Questions Asked on
December 11, 2010

chemistry
which solution has the highest concentration of hydroxide ions? a ph=7.93 b ph=12.59 c ph=7.00 d ph=9.82 e ph=3.21 i know the answer is 7 but why is it seven? would it be different if it said hydronium ions?
asked by jessie 
chemistry Molarity
You have 353 mL of a 1.25 M potassium Chloride solution, but you need to make a 0.50 M potassium Chloride solution. How many milliliters of water must you add to the original 1.25 M solution to make the 0.50 M potassium Chloride solution
asked by Kevin 
chem
Some sulfuric acid is spilled on a lab bench. It can be neutralized by sprinkling sodium bicarbonate on it and then mopping up the resultant solution. The sodium bicarbonate reacts with sulfuric acid as follows. 2 NaHCO3(s) + H2SO4(aq) > Na2SO4(aq) + 2
asked by hannah 
Chemistry
The combustion of carbon disulfide in the presence of excess oxygen yields carbon dioxide and sulfur dioxide: CS2(g)+3O2(g)>CO2(g)+2SO2(g) The combustion of 17.2 g of CS2 in the presence of excess oxygen yields __________ g of SO2.
asked by Dante 
Math
The volumes of soda in quart soda bottles are normally distributed with a mean of 32.3 oz and a standard deviation of 1.2 oz. What percentage of bottles contain less than 32 oz of soda?
asked by Deb 
trig
simplify cos(30+x)+cos(30x)
asked by Anonymous 
Math  Geometric Series
Find the sum of the geometric series 128  64 + 32  . . . to 8 terms. a) 85 b) 225 c) 86 d) 85/2 e) not possible
asked by Robo123 
chem
Which compound listed below has the greatest solubility in water? CdCO3 Cd(OH)2 CaF2 AgI ZnCO3 how can i tell which on to choose, no matter what compounds are listed?
asked by jessie 
physics
A 0.150kg ball, moving in the positive direction at 12 m/s, is acted on by the impulse of 4N*s what is the balls final velocity
asked by cww 
Math
maria's bicycle has a diameter of 64 cm. as she rides at the speed of 21.6 km/h, she picks up a stone in her tire. draw a graph that shows the stone's height above the ground as she continues to ride at this speed for 2 s more. can someone please help me
asked by Allison 
algebra
the system of equations 3x 6y=20 and 2x4y=3 Is dependent consistent inconsistent independent I think its inconsistent because somehow i ended up with 12=49.. can u show me the work too.I think i did it wrong.
asked by CAs 
Chemistry
The combustion of carbon disulfide in the presence of excess oxygen yields carbon dioxide and sulfur dioxide: CS2(g)+3O2(g)>CO2(g)+2SO2(g) The combustion of 17.2 g of CS2 in the presence of excess oxygen yields __________ g of SO2.
asked by Dante 
physics
A child of mass 40 kg stands beside a circular platform of mass 90 kg and radius 1.6 m spinning at 2.8 rad/s. Treat the platform as a disk. The child steps on the rim. a) What is the new angular speed; b) She then walks to the center and stay there. What
asked by applebottom 
accounting
Perez Company began operations in 2009. Since then, it has reported the following gains and losses for its investments in trading securities on the income statement: 2009 2010 2011 Gains (losses) from sale of trading securities $ 15,000 $(20,000) $ 14,000
asked by weeli 
math
A bicycle wheel of diameter 26 inches is rolled through an angle of 720 degrees. how far has the wheel moved?
asked by Pedra 
math
Trapezoid ABCD, top and bottom are parallel. Left is 45, bottom is 60, right is 30, top is unknown. Trapezoid EFGH is similar to ABCD, top and bottom are parallel. Top is 10, other sides are unknown. Area of ABCD is 9 times larger than EFGH. What is the
asked by olav 
PHYSICS
A toy car in the figure below runs off the edge of a table that is h = 1.375 m high. The car lands d = 0.375 m from the base of the table. How long did it take the car to fall?
asked by Jay 
Physics
A fixed 0.15 kg soliddisk pulley with a radius of 0.075 m is acted on by a net torque of 6.8 m·N. What is the angular acceleration of the pulley?
asked by Angela 
Math
Use the 689599.7 rule to solve the problem.  The amount of Jen's monthly phone bill is normally distributed with a mean of $53 and a standard deviation of $11. What percentage of her phone bills are between $20 and $86?
asked by Deb 
Math
Assume that math SAT scores are normally distributed with a mean of 500 and a standard deviation of 100. A score of 560 reprecents what percentile? Please round answer to the neareast tenth.
