Number of results: 8,889
please someone help me! i've tried so hard! factor m^6 + n^2 28x^2y^2 - 7x^4 8x^3y^3 +343z^3 thank you so much!!! For the second one: 28x^2y^2 - 7x^4 Factor out 7x^2: 7x^2(4y^2 - x^2) Now we try to factor 4y^2 - x^2, which is: (2y + x)(2y - x) We end up with this: 7x^2(2y + x...
Sunday, January 7, 2007 at 5:54pm by leah
Simplifying with Trigonometry Identities
Hi, I am a senior in High School having a really difficult time with two problems. I have to prove using the trigonometric identities that they equal each other but I am having a really hard time trying to get them to equal each other. I've spent over 2 hours trying to get ...
Wednesday, March 7, 2007 at 6:33pm by amanda
What is the general formula for the factorial notation? Hmmmm. Hard? n!= 1*2*3*4*...*n-1*n I have been missing from school and we have just learned it. So I am not very good at it. There is quite a lot on Wikipedia /wiki/Factorial Which includes the general formula and a ...
Saturday, March 31, 2007 at 9:39am by george
Solve for x to the nearest hundreth and can you explain how you get your answer I don't understand 3^x = 1.295 Your question has nothing to do with trigonometry. You can solve for x by taking the logarithm (to any base) of both sides of the equation. Then x log 3 = log 1.295 x...
Sunday, June 10, 2007 at 1:24pm by Linda
determine the trend of each linear function: 1. f(x)= 3x+5 I don't know what you call the "trend" or why you call this a trigonometry question. It is about algebra. The value of the function increases with x at a rate of three times the change in x.
Tuesday, July 10, 2007 at 12:09am by hugh
very hard math question Help
What do you find hard about this problem? It's simply a matter of multiplying the quantity by the price and adding them together. If you post your answer, we'll be glad to check it for you.
Friday, November 9, 2007 at 10:12am by Ms. Sue
English hard crossward
ok my teacher gave us a crossword puzzle to do she said i was so hard that we can ask anyone for help and use the internet to look up the answers if you want to help please reply.
Thursday, December 6, 2007 at 8:44pm by Mike
Do you have a calculator? I assume that the log you are talking about is base 10. log(47) = 1.672 log(w) = -2.866 + (2.722)(1.672) = 1.6855 w = 10^1.6855 = 48.5 lb This subject is not trigonometry. It is logarithms. You need a scientific/math hand calculator or a computer to ...
Wednesday, January 30, 2008 at 5:27pm by drwls
What is Trigonometry?
Wednesday, January 30, 2008 at 5:27pm by Beast
[Physics] super hard/long circuit problem
I have this last one which is really long/hard. It's so long that I just decided to scan the whole problem. So here it is... and thanks everyone for the help so far! h t t p ://img201.imageshack.us/my.php?image=circuit5ij7.png *remember to delete spaces or it won't load!
Saturday, April 12, 2008 at 10:07pm by Eileen
Trigonometry identities are so hard... I need some help proving these identities: *Oh, and I'm only in grade 11, so the identities we use are quotient identity and Pythagorean identity. sinx/(sinx + cosx) = tanx/(1 + tanx) cos^2x - sin^2x = 2cos^2x - 1 Thanks! Lucy
Sunday, April 13, 2008 at 9:53pm by Lucy
Well, i tried to see the beauty in trigonometry but to me, it is just too HARD!!!!!!!! There r so many formulae in trigonometry and how to i know which one to use. After i stay in the desk for 15 mins, i just wanna throw this stupid book away. I cant gain anything even i try ...
Saturday, July 19, 2008 at 1:03am by Tommy
How to memorize the sum-to-product and product-to-sum formulae more easily ?? I know how to deduce the formula but when i try to memorize it, its so hard. Always sin, cos, a+b, a-b, i always get confused. Is there any way to memorize more efficiently??
Monday, July 21, 2008 at 7:07am by Tommy
A weight is oscillating on the end of a spring. The position of the weight relative to the point of equilibrium is given by y=1/12(cos8t-3sin8t), where y is the displacement (in meters) and t is the time (in seconds). Find the times when the weight is at the point of ...
Monday, November 17, 2008 at 10:46pm by *tRiGoNoMeTrY*
By the way, this is not trigonometry. It is algebra.
Wednesday, August 12, 2009 at 8:48pm by drwls
This is not a trigonometry question. x^2 + 7x + (7/2)^2 = 11 + (7/2)^2 (x + 7/2)^2 = 23 1/4 x = -7/2 +/- sqrt(93)/2
Thursday, November 12, 2009 at 10:15pm by drwls
This is not about trigonometry. x^2 = -121 x = the square root of -121.
Thursday, November 12, 2009 at 10:37pm by drwls
My question is kinda hard i dont know how to start the problem to get my answer. the question is: You are cleaning the gutters on your house. the gutters are @ a height of 24 feet. if you have a 50 foot ladder, what is the minimum angle the ladder can form with the ground?
Sunday, December 6, 2009 at 1:29pm by kayla
An airplane flies due north from a starting point at 234.6 mph for 40 minutes. Then turns flying 20 minutes at 252 mph in the direction N 20 degree 31 minutes East. How many miles is the airplane from the starting point?
Tuesday, May 4, 2010 at 7:15pm by jake
find the two distances: northbound part = 234.6(40/60) = 156.4 miles NE part = 252(20/60) = 84 miles N 20°31' E = N 20.5166667 ° E I see a triangle with sides 156.4 and 84 with an angle of 159.48333 between them. by cosine law x^2 = 156.4^2 + 84^2 - 2(156.4)(84)cos 159.48333...
Tuesday, May 4, 2010 at 7:15pm by Reiny