Mysz S Breezie

Sec θ= 5

a) sin θ

b)tan θ

c) sec θ= 1/cos= 3

d) csc (90°- θ)

I need help with A, B, and D

I don't know how to do this problem at all!

Verify:

1). tan^2 x/secx = sinx tanx

2). sinx + sqrt 2= sinx

I dont know how to set this up. I do know to use the sum formula !

Calculate the enthalpy change,ΔHf°, for the formation of 7 mol of stronium carbonate from its elements.

Sr(s) + C(graphite) + 3/2 O^2(g) ----> SrCO^3

The experimental information available is:

1. Sr(s) + 1/2 O^2(g) -----> SrO(s) ΔHf° = -592 kJ/mol

2. SrO(s) + CO^2(g) -----> SrCO^3 ΔHf° = -234 kJ/mol

3. C(graphite) + O^2(g) -----> CO^2(g) ΔHf° = -394 kJ/mol

The compound pentane C5H12 is easily vaporized at room temperature. If a vapor exerts a pressure of 234 mm Hg in a flask at 25 degrees Celsius, what is the density of the vapor?

I DONT WANT THE ANSWER TO THE PROBLEM I JUST NEED THE FORMULA TO SET IT UP PLEASE

the total molar mass is 13.68g/mol (gas= CO2, N2, & He). what is the density of the gas at 38 degrees celsuis and a pressure of 744 mm Hg?

how to convert 192 mg/dl to g/ml ? I just need help on how to set up the problem

What are the newest video games that involves shooting, missions, robbing people? Something like grand theft auto. I want to buy a video game for my boyfriend.

I didnt get accepted to my university's nursing program so can i just take my general ed classes at my current school and take nursing classes in community college for two years to become an RN?

How is Zoey Redbird caring ? I am having a brain fart & can think. Please help me out !

Thanks in advance

I would I say she thinks she's cute . . .in spanish ?

thanks in advance

me & my besties are graduating soon & we aren't going to the same colleges. I want to gift for my three bestfriends what can i get them ?

I am in high school, a girl, & i want to learn about cars. Like learn about changing the oil & stuff like that. i am really interested in it. I live in new jersey/close to new york city. does anyone know where i can go to a class or something to learn about cars ?

thanks in advance = ]

Can you state 3 reasons safety means to you please .

thanks in advance = ] !

can someone please find out who & when was the Women's Ice Hockey Team founded ? i looked every where -_-

thanks in advance

Can someone please find the designer or website to this dress. I want to get this dress for my sweet sixteen.

This is the Front:

http://i486.photobucket.com/albums/rr227/brooklynm...

This is the Back:

http://i486.photobucket.com/albums/rr227/brooklynm...

Thanks in Advance

i got my 2 bottom wisdom teeth taken out a month and a week ago and on saturday i fell asleep with gum my mouth and when i woke up my cheek[where it was swollen when i got them out] was hurting and its swollen AGAIN !! urggghhh is there a possibility that it is infected and what should i do ?

I am having a sweet sixteen in a few more months and I am having a dilemma ! My party is going to be in a club, glow sticks, dark, virgin drinks(non-alcoholic) and the whole nine. Also my theme is leaning to be jordans vs. dunks (some people are going to wear jordans and some people are going to wear dunks but they don't have to) i need more ideas like bubbles, fog, chocolate fountain blah blah blah... idk. For graffiti i know my invitations are going to be in graffiti but i have no idea what to actually do for the graffiti/hip hop part for the party. Oh yea one more thing i don't know what i should call my party *[my name is Sadia]* I hope someone can help me =/

Thanks in Advance