Monday
April 27, 2015

Search: First estimate the answer. Then multiply to find the exact answer 9 9/2* 4 5/6

Number of results: 123,265

LA
who is John Newberry and what signifigance did he have to the award, (I just need help finding a site with the answer on it, not the actual answer because that would be cheating)
March 26, 2012 by Katniss

MATH
2x-3(x+4)= -5 The answer is -7 , but I am unable to get this answer. tried working problem several ways get different answers for ex. I get -17 or 7 Please I need some help
July 24, 2012 by SARA

multiplying fractions
write a word problem for 1/3 x 1/4 use the definition of multiplication and math drawing to help determine the answer. explain you answer.
April 24, 2014 by bernadette

math
Write down all the odd numbers that are greater than-8 and less than 7.Please answer it i'll be appreciate to the one who will answer it back.THANK YOU!
September 20, 2014 by Kashaf Imran.

Geometry
One of two similar triangles has an area of 1/4 times than that of the other. What is the ration of the trangles' perimeter? (I know that the answer is 1:2, but i dont why that is the answer :( )
February 22, 2015 by Anonymous

Math
Dear Ms. Sue, Thank you for helping me very much. I was a little confused on your response to your answer posted at 7:23. Would my answer be 18 instead of 12? Thank you!
March 9, 2015 by Alice

Science
Can someone check if these are right: Tell the reaction rate 1.)Question: one antacid tablet is placed in a glass of cold water, while another table is placed in a glass of hot water. Answer:TEMPERATURE 2.) Question: a mixture of baking powder, flour, sugar, and eggs is placed...
January 14, 2014 by Kalie

stats
An investment broker reports that the yearly returns on common stocks are approximately normally distributed with a mean return of 12.4 percent and a standard deviation of 20.6 percent. On the other hand, the firm reports that the yearly returns on tax-free municipal bonds ...
October 3, 2013 by Help

statistics
An investment broker reports that the yearly returns on common stocks are approximately normally distributed with a mean return of 12.4 percent and a standard deviation of 20.6 percent. On the other hand, the firm reports that the yearly returns on tax-free municipal bonds are...
May 13, 2014 by please help!

Physics
1) A physics book is moved once around the perimeter of a table of dimensions 1 m by 3 m. What is the distance traveled? 2) A window washer drops a brush from a scaf- fold on a tall office building. What is the speed of the falling brush after 2.7 s? (Neglect drag forces.) The...
September 20, 2012 by Melanie

MAth
Ida plans to construct a square showing exact measurements of the sides. Which combination of tools would best help Ida construct the square? Answer A: pencil, compass, and straightedge B: pencil, string, and compass C: pencil, ruler, and straightedge D: pencil, straightedge, ...
September 25, 2011 by Taylor

Chemistry
Consider a mixture of the two solids BaCl2.2H2O (FM 244.26) and KCl (FM 74.551). When the mixture is heated to 160C for 1 hour, the water of crystallization is drive off: BaCl2.2H2O --> BaCl2(s) + 2H2O(g) A sample originally weighing 1.7839g weighed 1.5623g after heating. ...
September 28, 2011 by Asuna

Calculus
I don't know if I did these problems correctly. Can you check them? Use Integration by parts to solve problems. integral x^3(lnx)dx u=lnx dv=x^3dx du=1/x v=x^4/4 Answer:(x^3)(lnx)-(x^4/16) integral xcosxdx x cosx 1 sinx 0 -cosx Answer: xcosx+cosx integral e^2x(sinx)dx u=e^2x ...
November 18, 2007 by Anonymous

Economics
Could you please check this Directions: Match each item with the correct statement. Here are the words: supply elasticity law of supply price system technology price ceiling supply inelastic supply curve shortage market supply taxes 1. principle that suppliers will normally ...
May 14, 2009 by Taylor

math: algebra
I need help checking my answer. I wasn't sure if 8 and 8 were both side lenegth's or if 22 is the slant height but I think it is got kind of confused there also wasn't sure how I was suppose to solve it but I sloved the problem how I though it was suppose to be sloved I have ...
March 5, 2015 by meep

Chemistry
Estimate the rate of the reaction, H2SeO3 + 6I- + 4H+ Se + 2I3- + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 10^5 L5mol-5s-1)[H2SeO3][I-]^3[H+]^2 The reactant concentrations are [H2SeO3] = 1.5 × 10^-2 M, [I-] = 2.4 × 10^-3 M, [H+] = 1.5 × 10^-3 M. My...
February 1, 2015 by Is my answer right?

