Questions Asked on
April 17, 2010

chemistry
Sulfur trioxide, SO3, is produced in enormous quantities each year for use in the synthesis of sulfuric acid. S(s) + O2(g) > SO2(g) 2SO2(g) + O2(g) > 2SO3(g) What volume of O2 (g) at 350 degrees Celsius and a pressure of 5.25 atm is needed to completely
asked by James 
College Physics
A 6.76 kg block is attached to a spring with spring constant 36.9 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 57 cm/s. What are The amplitude of the subsequent oscillations?
asked by Anonymous 
Physics
The small archerfish (length 20 to 25 cm) lives in brackish waters of Southeast Asia from India to the Philippines. This aptly named creature captures its prey by shooting a stream of water drops at an insect, either flying or at rest. The bug falls into
asked by Raj 
geometry
An isosceles triangle has two 10.0inch sides and a 2winch side. Find the radius of the inscribed circle of this triangle, in the cases w = 5.00, w = 6.00, and w = 8.00. Then Write an expression for the inscribed radius r in terms of the variable w , then
asked by sarah 
Programming JAVA
1. What is 9.9 + (11 % 8)? 2. Write one line that creates a variable named Pickles that can hold an integer and assign it the value of ten.
asked by Johny 
progamming JAVA
1.Write an algorithm, in English, to solve the following problem. Be sure to include pre and postconditions! 2.Problem: Solve X mod Y for all positive integers. Do so without using multiplication or division. 3.What is (7 / 3) + (4 % 5)?
asked by Johny 
physics
find the thermal stress in a 18 ft long steel beam that embedded in concrete. If the temperature rises by 40 degrees and the beam move a distance of .04 inches on each side. E=30*10^6 psi
asked by stacey graham 
Chemistry
What is the molarity of a nitric acid solution prepared by diluting 250.0 mL of 6.00 M HNO3 to a total volume of 2.50 L?
asked by Anonymous 
Chemistry
Calculate the heat released when 10.0 g of water at 25.0°C cools to ice at 0.0°C. The specific heat of water is 1.00 cal/(g × °C); the heat of fusion is 80.0 cal/g; and the heat of vaporization is 540.0 cal/g.
asked by helpanderson 
plzzz help me with this questionnn
which word is a synonym of the word evolve? a.recession b.decline c.progress d.retrogression plzzzz some1 give me the answer:((
asked by becca 
MAth
500 candidates appeared for a certain test. The mean scores was 59 and variance was 25. Assuming the distribution to be normal. find 1.% of candidates scoring 64 and above. 2. No. of candidates having score between 54 and 69. ( Given : For a s.n.v.z, the
asked by Hemant 
drwis
Which greek base means narrow? 1. sten 2. platy 3. mer 4. xanth
asked by becca 
math
If you wanted to code 94 distinct characters, such as those found on a coputer keyboard, how many dots would the system need?
asked by Lucy 
chemistry
How much ml of H2So4 added to make 0.02M H2So4 solution to make volume 250ml?
asked by unknown 
Calculus
Use the given vector to find a vector b such that compab = 4. a = ‹4, 0, 1› ‹s, t, >
asked by abby 
Electronics
A series circuit consists of a 12V source, a 470ohm resistor(R1), a 330ohm resistor(R2) and a diode. If the diode is reverse biased, what is the value of V(R1) and V(R2)?
