Sunday

February 19, 2017
Total # Posts: 29

**math**

20x-x^2=0

*October 19, 2015*

**Organic Chemistry**

An unknown carboxylic acid has a boiling point of 100 c at 25 torr. Determine its boiling point at 760 torr. I'm given a list to identify an acid that it correlates with. I'm confused as to how I set this up.

*September 8, 2015*

**math**

Y=2 x=4

*December 11, 2014*

**trigonometry**

3. write tan (π/4-β) as a function of β only. 8. write cos(λ+ π/3) as a function of λ only. 16. Write cos(–83°) as a function of a positive angle. 23. Write sin(125°) in terms of its cofunction. Make sure your answer is a function of ...

*December 18, 2012*

**trignonmetry**

6. Prove that tan λ cos^2 λ + sin^2λ/sin λ = cos λ + sin λ 10. Prove that 1+tanθ/1-tanθ = sec^2θ+2tanθ/1-tan^2θ 17.Prove that sin^2w-cos^2w/tan w sin w + cos w tan w = cos w-cot w cos w 23. Find a counterexample to...

*December 16, 2012*

**grammar**

U guys are smart but i am not... i need help, please help me

*May 1, 2012*

**chemistry this is confusing to me please help**

im doing the same thing and its confusing me DX

*March 9, 2012*

**precalculus**

thank you :)

*April 28, 2011*

**precalculus**

find lim y. and lim y x->infinity. x-> negative infinity 1.) y= (x + sinx)/x 2.) y= x/ (1+ 2^x)

*April 28, 2011*

**PRECALCULUS**

thank you guys so much! I had a really hard time with these. I appreciate it :)

*April 24, 2011*

**PRECALCULUS**

1.) determine two pairs of polar coordinates for the point (-4sqrt3, 4sqrt3)with 0degrees less than or equal to theta less than or equal to 360degrees 2.) Use DeMoivre's Theorem to find (1-i)^10. write your answer in the form a+bi. 3.) Find the cube roots of -8. Write your...

*April 24, 2011*

**PRECALCULUS**

find the cube roots of the complex number. 27((cos(11pi/6)) + i(sin(11pi/6))

*April 20, 2011*

**precalculus**

I don't see the link. I don't think this website allows you to put up links

*April 20, 2011*

**precalculus**

express the roots of unity in standard form a+bi. 1.) cube roots of unity 2.) fourth roots of unity 3.) sixth roots of unity 4.) square roots of unity

*April 20, 2011*

**precalc**

express the roots of unity in standard form a+bi. 1.) cube roots of unity 2.) fourth roots of unity 3.) sixth roots of unity 4.) square roots of unity

*April 20, 2011*

**Precalculus**

fin the product z1 * z2 and quotient z1/z2 using the standard form for z1 and z2. z1 = 2 - 3i and z2 = 1 - sqrt 3i

*April 20, 2011*

**PRECALCULUS**

thank you

*April 19, 2011*

**PRECALCULUS**

what do you mean?

*April 19, 2011*

**PRECALCULUS**

write the complex number in standard form a+bi sqrt 7 (cos pi/12 + i sin pi/12) (sqrt = square root, i= imaginary number)

*April 19, 2011*

**PRECALCULUS**

write the complex number in standard form a+bi sqrt 7 (cos pi/12 + i sin pi/12) (sqrt = square root, i= imaginary number)

*April 19, 2011*

**PRECALCULUS HELP PLEASE!**

thank you soooooooooo much

*April 16, 2011*

**PRECALCULUS HELP PLEASE!**

convert the polar equation to rectangular form. 1.) r sec(theta) = 3 2.) r = 4 cos(theta) - 4 sin(theta) convert from rectangular equation to polar form. 1.) x^2 + (y-1)^2 = 1 2.) (x-1)^2 + (y+4)^2 = 17

*April 16, 2011*

**Physics**

It would collapse, because you have to exert a downward force to go up. By pushing down on the cardboard that barely holds you, it will probably collapse.

*April 16, 2011*

**PRECALCULUS**

convert the polar equation to rectangular form. 1.) r sec(theta) = 3 2.) r = 4 cos(theta) - 4 sin(theta) convert from rectangular equation to polar form. 1.) x^2 + (y-1)^2 = 1 2.) (x-1)^2 + (y+4)^2 = 17

*April 16, 2011*

**Economic Stability**

An economy with fairly constant output growth and low and stable inflation. Basically, there is not too much money being lost, and the money coming in is at a good level. Good enough that there are not too many problems. Does that make sense?

*April 15, 2011*

**trig**

type into google "coolmath graphing calculator" then on the calculator, just type in -4 cos(x/2 + 3.14) + 1 and then press enter on your keyboard. the graph should show up.

*April 15, 2011*

**Algebra**

2/3, because there are 3 coin flips, but one is already tails, so there's only 2 more chances to get heads.

*April 14, 2011*

**reading**

type in "crossword solver" in google

*April 14, 2011*

**english**

make the word with below letter eiiioblrsty

*January 15, 2009*

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