asked by Deb 
physics
A 70 kg painter is painting the wall of a building. He stands on a horizontal board of length 4.7 m and mass 15 kg, suspended from vertical ropes attached to each end. If the painter stands 2.0 m from one end of the board, what would the tensions in the
asked by devin 
Physics
The blades of a fan running at low speed turn at 200 rpm. When the fan is switched to high speed, the rotation rate increases uniformly to 340 rpm in 5.92 s. (a) What is the magnitude of the angular acceleration of the blades? (b) How many revolutions do
asked by Kelsey 
physics
Calculate the period of a ball tied to a string of length 0.3 m making 1.9 revolutions every second.
asked by jeremy 
physics
A turntable with a moment of inertia of 0.014 kg*m2 rotates feely at 2.7 rad/s. A circular disk of mass 500 g and diameter 22 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. rad/s b) what is
asked by applebottom 
Math
For a model rocket, the altitude h in meters, as a function of time t, in seconds, is given by h=68t8t^2. after how many seconds will it hit the ground?
asked by Pedro 
Physics  Hellp Really Stuck!
1. A 0.20 kg object moves at a constant speed in a horizontal circular path of radius "r" while suspended from the top of a pole by a string of length 1.2 m. It makes an angle of 62 degrees with the horizontal. What is the speed of this object? 2. An
asked by Jennifer 
math
Explain why the angle relationship shown are not possible triangle angles 2x15 3x17 4x+12
asked by liliana 
11th grade
what is the gerund or gerund phrase in the sentence. Cheering the team gave me a sore throat.
asked by Anonymous 
statistics
Given the data 22,29,21,24,27,28,25,and 36  and using the range rule of thumb  what is the standard deviation?
asked by Deb 
Calculus AB
The volume V or a cone (V = 1/3 π r² h) is increasing at a rate of 28π cubic units per second. At the instant when the radius r of the cone is 3 units, its volume is 12π cubic units and the radius is increasing at 0.5 unit per second. a) At the instant
asked by Rahul 
physics
Small rockets are used to make tiny adjustments in the speeds of satellites. One such rocket has a thrust of 35 N. If it is fired to change the velocity of a 71500 kg spacecraft by 63 cm/s, how long should it be fired?
asked by asas 
physics
Before a collision, a 28 kg object is moving at +13 m/s. Find the impulse
asked by cc 
math
projectiles what is the formula? Question A firework company is designing fireworks so that they can explode above a certain height. the fireworks are fired from the ground at an initial velocity of 160 ft per sec, what is the range of times for the
asked by christian 
Geometric series  Check my answer
What is the first term in a geometric series with ten terms, a common ratio of 0.5 and a sum of 511.5? I got 256 as my answer. 511.5=a1[1(.5)^10]/11/2 511.5=a1(1023/1024)/1/2 511.5=a1(1023/512) > divide by both sides 256=a1
asked by Robo123 
physics
A circular disk of mass 0.2 kg and radius 24 cm, initially not rotating, slips down a thin spindle onto a turntable (disk) of mass 1.7 kg and the same radius, rotating freely at 3.4 rad/s. a) Find the new angular velocity of the combination; rad/s b) The
asked by applebottom 
chemistry
The solubility of nickel (II) carbonate at 25 degrees celsius is 0.042 g/L. Calculate Ksp for nickel (II) carbonate. thanks
asked by amy 
Physics
a barefoot fieldgoal kicker imparts a speed of 30 m/s to a football at rest. If the football has a mass of 0.50 kg and time of contact with the football is 0.0025 s, what is the force exerted on the foot?
asked by Jesse 
Elem Algebra
solve the formula for specified variable V=BQT for B B = ____
asked by Lindsey 
math
Aki spent 3/8 of his pocket money on food, 2/5 of the rest on transport and returned the remaining amount to his mother. What fraction of the money did he give back to his mother?
asked by Donald Crentsil 
College Physics
An object initially at rest experiences an acceleration of 1.4 m/s^2 for 5.0s and then travels at that constant velocity for another 7.0s. What is the object's average velocity over the 12s interval?
asked by Kelly 
PHYSICS
A toy car in the figure below runs off the edge of a table that is h = 1.375 m high. The car lands d = 0.375 m from the base of the table.How fast was the car going on the table?
asked by HELP 
Chemistry
Which of the following oxides yield an acidic solution when dissolved into water? P4O10 Na2O ClO7 Fe2O3 Thanks for any help.
asked by Jennifer 
exam study math guide CRUICAL
The average of Anne's, Sara's, and Julie's test score is 72. Julie scored 100 and Anne scored 10 points higher than Sara.what were annes and saras scores?
asked by riley 
algebra
The mathematical model C(x)=800x + 20,000 represents the cost in dollars a company has in manufacturing x items during a month. Based on this, how much does it cost to produce 500 items?