math
the hypothenus of a right angle triangle is 6cm with respect to the other two sides, one is 2cm longer than the other. Find the length of the two other sides to the nearest tenth. when i worked out this question, I got the answer as X=-5.1 or X=3.1 is my answer right, if it is...
January 3, 2011 by ted

Calculus
The radius of Earth at the equator is approximately 4000 miles. Suppose a jet flies once around Earth at a speed of 5000 miles an hour relative to Earth. If the flight path is a negligible height above the equater, then among the following choices, what is the best estimate of...
November 27, 2007 by Arnold

math
There are 18 boys and 60 girls working on a community service project. They work in groups where each group has the same number of boys and the same number of girls. Q1: What is the first step to finding the greatest number of groups possible? A. Multiply 18 times 60 B. Divide...
October 8, 2014 by Kyle

chemistry
how much thermal energy is needed to raise 500.0g of H2O at 50.0*C to steam at 100.0*C? step by step solution and answer!!???!! answer? You have to be kidding. Are you taking a quiz and want to turn it in? Goodness. Find the heat in each of the following. heat the water from ...
April 12, 2007 by crystine cole

check
#19, Inclusive Language-Quoting from Biased Material - The mayors and their wives were invited on a tour of the state buildings. Answer: The maors and their wives[sic] were invited on a tour of the state buildings. #8. Puctuation-colon - Studing is exciting: find something ...
August 24, 2007 by marie

Calculus
Evaluate the definite integral from [0,4] 4x^2 dx, by using its definition as a limit of approximating sums. First, I solve analytically so I know the answer I am trying to reach: 4/3 * x^3 over [0,4] = 4/3 * 4^3 = 256/3 Now, by approximating sums, I can get: 256 * lim(n ->...
May 30, 2011 by Sean

Foreign Language
The directions say to translate the sentence in Spanish and then rewrite it using Indirect or Direct Object Pronouns. Are my answers correct? 1.) She bought the house for us. My answer: Ella compró la casa para nosotros. 2.) She needs to walk the dog for us. My answer: Ella ...
January 9, 2015 by Jamie

Math.
How do you find the slope of this inequality (to graph it) x/14-85>6? The first thing to do is to determine what type of equation it is and what the solution set is. This is an inequality in one variable so it will only be some subset of the x-axis. We're given: x/14-85>...
September 7, 2006 by Mel

inverse function question
Hey, I'm having trouble fully understanding absolute value graphs and I've been asked find the largest value of a so that f^-1 exists for the function: f: (-efinity,a) --> R where f(x)= logel2x-1l *note: i have used 'l' to represent the straight line indicating the it is an...
November 8, 2007 by elle

Math
If sin(x) = 4/5 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y) I know that the denominator will be 65
March 19, 2010 by Bryan

geometry
a snow globe has a diameter of 6 inches.find its exact volume.then approximate its volume using 3.14 for [pi]
April 5, 2010 by Anonymous

math - natural logs
Find the EXACT solution to e^(1-x) = 4^x You must use logs, not just a calculator.
October 31, 2011 by BJ

Algebra
Use properties of logarithms to find the exact value of each expression. Do not use a calculator. 8^log 8^5
April 7, 2013 by Kendall

trig identities
Find the exact value of cos (2theta) given csc theta = 8/3 and 0 < theta < pi/2
May 8, 2013 by Sean

pre calc
Find the exact value of sin(x-y) if sinx=-3/5 in Quadrant III and cosy=5/13 in Quadrant I.
May 21, 2013 by Jennifer

trig
if (-12,5) is a pointon the terminal side of an angel 0 find the exact value of six trig funcation of 0
June 19, 2014 by sal

physics
a 700 N man stands on a scale on the floor of an elevator. The scare records the force it exerts on whatever is on it. What is the scale reading if the elevator has an acceleration of 1.8 m/s squared up ? I need help with what formula (s) to use to get the answer. I didnt ...
February 5, 2010 by courtland

Physics * (Wht am I doing wrng? answ provided)
A 6 kg block slides on a horizontal frictionless surface with a speed of 1.5 m/s . It is brought momentarily to rest when it hits a bumper that compresses a spring. The acceleration of gravity is 9.8 m/s2 .How much is the spring compressed if its force constant is 7 kN/m? ...
March 11, 2011 by cr

