Questions Asked on
March 19, 2011

Physics
In the figure, a chain consisting of five links, each of mass 0.100 kg, is lifted vertically with constant acceleration of magnitude a = 2.50 m/s2. Find the magnitudes of (a) the force on link 1 from link 2, (b) the force on link 2 from link 3, (c) the
asked by Sarah 
English
just can't figure these sentences out. have to rewrite these sentences, correcting the problem of incorrect omission.? 1. A liberal arts background is excellent for such professions as lawyers and doctors. 2. American colleges consistently produce more
asked by Ann 
chemistry
What temperature is required to produce a carbon dioxide partial pressure of 1.0 ? BaCO3¡êBaO + CO2
asked by vince 
calculus
how do you separate these variables dy/dx=4sqrt(y)lnx/x, y(e)=9
asked by may 
mete
Three point charges lie along a circle of radius r at angles of 30°, 150°, and 270° as shown in the figure below. Find a symbolic expression for the resultant electric field at the center of the circle.
asked by Mina 
algebra
13x+11y=70 11x+13y=74
asked by simultaneous 
chemistry
How many mol of Oxygen are in 45.9 grams of CO2?
asked by Anonymous 
Chemistry
I have two questions: 1. A sample of 10.7 g of CO reacts completely with O2 to form CO2. How many grams of CO2 will be formed? 2. Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2 g of ammonia are reacted with
asked by Lauren 
calculus
find an equation of the curve that satisfies dy/dx=4x^3y and whose yintercept is 7
asked by matthew 
physics
A rectangular container measuring 24 cm 48 cm 55 cm is filled with water. What is the mass of this volume of water in kilograms?
asked by Beth 
math
John's specialty store uses a perpetual inveentory system. the following are some inventory transaction for the month of may 2009. John's purchased merchandise on account for $5,000. Freight charges of $300 were paid in cash.John's returned some of the
asked by Bobbi Loffredo 
Calculus
Luke and Leia are trapped inside a trash compactor on the Death Star. The side walls are moving apart at 0.1 m/sec, but the end walls are moving together at 0.3 m/sec. The volume of liquid inside the compactor is 20 cubic meters, a constant. Write an
asked by Amanda E. 
Chemistry
How many grams of SO2 can be produced from 100g of S and excess O2
asked by Mo 
PHYSICS
WHAT TYPE OF MIRRORS ARE USED IN A PERISCOPE(CONCAVE, CONVEX?) ALSO,DRAW A RAY DIAGRAM OF A PERISCOPE
asked by ADAM 
math/ geometry.
the vertex angle of an isoceles triangle is 120. the base length is 18. what is the length of the altitude to the base in simplest form
asked by Juleana 
Spanish
? Select the number which best completes this sequence: 200, 400, 600 A. ochocientos
asked by anon 
chemistry
Concentrated nitric acid is 16M. What volume of nitric acid must be diluted must with distilled water to prepare 5L of 0.1M nitric acid?
asked by please help 
Chemistry (repost)
Determine the volume of 0.240 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is shown below. H2SO4(aq) + 2 KOH(aq)> K2SO4(aq) + 2 H2O(l) a) 26 mL of 0.240 M H2SO4 b) 143 mL of 0.14 M
asked by Rebekah 
physics
Three point charges lie along a circle of radius r at angles of 30°, 150°, and 270° as shown in the figure below. Find a symbolic expression for the resultant electric field at the center of the circle.
asked by Mina 
Physics
A wheel with radius R, mass m, and rotational inertia I rolls without slipping across the ground. If its translational kinetic energy is E, what is its rotational kinetic energy?
asked by John 
trig
For each expression in column I, choose the expression from column II to complete an identity: Column I Column II 1. tanxcosx A. sin^2x/cos^2x 2. sec^2x1 B. 1/sec^2x 3. sec x/cscx C. sin(x) 4. 1+sin^2x D.csc^2xcot^2x+sin^2x 5. cos^2 x E. tanx I figured
asked by gin 
calculus
A rancher has 1000 feet of fencing with which to enclose two adjacent rectangular corrals with a interior partition (consider as one pen). Use calculus to determine what the external dimensions of the pen that will maximize the enclosed area. Write your
asked by Anonymous 
Physics
A 3 Kg lead ball is dropped into a 3 L insulated pail of water initially at 20.0 degrees C. If the final temperature of the waterlead combination is 25 degress C, what was the initial temperature of the lead ball?
