Questions Asked on
March 28, 2012

Algebra
What do you call it when somebody spends 20 years in the 24th row of a theater
asked by Chuck 
math
what problem did the dumb gangster have when the boss told him to blow up a car?
asked by matt 
physics
A hypodermic syringe contains a medicine with the density of water (figure below). The barrel of the syringe has a crosssectional area of 2.44 105 m2. In the absence of a force on the plunger, the pressure everywhere is 1.00 atm. A force vector F of
asked by greg 
chemistry
ammonium nitrate decomposes to N2O and water at temperatures between 250 C and 300 C. Write a balanced chemical reaction describing the decomposition of ammonium nitrate, and calculate the standard heat of reaction using the appropriate enthalpies of
asked by Tori 
Chemistry
The formaldehyde content of a pesticide preparation was determined by weighing 0.3124g of the liquid sample into a flask containing 50.0mL of 0.0996M NaOH and 50mL of 3% H2O2. Upon heating, the following reaction took place: OH + HCHO + H2O2 > HCOO +
asked by Ellen 
Chemistry
A 0.22caliber handgun fires a 27g bullet at a velocity of 765 m/s. Calculate the de Broglie wavelength of the bullet. Is the wave nature of matter significant for bullets?
asked by danielle 
Chemistry
For a system where: NH2OH + CH3NH3+ > CH3NH2 + NH3OH+ 95% 95% 5% 5% State of equilibrium in the system is described by the percentages given above.Which of the species above is the strongest acid in the system? My answer is CH3NH3+, is it correct?
asked by Meenaakshi 
chemistry
You extract the iron from a tablet and dilute that to 600.0 ml in a volumetric flask. You transfer 0.600 ml of this solution to a 75.0 ml volumetric flask and dilute this to volume. When you measure the concentration of this solution, you find that it is
asked by leigh 
Chemistry!
An excited hydrogen atom emits light with a frequency of 1.141x10^14 Hz to reach the energy level for which n=4. In what principle quantum level did the electron begin?
asked by danielle 
Math
Which member of Fred Ferd's Family thinks he's a pen? What did the boy tree say to the girl tree? Why did the Plum divorce the Grape?
asked by Brittney Hoang 
Chemistry
How much energy is needed to convert 90g of water (ice) at 85 degrees C to water (liquid) at 48 degree C?
asked by Jane 
Chemistry need response ASAP please
Calculate the mass KHC8H4O4 (molar mass= 204.44 g/mol) that reacts with 15 mL of the NaOH solution. Express this mass KHC8H4O4 to the correct number of significant figures. Please, help I have no idea how to do this. What will the mass be of KHC8H4O4?
asked by Amy 
ms.sue 5 grade math
In 24 hours, one set of twins drank 16 bottles of formula. Each bottle holds 4 fl oz. How many cups of formula did the twins drink? (1 c = 8 fl oz) A. 8 cups B. 7 cups C. 6 cups D. 5 cups my son write a (D)but i think is (A)
asked by dw 
Chemistry
1. Tube # 3: (a) It started out as purple, and turned into green. (b) No precipitate was noticably formed. Tube #4: (a) This tube was purple, and turned into white. (b) A brown precipitate was formed after adding 1 mL of NaHSO3. Tube #5: (a) This tube was
asked by Miranda 
physics
A block with a mass of 0.5kg is pushed against a horizontal spring of negligible mass and spring constant 450 N/m until the spring is compressed a distance x. When it is released, the block travels along a frictionless, horizontal surface to the bottom of
asked by natasha 
chemistry
Calculate the enthalpy change for converting 10.0g of ice at 25 degrees Celsius to water at 80 degrees Celsius. The specific heats of ice, water, and steam are 2.09j/g degrees Celsius, 4.18j/g degrees Celsius, and 1.85j/g degrees Celsius. The enthalpy of
asked by Brittany 
physics
On a perfect fall day, you are hovering at low altitude in a hotair balloon, accelerated neither upward nor downward. The total weight of the balloon, including its load and the hot air in it, is 24000 N. Find the weight of the displaced air. Find the
asked by Kristie 
Math
Suppose there are 400 students in your school class. What class rank is the 20th percentile?
asked by Bridget 
chemistry
What happens to the concentration of HI(g) when the total pressure on the equilibrium reaction 2HCl(g) + I2(s) 2HI(g) + Cl2(g) is increased (by compression)? 1. increases 2. Unable to determine 3. decreases 4. remains the same
asked by please help 
Chemistry 1201
An unknown compound contains only carbon, hydrogen, and oxygen (C?H?O?). Combustion of 6.50 of this compound produced 9.53 g of carbon dioxide and 3.90 g of water. 1) How many moles of Carbon? 2) How many moles of Hydrogen?
asked by Dylan 
chemistry
For the reaction N2O4(g) > 2NO2(g) ,which of the following disturbances will cause an increase in NO2(g) concentration? 1. a decrease in temperature 2. removal of some N2O4(g) 3. need H for the reaction to predict 4. an increase in temperature 5. an
asked by please help 
Chemistry
Mg + 2HCl > MgCl2 +H2 delta H = ? MgO + 2HCl (aq) > MgCl2+ H2O delta H = ? H2+ 1/2O2 > H2O delta H = 285.8 kJ Using Hess' Law find both the missing delta H values.
asked by Hunter 
Physics
A ﬁgure skater begins spinning counterclockwise at an angular speed of 4.6π rad/s. During a 4.6s interval, she slowly pulls her arms inward and ﬁnally spins at 7.6π rad/s. What is her average angular acceleration during this time interval? Answer in
asked by Ethan 
Economics
what two methods can a less developed country use to finance its economic development? A.internal financing & debt rescheduling B.Interal financing & foreign investment C.Foreign investment & debt rescheduling D.Infrastructure & foreign banks
asked by MM 
physics
A 4.6 kg block starts at rest and slides a distance d down a frictionless 31.0° incline, where it runs into a spring. The block slides an additional 24.0 cm before it is brought to rest momentarily by compressing the spring, whose spring constant is 421
asked by please help:) 
maths
each interior angle of a regular polygon is 18 degree more than eight times an exterior angle. the number os sides of polygon is.
asked by polygon 
physics
A 0.2 kg sponge is dropped from rest , pulled down by gravity. How fast will it be traveling in 6.0s , if a 0.5 N force of air resistance acts on it
asked by Isabella 
Chemistry
Calculate the ratio of NaF to HF required to create a buffer with a pH of 4.00.
asked by Cooper 
math
Take the following out of fraction form tan^2x/cscx+1
asked by Cathy 
Physics
A diver performing a double somersault spins at an angular speed of 4.5 π rad/s precisely 0.70s after leaving the platform. Assuming the diver begins with zero initial angular speed and accelerates at a constant rate, what is the diver’s angular
asked by Ethan 
physics
If you shout across a canyon and hear the echo 0.42 s later, how wide is the canyon?
asked by max 
Chemistry
Lithium hydroxide is used in the space program to remove carbon dioxide (frin respiration) in spacecraft. Specifically, lithium hydroxide, LiOH reacts with carbon dioxide, CO2 to form lithium carbonate Li2Co3, and water. 2 liOH + Co2 Li2Co3+ H2O. What mass
asked by Ambra 
science
if a person is pushing a cart with a force of 40 newtons and it accelerates at 0.5 m/s2 what is the mass of the cart
asked by Mary 
college algebra
Determine the principal P that must be invested at rate r = 3 1 2 %, compounded monthly, so that $700,000 will be available for retirement in t = 13 years. (Round your answer to the nearest cent.) P = $
asked by tracey 
chemistry
What happens to the concentration of NO2(g)when the total pressure on the equilibrium reaction 2 Pb(NO3)2(s) 2 PbO(s) + 4NO2(g) + O2(g) is increased (by compression)? 1. increases 2. Unable to determine 3. remains the same 4. decreases
asked by please help 
Chemistry
A 25.00mL sample of a household cleaning solution was diluted to 250.0mL in a volumetric flask. A 50.00mL aliquot of this solution required 40.38mL of 0.2506 M HCl to reach a bromocresol green end point. Calculate the weight/volume percentage of NH3 in the
asked by Ellen 
physics
Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.
asked by Kristie 
Chemistry!