Precalculus
I know I posted this already but.. I don't understand what exactly is the answer, since the answer key shows the intersection of the circle and hyperbole at (-5,0) What about (7.5,0)???? By the way the graph has one intersection point... How do you know the correct answer???? ...
May 24, 2014 by Anonymous

Economics- Micro
You have an option to hire 2 hunters. The first hunter is able to kill two deers in an hour, the other hunter is able to kill one deer in an hour. Do you, without a doubt, hire the first hunter because he has an aboslute advantage? My question is that as there is only one ...
October 4, 2007 by Samantha

Spanish Homework
Hi! I was wondering if someone can check my answers? Thanks! Directions: Respond correctly by using informal, formal, plural, and nosotros commands. 1.) Form the command for a friend: Don't come. My answer: No vengas. 2.) Form the command using the correct pronoun/s: Let's ...
January 30, 2015 by Debbie

trig
How do I solve this? If cos x= 3/5, find the exact value of cos 2x
December 1, 2008 by Paul

Math
Find the exact value of Sin^-1(sin(13pi/15))
March 14, 2011 by Kelly

Statistics
Given the following information, determine the 68.3 percent, 95.5 percent, and 99.7 percent confidence intervals. overbar above X equals 4.33 comma SE sub m equals 3 I would appreciate it extremely if someone would help me figure this out. I honestly have no idea how to do ...
November 24, 2013 by Anonymous 11/24/13

pigskin geography
Here is the question, The Wonders of American stamp series informs us the American bullfrog is the largest frog,and perhaps the loudest. Their bodies grow to what size?___inches. Their calls can be heard how far away ____miles. I got the answer to the first part.. 6inches but ...
October 14, 2006 by Lanna

Math
How would you estimate using fractions to find the percentage of a number. For example: 28% of 48.
November 16, 2010 by Nicole

math
front-end estimation to find and estimate for 4,381+321+6,918
August 23, 2011 by stephanie

MATH: Need help please
Find the linear approximation of f(x)=\ln x at x=1 and use it to estimate ln 1.12. L(x)= . ln 1.12 approx
November 1, 2014 by Anonymous

math - APR
Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,650 with factory and dealer rebates of $5,100 a-Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the nearest cent. b-Find the ...
June 10, 2014 by Silvia Kay

math,correction
Find length x in each triangle. Express your answer in simplified radical form. leg 1 = 8 leg 2 = x hypotenuse = 12 MY answer: so x = ã80 I got √80 or appr. 8.94 yes the symbol is a radical. also since the directions say to leave as a radical form then i just leave it ...
March 24, 2007 by jas20

math-inequalities
I really don't understand this stuff for example: 9b-3b+34<2b-10 and 7a+3=24 letters represent variables so they can be anything really. Once you understand this step then the rest of the problem can start to make sense. Inequalities tell you whether something is greater/...
February 28, 2007 by Paige

Need someone to check
It is known that about 20% of car insurance policies include emergency road service. Suppose we randomly select 10 car insurance policies. What is the probability that at least one policy will have emergency road service? Answer 0.6242 0.3758 0.8926 0.2684 0.1074 What is the ...
February 9, 2011 by Anonymous

chem. re+asap!
I got the rest, I just need help on the last one. My first post is down on this page. 6th one:I dont know how to write the equation. It would be acid over base but which is the acid and which is the base? My answer: I got the Ka to be 2.7x10^-1. The equation I got was: C6 H 5 ...
June 19, 2006 by hey.

English
I need to write speaker notes for a presentation. Does this mean bullets? I know that they can be short or long, but my instructions say to write speaker notes and I am confused about the exact definition of speaker notes? Is there an exact definition?
May 10, 2008 by Sara

socials
ms. sue i actual still need help on first question because i read again and i not think i need to mention some info in this answer and sorry i reword it wrong it have to be this. i add not in there there have to be no not. how has burden of debt in develop countries prevent ...
January 12, 2012 by Mohammad

CHEM
The electron from a hydrogen atom drops from an excited state into the ground state. When an electron drops into a lower-energy orbital, energy is released in the form of electromagnetic radiation. Part A: How much energy does the electron have initially in the n=4 excited ...
November 4, 2007 by K