asked by Kelsey 
algebra
Lisa studies 8 hrs. for a particular test and gets a score of 78. at this rate how many hours would she have to study to get a score of 98?
asked by Kim 
geometry
The equal sides of an isosceles trapezoid each measure 5, and its altitude measures 4. If the area of the trapezoid is 48, find the lengths of its bases.
asked by Tracy 
Algebra
Michael invested his savings in two investment funds. The amount he invested in Fund A was $2,000 less than the amount he invested in Fund B. Fund A returned a 4% profit and Fund B returned a 3% profit. How much did he invest in Fund A, if the total profit
asked by B 
Physics
A figure skater spins on the ice, holding two weights a distance d from the axis about which he is rotating. At a certain time, he pulls these weights toward his body as shown, causing his rotational inertia to decrease by a factor of 2. How does this
asked by John 
physics
A race car is making a Uturn at constant speed. The coefficient of friction between the tires and the track is μs = 1.0. If the radius of the curve is 40 m, what is the maximum speed at which the car can turn without sliding? Assume that the car is
asked by HELP!!!! 
math
ethan had $8 more than dakota. ethan then gave 1/4 od hia money to dakota. the ratio of money ethan had to the money dakota had then became 5:7. howmuch money did ethan give to dakota
asked by Eve 
science
Describe one region of the world where this hypothetical isotherm pattern is actually observed.
asked by malik 
Physics
A ball rolls along a horizontal frictionless surface without slipping toward and incline. The ball moves up the incline a certain distance before reversing direction and moving back down the incline. In which of the following situations does the ball
asked by John 
Psychology
Which one of the following statements about the gatecontrol theory is true? Pain impulses create a gate leading to the brain. The brain is capable of generating pain on its own. The gate closes when pain messages go to the brain. Damage to small nerve
asked by Chloe 
physics
speedway turn, with radius of curvature R, is banked at an angle θ above the horizontal. (a) What is the optimal speed at which to take the turn if the track's surface is iced over (that is, if there is very little friction between the tires and the
asked by Hard to solve ..please help!!!! 
physics
A ball of mass m = 0.2 kg is attached to a (massless) string of length L = 3 m and is undergoing circular motion in the horizontal plane, as shown in the figure. What should the speed of the mass be for θ to be 46°? What is the tension in the string?
asked by laila 
Psychology
The "face module," located in the right temporal lobe of the brain, explains why: the cells fire when a dog lover looks at pictures of show dogs. infants are not afraid to go to strangers. ganglion cells in this area respond to simple features. we need
asked by Chloe 
FRUSTRATIONS OF PROGRESS;CHAOSAND COMPLEXITY
One of the greatest lasting social changes of the development of mass armies was the A. breakup of aristocracies. B. creation of national identities. C. complete militarization of European society. D. development of the idea of "total war."
asked by Anonymous 
computer science
9.16 Consider a system that uses pure demand paging. a. When a process first starts execution, how would you characterize the page fault rate? b. Once the working set for a process is loaded into memory, how would you characterize the page fault rate? c.
asked by Anonymous 
Spanish
Each of the Spanish sentences below is incorrect in either grammar or meaning. Rewrite each sentence correctly. 1.La princesa todavía canta. The princess used to sing. my answer: La pincesa cantaba. 2.¿Con quién llora la reina? Who does the queen sing
asked by anon 
physics
A hot stell ball of mass 1 kg is dropped into a 4 L bucket of water at room temperature (70 degrees F). If the system reaches an equilibrium temperature of 320 K, what was the initial temperature of the steel ball before it was dropped into the water? Cp
asked by Meghan 
physics
two equal mass cars collide head to tail and their bumpers lock. One car has a velocity of 10m/s and the other is at rest. what is the velocity of the two cars after the collision?