asked by Claire 
9th grade
(a8)(a9)
asked by Felicia 
9th grade
(2x1)(x+2)
asked by Felicia 
9th grade
(2y+5)(y3)
asked by Amy 
9th grade
(p7)(p+8)
asked by Maria 
10th grade
(7+p)(8+p)
asked by Josue 
9th grade
(p^27)(p+8)
asked by Elizabeth 
9th grade
(5c9)(5c+1)
asked by Stephanie 
college chemistry
. One possible use for the cooking fat left over after making french fries is to burn it as fuel. Formula (for cooking fat) = C51H88O6 Density = 0.94 g/ml ΔH°f =  1310 kJ/mol. Write a balanced equation of the combustion of cooking fat (the products are
asked by George 
collegeFinancial Services(MBA)
The Hypothetical Finance Ltd has structured a hirepurchase deal. The required to make a down payment of 20 per cent of the investment cost. The hireterm is four years with quarterly payment in advance. The flat rate of interest is 13 per cent. The
asked by Anonymous 
math
(n^2+3)(n+11)
asked by Anonymous 
Math
(3k^2+2)(k+5k^2)
asked by Anonymous 
Algebra
(6h1)(4h^2+h+3)
asked by Anonymous 
Math
(9y^2+2)(y^2y1)
asked by Anonymous 
please help me!
(8q4)(6q^2+q+1)
asked by Anonymous 
chemistry
a fire extignuisher produces carbon dioxide by the reaction between sodium hydrocarbonate and sulfuric acid. if a fire extinguisher is desgined to hold 600.0g of sodium hydrocarbonate calculate : the mass of sulfuric acid required to react with sodium
asked by sarah 
chemistry
if 1.00M solution of NaOH was diluted enough would it eventually become acidic? showing calculations
asked by sarah 
Sociology (Topic;education)
hi.. am dnt a topic in sociology and the topic is Education.I find this topic quite complicated and difficult, there are so many types of system of education.. what is the Compensatory education,,can 1 also have some examples of this types of education so
asked by Taskeen 
English
Thank you very much for your corrections. I have some sentences I'd like you to check. Just say "yes" if they are correct. 1a) The first reform Bill passed in 1832 It is common practice to consider 1832 as the year in which the Victorian age started
asked by Franco 
meaning of Quotes
Some body please tell me the meaning of "early to bed, early to rise...helps a girl to go with other guys"
asked by ravi 
engineering
1)A compressed high resolution chest xray image requires about 8MB of data. most GP surgeries are connected to the NHS network at a speed of 2Mbps. how long would it take to download a set of 6 images. give your answer to second to 2 decimal places. 2)as a
asked by rai 
science
Q. 2. Describe a rocket propelled in 30 degrees north of east with a velocity of 5m/s?
asked by nancy 
Accounting
Hanson Corp uses a process costing system. Materials are added at the start of the process. Beginning inventory for January consisted of 1,900 units (40% complete for conversion) with a cost of $15,000. 10,900 units were started and completed during
asked by Bill 
Health Administration
Hospital costs have grown following the growth of private and public insurance. Describe other factors that could account for some of the growth.
asked by Sara 
physics
A particle of mass m is released from rest at the top of a spherical dome of radius R. how far below the starting point will the particle leave the surface of the dome? how i should solve this?
asked by Anonymous 
business
What type(s) of information does the finance department need?
asked by Anonymous 
Calculus
If f(x) = (e^(x))sin(x) what is the 1000th derivative? Step are needed and the general rule/pattern
asked by Fred 
Physics
If a 5.40g bullet is fired horizontally into a suspended(hanging)10kg block of wood and causes the block, with bullet embedded, to move off with horizontal velocity of 0.30m/s, What is the impact velocity of the bullet?
asked by Anonymous 
Health Administration
According to the medical arms race hypothesis hospitals compete on the basis of: a. costs. b. costs and price. c. quality. d. (b) and (c) are correct.
asked by Ryan 
Chemistry
A 30.00ml sample of 0.1234 M hypobromous acid (HBrO) is titrated with a 0.2555 M KOH solution. The Ka for HBrO is 2.5*10^9 Calculate the pH of the titration mixture at the equivalence point.
asked by Anonymous 
college algebra
3r8s=10 8r+3s=51
asked by pam 
Chemistry
Ethanol is a fuel that can be made from corn. How many kJ of heat energy are released when 3.00 kg of ethanol are burned? C2H5OH(l) + 3O2(g) ¨ 2CO2(g) + 3H2O(g) H = 1406.8 kJ/mol
asked by Marcus 
9th grade
where do i put commas? where were you at 10 am on feburary 14 1992
asked by mar 
statistics
Comparing Variations: 1. For the following exercise, complete the following: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of thumb for each of the data sets. c. Compare the two sets and
asked by shanett 
science
what is the flow of matter and energy??