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00×10−2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in
asked by Gabe 
History
Why was South Carolina placed under military control? I think it is because it refused to ratify the 13th Amendment, but I am not sure.
asked by Samantha 
maths
the radius of the incircle of a triangle is 2cm. if the area of the triangle is 6 sq.cm, then its perimeter is.
asked by circle 
Chemistry
At 1 atm, how much energy is required to heat 39.0 g of H2O(s) at –22.0 °C to H2O(g) at 163.0 °C?
asked by Dan 
ms.sue 5 grade math
Lindsay will lay a certain number of 18inch square tiles in a line to form a walkway. Which of the following is NOT a possible length for the walkway if she uses only whole tiles? A. 6 ft B. 10 ft 6 in. C. 25 ft 6 in. D. 32 ft yesturday you tell me about
asked by dw 
Chemistry
A mixture contains 5.0 g of He, 1.0 g of Ar, and 3.5 g of Ne. Calculate the volume of this mixture at STP. Calculate the partial pressure of each gas in the mixture at STP.
asked by Jenny 
Trigonometry
What is the smallest positive value for x where y = sin 2x reaches its maximum?
asked by Sangita 
chemistry
The position of equilibrium Z1) is never reached in an irreversible process. Z2) is always reached in a reversible process. Z3) is the same for pure reactants or pure products as starting materials. 1. Z3) only. 2. Z2) only. 3. Z1) and Z2) only. 4. Z1) and
asked by please help 
Math
Suppose that 600 meters of fencing are used to enclose a corral in the shape of a rectangle on three sides, and then a semicircle on the fourth side (The diameter of the semicircle is equal to the width of the rectangle). Find the dimensions of the corral
asked by Alex 
Physics
A 58kg skier is coasting down 25degrees slope at an initial velocity of 3,6m per second.A kinetic frictional force of 70N appores the motion.Calculate the net force acting on the skeir, (b)the work done by net force, (c)the final kinetic of the skier using
asked by Somila mdunyelwa 
maths
the base of a solid right prism is a triangle whose sides are 9cm, 12cm and 15cm. The height of the prism is 5cm. Then the total surface area of the prism is.
asked by retangular prism 
chemistry
how much concentrated 12 M hydrochloric acid is needed to prepare 100 mL of a 2.0 M solution?
asked by dellanie 
AP Science
A 2 N and 6 N force pull on an object to the right and a 4 N force pulls to the left a 0.5 kg object. What is the net force on the object? Is the answer 4N to the right
asked by Mary 
Algebra
If a football field's length is 120 yds. and its width is 53 1/3 yards and a soccer field's lenght is 130 yds and its width is 100 yards how many times the area of the small field is the area of the larger field? I multiplied the length x width and got
asked by Samantha 
CHEM
a 250.0ml buffer solution is 0.250M in ascetic acid and 0.250M in sodium acetate. B). What is pH after addition of 0.0050mol of HCl? C). What is pH after addition of 0.0050mol of NaOH?
asked by ALISON 
Physics
Two electrons are fixed 2cm apart. Another electron is shot from infinity and comes to rest midway between the two fixed electrons. A)Find the energy of the system initially( unknown quantity leave as a variable) B) Find the final energy of the system?(
asked by Eileen 
Physics
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.5 cm thick. The bullet strikes the board with a speed of 400 m/s and emerges with a speed of 285 m/s. (a) What is the average acceleration of the bullet as it passes through
asked by Alex 
science
Jamie sketched the following picture of the landscape he saw while he was on vacation. It included cacti & barren rock. (picture of a desert) What can you conclude about what kinds of plants can grow in this climate? A) only plants that grow very rapidly
asked by Xariz 
physics
A mountainclimber friend with a mass of 82 kg ponders the idea of attaching a heliumfilled balloon to himself to effectively reduce his weight by 25% when he climbs. He wonders what the approximate size of such a balloon would be. Hearing of your physics
asked by Kristie 
Chemistry
Describe how 500ml of 0.1M solution of NaOH can be prepared from 2.0M NaOH?
asked by Snagga 
english
WRITE AN ARTICLE FOR A SCHOOL MAGAZINE IN WHICH YOU HIGHLIGHT THE ADVANTAGES AND DISADVANTAGES OF THE PROPOSED SCHEME [HAVING A SCHOOL COURT]: Fellow students! Big changes are on the horizon. Our headteacher, Mrs Rodriguez, has finally decided to tackle
asked by Zaki 
physics
A 390.0 g block is dropped onto a vertical spring with a spring constant k = 252.0 N/m. The block becomes attached to the spring, and the spring compresses 0.15 m before momentarily stopping. While the spring is being compressed, what work is done by the
asked by Katie 
CHEMISTRY
If 6.50 g of the unknown compound contained 0.217 mol of C and 0.433 of H, how many moles of oxygen,O, were in the sample?
asked by Collin 
chemistry
Determine the mass of Co(NO3)2•6 H2O to prepare 250 mL of a 0.50 M stock solution.
asked by Cortney 
biology 2 ap
All living organisms share all of the following features in common except A. carry out metabolism B. transfer energy with ATP C. encode hereditary information in DNA D. are composed of one or more cells E. containing organelles
asked by ariyonia 
algebra 2
lisa can shovel snow from her driveway in 40 minutes jim can do the same job in 50 minutes how long would it take lisa and jim to shovel the driveway together?
asked by kay 
math
Let y = tan(5x+2). Find the differential dy when x = 2 and dx = 0.4 Find the differential dy when x = 2 and dx = 0.8
asked by bobby 
physics
If you drop a stone into a well that is d = 122.0 m deep, as illustrated in the figure below, how soon after you drop the stone will you hear it hit the bottom of the well?
asked by caroline 
trig
Two tracking stations are on the equator 134 miles apart. A weather balloon is located on a bearing of N 38°E from the western station and on a bearing of N 19°E from the eastern station. How far is the balloon from the western station? Round to the
asked by Anonymous 
Chemistry
What mass of sodium benzoate should you add to 150.00 ml of a 0.15M benzoic acid solution to obtain a buffer with a pH of 4.25?
asked by Cooper 
math
Use linear approximation, i.e. the tangent line, to approximate ((125.1)^(1/3)) as follows: Let f (x)=((x)^(1/3)). The equation of the tangent line to f(x) at x = 125 can be written in the form y = mx+b where m = b =
asked by bobby 
chemistry
Which part(s) of the reaction 2O3(g) 3O2(g) will be favored by an increase in the total pressure (resulting in compression)? 2. Neither is favored. 3. Unable to determine 4. reactants
asked by please help 
Physics
A girl sitting on a merrygoround moves counterclockwise through an arc length of 3.36m. If the girl’s angular displacement is 2.96 rad, how far is she from the center of the merrygoround? Answer in units of m.
asked by Ethan 
math
find the number of possible 5 card hands that contain the cards specified a: 5 face cards(either king,queen, or jacks) b: 4 aces and 1 other card c: 2 aces and 3 kings please explain what im supposed to do thanks!