asked by Jenn 
Chemistry
How many grams of water vapor (H2O) are in a 10.2 liter sample at 0.98 atmospheres and 26°C? Show all work used to solve this problem.
asked by Victoria Ann 
Math
John's Specialty Store uses a periodic inventory system. The following are some inventory transactions for the month of May, 2009.
asked by Bobbi Loffredo 
physics
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 2.6 x 107 C/m2, and the plates are separated by a distance of 1.4 x 102 m. How fast is the electron moving just before it
asked by Amy 
chemistry
If 74.5 grams of a hot metal was added to 56.4 grams of water and the temperature of the water rose from 20.4 to 33.4 degrees, how many KJ of energy was lost by the hot metal?
asked by katie 
management
What factors account for the resurgence of interest in OSCM today?
asked by Anonymous 
chem
What mass of NaCl is required to precipitate all the silver ions from 19.2 mL of 0.100 M AgNO3 solution?
asked by Sara 
Physics
A cylinder (I = 1/2 MR2), a sphere (I = 2/5MR2), and a hoop (I = MR2) roll without slipping down the same incline, beginning from rest at the same height. All three objects share the same radius and total mass. Which object has the greatest kinetic
asked by John 
Spanish
I'm not sure if this is the proper way to write the numbers in spanish . can you correct any mistakes please. 6. dos x cien = doscientos 7. tres x cien = trescientos 8. cinco x cien = quinientos 9. ocho x cien = ochocientos 10. nueve x cien = novecientos
asked by anon 
chemistry
What is the molar concentration of calcium hydroxide that has 0.185g solute in 100ml solution?
asked by please help 
CHEMISTRY
Concentrated HCI is 12M. What is the molarity of an HCI solution prepared by diluting 10ml concentrated HCI to a total volume of 250ml?
asked by please help 
chem
What is the molarity of ZnCl2(aq) that forms when 15.4 g of zinc completely reacts with CuCl2(aq) according to the following reaction? (Assume a final volume of 175 mL.) Zn(s) + CuCl2(aq) > ZnCl2(aq) + Cu(s) I got the moles of Zn but don't know what to
asked by Rebekah 
Biology
How does the structure of macromolecules such as proteins act as an index of relatedness between species?
asked by Brittney 
algebral
What is the electromagnetic flux coming from the surface of a 5000K blackbody? I am supposed to use maxwells equation.
asked by james 
separation of variables
solve the initial value problem by separation of variables dy/dx=x2/y given y=5 when x=3
asked by seth 
physics
two equal mass cars collide head to tail and their bumpers lock. One car has a velocity of 10m/s and the other is at rest. what is the velocity of the two cars after the collision?
asked by Jenn 
trig
{Given: cos(A)=\frac: sqrt{203}/{18} {Find: tan(A) Find the positive value of the above in simplest radical form.
asked by bbee 
math
Find the GCF of the numbers using an appropriate method. 240, 10,000, and 4500 Find the prime factorization of the number, and write it in exponent form. 670 Find the LCM for the given numbers by an appropriate method. 24, 54, and 27
asked by anonymous 
english
The Lady of Shalott I have an event and have to find the quotation. 1) The handsome, dazzling figure of Sir Lancelot rides by in his shining armour. The Lady sees him in the mirror and can no longer bear her imprisonment. The quotation I think it is, is: A
asked by george 
physics
A particle is moving clockwise in a circle of radius 1.75 m. At a certain instant, the magnitude of its acceleration is a = a = 39.0 m/s2, and the acceleration vector has an angle of θ = 50° with the position vector, as shown in the figure. At this
asked by HELP!!!! 
