Wednesday
July 30, 2014

Search: trigonometry HARD!!

Number of results: 4,525

Math (trigonometry)
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
April 13, 2008 by Lucy

TRIGONOMETRY
Because of the wind, a boat sails 4,728 meters in the direction S 47deg29mins W. How far south it goes? How far west has it gone? this is my report..please help me..i tried so hard but i really didn't get it..thanks!
August 6, 2010 by Winsel

Computer
Your computer is running very slow. The LED light for the hard drive blinks nearly continually, indicating that the hard drive is spinning even when data is not being saved or read from the hard drive. Based on this scenario, what is probably causing the slowness of the ...
January 10, 2013 by Nikki

English
My father was a hard working man but didn't earn much money. A. Correctly punctuated B. Add a comma after hard C. Close up hard working D. Add a hyphen after hard A
May 5, 2014 by Angela

Trigonometry One Quick Question! Please help!
Triangle ABC has side lengths 7, 24, and 25. Do the side lengths form a Pythagorean triple? Explain. Thank You so much! :) I'm having a hard time understanding this so it means alot!
February 20, 2012 by Amaya

English
I'll try to learn how to make a clear voice. I'll try to practice making a speech in my room. I'll try to study hard to go abroad. I'll try to study hard to learn in college in the USA. I'll try to study hard to learn linguistics in an American University. I'll try hard to be ...
March 12, 2009 by John

math trigonometry
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?
December 6, 2009 by kayla

question about corrections(what they mean)
ok. so this may be hard to explain and may not be enough info that you understand but ill try. I did a paper and my teacher corrected it and said changes i need to make. here is a clip from the paper of something that she commented on: " Here are some examples. Hard Tack meant...
December 13, 2010 by hannah

English
1. Don't take it too hard. 2. Don't take it so hard. 3. Don't take it too seriously. (Are they all the same? What other expressions can we use instead of #1? Is 'hard' an adverb or an adjective? What is the meaning of 'take' in the sentence?)
June 19, 2009 by John

English
1. If I had studied hard, I could have gotten a higher score. 2. If I had studied hard, I could have gotten a better result. 3. If I had studied hard, I could have gotten a good/better grade. 4. If I had studied hard, I could not have gotten a lower score. 5. If I had studied ...
October 3, 2013 by rfvv

Math Question
Jane has two tennis serves, a hard serve and a soft serve. Her hard serve is in (a good serve) 50% of the time, and her soft serve is in (good) 75% of the time. If her hard serve is in, she wins 75% of her points. If her soft serve is in, she wins 50% of her points. Since she ...
July 21, 2008 by Jen

English
4. Read the following passage from “The People Could Fly”: The slaves labored in the fields from sunup to sundown. The owner of the slaves callin himself their Master. Say he was a hard lump of clay. A hard, glinty coal. A hard rock pile, wouldn’t be moved. What do these ...
October 8, 2012 by -

Math214
Jane has two tennis serves, a hard serve and a soft serve.Her hard serve is in (a good serve) 50% of the time, and her soft serve is in (good) 75% of the time. If her hard serve is in, she wins 75% of her points. If her soft serve is in, she wins 50% of her points. Since she ...
February 13, 2010 by alicia

math
A computer store sold a total of 300 items last month. The store sold six times as many hard drives as they did CD-ROM drives, and half as many floppy drives as hard drives. Based on this information, how many of each item were sold? A. 30 hard drives, 90 floppy drives, and ...
May 15, 2009 by Emma

trigonometry HARD!!
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?
May 4, 2010 by jake

Trigonometry
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??
July 21, 2008 by Tommy

English
1. If you don't work hard, you will be poor. 2. If you don't work hard, you will become poor. 3. If you don't work hard, you will get poor. 4. Unless you work hard, you will be poor. (Which expressions are commonly used? Can we use all the expressions?)
December 9, 2008 by John

Grammar
Replace with or replace for? Sentence: I want to replace algebra (with/for) trigonometry. If I use the word with, then does that's an I want trigonometry and not algebra? If I use the word for, then does that mean I want algebra and not trigonometry? Any rules?
August 29, 2013 by Anonymous

English
1. You should study hard to get into university. 2. You should study hard to go into university. 3. You should study hard to go to university. 4. You should study hard to get to university. 5. You should study hard to enter university. (Are all the same in meaning? Which ones ...
September 4, 2009 by John