asked by renee 
calculus
A 6foot man walks away from a 16foot lamppost at a speed of 5 ft/sec. Find exactly the rate at which his shadow is increasing in length.
asked by Madeline 
Word Problem  Check Answer (geometric Seq)
1) Suppose five people are ill during the first week of an epidemic and that each person who is ill spreads the disease to four people by the end of the next week. By the end of the tenth week of the epidemic, how many people have been effected by the
asked by Robo123 
Math
a boat starts at point A, moves 3km due north, then 2 km due east, then 1 km due south, and then 4 km due east to point b. Find the distance AB
asked by Anonymous 
college
The angle of elevation from point A to the top of a vertical pole is 30.0 degrees. At point B, 6 meters closer to the base of the pole and on a line through the base of the pole and point A, the angle of elevation to the top of the pole is 37.0 degrees.
asked by Ashley 
chemistry
What is the molarity of the resultant MgCl2 solution formed by mixing 100 cm3 of 0.5 M MgCl2 solution and 150 cm3 of 0.9M MgCl2 solution?
asked by rebeca 
math
6x8 x+= 6x8=48
asked by pavleen 
English
1. We watched TV for two hours. 2. We watched TV at night/ at the shop. 3. We watched (or have watched) TV by the time he arrived. 4. We watched (or have watched) TV by 7 p.m. 5. We watched TV by day. 6. We watched TV by the table. 7. We have watched TV
asked by rfvv 
chemistry
What is the pOH of a 0.032 M Ca(OH)2 (strong base) solution? i solved it by doing 14=log (0.064) 141.19= 12.81 but the right answer is 1.19, why? i thought the OH in the problem meant i had to use 14?
asked by jessie 
physics
A cylinder with a diameter of 23 cm rolls with an angular speed of 0.30 rad/s on a level surface. If the cylinder experiences a uniform tangential acceleration of 0.022 m/s2 without slipping until its angular speed is 1.01 rad/s, through how many complete
asked by Renee 
Earth
Where is Greenland on Pangaea?
asked by Jan 
math
two spherical cantaloupes of the same kind are sold at a fruit and vegetable stand. The circumference of one is 60cm and that of the other is 50cm. The larger melon is 1 1/2 times as expensive as the smaller. Which melon is the better buy and why?
asked by Anonymous 
Math
Scores on a test are approximately normally distributed with a men of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students. What is the bottom cutoff for an A grade? Please round answer to the nearest whole number
asked by Deb 
chemistry
A saturated solution of PbSO4 has [Pb^2+] = 1.35E4M. What is the concentration of SO4^2? thanks
asked by amy 
chemistry
How many ml of water at 10 degrees c must be added to 75 ml of water at 35 degrees c to obtain a final temperature of 19 c?
asked by Sai 
physcis
a particle moving at a velocity of 6 m/s in the positive x direction is given an acceleration of 3.9m/s^2 in the positive Y direction for 3.4s. what is the final speed of the particle? answer in units of m/s
asked by vanessa 
Intermediate Accounting
During 2009 Bradley Corporation issued for $110 per share, 5,000 share of $100 par value convertible preferred stock. One share of preferred stock can be converted into three shares of Bradley’s $25 par value common stock at the option of the preferred
asked by cyndi 
accounting
Houser Appliances accounts for all sales of its merchandise on the installment basis. Following is the unadjusted trial balance at 12/31/12. Cash $45,000 Installment accounts receivable—2010 20,000 Installment accounts receivable—2011 50,000
asked by weeli 
french
what is rinétede, ropterég and miénocoser? plz anser! thx :)
asked by jenn 
math
There is on large rectangle ABCD, top line is AD and bottom is BC. A line is drawn from the top to bottom called GH. A line is drawn from left to right called EF. AEFG is Rectangle 1. EBHF is Rectangle 2. GHCD is Rectangle 3. All three rectangles are
asked by olav 
Math
3x6y=12 find the slope, y intercept and general equation
asked by dylan 
Calculus
On an 18hole golf course, there are par3 holes, par4 holes and par5 holes. A golfer shoots a par of 70 for the 18 holes. There are twice as many par4 holes as par5 holes. How many of each type of hole are there on the golf course?
asked by Cyndy 
physics
The pole vault landing pad at an Olympic competition contains what is essentially a bag of air that compresses from its "resting" height of 1.1 m down to 0.1 m as the vaulter is slowed to a stop. (a) What is the time interval during which a vaulter who has
asked by student 
Intermediate Accounting
Prepare all the necessary journal entries to record the following transactions: 1. Sale of a 20 year convertible bond (dated March 1, 2001) with a face value of $1,000,000, interest rate 5%. The bonds were sold 4 months later on June 30, 2001 at 98 plus
asked by cyndi 
English
A: Hello. B: Hello. May I speak to Mina? A: This is she. B: Hi, Mina. I am Jake. A: Hi, Jake. What's up? (Is the expressions 'I am Jake' correct in a telephone conversation? Do we have to use 'This is jake'?)