Elements of Statistics
the world health organization's center of aids research is planning to write a report on aids infection among drug users all of the world. in a recent study conducted on 1,000,000 drug users, 52% indicated that they are using heroin on regular basis, 37%
asked by Tina 
math
1)Find the sum of the first eight terms of the Geometric progression 256,128,64,32 2)How many terms should be taken from the Geometric progression 4,12,36 for the sum to be 2188
asked by la bellgoss 
Spanish
Each of the Spanish sentences below is incorrect in either grammar or meaning. Rewrite each sentence correctly 1. El rey que canta está tocando el tambor. The king that used to sing is playing the drum. Can you check my answer: El rey que cantaba está
asked by anon 
Algebra 1
Two angles are complementary. The sum of the measures of the larger angle and three times the measure of the smaller angle is 114. What is the measure of each angle?
asked by ekam 
English
Do you think the last sentence links to intolerance, and do you think this paragraph makes sense? The only figurative device that is completely and effectively used in Night is firstperson perspective. The use of first person conveys the incidents Wiesel
asked by KK 
Chemistry
2g NaHCO3 + .6 mL HCL > NaCl+CO2+H2O How much carbon dioxide do I get? How do I find out?
asked by Michelle 
math/ geomery
the diagonals of a rhombus have lengths 4 and 12. what is the length of a side in simplest form.
asked by Juleana 
Physics
A figure skater spins on the ice, holding two weights a distance d from the axis about which he is rotating. At a certain time, he pulls these weights toward his body as shown, causing his rotational inertia to decrease by a factor of 2. How does this
asked by John 
physics
Suppose the vertical loop has a radius of 8.92 m. What is the apparent weight (Wap) of a rider on the roller coaster at the bottom of the loop? (Assume that friction between roller coaster and rails can be neglected. Give your answer in terms of m and g.)
asked by Hard to solve ..please help!!!! 
PreCalculus
Writing to Learn: In a certain video game a cursor bounces back and forth horizontally across the screen at a constant rate. Its distance d from the center of the screen varies with time t and hence can be described as a function of t. Explain why this
asked by Taylor 
math
motorcycle race 1 lape=750m. at the start gina sets off 4 sec. after tom but drives the motorcycle 3.5m/s fasteran finishes in 2.5sec. sooner then tom. at what speed was gina driving?
asked by Anonymous 
Geography
Does Russia grow sugar beets or Ukraine?
asked by Alyonka 
calculus
The USPS will not mail a package if the sum of its length and its girth (measuring around the package) exceed 108 inches. Determine: (a) The volume of the package as a function of its radius r. (b) For which radius r is the volume of the package a maximum?
asked by Anonymous 
DNA + Genetics
During the menstrual cycle, the ovarian steroid hormones estrogen and progesterone control a dramatic transcriptional reprogramming of endometrial stromal cells (ESCs) leading to a receptive state for blastocyst implantation and the establishment of
asked by Lena 
separation of variables
how do you separate these variables dy/dx=1/y^2, y(0)=4
asked by may 
chemistry
Concentrated HCI is 12M. What is the moloarity of an HCI solution prepared by diluting 10ml concentrated HCI
asked by please help 
math
If two cars leave at the same time and are traveling in opposite directions, one car at 50 and the other at 55. How far away from each other will they be after 1 hours?
asked by sam 
math
Find the value of the missing digit that makes the statement true. 214,21_ is divisible by 11 Determine whether the statement is true or false. Why? If a natural number is divisible by 5 and 2, then it must also be divisible by 10.
asked by anonymous 
Chemistry
2g NaHCO3 + .6 mL HCL > NaCl+CO2+H2O How much carbon dioxide do I get? How do I find out? I got 410 mL of CO2, is this correct?
asked by Michelle 
Physics
A cylinder ( I = 1/2 MR2), a sphere ( I = 2/5 MR2), and a hoop ( I = MR2) roll without slipping down the same incline, beginning from rest at the same height. All three objects share the same radius and total mass. Which object has the greatest
asked by John 
MATH
WHAT IS EQUIVALENT TO 11/3?
asked by AD 
trig
draw the graph of 4sin(x+30) and 2+tanx for values of x from 0 degree to 360degree and obtain the solution within the range of the equation 4sin(x+30)tan x=2
asked by mohamed kantabulah 
calculus
how do you solve the initial value problem by using separation of variables dy/dx=1/y^2, y(0)=4
asked by billy 
calculus
how do you solve the initial value problem by using separation of variables dy/dx=1+x/(sqrt of y), y(2)=9
asked by billy 
calculus
solve the initial value problem by separation of variables dy/dx=x^2y^2, y(4)=4
asked by sally 
separation of variables
if dy/dx=3y and y=1 when t=0, what is the value of t for which y=1/3?