English
1. She studied hard, only to fail. 2. She studied hard, but failed. 3. She studied hard, but she failed. (Does #1 mean #2 and #3? Are they all grammatical? Do we have to put a comma before only?)
March 2, 2011 by rfvv

spanish
is this translated right? In the morning I wake up at 8:30 a.m. The first thing I do is brush my teeth and comb my hair. Then I eat breakfast. By 9:00 a.m., I start my schooling (home). The first thing I work on is trigonometry. Then I do English, Trigonometry, American ...
May 3, 2009 by y912f

trigonometry
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.
July 10, 2007 by hugh

Chemistry
One of the main components of hard water is CaCO3. When hard water evaporates, some of the CaCO3 is left behind as a white mineral deposit. If hard water solution is saturated with calcium carbonate, what volume of the solution has to evaporate to deposite 1.00x10^2 mg of CaCO3
April 24, 2011 by Trista Nigh

English. Adverbs
Underline the adverb in the sentence He worked hard and won the contest. Should both hard and won be underlined? Thank you
April 15, 2014 by Mom B

spelling
Please could someone tell me to how to spell 'hard-waring', the dictionary doesn't list it. Is it hard wearing, hardwaring. Thanks in advance.
December 13, 2008 by leanne

english
Which is correct? If you do it correctly, it is hard. OR If you do it right, it is hard.
March 12, 2009 by Beth

High School Courses
How often do state colleges which are moderately competitive require trigonometry? Is trigonometry something like algebra that they expect you to have, or do they usually not care as long as you have the right number of math courses? Would it look better for me to take ...
March 31, 2009 by Evelyn

Business Communication
1. Identify the sentence that contains the correct form ( the contraction or the possessive word). a. As the saying goes, "Its hard to say goodbye." b. As the saying goes, "It's hard to say goodbye." c. As the saying goes, "Its' hard to say goodbye." d. As the saying goes, "I'...
April 2, 2011 by Shauny

trigonometry
okay so i have this trigonometry problem were i HAVE to use logarithms. Now this is my work but can u help me solve it using logarithms. Find the area of the following triangles:(use logarithms) 1) c=426, A=45degrees 48' 36",and B=61degrees 2' 13"
February 20, 2011 by anon

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.
December 6, 2007 by Mike

education
sand, rocking chairs, animals, and strap swings are examoles of a__ environment. a) static b) soft c) creative d) hard. would the answer be d) hard
March 19, 2013 by sahar

Ecosystems
how weathering releases phospahte from rock? i really don't know, any sites i could go on to to get the answer? no wikipedia, or hard ones. english aint my language so hard words i wont be able to understand.
July 5, 2010 by Sherrie

Trigonometry
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...
June 10, 2007 by Linda

Math
Sagal works as a DJ at a local radio station.On occasion, she chooses some of the songs she will play based on the phone-in requests recieved by the switchboard the previous day. Sagal's list of 200 possible selections includes a)100 songs in the top 100 b)134 hard-rock songs ...
January 19, 2011 by Rania

Technology in the Classroom
There are several different hard drives available for a computer.Which of the following size hard drives is the largest?
November 16, 2011 by annie

Science
Well water in karst areas is often very hard. What is the role of chemical weathering in producing hard water in aquifers?
March 7, 2012 by Anonymous

Science
Well water in karst areas is often very hard. What is the role of chemical weathering in producing hard water in aquifers?
March 7, 2012 by PLEASE HELP

hitting a hard floor
i weigh 200 drop to hard floor what the force of the falll I'm 5ft 1?
March 15, 2011 by kissme

English
1. You have to study hard to get into university. 2. You have to study hard to go into university. 3. You have to study hard to enter university. 4. You have to study hard to enter the university. (Are the four sentences all grammatical and the same?)
April 11, 2014 by rfvv

computers ( basics)
the keys to my computer are hard 2 use have 2 press very hard 2 use also makes like a tapping noise any ideas thanks
August 16, 2008 by Lea

Physics
Why should a tuning fork be set into oscillation by striking it with a soft rubber mallet rather than with a hard metal mallet? Striking it with a hard mallet excites higher order modes rather than mainly the fundamental. That is because a hard mallet impact causes steep ...
July 1, 2007 by Rob

algebra 1 scale drawing
On a scale drawing of steps with the base being 1 3/4 inches and the steps going up 1/4 inch each on the drawing.Which scale was used for the drawing if the actual height of each step is 6 inches? A. 1/8 = 1 foot, 10 ines the are hard as heck 2 its hard and yet my teacher isn'...
February 13, 2007 by Hailey