asked by bkue 
ALGEBRA
The perimeter of a traffic sign must be 128 inches. It's length is 8 inches longer than the width. find the dimensions.
asked by AMBER 
College Health Law
Following an automobile accident, a 16year old boy who had recently escaped from a detention center was brought to the hospital emergency department by ambulance. The patient seemed to be alert and claimed to be suffering withdrawal symptoms from a drug
asked by Bobby 
English  ms. sue
this be last question What figure of speech portrays the wharf’s ‘crooked legs stockinged in barncales”? where else do it occur? How do it further the description? I not get this one I think the figure of speech be personification but I not get where
asked by Mohammad 
math 102
what number multiplied by the numerator and added to the denominator of the fraction 2/5 makes the resulting fraction 8/9?
asked by Jennifer 
physics
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the
asked by carly 
Psychology
Your brain has instructed your muscles to move so an oncoming vehicle. What division of your nervous system carried the information to your muscles? Answer A. sympathetic nervous system B. somatic nervous system C. autonomic nervous system D.
asked by Anonymous 
physics
An object 3.28 cm tall is placed 10.5 cm in front of a mirror, which creates an upright image rant is 6.43 cm in height. A. What is the magnification of the image? B. What is the radius of the curvature of the mirror?
asked by imel 
physics
A fully loaded Saturn V rocket has a mass of 2.92*10^6. Its engines have a thrust of 3.34*10^7 N What is the unbalanced force of gravity on the rocket at blast off What is the unbalanced force on the rocket at blast off
asked by Isabella 
Physics
A 5.00 kg carrying a charge of Q=60 uC is connected to a spring for which k=100N/m. The block lies on a frictionless horizontal track and the system is immersed in a uniform electric field of E=5.0e5 V/m. If the block is released from rest when the spring
asked by Jona F 
math
Find a pair of factors for each number by using the difference of two squares. a. 45 b. 77 c. 112
asked by Daja 
chemistry
For the gaseous equilibrium represented below, it is observed that greater amounts of PCl3 and Cl2 are produced as the temperature is increased. PCl5 (g) PCl3 (g) + Cl2 (g) a) what is the sign of delta S for the reaction? Provide a legitimate rationale for
asked by alex 
math
A cylinder shaped sculpture is 24 meters high with a diameter of 6.8 meters. An artist plans to spray paint the entire surface with silver paint. If 1 can of spray paint covers 50 square meters, how many cans does the artist need to paint the sculpture?
asked by kelly 
Physics
A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 4.6 m/s2. She decides to test the car by dragging with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 0.8 s before
asked by Dave 
chemistry
For the system H2(g) + CO2(g) H2O(g) + CO(g) at equilibrium, the addition of H2(g) would cause (according to LeChatelier’s principle) 1. more H2O(g) and CO(g) to form. 2. only more CO2(g) to form. 3. only more H2O(g) to form. 4. no change in amounts of
asked by please help 
Physics
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the
asked by kari 
Physics
If you look at yourself in a shiny Christmas tree ball with a diameter of 9.0 cm when your face is 38.0 cm away from it, where is your image? (Your answer should be positive if the image is in front of the ball's surface, and negative if the image is
asked by ANNA 
algebra
scale drawing of a rectangular room has a length of 18 inches and a width of 12 inches. if the scale for the drawing is 1 inch =21/2 feet, what is the permeter of the actual room
asked by dontrarius 
Programming
Write a pseudocode for the following scenario. You are to continue inputting numbers which may be either positive or negetive from a keyboard until a number of zero is entered. Count the number of positive numbers entered. This sum must be printed out at
asked by Themba 
English
What are some examples of irony that compares and contrasts The Story of an Hour and The Whirligig of life?
asked by Alexis 
physics
The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m/s^3. Calculate where the top of the atmosphere would be.
asked by Kristie 
AP psychology
Regarding the impact of watching television violence on children, most researchers believe that: A. aggressive children simply prefer violent programs. B. television simply reflects, rather than contributes to, violent social trends. C. watching violence
asked by milla 
Economics
Aside from humanitarian concerns, which of the following is one reason on nation is motivated to provivde foreign aid to a less developed country? A. Foreign aid is tax deductible B. The nation providing foreign aid decreases its unemployment. C. The
asked by MM 
Precalc
Evaluate Tan[(3pi70000pi)/2]
asked by Megan 
physics
A 1000kg car accelerates from rest to 30m/s over a distance of 20m. a) ignoring friction and air resistance, what is the power generated by the motor? b) if the friction and air resistance is 200N, what is the power generated by the motor?
asked by natasha 
grammar
I am looking for the adverb clause in this sentence: It is difficult to travel through the huge expanse of parched sands in the Sahara Desert, where oases are plentiful but distance from each other.
asked by Jon 
physics
A 350Hz tuning fork is held above a closed pipe. Find the spacings between the resonances when the air temperature is 20°C.
asked by lisa 
chemistry
Why do the concentrations of Pb 2+ and SO4 2 ions in a saturated solution of PbSO4 in contact with solid PbSO4 remain the same when the solution evaporates to half of its original volume? it has to do with equilibrium.
asked by alex 
chemistry
Data given are related to the BornHaber cycle for HCl Calculate the amount of energy lost when the ionic species return to their molecular form. Atomization of ½H2(g)=217.6KJ/mol 1st Ionisation of ½H2(g)=1312KJ/mol Atomization of ½Cl2(g)=121 KJ/mol 1st
asked by Francesca 
ms. sue
ms. sue only one story be due today and i do questions myself for that one but this one i need help you please help me? this be emily carr story d'sonoqua D’Sonoqua I was sketching in a remote Indian village when I first saw her. The village was one of
asked by Mohammad 
physics
The pressure in each of your car tires is 2.30 105 Pa. The mass of your car is 1640 kg. Assuming that each of your tires bears onequarter of the total load, what is the contact area of each tire with the road?
asked by Alaine' 
physics
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the
asked by caroline 
chem
calculate the number of moles of glycine(gly)(C2H5NO2) an amino acid found in proteins in a 36.2g sample of glycine. can you show work
asked by lisa 
chemistry
1.10 is allowed to react with 9.57 , producing 2.50 . What is the theoretical yield for this reaction under the given conditions?
asked by Collin 
physics
For safety in climbing, a mountaineer uses a nylon rope that is 65 m long and 1.1 cm in diameter. When supporting a 94kg climber, the rope elongates 1.4 m. Find its Young's modulus.
asked by greg 
social science
Professor Koo examined the literature on AIDS and could find nothing that examined children’s attitudes toward parents and friends with AIDS. To examine this study, Dooley should undertake a(n) a. examination of reductionism b. descriptive study c.
asked by Mike 
physics
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the
asked by jack 
chemistry
given the equilibrium constant for the following reaction at 500 K, 2 NO (g) + O2 (g) 2 NO2 (g) Kc = 6.2x10^5 calculate the equilibrium constant for the reaction expressed as partial pressures, Kp. the answer is 1.51x10^4. How do i get this?
asked by alex 
Physics
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the
asked by cassidy 
English 3
8. The modernist movement challenged American writers to a. adopt Marxism as a philosophical basis for their work b. set their stories and poems in the South or Midwest c. find new themes, subjects, and styles for their work d. avoid the influences and
asked by mysterychicken 
physics
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the
asked by nick 
chem
calculate how much 0.100 M NaOH is needed to react completely in 45 mL of 0.0500 M HCl
asked by Brynn 
Economics
In 1973, Members of the Oraganization of OilExporting Countries (OPEC) reduced oild exports, which more than quadrupled oil prices. what effect did that have on less developed nations? a. Their development increase rapidly because if the profits they made
asked by MM 
Applied physics
the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and chlorine are added to a 5.0L reaction vessel, what is the equilibrium composition of the mixture at 230 degrees celcias?