asked by catherine 
Geography
Which river might be used to transport materials mined near Irkutsk to manufacturing centers?
asked by Alyonka 
chemistry
Abstract 4 chemistry of starch
asked by Falayi 
Physics
Please heeelp!!! A 65.0 kg diver is 2.10 m above the water, falling at speed of 6.70 m/s. Calculate her kinetic energy as she hits the water. (Neglect air friction)
asked by Ly 
English
I'm also noticing that theres some sort of problem with this paragraph but I...I don't know. Like im nots sure if its the right example and if it links to intolerance. The only figurative device that is completely and effectively used in this text is first
asked by KK 
Math
the original problem was: (sin x + cos x)^2 + (sin x  cos x)^2 = 2 steps too please I got 1 for (sin x + cos x)^2 but then what does (sin x  cos x)^2 become since it's minus?
asked by Amy 
MUSIC
How was the life style of buddy bolden and some ups and downs?describe some interesting things about the life of jelly roll morton?
asked by SUBORNA 
Physics
A uniform solid disk of radius 1.7 m and mass 81.3 kg is free to rotate on a frictionless pivot through a point on its rim. If the disk is released from rest in the position shown by the solid circle, what is the speed of its center of mass when the disk
asked by Jennifer 
Physics
Two sounds have measured intensities of I1 = 100 W/m2 and I2 = 300 W/m2. By how many decibels is the level of sound 1 lower than that of sound 2?
asked by Jane 
Calculus
ok so apparently there's no way to express integral f(x)dx in standard mathematical functions... which I don't exactly buy... but ya the issue came up when I was trying to evaluate integral x  2dx and apparently this is correct integral x2dx = 2 
asked by Joe 
Math
Sandy is making curtains from fabric that is 44 inches wide. Her curtain pattern is 27 inches long and 44 inches wide. How many yards of fabric will she need to make 5 curtains?
asked by Carlyn 
english
Write 9 sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. im so confused
asked by michael 
Spanish
The following paragraph describes what some may consider to be a typical North American tourist. It reflects one opinion only. North Americans whovisit foreign countries do not commonly fit this description. Read the paragraph. Then write your answersin
asked by anon 
Sacramento city college
When a vacuum is pulled on the water with a 29.4 in.Hg,What is vapor created for each pound of water removed in cubic feet?
asked by Eric 
PHYSICS
If Superman is flying at mach 4, 1 km above the ground and yells "Hey! Finish your test!" from directly overhead, what does it sound like when you finally hear him? Superman travels slower than light and therefore you don't hear him until he is 4.1231
asked by Gabby 
bubba
Find the GCF of the numbers using an appropriate method. 240, 10,000, and 4500 Find the prime factorization of the number, and write it in exponent form. 670 Find the LCM for the given numbers by an appropriate method. 24, 54, and 27
asked by anonymous 
Calculus
ok so apparently there's no way to express integral f(x)dx in standard mathematical functions... which I don't exactly buy... but ya the issue came up when I was trying to evaluate integral x  2dx and apparently this is correct integral x2dx = 2 
asked by Joe 
astronomy
What is the electromagnetic flux coming from the surface of a 5000K blackbody?
asked by james 
history
I read up on most of the information concerning this subject, and I still need help. Japanese Internment When President Roosevelt issued Executive Order 9066 on February 19, 1942, he authorized the evacuation of JapaneseAmericans from the West Coast. Why
asked by David 
chemistry
determine the quantity of NaOH whose concentration is 15% to neutralize 176g H2SO4 , this is the exact problem and no its not an experiment.
asked by auro 
proper fraction to mixed number
The instructions say to convert 3/4  1/8 to a mixed number the answer I have is 5/8 Can you convert a proper fraction to a mixed number ?? Suzanne
asked by Suzanne 
chem.