asked by rfvv 
physics
Two spheres are placed so that their centers are 2.9 m apart. The force between the two spheres is 2.60 multiplied by 1012 N. What is the mass of each sphere if one sphere is twice the mass of the other sphere?
asked by DESPERATE 
circle geometry triangles
how do u construct a circle that is circumscribed of a triangle? how do u constuct a circle that is inscribed in a triangle? i am a bit confused and I have finals next week!
asked by Skylar 
Chemistry
A 3.23 gram sample of a sodium bicarbonate mixture was reacted with excess acid. 48.52 mL of the evolved gas was collected over water at 0.930 arm and 23.0 degrees Celsius. What is the percentage of sodium bicarbonate in the original mixture? The pressure
asked by Tichele 
social science
Suppose that you were head of a family planning agency in India. How would you design a scientific study to determine the effectiveness of different approaches to population stabilization? How would you account for factors such as culture, religion,
asked by jim 
Analytic Geometry
Express by an algebraic equation the statement that the line joining P(x,y)to the point (12,5) has an inclination of arctan 1/3. please help...thanks
asked by Jean 
English
Has anyone read the Crucible Act 1? 1. I can't find where the Putman's reveal that they sent for " ". At first I thought it was Rev. Hale but it was Parris who sent for him. and then I thought Mercy but that was who Mrs. Putman sent for not both the
asked by Amy 
math
with clear illustrations and examples explain how arithmetic and geometric progression can be used to solve problems related to a)construction of business b)banking business c)production/operation function
asked by shadrack 
physics
A 4.0 kg pulley of radius 0.15 m is pivoted about an axis through its center. What constant torque is required for the pulley to reach an angular speed of 25 rad/s after rotating 6.0 revolutions, starting from rest?
asked by erik 
Chemistry
If 50.0 kJ of heat are added to a 20.0 gram ice cube at 5.00 degrees Celsius, what will be the resulting state and temperature of the water? I need some serious help with this! I think I'm making it much harder than it really has to be.
asked by Tichele 
Gen Chemistry
52.8 mL of a calcium chloride solution with unknown concentration was treated with phosphoric acid to remove all of the calcium ions in the form of a precipitate. The precipitate was filtered, dried and was found to have the mass of 3.9565 g. What was the
asked by Kevin 
General Chemistry
The Henry's Law constant for O2 in water is 1.28 x 10 ^ 3 M/atm. How many grams of O2 will dissolve in a 12 L fish tank on a day when atm is .977 and air is 18% O2? Show steps
asked by Sarah 
PHYSICS
You accidentally throw your car keys horizontally at 10.0 m/s from a cliff 78 m high. How far from the base of the cliff should you look for the keys?
asked by HELP 
Intermediate Accounting
On January 4, 2002, Wynn, Inc., bought 15% of Parr Corporation’s common stock for $60,000. Wynn appropriately accounts for this investment by the cost method. The following data concerning Parr are available for the years ended December 31, 2002 and
asked by cyndi 
Intermediate Accounting
Information relating to the capital structure of Parke Corporation is as follows: ` December 31 2008 2009 Outstanding shares of: Common stock 90,000 90,000 Preferred stock, convertible into 30,000 shares of common 30,000 30,000 10% convertible bonds,
asked by cyndi 
physics
The blades of a fan running at low speed turn at 200 rpm. When the fan is switched to high speed, the rotation rate increases uniformly to 340 rpm in 5.92 s. How many revolutions do the blades go through while the fan is accelerating?
asked by Kelsey 
Physics
A m = 1.4 kg object moving at v = 15 m/s collides with a stationary 2.0 kg object. If the collision is perfectly inelastic, how far along the inclined plane (37degrees) will the combined system travel? Neglect friction.
asked by Sandi 
statistics
Computer Services wants to estimate the mean number of hours college students use on campus computers each day. They want to be within .1 hour of the true value with 99% confidence. From a previous study, the standard deviation is assumed to be .6 hour.
asked by John Davis 
College Algebra  Chemistry
A goldsmith has two gold alloys. The first alloy is 25% gold and the second is 55% gold. How many grams of each should be mixed to produce 40 grams of an alloy that is 43%?
asked by Lyanne 
College Algebra
Solve the system: x + y + z = 1 2x + 2y + 5z = 1 5x + 2y + 3z = 8 what is the value of x in the solution?