Computer Hardware
Your computer fails to boot which has Vista as the operating system. You suspect that the problem is the hard drive, but you aren't sure. What can you do to prove that the problem is indeed the hard drive? A. Install XP on the hard drive and attempt to boot. B. Boot into Safe ...
January 19, 2013 by Beth

Algebra 1
write an equation of the line containing the point and perpendicular to the given line (4,-8); 2x+5y=4 I am having a very hard time, but I'm trying hard to study the steps for solving the problem. Profoundly, thank you.
January 26, 2011 by Esther

english double checking
The story of "The Turtle and the Rabbit Run a Race" teaches a few lessons. What lesson does it teach about cheating? "The Turtle and the Rabbit Run a Race" personally taught me if I don't work hard, and I cheat to earn the success I want; I will get the negative revenge of my ...
November 24, 2011 by Anonymous

MATH EMERGENCY!!
Please help. I know I asked this before, but the answer was lost during the upgrade. Show that 0.00317 is a rational number by writing it as a quotient of integers. (the 317 has a line over it.) please help. thats hard really hard im in grade 5!!!!
June 15, 2006 by Jonathan

math
I must simplify this equation and am having a hard time (5+2a+3a)-(a2+a-6) I also would like to know if you could help me with this onex(4x2+3x-5)-2(4-x2) this is also simplifing. I have a really hard time with these, thank you
March 6, 2008 by kristina

Trigonometry
I really need help with this trigonometry question.please any help is appreciated. 1.I have to draw the graph of y=cos x from 0deg to 360deg. 2.Be sure to show a table of vales similar to the this table. colum X l colum :y=sinx 0 l 0.00 pi/10 l 0.31 pi/5 l 0.59 3pi/10 l 0.81 ...
March 7, 2011 by anon

Math
The converse of this: If you study hard, then your grades will be good. I think it should be : If your grades are good, then you studied hard. Is this correct?
July 21, 2009 by B.B.

Trigonometry
Alrighty I have to find two real world sinusoidal functions. I found: 1. A piston in an engine moves up and down in a cylinder. The height, h centimeters, of the piston a t seconds is given by the function: h= 120 sin(πt) + 200. 2. You can find the amplitude of a wave ...
November 6, 2012 by Lauren

Maths trigonometry
using basic trigonometry derive the following equations, which are used to convert cartesian to polar coordinates and vice versa. why is the cos(phi)in the x term? x = R cos (phi) sin (lamda) y = R sin (phi) they are used in orthogonal projection of a spherical surface to a ...
October 16, 2011 by forest

communication
It’s hard to believe that a woman her age could accomplish so much. Inclusive Language—Making Language Nonracist and Nonagist. How can I do that. This is my one out of 10 it has me stump. woman, or person? Why not just drop the "her age" words? It's hard to believe a person ...
July 5, 2007 by marie

logic
What would be the standard form of the following sentence? "The only road to success is hard work" First I had "All roads to success are hard work." Now I'm thinking that that's wrong because "roads" is plural and I'm talking about "THE road." So now I'm thinking: "All things ...
December 31, 2008 by anonymous

Statistics-Probability
An instructor will choose 3 problems from a set of 7 containing 3 hard and 4 easy problems. If the selection is made at random, what is the probability that only the hard problems are chosen?
February 5, 2013 by Steven

English
How can you remember the noun, adjective, adverb, and changing adjectives and nouns into verbs suffixes and the anglo-saxon affixes?...i have the hard time memorizing them because it is hard to tell the difference...like adjectives and adverbs...do you have any tricks to ...
March 12, 2008 by Shannon

metrics
why is it so hard It isn't hard. It may be different and different things we deal with take some adjustments. Tell us what your problems are and perhaps we can tell you how we dealt with those problems the first time we encountered them.
November 30, 2006 by john

English
How does Junsu look today? He looks tired. Do you know why? Yes, I do. 1. He studied hard for more than 3 hours. 2. He helped his mother clean the house on Sunday. 3. He went to a mountain and played with his friends all day long. 4. He rode a bike to Haeundae Beach and came ...
March 19, 2009 by John

hard math
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...
January 7, 2007 by leah

Data Management
Jeffrey wants to start his second hour with a hard-rock song and finish with a pop classic. How many different playlists can Jeffrey prepare if he has chosen 4 hard rock songs, 5 soul pieces and 3 pop classics?
November 4, 2009 by May

Intro to Psychiology 1
Basic arithmetic is not an easy task for Jeanne. In fact, she has to work hard at understanding mathematical concepts. She finds it hard to believe that basic math skills are: A) Present in all species B) A natural inclination, because they relate to language C) Present in all...
August 25, 2009 by Anonymous