determine the quantity of NaOH whose concentration is 15% w/v to neutralize 176g H2SO4 , this is the exact problem and no its not an experiment. sorry to bother someone of you
asked by auro 
Physics
A figure skater spins on the ice, holding two weights a distance d from the axis about which he is rotating. At a certain time, he pulls these weights toward his body as shown, causing his rotational inertia to decrease by a factor of 2. How does this
asked by John 
SCIENCE
is the value of g independent of mass?
asked by TERRIE 
separatio of variables
solve the initial value problem by separation of variables dy/dx=6x^2y and y(0)=4
asked by seth 
math/geometry
in a right triangle the adjacent is A = 4, the oppisite is B = 5, then what is the hypotenuse C.
asked by Juleana 
Geometry
in a right triangle if the adjacent A = 16, and the hypotenuse C = 20 then what is the oppisite B.
asked by Cassandra 
math
in a right triangle if the oppisite B = 2 times 5 squared, the adjacent A = 5 squared, then what is the hypotenuse C?????????
asked by Lucy 
calculus
solve the initial value problem by separation of variables dy/dx=xy^2, y(1)=0.25
asked by sally 
separation of variables
solving the initial value problem by separation of variables dy/dx=(4(sqrt of y)lnx))/x, y(e)=9
asked by matthew 
separation of variables
find an equation of the curve that passes through the point (1,1) and whose slope at (x,y) is y^2/x^3
asked by catherine 
calculus
if f'(x)=2f(x) and f(2)=1, then f(x)= ?
asked by mark 
Math
1. the mystery shape has fawer than 3 lines of symmetry. 2. it has at least 1 pair of perpendicular sides. 3. it has at least 1 pair of parallel sides. 4. it has less than 1 obtuse angle.
asked by Rayna 
Algebra
Write 27/4 as a mixed number, I keep getting 6.75 but it does not seem correct, please confirm if it correct or if I am missing something.
asked by Jeannie 
math
integral of inverse root(8x+x^2)
asked by njiru 
Physics
A uniform board 12 ft long weighs 10 lbs. Two feet from the left is centered a 3 lbs. structure. How far from the left end is the balance point i.e. the point at which if you applied 13 lbs. upward force would balance the board and structure??
asked by Jenn 
math
a=c divided by7 b=a multiple of 5 less than 20 c= b divided by 6 d= a x c a = b= c= d=
asked by lexi 
chemistry
ok this problem has made me crazy , 15 % is w\v ok , so i just the m1 , the mass of naoh i don't need the volume , so ill reformulate the problem again , I need the mass of naoh with conc.15% w/v in 176 g h2so4 ok
asked by auro 
Physics
A ball starts from rest down a smooth (frictionless) 45 degree inclined plane 10 m above the floor. How fast will it be going when it reaches the floor?
asked by Rodney 
science
lena carried out an investigation to find the energy content in bacon rind she lit the bacon rind with a bunsen burner and held it beneath a test tube of water she stirred the water and recorded it temperature! why did lena stir before recording the
asked by ellen 
Biology Research
Hello, I have to analyse two research articles about how carbon dioxide affect plant growth. one of the questions I have to answer is to "compare the research approach" for the two articles. I am not completely certain what " research approach refers to"
asked by Moi 
algebra
I am confused with this. f(x) 1/4(x+9)^2+3 vertex, symmetry, and max. min. help please.
asked by Fred 
Math
The Vashi family has a 20gallon aquarium that is only 3/4 full. The family uses a 2quart pitcher to add water to the aquarium. How many times will the Vashis have to fill and empty the pitcher to completely refill the aquarium?
asked by Genecis 
physics
a satellite is in a circular orbit at a constant velocity around the earth. how much work is done on the satellite?