asked by Eli 
Intermediate Accounting
Wolf Company issued 1,000 of its $1,000 face amount, 20year bonds on June 30, 2010, for $1,020,000. Each bond carries five detachable stock purchase warrants, each of which entitles the holder to purchase for $60 one share of Wolf’s common stock. On
asked by cyndi 
Gen Chemistry
i got the moles of Ca3(PO4)2=0.01275549 but how do i covert that to moles of CaCl2? using the stoichiometric ratio which is 1:1 or am i doing something wrong
asked by Kevin 
physics
A 10 kg moving object has kinetic energy of 90 J. What is the magnitude of its momentum? [Give answer to within 2 decimal places and use proper symbols as in textbook to indicate units].
asked by Anonymous 
College Chemistry
48.70 mL of an HCl stock solution was transferred into a 500 mL volumetric flask and filled to the mark. 47.67 mL of the diluted solution was titrated with 0.179 M NaOH and found to have the concentration of 0.885 M. What is the concentration of the stock
asked by Mark 
Analytic Geometry
Find the value of x if the slope of the line segment joining (3/10,6) and (x,4) is 5.
asked by Jean 
Math
What steps do I take in order to solve : (101100) = .512 times (x/.5) solve for x and show steps
asked by MAX 
Physics
A 15500 N automobile travels at a speed of 41 km/h northward along a street, and a 7000 N sports car travels at a speed of 65 km/h eastward along an intersecting street. a)If neither driver brakes and the cars collide at the intersection and lock bumpers,
asked by Kelsey 
math
a rectangular plot of land is to be seeded with grass. If the plot is 22m x 28m and a 1kg bag of seed is needed for 85m squared of land, how many bags of seed are needed?
asked by Anonymous 
Chemistry
If 30.0 g of H2 were used, how many grams of NH3 would be made?
asked by Stephanie 
ALGEBRA
multiply r^2+7r+10/3 by 3r30/r^25r50
asked by K 
Intermediate accounting
Rosson Corporation, which began business on January 1, 2008, appropriately uses the installment sales method of accounting for income tax reporting purposes. The following data are available for 2008: Installment accounts receivable, 12/31/2008 $200,000
asked by cyndi 
georgia history
Sherman's Atlanta campaign battles what is the date of the battle where is the location ,why is particular battle significant in the civil war,
asked by Daniel 
ALGEBRA
divide m^2n^3/p^3 by mp/n^2
asked by k 
Chemistry
The pH of a buffer prepared from .30M H2X2O4 and .15M Na2C2O4(Ka of H2C2o4 is 5.6x10^2
asked by Denny 
Math
Diven the data 3.5,1.6,2.4,3.7,4.1,3.9,1.0,3.6,4.2,3.4,3.7,2.2, and using the range rule of thumb, what is the standard deviation?
asked by Deb 
physics
Two boxes are similar. The larger box has a volume that is 64 times the volume of the smaller box. What is the ratio of the larger box's height to the smaller box's height? write the fraction as a decimal
asked by Richard 
Economics
Topic Each students will pick three things to write a consumer report on. It's your choice. CompareFor each item that you pick you will need to pick two other items to compare it against. (if you choice restaurants, then you need to pick one, then pick
asked by Brian 
English
Posted by rfvv on Thursday, December 9, 2010 at 11:58pm. Posted by rfvv on Thursday, December 9, 2010 at 10:03pm. 1. We had to cook the turkey for six hours. 2. We had to cook the turkey in six hours. 3. We had to cook the turkey until six hours. 4. We had
asked by rfvv 
chemistry
Hi, I've watched a tutor solve a simple dilution solutions problem on video. There's a calculation in that problem I wish you could clarify for me. It goes like this: Approximately what volume of water is needed to dilute 25.0 mL of 18.0 M sulfuric acid to
asked by Cliff 
hsm220
Is the Statement of Opportunity the mission statement or Statement regarding equal opportunity?
asked by Anonymous 
physics
A ball has a mass of 0.14 kg and is pitched w/ velocity of 38 m/s. The batter hits the ball & departs w/ a velocity of 58 m/s. Contact time b/w the bat and ball is 4.0 x 103seconds. What is avg force exerted on ball?
asked by jennifer 
Math (sequence)
Find the first four terms of each sequence. A1= 2 A2=5 An=An1 + An2, n≥3
asked by Robo123 
algebra
If a bateria culture starts with 4000 bateria and doubles every 20 minutes, how many minutes will it take the population to reach 39000?