Physics
If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do not reflect negative ...
November 7, 2012 by Alexis

inequity question
Can someone show me how to solve the inequality below? -5(x + 4) > 3(x - 4) To solve, treat it as you would an equation. First, multiply each side out, then get the numerical terms on one side and the x terms on the other. I hope this helps. Thanks for asking.
May 29, 2007 by Christian

Chemistry
Can someone please answer one of these question so I would be able to know how to do the others? 1. What volume of 0.275 M KOH (aq) must be added to 75.0 mL of 0.137 M H3AsO4 (aq) to reach (a) the first stoichiometric pony; (b) the second stoichiometric point 2. What volume of...
March 22, 2015 by Anonymous

Physics with work, pls help
A proton is moving in a circular orbit of radius 11.8 cm in a uniform magnetic field of magnitude 0.232 T directed perpendicular to the velocity of the proton. Find the orbital speed of the proton. Answer in units of m/s. I came up with .118/2.83x10^-7 and it was incorrect. (...
April 15, 2011 by cr

math problem check
would some one please see if I am correct with these problems 1.Add. write the answer in simpliest form. 3/11 + 9/11 + 1/11= 13/11= 1 1/2 2. Subtract write the answer in lowest term. 19/24 - 7/24= 12/24 = 1/2 3. Victor owned 9/10 of a family business he sold 2/5 of the ...
January 6, 2007 by carrie

history
which belief was held by most Progressives? a. the government should own American industries b. Houseing and health care should remain private c. the government should protect agricultural interests d. the government should intervene in unfair business practices i'm not sure ...
March 28, 2009 by history

chem
What is the pH ( 3 significant digits) of a 0.01 M solution of sulfuric acid? Hint is that the first ionization constant is "large", and the second is finite, and the [H+] donated by the second equilibrium depends upon the amount of [H+] already donated by the first ionization...
March 26, 2008 by lyne

physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

math
Using the numbers 1 through 9 with no repeats, find a 9 number such that: the first digit is divisible by 1, the first two digits are divisible by 2, the first 3 digits are divisible by 3, and so on until we get to a 9 digit number divisible by 9. You might try, for example, ...
October 25, 2012 by maddi 5

Math \ Algebra
Hello! Can you check my answers for these questions? Thank you in advance (= 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11), (14, 15), (8, 10), (9, ...
January 27, 2015 by Wendy

Math
Hello! Can you check my answers for these 4 worksheet questions? Thank you in advance (: 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11), (14, 15), (8...
January 28, 2015 by Allison

French
Could you please check these thanks. Directions: Récrivez les phrases d'après le modèle. modèle: Il est parti? Oui, il vient de partir. 1. Ils sont partis? Answer: Oui, il viennent de partir. 2. Vous avez tous fini? Answer: Oui, vous venez de finir. 3. Elle est descendue? ...
November 12, 2010 by miami

physics (thxs again)
Thank you for the help :) A certain sample carries a current of 4A when the potential difference is 2V and a current of 10A when the potential difference is 4V. This samples is: a) obeys ohm's law b) has a resistance of 0.5 ohms at 1V c) has a resistance of 2.5 ohms at 1V d) ...
March 14, 2007 by susan

math check
1.find the area heigh 5ft width 8 ft A=H x W A= 5ft x 8Ft A= 40ft^2 2.The circular surface of a table has a diameter of 4 ft. What it will cost to have the top refinished if the company charges $5.00 per square foot for the refinishing ? Use 3.14 for pi and round your answer ...
January 6, 2007 by tammy

math
In my math book i got a question that said 1/7 times 1/7. I got answer of 2 if my answer is not right can you show me how to do the problem.If my answer is correct still show me how to do the problem
June 30, 2012 by Americal

Urgent: Spanish, Check Answers Please
6)Claudia y María ____________________ de México. Choices: Somos, Eres, Son, Es The answer is NOT Son or Somos My Answer: Es 9) Nosotros ____________________ mexicanos. Choices: Soy, Eres, es, Somos, Son The answer is NOT SOn, Soy, Somos My Answer: Eres
September 9, 2014 by Katt

chem
Mass of tablet: 1.4930g Volume of HCL added: 100ml Find the milimoles of HCL added I have many questions similar to this, could someone explain how to do this...do I just find the # of moles regularly and multiply by 1000? any help would be much appreciated
October 16, 2007 by Alexa