asked by Jenn 
Chemistry
Calculate the % by mass of sulphur in (NH4)2 SO4
asked by Hunsu bidemi 
math
Without calculating, comment on the statement 2 ∙ 24 ‚ 3 ∙ 23 An electrician needs 766 feet of 12gauge wire to do a wiring job. He has 140 feet of 12gauge wire in stock. How much more wire does he need? Decide whether or not the first number is
asked by anonymous 
Physics
A disk lying on the XY plane rinitially roates counterclockwise with a rotational speed of w0. After a time interval rt, the rotational speed has changed to wf moving in the clockwise direction. The average torque during this time interval is which of
asked by John 
Physics
The constant torque required to accelerate a disk (of rotational inertia I) from rest to a speed of f rotations per second in a time interval of t is:
asked by John 
PhysicsPlease check and I need help
Please help set this up A person goes into the electric field and has an object with a charge value of 4.2E6C. At a distance of 10m from the object that's responsible for the elctric field, the person sees a force of 8.0N on the object they have. What is
asked by Rachel Lynn C. 
physics
You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force, which acts perpendicular to the wings. When the plane is flying level, the upward lift
asked by please help!!!! 
Physics
Superman is a character from the DC Comics universe with superhuman abilities. One day in the city of Metropolis you look to the skies only to see Superman passing directly over your head as he races to save Lois Lane from some imminent threat. Not in too
asked by Ellie 
Geometry
The sides of a triangle have lengths of 3, 4, and 5. Find the area of the triangle.
asked by Tracy 
calculus
if dy/dx=ycos x and y=3 when x=0, then y= ?
asked by mark 
english
im studying for test and I am supposed to write about "what are gender roles, how do they effect,, influence, inform our conceptions of masculinity and feiminity. I especially don't get the femininty and masculinity part. Thanks and I appreciate ur help!
asked by Jessica 
politics
Which president closed the tunnel between his country and palestine? The tunnel was a secret passage way in which the palestinies got food and other helpful sources.
asked by Lily 
Algebra
Hello. I am trying to solve quadratic functions but I'm having difficulty understanding. Here is my work so far... y=3x^2 + 12x + 9 12/6 = 2 = y 3(2)^2 + 12(2) + 9 = 3 x=0 y=9 (0,9) Would I just plug in 1 and 2 for x and then reflect it while i'm
asked by David 
Math
how does sin^2xcos^2x =1 could someone explain or write down steps on how the left side becomes 1?
asked by Amy 
Algebra
Round 47,973 to the nearest 100 I keep thinking that it's 48,000, but I have no idea how to prove it
asked by Jeannie 
social studies
aword that describe an area that has one or feaures in common
asked by ricardo 
Algebra
8s^27t=0 Am I correct saying 2 real numbers?
asked by Fred 
Math
Divide and multiply. 1) 2 4/11(2) 2) 5 1/7 / 4 1/8
asked by Justin 
science
Why you think scientists probably want to leave what they do open to revision?
asked by Edward 
algebra
solve for y y^26y+9=25
asked by Fred 
algebra
f(x)=x^2+2x+24
asked by Fred 
Fractionseasy 5th grade
Multiply and divide. 1) 2 4/11(2) 2) 5 1/7 / 4 1/8
asked by Justin 
chem.
the problem requires the quantity of NaOH, this is what i don't understand what does it mean by quantity , the volume , the mass ,or the molar concentration ?? I have to use all the things that are give to the exerc. including the 15 % concentration of
asked by auro 
politics
what are some famous dictators that were either removed or killed and what did they do?
asked by Lily 
General
An advertisement has the best chance for success if it: is accompanied by loud music and rapid banter. is above threshold. contains a single subliminal message. contains a grouping of words repeated below threshold.
asked by Chloe 
History
On a website I was doing research on, there is a section about the Social Revolutionary Party in Russia in the early 1900s, which has point form information on the party. "Social Revolutionary Party: founded in 1901 catastrophic overthrow tsardom most
asked by Anonymous 
social studies
describe 2 details about the life of the Incas
asked by Drew 
Math
Solve 6x=x^2  6. Could someone give me the steps? Thanks
asked by Shadow 
biology
all test crosses are back cross. but all back crosses are not test cross. justify the statment
asked by sabrina 
Algebra
if a radius is 4x meters and its heights is 5x3 meters find its volume
asked by Mike