asked by Tracy 
math
show that the points A(0,4) B(3,1) C(3,1) lie on the circle whose centre is (0,1). find the length of its radios
asked by lalola 
ALGEBRA
divide 40x/64y by 5x/8y
asked by K 
Intermediate Accounting
Island Builders, Inc., has consistently used the percentageofcompletion method of accounting for construction type contracts. During 2004 Island Builders started work on a $9,000,000 fixedprice construction contract that was completed in 2006, Island
asked by cyndi 
math year 3
identify the vertex and axis of symmetry y=2x^228x+91
asked by ed 
English
We didn't have to go to school yesterday. (What is the meaning of the sentence? Is it #1 or #2? 1. We didn't go to school yesterday because it was useless. . 2. We went to school yesterday, but it was useless. )
asked by rfvv 
algebra
multiply r^2+7r+10/3 by 3r30/r^25r50
asked by K 
physics
Please show work to how you find this answer. A baseball is thrown with an initial velocity of 30 m/s at an angle of 45 degrees. Neglecting air resistance, how far away will the ball land?
asked by Christian 
psycology
Do an ESSAY Using Kohlberg's three levels and six stages of moral reasoning, create a character that passes through each stage and explain how she/he responds to moral dilemmas present at each stage.
asked by robert 
marketing
Can someone please help me with this? I really just do not know where to start researching for the answer, where are some good places to look? Develop a research proposal in the form of a PowerPoint presentation of 8–15 slides. Your proposal should
asked by Brenda 
10th grade
A volume is measured experimentally as 4.5 mL. What is the percent error, given that the correct value is 4.17 mL? answer units in %
asked by megan 
11th grade
What is the most important reason that sediments at beaches are usually rounded and smooth?
asked by Grettel 
Binomial Coefficients
Evaulate: n n2 (expression should be in large brackets) I got n! /n2! 2! . I know this is wrong but am not sure what to do next.
asked by Robo123 
BiologyRespiratory System
What's the difference between capillaries, pulmonary artery and pulmonary vein?
asked by Emily 
Legal aspects healthcare
Healthcare professionals who have a “need to know” access to medical records have a legal and an ethical obligation to protect the confidentiality of the patient information. I think it is not true, right?
asked by Nick 
math
2x5= negative x negative= positive 5x2=10 5x2=10
asked by pavleen 
Analytic Geometry
Express by an algebraic equation the statement that the line joining P(x,y)to the point (12,5) has an inclination of arctan 1/3.
asked by Jean 
Organic Chemistry
What information can be obtained from the hydrolysis of a peptide of unknown composition? What information cannot be obtained by from the hydrolysis experiment?
asked by David Le 
College Algebra
Solve the system: 4x3y=3 y=6x13 What is the value of y in the function?
asked by Rudy 
ALGEBRA/AM I CORRECT?
THANK YOU! Solve by substitution 3x+6y=6; 6x+y=40 My WORK: Y=40+6X; 3X+6(40+6X)=6; 3X+240+36X=6; x=5.51; y=40+6(5.51); y=40+33.06; y=6.94 (5.51,6.94) Is this right???
asked by Jessica 
Intermediate Accounting
On February 24, 2006, Bart Company purchased 2,000 shares of Winn Corporation’s newly issued 6% cumulative $75 par preferred stock for $152,000. Each share carried one detachable stock warrant entitling the holder to acquire at $10, one share of Winn
asked by cyndi 
English
1. We talked until late. (What is the part of speech of 'late'? Is it an adverb or a noun?)
asked by rfvv 
language infinitives
Some facts are easy enough to memorize. to memorize is the infinitive is it used as an adverb?
asked by michael 
language infinitives
Good study skills are a way to learn. to learn infin. used as an adj.? A person with good study skills is someone to admire. to admire infin. used as an adj.?
asked by michael 
Calculus
if x^2 + y^3 = (x^3)(y^2) then dy/dx = ? thanks
asked by Marc 
can you please check my answers
1) A strategy for health promotion among infants toddlers and young children focuses on educational programs physical fitness activities and a. family planning b.tobacco,alcohol, and drug use. c.Nutrition. d.mental health & menta disorders. 2)The main goal
asked by tiffany 
math
The volume of a ball is 288 pi cm^3. Find the dimensions of a rectangular box that is just large enough to hold the ball. use 3.14 for pie
asked by ray 
Comm
Personal finance classes can help you if you have difficulties making budgets. Looking for verb and verb tense
asked by Maria 
History
Like for economic I know that revolves around the industry and employment. Could someone give some examples of what exactly is social change in the US? Does it involve the people. I'm confused
asked by Amy 
U.S. history
what proplems did the rapid growth of cities pose to U.S.decades following the civil war?
asked by austin 
college math
Use the Reference Angle Theorem to find the exact value of sec(13 pi/6).