Pre Calculus
As x increases from p/4 to 3p/2, the value of sin(x) : A.increases throughout the interval B.decreases at first, then increases C.increases at first, then decreases D.decreases throughout the interval E.none of the above please explain why the answer is as it is, I dont ...
September 11, 2010 by Jack

urgent!!!words questions
I have alot of questions here but you don't have to answer them all but please help me!They are due on 24/6/05. The male of mare? The citizens of Paris,Netherlands,New Zealand or Malta? The collection name for cattle,wolves,lions,elephants or whales? What animal make a sound ...
June 22, 2005 by Sandy

physics
An athlete at the gym holds a 4.33 kg steel ball in his hand. His arm is 68.7 cm long and has a mass of 4.69 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? I got an answer of 45 N*m (which is ...
October 15, 2008 by Adam

trig
use the function G(x)=x^3-8x +1 b) identify and verify the y intercept of G c) estimate the zeros of G to the nearest tenth d) estimate the coordinates of the relative extrema of G to the nearest hundredth e)in what intervals is G positive? Negative? f) in what intervals is G ...
November 12, 2008 by jerson

circuits
For the transfer function Tv(s)=[10(s+5)(s+20)]/[(s+1)(s+100)] is this a low-pass, high-pass, bandpass or bandstop function? estimate the corner frequency(ies) estimate the passband gain what is the output if v1(t)=10cos(1000t+45deg) V??
April 20, 2009 by alice

algebra 1
What is the third term of a recursive sequence that follows the pattern x - 7 and has a first term x = 100? May somebody explain the answer and how they got it? Thank you so much
January 16, 2010 by rachel

History
Which West African kingdom was the first to benefit from the gold and salt trade? Ghana Songhai Mali Morocco My answer is Ghana.
October 25, 2012 by S

vocabulary
The story of the men who first climbed to the top of Mount Everest is a(n) (facet / epic) of human courage and strength. answer: facet
September 3, 2013 by cici

Business Maths
Molly Ellen, bookkeeper for Keystone Company, forgot to send in the payroll taxes due on April 20. She sent the payment November 12. The IRS sent her a penalty charge of 10% simple interest on the unpaid taxes of $4,600. Calculate the penalty. (Remember that the government ...
April 23, 2012 by Ekanki

math
461,592 x 308 _________ 3592736 + 13947760 ___________ 142,070,336 What is the first number that is incorrect in the work above? Please answer and explain.
January 29, 2013 by Anonymous

math
I don't think my first response went thru...so reposting! Thank You Ms. Sue, for the answer to cubic inches (11/16/14). It also made me realize that I skipped the step of multiplying the dimensions by each other.
November 18, 2014 by Matt

trig
Ok so I have a right triangle with the hypothenuse = to 5, one side =3 and the other =4 and X is the angle between the hypothenuse and the side that =3. I'm supposed to find the sin, cos, tan, cot, sec, csc of X. I can't seem to get the answer for the sec and csc. If sin(x)=4/...
September 14, 2008 by Natash

Physics
A curve of radius 40 m is banked so that a 1070 kg car traveling at 60 km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. The acceleration of gravity is 9.81 m/s a)Find the minimum speed at which a car can travel ...
March 2, 2011 by Johnnie

Calculus
Determine whether the integral is divergent or convergent. If it is convergent, evaluate it and enter that value as your answer. If it diverges to infinity, state your answer as "INF" (without the quotation marks). If it diverges to negative infinity, state your answer as "...
October 22, 2010 by Hannah

Science 7R
15. Which type of reproduction leads to daugther cells that are identical to the parent cell? Cloning? My Answer: Asexual Reporduction 16. Is this process called mitosis or meiosis? My Answer (that I think): Mitosis 17. Which type leads to a mix of genetic information in the ...
January 18, 2012 by Laruen

math
Find the exact length of the curve analytically by antidifferentiation. You will need to simplify the integrand algebraically before finding an antiderivative. 1. y = (1/3)(x^2 + 2)^(3/2), from x = 0 to x = 3 and 2. x = (y^3)/3 + 1/(4y), from y = 1 to y = 3 [HINT: 1 + (dx/dy)^...
February 4, 2008 by todi

pre calculus
Having a bit of a problem with this for the given functions f, g and h. find f*g*h and state the exact domain of f*g*h Please show all your work f(x) = inx g(x) = x -169 h(x) = 9x^2
December 21, 2011 by Amy

math
two drums contain 600lts. and 800 lts. of water . find the size of the largest vessel that can be filled an exact number of times from each drum.
August 19, 2012 by sumit

trig
Find all solutions of cos (x) + 1/2 sec (x) = -3/2 in the interval (2pi, 4pi) (Leave your answers in exact form and enter them as a comma-separated list.)
July 31, 2013 by Holly