asked by suzzy 
Math
Can someone please help with this problem? Solve by the elimination method. 7r9s= 58 9r+7s=74 I know that I need to multiply the first equation by 9 and the second equation by 7. The equations look like this: 63r81s= 522 63r+49s=518 After this I get
asked by B.B. 
business enterprise
discuss what will happen to the supply, demand. and price of the soft drink in the shortterm
asked by mahdi 
Geometry
Infinitely many different sectors can be cut from a circular piece of paper with a 12cm radius, and any such sector can be fashioned into a paper cone with a 12cm slant height. (a) Show that the volume of the cone produced by the 180degree sector is
asked by Sarah 
math
you want to find hot the length of a pendulum affects the time the pendulum takes to sing back forth. explain how you would model the situation
asked by Katherine 
math
an alphabet book will have one letter on each page. eight pages will be printed on a single piece of paper.you fold the paper in half.then you fold it in half again and trim the edges. the eight pages appear in order. draw the layout for two sides of the
asked by Katherine 
Geometry/math
The table at right shows measurements made on a circle with a onemeter radius. Each entry in the scolumn is an arc length,and the adjacent entry in the ccolumn is the corresponding chord length, both in meters. Explain why c < s, and determine the range
asked by Sarah 
sociology
You have been asked to address the importance of social institutions as they relate to the study of sociology. In 2–3 pages, address the following: How do studying social institutions help sociologists understand society? Provide 2 examples of prevalent
asked by Denese 
Health Adminstration
Analysts believe that although the medical arms race may have led to quality competition in the 1980s _____ has led to more price competition since the 1990s. a. selective contracting through managed care b. prospective payment c. economies of scale d.
asked by Ryan 
Math
When I solved these two equation: 3x+4y=8 4x+3y=4 I found that neither of the two lines was perpendicular or parallel. Is this correct? Thanks.
asked by B.B. 
Business
Gurinder singh runs a small business that manufactures office furniture. His best selling products are office desks and chairs. Sales turnover has risen but profits have stayed constant. The business is also experiencing cash flow problems. a) Explain 2
asked by Ameena 
Financial Matters
Are there any nontangibles that could impact the value of a business? I was just curious.
asked by Anonymous 
Calculus
Using polar coordinates, evaluate the integral which gives the area which lies in the first quadrant between the circles x^2+y^2=64 and x^2  8x + y^2 = 0.
asked by Salman 
disease
a 4 year old caucasian female tired pale and a picky eater only eats pasta breads hot dogs and artificial fruit punch. I cannot find a blood disorder on her. Please help!
asked by Nancyg 
Geography
1. Which of the following is NOT one of the types of forests that grow in Northern Eurasia? a. midlatitude deciduous forest b. mixed forest (deciduous and coniferous) c. coniferous forest d. chaparral D? 2. The rivers of Siberia, when not frozen, have
asked by y912f 
Chemistry
If you have to write the products of the chemical reaction Fe+O*2( asterisk means subscript),how would you know the charge of Fe in the compound FeO? If the charge is 2+, then the product would be FeO, but if the charge was 3+, then the product would be
asked by Emily 
college physics
A person walks from point A to point B as shown in the figure below. What is the person's displacement relative to A? What is the magnitude? What is the direction ° (counterclockwise from the +xaxis)?
asked by tumcee 
Geography
28. What information would be the most helpful in drawing inferences about hwy certain countries in Southeast Asia have a large number of Muslims? a. knowing what countries in the region were colonized by France b. knowing what countries were ruled by
asked by y912f 
college physics
A person walks from point A to point B as shown in the figure below. What is the person's displacement relative to A? What is the magnitude? What is the direction ° (counterclockwise from the +xaxis)? d question is on exactly is on googl
asked by tumcee 
Accounting
I need help with this problem. Could someone possibly explain to me how to prepare the journal entry for this problem? Prepare journal entries to record each of the following purchases transactions of a merchandising company. Show supporting calculations
asked by Leah 
infants
Is there a special name for a baby scale?