asked by Ian 
math
REmove one toothpick to make a true equation IIII=II
asked by jbcbjbi 
Intermediate Accounting
Burr Corporation began operations on January 1, 2007, and at December 31, 2007, Burr had the following investment portfolio of marketable equity securities: In current assets In noncurrent assets Aggregate cost $185,000 $275,000 Aggregate market value
asked by cyndi 
English
We cooked a big turkey. Dad cooked the turkey this year. After 6 hours, the turkey was finally ready. (Is each turkey a large bird or meat from a turkey in the sentence?)
asked by rfvv 
math
If a tank were blocked in (all inlets and outlets are closed) late in the evening with a temperature of 62F a pressure gauge attached to it would read an ambient pressure (14.7 PSIA). The next day, as the sun begins to shine directly on the tank, its
asked by Mike 
physics
at what angle with respect to the horizontal should the shot put be launched if the starting height is 2.0m to have the greatest range?
asked by D 
Earth
What layers of the Earth are the continents sliding on?
asked by Jan 
JUST HELP ON SIGMUND FREUD
what are sigmund freud's major contributions to society?
asked by nini 
Calculus
prove that out of the rectangles under the curve = e raised to the power of xsquared on the x axis and upper vertices on the curve, the one has the largest area the two upper vertices of which are exactly at the points of inflection of the curve.
asked by david 
Algebra
2^(2x+11)=3^(x12) x=?
asked by Tracy 
Algebra
in x^2+14=0, how many solutions do we have? A)2 real solutions B)1 real solution C)2 imaginary solutions Im guessing A
asked by Ally 
Analytic Geometry
Find the value of x if the slope of the line segment joining (3/10,6) and (x,4) is 5.
asked by Jean 
Analytic Geometry
Given that the slope of a line is 91, what is its inclination? please help thanks..:)
asked by Jean 
8th grade
Solve 3r + 18 ¡Ü 6r
asked by Dean 
History
Explain the politcal movements of the 20th century in U.S. domestic life. How are they relevant or not relevant to the "culture wars"?
asked by Carol Ann 
Intermediate Accounting
Total contract price $100,000 Actual costs during 2006 20,000 Estimated remaining costs 40,000 Billed to customer during 2006 30,000 Received from customer during 2006 10,000 16. Under the completed contract method, how much should Hickam recognize as
asked by cyndi 
Analytic Geometry
Express by an algebraic equation the statement that the line joining P(x,y)to the point (12,5) has an inclination of arctan 1/3. Pls. answer
asked by Jean 
English
A sleepover is a type of party when several young people stay for the night at a friend's home. (What is the part of speech of 'when'? Is 'when' a conjunction or a relative adverb? Can we use 'where' instead of 'when'?)
asked by rfvv 
English
A: Would you like me to join you? B: Good. I'd like to join you. (What do you think about the answer B? Is it suitable? What other expressions/answers would you recommend?)
asked by rfvv 
language infinitives
You will need to learn if you are striving for a goal. infinitive is: to learn is it used as an adverb?
asked by michael 
7th grade
The population of nevada is close to 1.6 million, which is about (1)/(5 ) of michigan population. What is the estimated population of michigan?
asked by Anonymous 
Physics
If you throw a cricket ball up into the air and the ball leaves your hand at 1.8m and travel with a speed of 9.7m s. What is the speed at the point it hits the floor. Accerlation due to gravity is 9.8 ms no air resistance
asked by joleen 
Ms. Sue
Ms. Sue could I please receive ur help on my homework. I have to do a presentation and Its a media project which I have to represent, its on the Freedom Writers the book, and two media clips. The media clips are Hannas suitcase and Paperclips. I also got
asked by Sara 
Math
Find a 95% confidence interval for the true population portion. In a survey of 319 female employees of a large company, 29% said that they had experienced some form of sexual harassment while working for the company.
asked by Deb 
Math
using the range rule of thumb to approximate the standard deviation  a distribution of data has a maximum value of 80, a median value 0f 60.5 nd a minimum of 41.  Please round to the nearest tenth.
asked by Deb 
Math  Sum of a Series
Find the sum of the series 23 + 18 + 13 + . . .+ (82) A) 590 B) 590 C) 649 D) 649
asked by Robo123 
math
show which of the following group are collinear and which ones are not a) A(3,3) B(1,0) C(5,3) b)K(3,1) L(5,1) M(1,7)
asked by lalola 
com
Write three sentence using plurals correctly and three sentences using possessives correctly on the topic of how to store personal financial information effectively and efficiently.