asked by jose souljoe 
Physics
A ball of mass 0.30 kg is fired with velocity 100 m/s into the barrel of a spring gun of mass 2.2 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to
asked by Danielle 
physics
In this equation, vd is the speed of the detector, and vs is the speed of the source. Also, fs is the frequency of the source, and fd is the frequency of the detector. If the detector moves toward the source, vd is positive. If the source moves toward the
asked by lauren 
physics
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the
asked by cassidy 
math
I have a basket of 40 yellow tennis balls and 35 white tennis balls. What is the probability that the next tennis ball he randomly chooses will be yellow?
asked by Quaonna 
Paragraph Writing
BACKGROUND: Ten years ago, I started working as a clerk for DMD Medical Supplies. Six months ago, Liz, the human resources director, promoted me to office manager. I manage two employees: Jack and Ruth. My office provides secretarial support for the four
asked by Danny 
ALGEBRA
A hardware supplier manufactures three kinds of clamps, types A, B, and C. Production restrictions force it to make 10 more type C clamps than the total of the other types and twice as many type B clamps as type A clamps. The shop must produce 250 clamps
asked by AMBER 
ALGEBRA
A non toxic floor wax can be made from lemon juice and linseed oil.The amount of oil should be 2 times the amount of lemon juice. How much of each ingredient is needed to make 30 ounces of floor wax?
asked by AMBER 
physics
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the
asked by cassidy 
Algebra
Use the Quadratic equation to determine the last day that cowboy hats will be sold. cowboy hats = 0.4x^2 + 20x + 10 Please help me work through this.
asked by Anonymous 
Algebra 2
A measurement y varies directly with regard to another value x. If y = 9 and x = 24, find x for y = 25.
asked by Marie 
MATH
How many positive integers in the set {50, 51,, . . . , 298, 299} do not contain any even digits? If you do not mind please explain the steps along the way in detail. Thank you
asked by Math help please 
Chemistry 1201
A solution of ammonia and water contains 1.00×1025 water molecules and 5.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
asked by Brittany 
trig
Find the other endpoint of the line segment with the given endpoint and mid point. 1. Endpoint:(1, 9), midpoint: (9, 10) 2. Endpoint: (2, 5), midpoint: (5, 1) 3. Endpoint:(9, 10), midpoint: (4, 8)
asked by drew 
Geometry
A spherical water tank has a diameter of 10 feet. How much water does it hold when half full ? ( use 3.14 )
asked by Elizabeth 
Physics
Two toy locomotives approach each other along the same line, and upon collision both stop dead still. One locomotive has three times the speed of the other and the sum of their masses is 4.48 kg. What is the mass of the faster locomotive? What is the mass
asked by Danielle 
Physics
A 5.00 kg carrying a charge of Q=60 uC is connected to a spring for which k=100N/m. The block lies on a frictionless horizontal track and the system is immersed in a uniform electric field of E=5.0e5 V/m. If the block is released from rest when the spring
asked by Jona F 
algebra
A person needs to prepare 130 pounds of blended coffee beans for $5.27 per pound. He plans to do this by blending together a highquality bean costing $6.50 per pound and a cheaper bean at $2.50 per pound. To the nearest pound, find how much highquality
asked by Anna 
Math
The pressure in each of your car tires is 2.30X10^5 Pa. The mass of your car is 1640 kg. Assuming that each of your tires bears onequarter of the total load, what is the contact area of each tire with the road?
asked by Alaine' 
Math
The fourth term of an arithemetic progression is 13 and the tenth term is 31 find it first tern and it common difference
asked by Wale 
Economics
What is Foreign investment?
asked by MM 
Economics
What does the term “recession” mean and how do we know when one occurs?
asked by John 
Health Law
Will you help me solve this for my health law midterm please? Following an automobile accident, a 16year old boy who had recently escaped from a detention center was brought to the hospital emergency department by ambulance. The patient seemed to be alert
asked by Bobby 
Physics
A spoked wheel with a radius of 44.0 cm and a mass of 1.90 kg is mounted horizontally on frictionless bearings. JiaJun puts his 0.550kg guinea pig on the outer edge of the wheel. The guinea pig begins to run along the edge of the wheel with a speed of
asked by Priyanka 
physics
A block of mass m = 3 kg is attached to a spring (k = 28 N/m) by a rope that hangs over a pulley of mass M = 7 kg and radius R = 6 cm, as shown in the figure. Treating the pulley as a solid homogeneous disk, neglecting friction at the axle of the pulley,
asked by Angelina 
Physics
The pressure in each of your car tires is 2.30X10^5 Pa. The mass of your car is 1640 kg. Assuming that each of your tires bears onequarter of the total load, what is the contact area of each tire with the road?
asked by Alaine' 
5th grade Math
Having trouble with the review question below. What is the best unit to use to measure the capcity of a soup pot? a. cup b. pint c. quart d. fluid oz I don't think it is a or d. Not sure though between b and c. I don't know what a soup pot looks like.
asked by Brandi 
chem
calculate the pH during the titration of 100 mL of .200 M HCl with .400 M NaOH after 0,25, 50, and 75 mL NaOH have been added
asked by Brynn 
Accounting
I have to do a research paper on the finance of GameStop, and I'm having problem with the first two questions: 1. If GameStop Corp chose to issue another round of corporate bonds, how much interest rate should they offer? 2. Assume that GameStop Corp did
asked by Viola 
Fantel
The heat of vaporization of water is 40.66 kJ/mol. Assuming sweat is 100% water, how much heat is removed from your body through the evaporation of 3.50 g of sweat?
asked by Joe 
Physics
Two circular metal disc each of 3.00 cm diamter are 1.5 mm apart make a capacitor. A)What is the capacitance of this capacitor if it is in series to a 25 V battery? B)What is the magnitude charge developing on each plate? C)While the batter remains
asked by Tim Cooper 
geometry
Find the magnitude and direction of RS for the given coordinates. Round to the nearest tenth. R(2,3) S(4, 9)
asked by Anaely Perez 
Chemistyr
Eighty grams of sodium nitrate dissolved in 50 grams of water will make what type of solution?
asked by Kayla Johnson 
algebra
fill in the missing values for a retangular prism. length__________? width 7 height 5 surface area 358 volume __________? Formula SA = 2(LxW) + 2(LxH) + 2(WxH)
asked by paul 
Improving your writing
BACKGROUND: Ten years ago, I started working as a clerk for DMD Medical Supplies. Six months ago, Liz, the human resources director, promoted me to office manager. I manage two employees: Jack and Ruth. My office provides secretarial support for the four
asked by Danny 
algebra
Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0 sqrt3, 3sqrt3
asked by Terry 
kinetics
a stationary car is hit from behind by another car travelling at 40km per hr. After collision both cars remain locked together. The masses of the stationary car and the moving car are 1500kg and 1300kg respectively (use g=9.8ms2) a) is this an elastic or
asked by dmkp 
Algebraic Polynomials
I don't know where to go about creating a polynomial equations for the following problem: A piece of wire 52 in. long is cut into two pieces, and then each piece is formed into a square. If the sum of the areas of the two squares is 97 in.^2, how long are
asked by Anonymous 
applied chemistry
the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and chlorine are added to a 5.0L reaction vessel, what is the equilibrium composition of the mixture at 230 degrees celcias?
asked by jose souljoe 
ALGEBRA
Perimeter of some traffic signs must be 74 inches.It's length is 11inches longer than it's width. What are the signs dimensions?
asked by AMBER 
general
I really don't like the fact that you guys are skipping so many questions we need help here and were not getting it. i understand that no one knows everything but, please don't skip the questions its really hard when i need help and no one is helping me.
asked by Anonymous 
algebra
) If x is a nonzero real number, is x–2 always positive, always negative, or positive or negative depending on whether x is positive or negative? Explain your answer.
asked by PLEASE NEED HELP 
precal PLEASE HELP!