asked by Lena 
chemistry
You have 1.600g mixture of NaHCO3 and Na2CO3. You find that 11.60 ml of 2.00M HCl is needed to convert the sample completely to NaCl, H2O and CO2. NaHCO3 (aq) + HCl (aq) > NaCl (aq) + H2O (l) + CO2 (g) Na2CO3 (aq) +2HCl (aq) > 2NaCl (aq) + H2) (l) + CO2
asked by Monica 
physics
A rubber ball filled with air has a diameter of 25.1 cm and a mass of 0.618 kg. What force is required to hold the ball in equilibrium immediately below the surface of water in a swimming pool? I tried using the equation B = density(fluid)volume(object)g B
asked by Kelsey 
Social Studies
What is the name of the only colony on the South American continent?
asked by Emily 
S.S
Could you drive from Wisconsin to Michigan without crossing another state? If yes, how? If no, why not?
asked by Emily 
America Literature
Why Emerson considered man is an analogy? And What is th relationship between human, god and nature in Emerson's point of view?
asked by Kelly 
America Literature
Why is Whitman the father of America's poet in Emerson's point of view?
asked by Kelly 
algerbra
Please help to change to an inequality the average speed was between 120 and 130 mph.
asked by renee 
Geography
The direction from San Antonio, Texas to New Orleans, Louisiana is northeast right?
asked by Alec 
physics
A shaving/makeup mirror is designed to magnify your face by a factor of 1.33 when your face is placed 20.0 cm in front of it. (a) What type of mirror is it? (b) Describe the type of image that it makes of your face. (c) Calculate the required radius of
asked by Esmeralda 
physics
A shaving/makeup mirror is designed to magnify your face by a factor of 1.33 when your face is placed 20.0 cm in front of it. (a) What type of mirror is it? (b) Describe the type of image that it makes of your face. (c) Calculate the required radius of
asked by Esmeralda 
elemmanarty algebra
Divide xy to 3rd power 3xy to 2nd power +2x to 2nd power y by xy
asked by Anonymous 
physics
A shaving/makeup mirror is designed to magnify your face by a factor of 1.33 when your face is placed 20.0 cm in front of it. (a) What type of mirror is it? (b) Describe the type of image that it makes of your face. (c) Calculate the required radius of
asked by Esmeralda 
Math. Did I get the right answer?
Identify the properties ( 5 + 3) + 4 = ( 3 + 5) + 4 = Communitive property ( 3 × 2) × 8 = 3 × ( 2 × 8) = associative property
asked by BWB 
Math
Find simple intrest principal= $300 Rate= 10% Time 3 and a half years
asked by christopher 
Chemistry
Estimate the value of the equilibrium constant at 550 K for each of the following reactions. 1) 2CO(g)+O2(g)>2CO2(g) 2) 2H2S(g)>2H2(g)+S2(g) i used the equation K=e^(delta G/RT) for the first problem and got K=1.40*10^49 but it was wrong. Is there a
asked by Kyle 
Math
Find total amount in compound interest account. $9000 IS compounded semiannually at a rate of 11% for 20 years
asked by christopher 
CJS 240
what are any programfederal, state, or local that emplifies the concept of social structure, social process or social conflict theories? Or any references would be even better.
asked by sasha 
Finance
1. Following is the projected net income stream associated with the use of Zartek technology. (Note: this net income stream does not take into account that Zartek’s owners invested $2,000 to develop Zartek in Year 0.) Globus Maximus Enterprises would
asked by Anonymous 
Math
Find the total amount in the compound intrest account. $4000 is compounded annually at a rate of 11% for 3 years. (Round the nearest hundredths as needed)
asked by christopher 
Algebra
Equation: 2x/5x/3=5 (2x/5 and x/3 is a fraction) I know that you are suppose to combine like terms, like x, but don't know what I need to do, since they are fractions. Help please.