asked by sara 
Childcare Manegment /please chech answers
hello i need someone to check these for me? 6) alcohol,drugs,radiation,and pollutants that affect a child development are called a.teratogens b.toxic inhibitors c.tranferal agents. d.phenylanines 10) monstrates an inability to leap over a barrier, his
asked by tiffany 
health care
Compare and contrast the goals of a producer of a health commodity (e.g. a service or a good) versus a producer of a nonhealth commodity
asked by Michell 
History
The U.S. in the 20th century has intervened in a number of places across the globe and fought several wars. What do these wars/"actions" have in common?
asked by Carol Ann 
chemistry
a liquid that has a density of 22 g/mL and a mass of 16 g, how much of the liquid do you have in the container?
asked by Mike 
PreCal
Find the domain for the function f(x)=2x^(2)÷x^(2)6x27
asked by Terri 
math
solve. x^2 + 6x + 13 = 0
asked by Fred 
math
find the distance between each two points in the following a)A(1,7) B)(2,1) b)A(0,0) B)(1,3) c)A(6,9)B)(9,6)
asked by lalola 
math
prove that the four points A(2,4)B(0,1) C(3,1) D(5,2) are the vertices of square
asked by lalola 
Spanish
Need ten names of famous men and women who are of spanish descent
asked by William 
General Chemistry
how many grams of a protein weighing 4500 grams/ mol must be present in 100 ml of water solution to a given osmotic pressure of 18 mm hg at 25 degrees celcius...( use formula of pie = Mrt
asked by Sarah 
English
please I need help to check if my sentence or paragraph correct with five adjectives and five adverbs. I also need to compare the event to similar by using at least three comparatives and three superatives. I recently watched a "lovely old movie called
asked by queen 
Chemistry
How many molecules of water are produced if 2.00 g of ammonia and 4.00 g 02 are reacted together?
asked by RKSS 
finite mathmatics
elimination method 5x + 6y = 75x  3y = 146
asked by Luke 
health
how do you feel the portrayal of sex in the media influences the sexual desicions teens make today
asked by mike 
college math
Express (cos^2t/tan^2t) as an expression that involves only the sine function.
asked by Kelsey 
math year 3
identify the vertex and axis of symmetry y=2x^228x+91
asked by Anonymous 
physics
a bicyclist has a mass of 50 kg. Intial velocity is 20 m/s as she hits the bottom of the hill. Doing no work, she reaches the top of the hill with a final velocity of 5 m/s. What is the vertical height of the hill?
asked by victor 
English
1. Mother told me, "Not to take a long nap." 2. Mother told me,"Don't take a long nap." (I think #2 is right? What about #1?) 3. Every time I have to read out loud, I get so nervous. 4. Each time I have to read out loud, I get so nervous. 5. Whenever I
asked by rfvv 
anatomy
Hemostasis /mechanism or stages
asked by Anonymous 
Math
How could you define the perimeter of a nonsimple closed curve? Give an example in your explanation.
asked by Linda 
language infinitives
If you are restless, there is no solution except to concentrate. to concentrate infin. used as an adverb?
asked by michael 
Physical Science
a net force if 7 N acts on a 7 kg mass over a distance of 5m. How much work did this force accomplish?
asked by Sheana 
english
how could i fix this phrase "when i was spoon feeding her soup"
asked by blaze 
math
15/(5)= x=+ 15/5= 3 3
asked by pavleen 
math
5(5) 0
asked by pavleen 
Math
solve using addition or subtration 12x+9y= 14 6x= 7y  16
asked by dylan 
math
A railing for a deck requires pieces of redwood 4 ft 9 in, 13 ft 9 in, and 4 ft 3 in long. What is the total length of material that is needed?
asked by cookie 
math
solve using square roots: 4(x1)^215 =41
asked by Amanda 
math
prove that each of the following two triangles is right angle a)A,B,C:A)(3,5) B)(1,4) C)(2,2) b)L,M,N:L)(0,4) M)(6,2) N)(3,5)
asked by lalola 
bio 101
how the organism in the diagram has evolved physiologically to become suited to its environmen
asked by ashley 
math
 4cm  (1)   _____     9cm  (2)  (3)      Rectangle 1 & 2 & 3 are similar. What is the area of Rectangle 3.
asked by olav 
history
would fed deficit spending be considering a political issue or economic issue?
asked by Amy 
math
9/(3) + /  =  9/3=3
asked by pavleen 
math
48/(12) + /  =  48 / 12 = 4
asked by Pavleen 
art
what changes when we bring the element that make the earthwork indoor?
asked by Lan 
Math
I don't understand where for North you put 31. The boat moved 1km South and 3km North. Is that how this was done?
asked by Triquenita 
math
Convert 2 PSI to inches of H20.
asked by Mike 
Math
x+2=6 and its under a square root thing
asked by dylan