Chemistry 20
Sorry, the 1st part to those 2 questions are: Hard water contains metal ions, most commonly calcium and magnesium ions. Some moderately hard water is found to contain 200ppm of calcium hydrogen carbonate.
April 30, 2011 by Cheryl

english
Does number one look good so far? Thanx 1. The story of "The Turtle and the Rabbit Run a Race" teaches a few lessons. What lesson does it teach about cheating? 1- The story of The Turtle and the Rabbit Run a Race teaches that even if you get what you want, and win you will ...
November 24, 2011 by Anonymous

English
1. You have to study hard. 2. You don't have to study hard. 3. You have not to study hard. (Is #2 the same as #3?)
December 2, 2010 by rfvv

Chemistry
Points in favour: 1.Diffusion helps reduce the pollution of toxic gases. Points against: 1. old stains of ink, tea/coffee, cooked food are hard to remove through diffusion, or just hard to remove ... HELP PLS....V.V.IMPORTANT
May 1, 2013 by Anjana

business math
a computer store sold 300 items -store sold 6 times asa many hard drives as theyn did cd-rom drives and half as many floppy dtives as hard drives how many of each item
May 16, 2010 by judy

English
I worked hard with my mother in the fields. It was hard work, but I learned a lot about farming. ------------------- In the passage, what does 'it' refers to? What is the part of speech of 'a lot'? Does 'a lot' modify 'learned' or is 'a lot' the object of 'learned'?
August 25, 2008 by John

Math
A computer store sold a total of 300 items in a month, and sold six times as many hard drives as they did CD-ROM drives, and half as many floppy drives as hard drives, how many of each item were sold?
June 1, 2009 by Laurie

[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!
April 12, 2008 by Eileen

Potato
Is peeling potato hard or cutting potato hard? I just wanted to tell you this is a homework help website and I noticed that some of your posts aren't exactly about homework. This is for homework help not chatting!And what exactly are you talking about is peeling or cutting ...
December 29, 2006 by Rano

Resume
What is the different between posting a resume on line and hard copy An online resume is like a web page. It contains information about you, and other people can access it from a computer. A hard copy resume is a resume that is printed out on a piece of paper.
July 29, 2006 by chandara

probability
A computer has 12 hard drives. The probability that an individual hard drive fails within one year is .25. What is the probability that the system will have exactly 4 failures in one year?
April 14, 2013 by Anonymous

English
(1) We decided to climb Mt. Rainer, but it was a long, hard journey to Washington State from Medford, Oregon. (2) We were worried about our likely sucess in the cold enviroment of the upper slopes. (3) For one thing, Marty was broke and anxius about having warm clothes for ...
January 9, 2014 by Nicole

math
if takes 6 minutes to hard-boil 3 goose eggs when dropped into boiling water, how long will it take to hard-boil 6 goose eggs? About the same amount of time. 18 minutes
October 1, 2006 by monica

Chemistry
I saw this sentence,"Most metals are strong and can be hit without breaking because they are HARD." But aren't pure metals soft and weak? Why do we still say they can be hit without breaking because they are hard?
January 24, 2009 by candy

english
Can someone please tell me how this paragraph would be rated? Literary technique paragraph using the second paragraph of the Jan 2011 regent. In passage 2, the author Marge Piercy uses similie to portray the hard work people he loves best do. Similes compare one item to ...
June 16, 2011 by Naviva

1st grade,Middle Sound
Hello there, My daughter going to first grade and i have very hard time to understand the middle sound on a word. I'm from Greece original so is hard for me This is the only thing she can not understand and i cant help her. Any Ideas how i can learn about it?
October 9, 2008 by Stefania

kind of etymology
ok so for my etymology class im doing a report and oral presentation on trade names and their etymologies. One of the first things i talk about are how companies or people choose a name for their product or compnay. one of the questions that most companies go by is is it ...
April 10, 2011 by Hannah

poetry
what is are good similies to add to life is like a box of chocolates? think in these terms: dark, light, sweet, bittersweet, creamy, hard, brittle, soft, warm, surprise inside, oddly shaped, second layer, intoxicating smell, hard to let go of, savory, dont want to finish the ...
April 12, 2007 by anonymous

psychology
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed. b. The hard drives thrashing from a memory leak. c...
January 22, 2014 by Steven