Given:cosA= 4/5 0(less than or equal to)A(less than of equal to)90* find sinA, sin2A, cos2A
asked by olivia 
physics
Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the wings is 4.2% of atmospheric pressure. Find the lift on the airplane.
asked by Kristie 
Physics
A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. The object rolls without slipping along the track shown in the figure. The track ends with a ramp of height R = 3.0 m that launches the object vertically. The
asked by Adam 
Physics
A 515 cm3(cm cubed) block of aluminum (D = 2.7 g/cm3) is lowered carefully into a completely full beaker of water. What is the weight of the water, in newtons, that spills out of the beaker?
asked by Alaine' 
Chemistry
Predict the color change when an aqueous solution containing Ag+ ion is added to a green solution of the copper (II) ion. It is green because HCL has been added. Thanks.
asked by Kate 
Math
The pressure in each of your car tires is 2.30X10^5 Pa. The mass of your car is 1640 kg. Assuming that each of your tires bears onequarter of the total load, what is the contact area of each tire with the road?
asked by Alaine' 
Advanced Math
A circle of center (3 , 2) passes through the points (0 , 6) and (a , 0). Find a. The triangle bounded by the lines y = 0, y = 2x and y = 0.5x + k, with k positive, is equal to 80 square units. Find k. When the polynomial P(x) = x3 + 3x2 2Ax + 3,
asked by Brittney Hoang 
Math
What do you call an angle more than 90 degrees and less than 180 degrees? Obtuse How many equal sides does an icosahedron have? Twenty A farmer grows 252 kilograms of apples. He sells them to a grocer who divides them into 5 kilogram and 2 kilogram bags.
asked by Rezu 
Dressmaking
The outer edges of a stand collar are a) larger b) 1/8inch smaller c)cut on the bias d) the same this is the way the question is worded and I think they refer to the neckline of the garment to which it is attached.I think the answer is either b or d
asked by Ayesha 
to ms .sue
OMG! LOL
asked by Celest 
physics
A girl of weight 500 N sits 3m from the fulcrum. how far away is the fulcrum on the other side should a force of 600 N be applied to balance the girl
asked by Anonymous 
Microbiology
Why can Enterotube II System be used to identify only gramngative, oxidase negative Enterobacteriaceae?
asked by Amanda 
Economics
Foreign aid from developed countries to underdeveloped countries is typically used for what?
asked by MM 
Economics
What is “Gross Domestic Product” (G.D.P.)
asked by John 
Chem
why is (NH4)2Cr2O7 >> N2 + Cr2O3 + 4 H2O balanced like this.
asked by Kenneth 
Science
A 2 N and 6 N force pull on an object to the right and a 4 N force pulls to the left a 0.5 kg object. What is the net force on the object?
asked by Mary 
Geometry
a cone full of water has been poured intoa cylinder. what is the depth of thewater in the cylinder? the cone has a height of 15m and a diameter of 20m. the cylinder also has a diameter of 20m and the amount of water in the cylinder is d meters high.
asked by Slacker 
CHEMISTRY
A secondorder reaction has a rate constant of 1.65 M–1 s–1. If the initial reactant concentration is 1.0 M, calculate the time (in seconds) required for the reaction to become 90% complete. i got 0.06734 seconds but that's incorrect i have no idea
asked by Maya 
Math: PreCal: Triangles
An isosceles triangle is inscribed in a circle. The shortest side is the base which is 16 cm long. If the radius of the circle is 10 cm, what is the length of side "a"?
asked by Joey 
math
A box of pens contains 54 pens with black ink 36 with blue ink and 30 with red ink if you took 20 pens from the box how many would you expect to have blue ink black ink red ink?
asked by miki 
Physics
Suppose there's a collison way out in the Oort cloud, say 30,000 AU away from the Sun. This collison causes one of the comets to alter its orbit and head almost directly at the Sun, such that the comet just skims the surface of the Sun and heads back out
asked by Stefanie 
chem
calculate the mass in grams of oxygen atoms in 0.25 mol fluoroacetic acid
asked by lisa 
Math Stats
A random sample of 30 plants has a sample standard deviation of 3.4 days for maturity. A 95% confidence interval for the population variance is __ to __days.
asked by Apryl 
physics
A mass of 0.7 kg is attached to the end of a massless spring of spring constant 0.35 N/m. It is released from rest from an extended position. After 0.8 s, the speed of the mass is measured to be 1.5 m/s. What is the amplitude of oscillation? What is the
asked by Katie 
literature
Based on the Lady's actions in "The Lady of Shalott," which word best describes her personality?
asked by gerrell 
financial management
show me how to calculate current ratios, longterm solvency ratios, contribution ratios
asked by june 
Biochemistry
please help 1. An uncharged solute (S) is transported by symport with H+. The Delta Psi is 120 mV and the Delta pH is 1. A) what is the expected Sin/Sout if the S:H+ symport ratio is 1:1? B)what is the expected Sin/Sout if the S:H+ symport ratio is 1:2?
asked by Steven 
biology
sir, there was a question in my biology test that required us to draw a graph of concentration of sucrose solution against rate of reaction. so how do I plot the graph? If i follow the question's requirement, i have to put the concentration of sucrose
asked by shakti 
algebra
Could someone please help me with this? (1) If x is a nonzero real number, is x–2 always positive, always negative, or positive or negative depending on whether x is positive or negative? Explain your answer.
asked by sally 
ap chemistry
When 50.0 mL of a 0.010 M CuNO3 solution is mixed with 150.0 mL of a 0.010 M NaCl solution, a precipitate forms (Ksp = 1.9 x 10^7). a) Determine all final ion concentrations b) Determine the mass of the precipitate formed. How do i do this?
asked by alex 
math
The linear approximation at x = 0 to sin(8x) is L(x) = A+Bx where A = B=
asked by bobby 
finite
Assume that n = 14, and p = [ 2/7]. Find the probability of at least 3 successes and at least 2 failures.
asked by victoria 
Mathematics
Factorise as far as possible ???? prime factors: 5x^3680y^2
asked by Dayimani 
College Physics
An electron with a speed of 1.9 × 107 m/s moves horizontally into a region where a constant vertical force of 5.4 × 1016 N acts on it. The mass of the electron is 9.11 × 1031 kg. Determine the vertical distance the electron is deflected during the
asked by Tim 
social studies
Word Bank;command economy, market economy, traditional economy, social reforms, labor unions, assassinated, political party 1) people spend most of their time growing food for themselves and their families in a _____________. 2) some workers form groups
asked by Celest 
kinetics
An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius
asked by dmkp 
Math Stats
Suppose that a random sample of n kernels of popcorn is taken and x of these kernels pop. The buyer wants to be 95% sure that the point estimate for p will be within 0.01.If no preliminary study is done to estimate p, how large a sample should the buyer
asked by Apryl 
English  ms. sue
ms. sue i have little more questions on story i be posting one by one. Even though this author Emily be admired as writer, she be better wellknown as painter. What aspects of her style remind u of the visual arts? Write down passages that illustrate ur
asked by Mohammad 
math
If f (x) = 4sin(x)+3x^(x), find f'(2).
