig please help!**

sin^6 x + cos^6 x=1 - (3/4)sin^2 2x work on one side only!
*February 23, 2009*

**precalc and trig**

i posted a sorry. i posted this twice on that one. And i dont understand how RS=LS and thanks
*February 22, 2009*

**precalc and trig**

cos^2 (a+x) -sin^2 a=cos x * cos(2a+x)
*February 22, 2009*

**Precalc and trig**

how does cos^2x(cos^2a – sin^2a) - 2sinacosasinx = cos^2x(cos^2a – sin^2a) – 2cosxcosasinxsina
*February 22, 2009*

**Precalc and trig**

thanks! i accidentally posted this twice
*February 22, 2009*

**Precalc and trig**

cos^2 (x+a)-sin^2(a)= (cos x)(cos (2a+x)) prove using only side i worked on the left side...
*February 22, 2009*

**spanish help quick!!! i have to submit my answers!**

so we are learning the pred. v imperfect but i dont know when to use which i sort of have an idea like habitual inturrupting etcetc but i get them all wrong El lunes pasado yo _tuvé__ una discusión con un compañero de clase. La discusión ...
*February 21, 2009*

**AP Spanish**

so we are learning the pred. v imperfect but i dont know when to use which i sort of have an idea like habitual inturrupting etcetc but i get them all wrong El lunes pasado yo _tuvé__ una discusión con un compañero de clase. La discusión ...
*February 21, 2009*

**trig**

find sin 2x if tan x=2 cosx>0
*February 18, 2009*

**Trig**

given sin(4x)=5/13 in Q II find Tan(2x) and cos(2x)
*February 18, 2009*

**4th grade english**

Blue whales and fin whales ( get or gets) to be over 80 feet long. Would the correct answer be get.
*February 5, 2009*

**4th grade spelling**

witness's witnesses' Is this the correct spelling for the two words above?
*January 13, 2009*

**4th grade English**

Would the word an be capital or lower case in an Apple a Day
*November 23, 2008*

**4th grade English**

Would an be capital or lower case an Apple a Day
*November 23, 2008*

**4th grade English**

a book titled an Apple a Day, would an and a be lower case or capital?
*November 23, 2008*

**Physics help again!**

A ball is thrown horizontally off a 35 m tall building. It hits the ground 80 m from the bottom of the tower. a. what is the balls time in the air [i got 2.67] b. what is its initial velocity? [i got 0] c. What is the magnitude and direction of its velocity as it strikes the ...
*October 20, 2008*

**physics help!!**

thank you!!
*October 20, 2008*

**physics help!!**

a plane moving horizontally at 120 m/s drops a package from an elevation of 240 m. How far did the package go before it hit the ground? Step by step directions please!
*October 20, 2008*

**Finance**

Which security offers a higher effective annual yield? a) a three month bill selling at $9764 b) a six month bill selling at $ 9539 And calculate the bank discount yield on each bill.
*September 7, 2008*

**music**

did the rich watch musicals when they first came out? who invented musicals?
*June 9, 2008*

**art**

can anyone help? i need to find out what relief means for my art homework
*April 13, 2008*

**music**

i need to find out what makes a good composer,i'm in year 11
*April 4, 2008*

**science**

what are the 5 branches of physics?
*August 29, 2007*

**English**

what is kravadar
*April 23, 2007*