Chemistry 20
The mass of calcium hydrogen carbonate that would be found in 52.0L of hard water in a bathtub is _______________ g. The amount concentration of calcium hydrogen carbonate in the hard water is __________mmol/L
April 30, 2011 by Cheryl

into to comp
Which of the following is a common standard interface for hard drives? (Points: 5) API EIDE SCSI USB is it D What is the interface between a hard disk and the CPU? (Points: 5) BIOS filter Controller Interface mechanism Small Computer Interface Is it Controller
December 1, 2011 by Andy

choice
Explain how healthy behaviors and choices can positively effect your health status, and how unhealthy behaviors and choices will negatively affect your health status. Can someone please help me with this question, it doesn't seem hard but I am having a hard time figuring out ...
May 8, 2012 by lilman

pre algebra
Ellen buys 6 more paperbacks than hard covers. Paperbacks cost $8 each and hard covers cost $15 each. If Ellen spends a total of $117 on the books, how many of each type does she buy? Give a complete algebraic solution, using the distributive property.
January 8, 2013 by beth

7th grade science
1) what makes bones hard? 2) what is the hard,strong layer of bone called? 3) what is the smooth flexable layer of tissue covering the ends of bones? 4) what kind of joints are found in the skull and pelvis? 5) what type of muscles make up the majority of muscles in your body...
January 24, 2010 by mary

Biology
Is 9th grade biology hard? Is it interesting...?? I love life science but I just wondering if 9th grade biology hard??? I'm taking biology next year.
April 29, 2013 by Sarah

English
Class, answer the questions and add more expressions. 1. What do you do? I am a student. I try to study hard. 2. What does your father do? He is a baker. He bakes bread well. He is a delivery man. He is very strong. 3. What does your mother do? She is a house wife. She cleans ...
March 12, 2009 by John

Sports : Softball
I am always in sports. i have been playing softball lately and my arm starts to hurt when i throw sometimes it get so bad that the pain goes to my elbow. i can say it is noticing when i play that i am not throwing as hard as i can and then i git yelled at for not throwing hard...
May 6, 2013 by Lonita

math
In 1980, the computer hard disk had a maximum capacity of 10 to the 7th power bytes. In 2000 computer hard disk capacity had increased to 10 to the 11th power bytes. By what factor had hard disk capacity increased between 1980 and 2000?
January 7, 2013 by rachel

computer Science
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed. b. The hard drives thrashing from a memory leak. c...
January 22, 2014 by Steven

computer Science
20 You are trying to boot your computer but your computer keeps displaying a message after the POST that says “'invalid specification”. What does the error mean?” a. an attempt to overclock the primary drive has failed. b. The hard drives thrashing from a memory leak. c...
January 28, 2014 by Steven

English grammar
1. The cat did excrement, so it was hard to keep the cat. 2. The cat vomitted droppings, so it was hard to keep the cat. ----------------------------------- Are they correct expressions? Would you correct the errors if any?
November 22, 2007 by John

physical
What is bone strengthening? A. How hard a person works to do an activity B. How hard a person plans to do an activity C. How easily a person is able to do an activity D. How difficult it is for a person to complete an activity
November 13, 2013 by shakileya

History
What is one more reason that global peace would be very hard to achieve one day. So far I have because humans always want what someone else wants like land natural resources.( I Expanded on that) And that Multiculturalsim exists because since there are so many different ...
April 20, 2009 by Kara

CHEMISTRY SCIENCE
Points in favour: 1.Diffusion helps reduce the pollution of toxic gases. Points against: 1. old stains of ink, tea/coffee, cooked food are hard to remove through diffusion, or just hard to remove ... can u please elaborate on the same topics we are supposed to write it for one...
May 30, 2013 by MALAVIKA

physics
A student is attempting to haul a 500 kg log down a 24 degree hill. The log has a coefficient of friction of .5. The student is pulling with about 1700 N of force. Is the student pulling too hard or too lightly? Calculate exactly how much harder or less hard the student should...
February 19, 2013 by Aaron

statistics
A researcher conducted a study of the access speed of 40 hard drives and concluded that his maximum error of estimate was 15. If he were to conduct a second study to reduce the maximum error of estimate to 5, about how many hard drives should he include in his new sample?
May 10, 2012 by Koia

trigonometry
sinxcosx=0,x=?
October 9, 2007 by raygene

Trigonometry
What is the arcsin of (pi/2)?
November 8, 2009 by Anonymous

trigonometry
what is sin 35=x/6
October 17, 2010 by aundrea

Trigonometry
sin x= -1
May 30, 2011 by Abigail

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