asked by bobby 
Math
(COMPOUND INTEREST) Effie is planning to set up a trust fund for her new grand daughter. In 18 years time she wants the investment to be worth $50000 to help her buy a car or a home unit. a)How much should she invest at 5% p.a. compounding yearly? I know
asked by CrissyXD 
Biology
do all specific proteins have the same function in different living organisms?
asked by Alex 
English
Using shadow puppets is a very old storytelling tradition around the world. (What is the part of speech of 'storytelling'? Is it an adjective or a noun?)
asked by rfvv 
Algebra
Determine the amount of an investment if $500 is invested at an interest rate of 4.25% compounded quarterly for 12 years.
asked by Sharon 
Logarithms
Show that, if one sound is 10 decibels louder than a second sound, than the first sound is 10 times as intense as the second sound.
asked by Anonymous 
college statistic and algebra
1.suppose that the demand forecast indicate that 1800 units of the product can be sold. the fixed cost is $3,000, the variable cost is $2 for each unit product and selling price $10 per unit. the decision to produce and sell 1800 units in a projected
asked by bibi please help 
Science
How do these rank in momentum 1 being least and the most 5 Fast car, stopped truck, slow car, Fast baseball, Fast feather I have 1. Stopped truck
asked by Mary 
Math
A 515 cm3 block of aluminum (Density = 2.7 g/cm3) is lowered carefully into a completely full beaker of water. What is the weight of the water, in newtons, that spills out of the beaker?
asked by Alaine' 
precalculus
use gaussjordan x+2y=5 2x+y=2
asked by Anonymous 
Economics
How might earning a college degree increase lifetime earnings and employability?
asked by John 
algebra
Is it possible to subtract two polynomials, each of degree 3, and have the difference be a polynomial of degree 2? If so, give an example. If not, explain why not.
asked by PLEASE NEED HELP 
Logarithmic Scales
In 1995, Japan had an earthquake of magnitude 7.2. What is the magnitude of an earthquake that is twice as intense?
asked by Anonymous 
Accounting
The Ritz Manor is a popular seaside resort. A double room costs $220 for one night. To reserve a room, guests must pay one night’s stay in advance. On each floor of the hotel, Vendalite Company operates vending machines with energy bars, juices, and
asked by Stephanie 
Pre Algebra
equations of the system Ax4y=9, 4x+By=1 explain how to find the values of A and B,then find these values
asked by Varice 
biology
sir, there was a question in my biology test that required us to draw a graph of concentration of sucrose solution against rate of reaction. so how do I plot the graph? If i follow the question's requirement, i have to put the concentration of sucrose
asked by shakti 
english
How would I fix this sentence: As I was reading the piece by Du Bois, I noticed the parallels between it and Morgan Freeman’s documentary Prom Night in Mississippi.
asked by jon 
triggg
Suppose a circle has a radius of 4.5 inches. If you double the radius of the circle, does the area of the circle double as well? What happens to the circle’s circumference? Explain and justify your reasoning.
asked by cheyanne marie 
chem
calculate the number of oxygen atoms in 0.25 mol fluoroacetic acid (C2H3O2F) show work if possible
asked by lisa 
math
The sum of two numbers is 105. One number is 6 times the other. Find the numbers the smaller value and the larger value.
asked by binta 
Math
The internal angles of an equilateral triangle all measure how many degrees? 60 How many dimensions does a semicircle feature? Is it 2?
asked by Aizon 
Crime scene chemistry
What would happen to the denisty of a plastic sample if an excessive number of air bubbles were allowed to accumulate on the plastic surface when placed into the solution?
asked by Allison 
physics
A sharp image is located 83.0 mm behind a 62.0 mm focallength converging lens. Find the object distance by calculation.
asked by John 
physics
A uniform electric field of magnitude 339 N/C is directed along the +yaxis. A 6.00 µC charge moves from the origin to the point (x, y) = (40 cm, 33 cm).What is the change in potential energy associated with this charge ?
asked by george 
Human Realtions  "You" and "I" Messages
Hi, I'm stuck on changing "You" language into "I" language on these statements: "You need to get more sleep." "You watch too much TV."
asked by Alex L. 
math
Let f(x)=((x^(6))*((x8)^(2)))/((x2+4)^(7)) Use logarithmic differentiation to determine the derivative. f '(x) = f '(8) =
asked by bobby 
math
What is the tip speed (ft/min) of a 21 inch long rotary lawn mower blade that is connected to the output shaft of an engine operating at 3400 rpm? What are the steps to figure this out?
asked by Sushmitha 
Math
The perimeter of a circle is also known as what? circumference? What does the square root of 144 equal? 12?
asked by Rezu 
English
Thank you, Writeacher. A few more things. I hope you can have a look at them. Can I start my interview by asking: 1) Tell me a little bit about yourself: Are you married? Do you have any children? If yes, how many? 2) Mr. Gradgrind makes an overall
asked by Matthew 
Ashford
Paul states that he scored in the 100th percentile on a given standardized test. Do you believe him? Why or why not?
asked by Ward 
Science
The sun emits billions of watts of light,heat,and energy ever second. How much of this light,heat, and energy does the Earth benefit from?
asked by Maddie 
math
SPINNER (AD) AND NUMBER CUBE P(NOT A, NUMBER LESS THAN 5)
asked by Evangelina 
English
Hi I'm doing a mla research paper for my college English class. My topic is What is Lupus? I having a difficult time coming up with a thesis for this topic. If anybody has any ideas please respond. Thanks
asked by Lakeisha 
geometry
Large triangle (30¢X, 60¢X, and 90¢X), the base is 15 feet. and small triangle (30¢X, 60¢X, and 90¢X) the above two triangle the ratio of the perimeter of the large triangle to the perimeter of the small triangle is ¡Ô3. Determine the area of the
asked by Piggy 
to ms.sue
i still don't get what i put down. ??????????????????????????????????????? for the population question!!!!!!!!!! Word Bank;command economy, market economy, traditional economy, social reforms, labor unions, assassinated, political party 1) people spend
asked by Celest 
Geometry
how do you factor 49y^2  4x^2 ?
asked by penelope 
geometry
Large triangle (30¢X, 60¢X, and 90¢X), the base is 15 feet. and small triangle (30¢X, 60¢X, and 90¢X) the above two triangle the ratio of the perimeter of the large triangle to the perimeter of the small triangle is ¡Ô3. Determine the area of the
asked by Piggy 
math
Let y = tan^(1)(sqrt(5x^(2)1)) Find dy/dx
asked by bobby 
math
Let y = e^(x/1). Find the differential dy when x = 5 and dx = 0.5 Find the differential dy when x = 5 and dx = 0.01
asked by bobby 
chem
How many moles of calcium are in 13.6 g Cacl2? show work if possible
asked by lisa 
social studies
i don't need the answer. i need instructions on how to do it . there is a graph. the question is how did the population of nebraska in 1900 compare to its population in 2000? what are you supoosed to do to answer the question.What does the question mean?
asked by Celest 
math
how would you teach 3rd grade how to do reasonable range on this 2235 pages per day about how many days willit take to read 90 pages
asked by Anonymous 
please help
1.suppose that the demand forecast indicate that 1800 units of the product can be sold. the fixed cost is $3,000, the variable cost is $2 for each unit product and selling price $10 per unit. the decision to produce and sell 1800 units in a projected
asked by bibi please help 
poetry, please comment
The Abuse Ends Now by: Kathy A I wasn't enough So he became rough I'm just not that tough As he was handcuffed I saw his face I hoped he knew he was a disgrace After all this time of looking into those deceiving blue eyes I just sit and cry Because of
asked by i♥zee 
Astronomy
When the Sun ends up as a white dwarf, billions of years from now, it will contain about 40 percent of its presentday mass and have the same radius as Earth. What will be its density? How many times more dense is that than the presentday Sun?