Trigonometry
Find all solutions of 4(sin(x)**2)-8cos (x) -8 = 0 in the interval (2pi, 4pi). (Leave your answers in exact form and enter them as a comma-separated list.)
July 31, 2013 by Holly

Math
Suppose that è is an angle in standard position whose terminal side intersects the unit circle at ((-15/13),(12/13)). Find the exact values of cscè, tanè, and sinè.
April 17, 2014 by Nick

algebra 2
Hi i posted this question: the general expression for consecutive multiples of 6 is 6N, 6(N + 1), 6(N +2), etc. find three consecutive multiples of 6 such that 4 times the first exceeds twice the third by 12. and than Bobpursley replied: Let N be the first, so n+1 is next, etc...
July 18, 2007 by lana

Precalculus
Could someone help/verify these answers~ Thanky you! 1.What is the range of the reciprocal function of f(x)=10-x^2? a) {YER|y≥1/10} b) {YER|y≥10} c) {YER|1/10≤y<0} d) YER|y<0 or y≥1/10} Answer: D? ---------------------------------------- 2. It ...
January 10, 2012 by Jake

Technology
Short answer question #23. Briefly explain the four stages of making an expendable mold casting. My answer: There are four stages in making an expendable mold casting. The first is making the pattern. In the second step, the pattern is surrounded with sand or plaster. During ...
January 28, 2010 by y912f

Technology
Short answer question #23. Briefly explain the four stages of making an expendable mold casting. My answer: There are four stages in making an expendable mold casting. The first is making the pattern. In the second step, the pattern is surrounded with sand or plaster. During ...
January 30, 2010 by y912f

math
is this correct? 6k-9=15 k=4 I just want to know if i did it right yes you are correct You didn't show your work so I don't know if you did it right or not. Your answer is correct. i did 9=15 which equal 24 and i divided that by 6 which =4 so k must equal 4..........did i do ...
November 7, 2006 by hilary

trig
1. 3cot^2 (x) - 1 = 0 My answer: pi/3, 2pi/3, 4pi/3, 5pi/3 2. 4cos^2 (x) - 1 = 0 My answer: pi/3, 2pi/3, 5pi/3, 4pi/3 3. 2sin (x) + csc (x) = 0 My answer: unknown lol i got to the part: sin^2 (x) = -1/2 4. 4sin^3 (x) + 2sin^2 (x) - 2sin^2 (x) = 1
May 9, 2008 by Wanda

math
(4-y^2)/(y-2) = y/2 (4-y^2)/(y-2) = y/2 4 - y^2 = (y*(y-2))/2 4 - y^2 = (y^2-2y)/2 8 - 2y^2 = y^2 - 2y 3y^2 - 2y - 8 = 0 (keep the above equation in mind) quadratic formula: (-b +/- sqrt(b^2 - 4ac))/2a now solve by plugging in the appropriate numbers and choose (normally) the ...
October 30, 2006 by math

calculus
Hi i have two questions: what is the exact value of cos 5(pie)/12? what is the exact value of cos2(pie)/9 cos(pie)/18 + sin2(pie)/9 sin(pie)/18? thank you
May 8, 2013 by Maria

Physics
An electron passes location <0.02m, 0.04m,−0.06m>, and 4 μs later is de- tected at location <0.02 m, 1.84 m,−0.86 m>. Find the average velocity of the elecron: ¯v = <vx, vy, vz> If the electron continues to travel at this av- erage velocity, ...
January 19, 2014 by NADIA

Literacy
Please check my work. Thank YOU! 1. Journals differ from magazines in that they’re A. Printed with volume numbers. B. Published only periodically. C. Available by subscription. D. Sources of academic research not intend for the general publish. ANSWER #1 is D 2. The Atlas of ...
August 23, 2011 by Jen

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