asked by Carrie 
math
How do you do this question? A shipment of 25 television sets contains three defective units. In how many ways can a vending company purchase four of these units and receive (a) all good units, (b) two good units, and (c) at least two good units.
asked by joe 
History
How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia, and Europe?
asked by Joe 
Social Studies
How do ethnic, racial, and religious hatred weaken society??
asked by Kaitlyn 
English
Thank you so much for helping me. I really hope you could check a few more sentences on the same subject. 1) She understands at last that her love for Heathcliff is not a romance. Actually, it is concerned with a breaking through beyond the self. 2) She
asked by Franco 
Please check answers
(2)7=2^7 2^5 = 2*2 = 4 * 2= 8 * 2 = 16 * 2 = 32
asked by Bart 
Algebra II
A math book said that the answer to (1 + 1/n) to the nth power was 2.5 when n=1. It seems like the wrong answer to me and that the answer should be 2. Please let me know if I am right or explain if I am wrong.
asked by Liz 
writing
What is a claim in an argument with argument is intended to support?
asked by Diane 
writing
a word or phrase thus, therefore, that shows colculsion up ahead?
asked by Diane 
english writing
what is a word or phrase thus,therefore that shows conclusion up a head?
asked by Diane 
english writing
what is a true nonsubjective factual claim?
asked by Diane 
english writing
what claim is about a matter of fact?
asked by Diane 
geometry
3. For each of the following, tell how many noncongruent triangles PQR fit the given description, and find the size of angle Q. Make a separate diagram for each case. (a) p = 3, q = 5, angle P = 27 degrees (b) p = 8, q = 5, angle P = 57 degrees (c) p = 7,
asked by sarah 
algerbra
Translate to an inequality.Use the varible x the price of a baseball glove is at most $35.5o
asked by renee 
Math
Find total amount in the compound intrest account. $2000 is compounded quarterly at a rate of 8% for 6 years. (Round to nearest Hundereths as needed)
asked by christopher 
trig
how do you use doubelangle formulas to find sin, cos, and tan
asked by matt 
math/geometry
4. The wheels on Devon’s bike have rinch radii. After the front wheel picks up a tack, Devon rolls another d feet and stops. How far above the ground is the tack? Then,(Continuation) How many degrees does the wheel turn for each foot that it rolls?
asked by sarah 
college
What are somenotable similarities between Australian and North American cities?
asked by Betty 
Geometry
Consider again the sphere of radius 5 centered at (2, 3,−6). Describe the intersection of the sphere with the xzplane. Write an equation (or equations) for this curve.
asked by Yadlay 
algerbra
The price of an amusment park ticket is greater than or equal to $24.What is the inequality?Please help me to understand. Thanks
asked by renee 
Trig
4. Asked to simplify the expression sin(180−è), Rory volunteered the following solution: sin(180−è) = sin 180−sin è, and, because sin 180 is zero, it follows that sin(180−è) is the same as −sin è. Is this answer correct? If not, what is a
asked by sally 
chemistry
A chemist wishes to determine the rate of reaction of zinc with hydrochloric acid. The equation for the reaction is: Zn(s) + 2HCl(aq) > H2(g) + ZnCl2(aq) A piece of zinc is dropped into 1.00 L of 0.100 M HCl and the following data were obtained:
asked by Juggy 
Trig
A. Find simpler, equivalent expressions for the following. Justify your answers. (a) sin(180 + è) (b) cos(180 + è) (c) tan(180 + è) B. Show that there are at least two ways to calculate the angle formed by the vectors [cos 19, sin 19] and [cos 54, sin
asked by sally 
Math
Use rational exponents to simplify the radical. If rational exponents appear after simplifying, write the answer in radical notation. 20sqrt(x^12)
asked by Help please 
Math
Use rational exponents to simplify the radical. If rational exponents appear after simplifying, write the answer in radical notation. 3sqrt(2)/ 5sqrt(2)
asked by Help please 
physics
A stairwell is supported by two circular steel rods at one end. The other end supported above. The two steel rods are subjected to a total load of 12,800lbs. The rods are 24 ft long and E=30*10^6 psi. Select the rod based on the following specs. The rod
asked by stacey graham 
physics
A large chandelier weighing 1500lbs. is suspended from the roof of a theater lobby. The steel pipe from which it hangs is 20ft long. Determine the size of the pipe necessary to carry chandelier safely. Use A36 steel. What is the resulting elongation of the
asked by stacey graham 
math
The length of a drawing of a tool is 3/8 of the length of the actual tool. If the length of the drawing of the tool is 6 inches, what is the length,in inches ofthe actual tool?