asked by Leilani 
Business English
Our short memory can only hold about seven bits of information at a time. This means you should: a,use words with six letters or less b,use sentences of six letters or less c,never write a document with more than seven points d,group large amounts of
asked by Alicia 
Math
2. Which ordered pair is a solution of y > 5x  2? A. (1,5) B. (2,7) C. (3,13) D. (4,4) Is it A?
asked by Rezu 
algebra
During the first part of a trip, a canoeist travels 69 miles at a certain speed. The canoeist traveled 23 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 2 hrs. What was the speed on each part of the trip?
asked by Terry 
to ms .sue
i see that nebraka's population for 1900 is smaller than nebraksa's population for 2000
asked by Celest 
kinetics
A car is travelling on a banked circular racetrack, Given that the track is banked at an angle of 16degree to the horizontal and the radius of the track is 50 metres and there are no friction forces present a) draw a free body diagram of the car
asked by dmkp 
English
Can you please check these sentences? I just need to know if they are ok. 1) When do you usually get off work? He took a day off work to drive me to the airport. 2) The manager has just laid off Peter’s father. Can you put me through to the manager,
asked by Matthew 
computers
Housing is a problem in Nigeria, write an algorithms to solve these problems.
asked by Nnari Gift 
Math
Janet has a circular garden in her front yard with a diameter of 8 feet. How does the diameter d compare to the circumference C of the garden? f) d = 1/3C g) d = 1/2C h) d = 2C i) d = 3C
asked by Mickaela HELP ME PLEASEEEE 
Math
Help with identify the property 45x6=(40+5)x(5+6)= I think Assoiative prop. ( is this correct?) 6x1=6 I put identity prop. of 1 4+(6+5)=(4+6)+5= distributive prop. 8+(8)=0 I put identity prop. of 0 5x4=4x5 I put communtive property Can you tell me if I
asked by confused 
Transistion to College Math
A rifle bullet is fired vertically with initial speed 490 m/s. how long does it take the bullet to reach its greatest height?
asked by Mike 
programming in BASICS
1. The result of computations done in a statement are not stored in the computer's memory. A.LET; B. PRINT; C. compute; D. PRINT USING. 2. which of the following statements may appear anywhere you need them in a program, and you can use as many as you
asked by patricia 
Maths
There are two trains. The first train is travelling at 52 km/h. The second train is travelling at 68 km/h. It takes 9 seconds for the second train to pass the first train. How long is the second train?
asked by Tim 
Business
How does poverty affect the economy?
asked by Sam 
Geom./Trig.
an airplane flies directly overhead at 540mph. 1 minute later is seen at an angle of elevation of 34 degrees. how far did the airplane fly during that time? what is the elevation of the plane?
asked by Emma 
physics
An object has a kinetic energy of 304 J and a momentum of magnitude 26.7 kg · m/s. (a) Find the speed of the object. (b) Find the mass of the object.
asked by jill 
Math
Solve the equation: 3y+5>23
asked by Jon 
Economics
Why might an increase of the minimum wage in the United States impact unemployment rates?
asked by John 
Trigonometry
Which of the following is equivalent to 1 − cos 2 θ/cos 2 θ? A. sec2 θ B. (csc 2 θ ) 1 C. tan 2 θ D. sin 2 θ E. –1/sin2 θ
asked by Sangita 
Programming in basic
There are parentheses inside parenthesis.the operations inside the_pair are performed first.outer,inner,any,all of the above
asked by Femi 
Economics
How does government intervene to move an economy out of a recession?
asked by John 
math
A sample survey of 50 people in Harrisburg, PA indicates that 10 of them know the mayors name in the neighboring city. Out of 5,500 Harrisburg residents, how many would you predict know the name of the mayor of the neighboring city? I thought 1100. I did
asked by confused 
statistics
Your customer is using a 620R to deliver fluid to a 25 liter bottle. He calls you and says the delivery rate has a lot of pulsation at the delivery pressure he is operating. If the bottles are not seated exactly in the holder, which happens often the first
asked by Anonymous 
math
There are 5 cards numbered 1,2,3,4,5 in a bag. There is also a fair coin that is tossed what is the probility P(odds,Tails) I think it is 3/10 but not sure. Please explain this to me.
asked by b6 
tax
How to calculate net rental income using IRS method and the Tax Court method? I need help please i don't know how to do this
asked by Andy 
English  ms. sue
What do Emily gain by using words such as “grated” ,“slithered” , “ooze”? She gain sound effects? Feelings?
asked by Mohammad 
financial management
show me how to work a forecast personnel expenses & total revenues using weighted moving averages & moving averages using 3 fiscal years
asked by june 
insurance
Actual payments by an insurance company for losses that happen are called: A. benefits. B. coverage. C. premiums. D. insurable interest. I think it might be C.
asked by Des 
5th grade Math
Need some help on a review question. The questions says: Andrew bought a fish tank to keep in his bedroom. Which is the most reasonable ESTIMATE for the capacity of the fish tank that Andrew bought? a. 20 fl oz b. 20 cups c. 20 pints d. 20 gallons I'm
asked by Brandi 
English
I urgently need you to check these questions: 1) When and where were you born? 2) What did your parents do (as a job)? 3) What was your first job? 4) What was your dream when you were a child? 5) How much did you earn by selling Apple computers? 6) How did
asked by Matthew 
Statistics
A window is shaped like a rectangle whose perimeter is 400 inches the length is 7 times as long as the width find the length and the width?
asked by Ms. L 
Math
If f (x) = 6arctan(3e^(x)), find f '(x).
asked by bobby 
English
Anyone help me with my vocabulary homework?
asked by Adam 
math
simplify 15xy/35x
asked by tracy 
algebra
Could someone please help me with this? Is it possible to subtract two polynomials, each of degree 3, and have the difference be a polynomial of degree 2? If so, give an example. If not, explain why not. thanks
asked by sally 
algebra 1b
to determine the number of deer in a game preserve a conservationist catches 330 deer, tages them and lets them loose later 672 deers are cought 168 of them are tagged how many deer are in the preserve
asked by karon 
math
The circumference of a sphere was measured to be 82.000 cm with a possible error of 0.50000 cm. Use linear approximation to estimate the maximum error in the calculated surface area. Estimate the relative error in the calculated surface area.
asked by bobby 
math
solve each triangle. A=45,a=24,b=13
asked by Jeff 
math
Let y = 2(x^(2))+4x+3. Find the differential dy when x = 4 and dx = 0.3 Find the differential dy when x = 4 and dx = 0.6
asked by bobby 
Maths
Simplify 5*+*
asked by Abdul 
physics
It takes an athlete 26s to runs from A to B which is east of A and 25m away. And then to C which is 32m from A. What is his velocity between town A and C? What is his velocity from B to C at a time of 5s?
asked by John T 
math
Sam wants to tile the roof of his shed with square tiles that are 4 inches square. His roof is 12 feet by 12 feet. How many tiles does he need?
asked by jan 
math
fill in the missing vvalues for a retangular prism. length__________? width 7 height 5 surface area 358 volume __________? sa = 2(lw) + 2(lh) + 2(wh)
asked by paul 
to ms.sue
? do i put down ; the population of nebraska in 1900 compares to its population in 2000 by ___________________________________
asked by Celest 
Chemistry
Suppose 500 ml of a .0035 M solution of lead nitrate is reacted with sulfuric acid. What mass of lead sulfate should precipitate?