asked by john 
math
If x + 3/2 is an integer, then x must be what
asked by john 
physics
Find moment of Inertia Ix and Iy for the built up steel beam. The 1"x32"plate is centered on the wide flange web together with the 2"x16" plate. The steel beam is a W18x71 (Area=20.8in^2 diameter=18.47 tw=0.495 Ix= 1170in^4 Iy= 60.3in^4) To get better
asked by stacey graham 
Physics
The length of a simple pendulum is 0.72 m, the pendulum bob has a mass of 305 grams, and it is released at an angle of 10° to the vertical. a) With what frequency does it vibrate? Assume SHM. (b) What is the pendulum bob's speed when it passes through the
asked by Luricela 
physics
A space probe lands on the icy surface of Europa, a moon of Jupiter. It weighs a set of known masses. The results are shown below. Mass (kg) 0.1 0.2 0.3 0.4 0.5 Weight (N) 0.15 0.30 0.36 0.55 0.68 a) i) Plot a graph of this data on the axes given (done)
asked by Eloise 
Math
If xy=7 and xy=5 then x2 yxy2=
asked by John 
math
__X+3___ is an integer, than X must be? 2
asked by John 
chemistry
What is the pH of the solution created by combining 2.20 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)?
asked by bme1 
chemistry(check my asnwer)
Why doesn't potassium ion K+ from KMnO4 appear in the following two unbalanced equations: MnO4– + C2O42– Mn2+ + CO2 MnO4– + Fe2+ Mn2+ + Fe3+ ? A. KMnO4 is not added to either reaction. B. The presence of K+ would result in a net positive charge in
asked by eng 
chemistry
Wich of the following is NOT true about the blank for the experiment, 'Analysis of a Complex Iron Salt'? A. A blank is titrated to correct for any reactive impurities in the solvent. For this experiment, the impurities would be reducing agents that would
asked by eng 
philosophy
What makes pity the such a horrible emotion? How is it counter to Nietzsche conception of the good? Please I don't know where to start!!!!!
asked by Dean 
Check answer
Does (2)^7 = 2^7
asked by Bart 
math
2x>17 wold it be x
asked by Abgail 
Math
Test for symmetry with respect to Q=pi/2 , the polar axis and the pole. r = 16 cos3Q Please explain. I do not know how to do this. Thank You!!
asked by Abbey 
us history
what was the first big business in american history?
asked by cliff 
Geography
What Government imposed barriers to stop or hinder the export of automobiles?
asked by HelloKitty 
Chemistry
How come the charges of H*2O*2 (asterisk means subscript), which is hydrogen peroxide,don't equal? The charge of hydrogen is 2, and the charge of O is 4. For an ionic compound you can figure out the formula by the charges(when the charges of the ions add
asked by Emily 
us history
the arid and difficult conditions of the landscape rather than new land laws passed to assist settlers were more important to shaping the emerging institutions of the american west in the later decades of the 19th century true or false?
asked by cliff 
Math
A point in polar coordinates is given, Find the corresponding rectangular coordinates for the point. (r,Q) = (4, 3pi/2) I know that you are suppose to use x=r cos Q and y=sin Q but I do not know how to plug this in.
asked by Abbey(Please help) 
us history
identify five reasons why european immigrants took flight from europe during the late 19th and early 20th centuries.
asked by cliff 
Chemistry
Consider the evaporation of methanol at 25.0 C: CH3OH(l)>CH3OH(g) Delta G= 4.3 kJ Find Delta G at 25.0 C under the following nonstandard conditions: Pressure of CH3OH= 15.0 mmHg.
asked by Kyle 
chemistry
Calculate the solubility (in g/L) of silver carbonate in water at 25°C if the Ksp for Ag2CO3 is 8.4 x 10^12
asked by Bababa 
Math
Find the composition. If f(x) = x^2 + 12 and g(x) = x^2  5, find (g*f)(x)
asked by Urgent!! 
math
On a square gameboard that is divided into n rows of n squares each, k of these squares lie along the boundary of the gameboard. Which of the following is a possible value for k?
asked by john 
us history
discuss the applicative meaning of the 18th century theory known then as recapitulation
asked by cliff 
us history
identify the six groups or individuals fredrick jackson turner ommitted from his thesis regarding the frontier experience in american history....
asked by cliff 
Chemistry
Calculate the amount of energy in kilojoules needed to change 225 g of water ice at 10 C to steam at 125 C. The following constants may be useful: Cm(ice)=36.57 J/(mol*C) Cm(water)=75.40 J/(mol*C) Cm(steam)=36.04 J/(mol*C) Delta H(fus)=+6.01 kJ/mol Delta
asked by Eddie 
Math
Solve the equation. log 6.44 + 3 log x  log x^2 = log 6.44 + 3
asked by Urgent!! 
Math
Solve. The population of a particular country was 29 million in 1980; in 1989, it was 36 million. The exponential growth function A=29e^kt describes the population of this country t years after 1980. Use the fact that 9 years after 1980 the population
asked by Anonymous 
Chemistry
0.05 mole of HCL is added to a liter of buffer containing 0.04 mole of NH3 and 0.03 mole of NH4CL. What is the ph? Kb= 1.8X10^5
asked by Cathy 
Math
$6550 is compounded semianually at a rate of 18% for 18 years. find the total amount in the compound interest account round to the hundredth as needed.
asked by christopher 
Calculus
Suppose that ∫∫_D f(x,y)dA=3 where D is the disk x^2+y^2
asked by Salman 
chem
Calculate the hydrogen ion concentration of a 3.55×104 M solution of the strong base KOH. Round your answer to 3 significant digits.
asked by kathy 
EnglishPoetry
What does this line mean? What does it describe? Believe that right now there is someone who beleives in the eonder that's you By Wish Belkin I think that it seems to give readers the courage to seek out in the real world and show their unique personality
asked by Sara 
psychology
How do various behaviors of social dominance and courtship display affect the evolutionary process?
asked by erica 
auguta tech
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 689599.7 rule to find the following quantities: a. Percentage of scores less than 100=50 percent b. Relative frequency of scores less than
asked by cynthia 
physcs
A potter's wheel having a radius 0.55 m and a moment of inertia 11.6 kg·m2 is rotating freely at 55 rev/min. The potter can stop the wheel in 8.0 s by pressing a wet rag against the rim and exerting a radially inward force of 66 N. Find the effective
asked by Kelsey 
stats
The probability of receiving a false positive on a mammogram is 7%. If the patient receives 10 mammograms in her lifetime what is the probability that none of the tests come back as a false positive?
asked by kathryn 
Economic
Why is demand history irrelevant for the management of raw materials and workinprocess inventories?
asked by Jeniffer 
Reading
In the sentence "Ships have sunk for no apparent reason", would the word obvious, general,or simple best fit the word apparent?
asked by Eliza 
Trig
The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR. (d)
asked by Sarah 
science
1. What are expansion joints, and why are they used?
asked by Anonymous 
Reading
In the sentence "Each autumn, some hurricanes track directly through the Bermuda Triangle." would definition 1.a path along which something travels 2.observe the progress of or 3. move over or along, fit for the word travel?
asked by Eliza 
auguta tech
a. Percentage of scores less than 100=50 percent b. Relative frequency of scores less than 120= 0.34+0.135+0.0235+0.015+0.84 c. Percentage of scores less than 140 d. Percentage of scores less than 80 e. Relative frequency of scores less than 60 f.
asked by cynthia 
Math
Use patterns or a linear equation to complete the table. P 2 88 8 10 ? Q 22 ? 110 110 330
asked by Lori 
math Did I do it right?