asked by Anonymous 
English
Can you check if everything is OK in my rephrase of Owen's poem? 1) In the first stanza the soldiers are retreating towards their trenches. Instead of being youthful, strong fighters, they are presented as prematurely old and weak. 2) They are bent over
asked by Matthew 
Math
what number is 3 times more than 5? how do you get the answer? I believe its 15, but someone's saying its 31..
asked by Anonymous 
AP English
can someone please tell me what Luisa Santiago has to do with the role of women in a Chronicle of a Death Foretold by Gabriel Garcia Marquez?
asked by Jessica 
English
Just a question. If you had to write this sentence in the second conditional: If the weather is bad, I won't go out. If the weather was/were bad, I wouldn't go out
asked by Matthew 
organizational communications
I need help with understanding how emotional intelligence and Gibbs confirming climates contributes to organizational functioning?
asked by Tasha 
to ms.sue
today i was trying to call my friend to read me her notes to copy down since i was at violin class. she gave me the wrong number. what does that mean?
asked by Celest 
English  ms. sue
Emily plays with words she write slugs ‘slimed’ walk instead of just describe walk as ‘slimy’ find other words she use in fresh ways. I only find this one   stinging nettles. I not get what other ones there be?
asked by Mohammad 
English
I left out the following sentences. Thank you very much. 1) His dictionary definition of a horse underlines how Mr. Gradgrind has choked his Bitzer's imagination. 2) The black of the soot (can soot be replaced by ash and smoke?). 3) Dickens compares the
asked by Matthew 
ACT
In ACT math question do they ask boyt arithmetic sequence and series? Geometric sequence and series.Matrices. Permutations.
asked by noorie 
chemistry
When Zn(OH)2 was added to 1.00 of a basic solution, 1.24×10−2 of the solid dissolved. What is the concentration of in the final solution?
asked by Anonymous 
ALGEBRA
SOLVE IN LINEAR EQUATION? A university bookstore recently sold a wirebound graph paper notebook for $1.08, and a college ruled notebook for $3.12.At the start of the spring semester, a combination of 50 of these notebooks were sold for a total of $88.68
asked by AMBER 
Logarithmic problem
How do I solve for x in 2(27)^x = 9^(x1)? Thank you!
asked by Anonymous 
math
Let f (x) = tan^(1)((7^(x))) f '(x) =
asked by bobby 
math
Find the linear approximation of f (x) = ln x at x = 1 and use it to estimate ln1.12 L(x) = ln1.12=
asked by bobby 
algebra 2
i need to find all numbers for which the rational expression is undefined p^39p  p^216 please help
asked by karon 
math
f (x) = 5x+7x^(23)) f^1(12) = (f^1)' (12) = g(x) = x^212x+54 for x is an element of [6, infinity) g^1(19) = (g^1)'(19) =
asked by bobby 
chem
three moles of phosphoric acid contains how many moles of oxygen atoms
asked by lisa 
math
a bicycle wheel has a circumfrence of 65in what can i do to find the length of one spoke
asked by nick 
math
what is the theoretical probably of rolling a fair cube and getting a prime number
asked by 6th grader 
applied
1. ______ _____ _____ is computed by taking the sum of the absolute values of the individual forecast errors and dividing by the numbers of errors (n). 2.our job as quantitative analysts is to develop the best ____ ____ between the variable being forecast
asked by bibi please help 
English ACT
When you have a sentence like, "For the wedding we hired photagrapher James Murphy." would you put a comma after photographer or not?
asked by Kylie 
math
write the rate as a fraction in its simplest form 52 miles in 4 minutes
asked by Anonymous 
math
31 lbs of bananas cost $248. How much would 40 lbs cost?
asked by Josh 
English
Could you please check the following sentences? Thank you very much. 1) He gives Coketown human characteristics (not "a human aspect"). 2) Coketown starts to assume human characteristics/connotations He personifies the town. 3) He refers to his students
asked by Matthew 
Chemistry
How does looking at phases of products and reactants show the Estamation of ÄS?
asked by Spacy1996 
Chemistry
How does looking at the number of molecules of products vs. reactants show the Estamation of ÄS?
asked by Spacy1996 
AP Biology
In 1918 a particularly virulent strain of influenza (an RNA virus) wiped out millions of health humans in the prime of their lives. Epidemiologists fear that such a super bug could revisit us in the future. And thus there was quest to find samples of the
asked by Sammy 
writing
Catherine received a 70 on her essay because the vocabulary was basic and there was a lack of clear and active voice. Which of the following areas of her essay were weak? A. Organization B. Mechanics C. Content D. Style
asked by Anonymous 
Grammar School
How can I get 9454 to 3938 amount please tell me how can this possible I'm very confused
asked by Salman Vicky 
hebrew
can anyone help with basic hebrew fill in the blank?
asked by daniel's mom 
English
I misspelt the word "invest in the Pixar project"
asked by Matthew 
math
If f (x) = 8arcsin(x^(2)), find f '(x). Find f'(0.3).
asked by bobby 
math
Let f(x) = (7^(x))* (log base 3 of(x)) f '(x) =
asked by bobby 
direct variation
I need help with this problem as there is no Y in the equation 2X7=0 how would I plot that on a graph? Thank you for your help!
asked by Makela 
Math
8arcsin(x^(2)), find f '(x). Find f '(0.3).
asked by bobby 
6th grade math
35/(2+5)(2^3)15
asked by Katie 
writing
i just had a question. if i write down an essay a sort one can someone read it and tell me if its in the level that i want it to be in and/or give me some suggestions on how to improve it? Please answer because im applying for a program and need all the
asked by lily 
social studies
how does the constitution compare with the articles of confederation? please help!!
asked by taylor 
math
whats the prime factorization of 62
asked by ana 
applies decision making
1. models that's involves chance or risk, often measured as probability value are_______. 2. in many cases ______ ____ _____ is the most important and the most difficult step in quantitative anaysis approach. 3. ______ should be solvable, realistic, and
asked by bibi please help 
math
find the slope if it exists of (7,3) and (11,19)
asked by lynn 
math
convert: 6000 kg to ___ tonnes (metric tons) 6000 kg to ___tons 1 acreft of water to ___gallons 32 psi to ___kpa 10 psfito ___ oz/in^2
asked by Nilan 
Insurance.
Actual payments by an insurance company for losses that happen are called: A. benefits. B. coverage. C. premiums. D. insurable interest.
asked by Ariel 
eth 125
the differences between Arabs, Muslims, and Arab Muslim extremists & fundamentalists
asked by china doll 
math
express the ratio 100 to 60 as a fraction
asked by reid 
math
Let y = ((x^(2))+4)^5. Find the differential dy when x = 4 and dx = 0.4 Find the differential dy when x = 4 and dx = 0.05
asked by bobby 
Astronomy
You've been told the Earth puts out 0.070 [W/m squared] as a global average. What would you predict would be the surface heat flux in [W/m squared] from a planet that is 70% larger in radius than the Earth, but has the same bulk composition. You can assume
asked by Jeremy 
TRIG
IF Y=5+7C0S 4(07). FIND YWHEN 0=42 DEGREES. SMALLEST POSITIVE VALUE OF 0 FOR WHICH Y=1.5
asked by BRASHUNDA 
Math
why does 1/(n(n+1)) converges?
asked by sara 
English
I think I'm tired. I left out part of a sentence, again. Thank you.. 1) How much did you earn from selling your first Apple computers? 2) The assertion of the predominance of the church of England was favourably greeted by most people, who had felt
asked by Matthew 
math
2/3 x n = 4/9
asked by alex 
math
would you divide 65 by 3 to find the lenght
asked by nick 
to ms.sue
i still don't get what i put down. ???????????????????????????????????????
asked by Celest