Use frontend estimation to find the value of the expression. I do not understand (without adjustment) 687  239 (without adjustment) is this right? 600 + 200= 800 + 126=926
asked by Bart 
english
how would i compare and contrast these two realist stories a good man is hard to find by flannery o' Connor and a pair of silk stockings by kate chopin
asked by sara 
chemistry
what is the relationship between pH and H+ and how do i show examples?
asked by sarah 
chemistry
what is the relationship between reaction rate and shape of equilibrium graph in terms of concentration versus time?
asked by sarah 
Chemistry
If 2 g of salicylic acid is heated with 4 g of acetic anhydride, what is the theoretical yield ? C7H6O3 + C4H6O3 > C9H8O4 + C2H4O3
asked by Fiona 
physics
Find Beta and Gamma for an electron that has a kinetic energy of 6.00 keV. â? gamma = KE/MoC^2 + 1 Beta = 1/gamma^2 + 1 gamma = 1.011723381 Beta = 1.9769592 I got gamma correct but my answer but im getting gamma incorrect can anyone explain what could be
asked by Andy 
physics
A stairwell is supported by two circular steel rods at one end. The other end supported above. The two steel rods are subjected to a total load of 12,800lbs. The rods are 24 ft long and E=30*10^6 psi. Select the rod based on the following specs. The rod
asked by stacey graham 
physics
Find moment of Inertia Ix and Iy for the built up steel beam. The 1"x32"plate is centered on the wide flange web together with the 2"x16" plate. The steel beam is a W18x71 (Area=20.8in^2 diameter=18.47 tw=0.495 Ix= 1170in^4 Iy= 60.3in^4) To get better
asked by stacey graham 
physics
A large chandelier weighing 1500lbs. is suspended from the roof of a theater lobby. The steel pipe from which it hangs is 20ft long. Determine the size of the pipe necessary to carry chandelier safely. Use A36 steel. What is the resulting elongation of the
asked by stacey graham 
Math
The total amount being spent on personal calls in a month by employees of a company follows a normal distribution with a mean of $900 and a standard deviation of $50. Find the probability that in a randomly selected month the amount spent on personal calls
asked by Lori 
Math
Susan's group of close friends are going to fifth grade in September. All are going to Belleview Elementary and their homerooms will be rooms 12, 14, or 16. All of her friends but 4 are going to room 12, all but 4 are going to room 14, and all but 4 are
asked by Mia 
Mathematicas
Sam and Susie are twins. Sam has as many brothers as he has sisters. Suzie has at least 1 sister, and twice as many brothers as sisters. How many kids are in the family altogether?
asked by Nina 
algebra I
determine the minimum furnance output,b solve for a, that is solve b=27a with 2100 ft square flooring.
asked by marilyn 
marketing
______________ is the process of naming broad productmarkets and then segmenting these broad productmarkets in order to select target markets and develop suitable marketing mixes
asked by tommy 
Chemistry
Calculate the pH of the titration of 100.00 mL of 0.200 M HOCI with 0.400 M KOH after 0, 25.00, 50.00, & 75.00 mL of KOH have been added. The Ka for HOCI is .000000035...Please Help!!!!
asked by Need Chem Help 
chemistry
why are the flair lights at the air port yellow/orange instead of white? my teacher gave me until monday 18th to answer this and i think he expects a scientific answer but i have nothing
asked by vanessa 
Algebra
(5c9)(5c+1)
asked by Kharla