Questions Asked on
February 8, 2010

English
Correct the incorrect punctuation and type a semicolon, colon, em dash, or parenthesis. What can be done about pollution? I know what I must do(and will doto help reduce pollution. Although, the way I see it, there are at least three things we all
asked by Pam 
Math
Consider the paraboloid z=x^2+y^2. The plane 3x2y+z7=0 cuts the paraboloid, its intersection being a curve. What is the "the natural" parametrization of this curve? Hint: The curve which is cut lies above a circle in the xyplane which you should
asked by Derek A 
Chemistry
Please help me answer this question; The goal of the recrystallization procedure is to obtain purified material with a maximized recovery. For each of the following, explain why this goal would be adversely affected. a) In the solution step, an
asked by Judy 
chemistry
The solubility of compound A in ethanol is 0.8 g per 100 mL at 0°C and 5.0 g per 100 mL at 78°C. What is the minimum amount of ethanol needed to recrystallize a 12.0 g sample of compound A? How much would be lost in the recrystallization, that is,
asked by niki 
Physics
A .22 rifle bullet, traveling at 373m/s, strikes a block of soft wood, which it penetrates to a depth of 0.125m. The block of wood is clamped in place and doesn't move. The mass of the bullet is 1.90. Assume a constant retarding force.How much time is
asked by Anonymous 
Chemistry
If an athlete weighs 153lb and has 15.0% body fat by weight, how many pounds of fat does the athlete's body contain?
asked by ana 
statistics
True or False: A zero population correlation coefficient between a pair of random variable means that there is no linear relationship between the random variable.
asked by iyra 
chem
.070g caffeine dissolved in 4 mL water. caffeine is extracted from aqueous solution 3 times with 2mL portions of methylene chloride. calculate total amount of caffeine that can be extracted into the 3 portions. caffeine has a distribution coefficient of
asked by j 
chemistry
calculate the freezing point and osmotic pressure at 25 degrees celcious of an aqueous solution containing 1.0 g/L of a protein (mm=9.0*10^4g/mol) if the density of the solution is 1.0 g/cm^3
asked by heather 
chem
.070g caffeine dissolved in 4 mL water. caffeine is extracted from aqueous solution 3 times with 2mL portions of methylene chloride. calculate total amount of caffeine that can be extracted into the 3 portions. caffeine has a distribution coefficient of
asked by j 
College Physics
A single resistor is wired to a battery. Define the total power dissipated by this circuit as P(initial). What is the Power? Now, a second identical resistor is wired in series with the first resistor. What is the power, in terms of P(initial), dissipated
asked by Lanise 
biology
how have sarcodines built geological features of the environment?
asked by emilie 
math
When making a telephone call using a calling card, a call lasting 3 minutes cost $1.65. A call lasting 11 minutes cost $4.85. Let y ba the cost of making a call lasting x minutes using a calling card. Write a linerar equation that models the cost of making
asked by ReRe 
Computer Science
This is the problem: The following HTML code fragment contains a reference to an image file called frog.gif and with alternate text set to froggy, but the code as written contains a number of errors. Write the HTML line correctly. (Note: this problem is
asked by Joseph 
Physics
Two pith balls below each have a mass of 5.0 g and equal charge. One pith ball is suspended by an insulating thread. The other is brought to x = 4.0 cm from the suspended ball. The suspended ball is now hanging with the thread forming an angle of 30.0°
asked by Adam 
grammar
Which is the best way to combine these two sentences? Breathing all that dust was not good for people's health. Many people got sick. a. Breathing all that dust was not good for people's health, and many got sick or b. Breathing all that dust was not good
asked by PJ 
Physics
A rock thrown horizontally from the top of a radio tower lands 20.0 m from the base of the tower. If the speed at which the object was projected was 11.50 m/s, how high is the tower?
asked by Katie 
Physics
How fast must a truck travel to stay beneath an airplane that is moving 139km/hr at an angle of 25° to the ground?
asked by Terrance 
Physics
A flowerpot falls off a windowsill and falls past the window below. It takes the pot 0.42 s to pass this window, which is 1.90 m high. How far is the top of the window below the windowsill from which the flower pot fell?
asked by Drew 
5th grade
mary had 10 yards 2 feet of ribbon. She needed to cut peices for her 3 friends. If each friend got the same amount of ribbon, how much did each get? In your answer, there cannot be more than 12 inches.
asked by me 
Physics
When the brakes of a certain car are applied, a deceleration of 6.0 sec squared is produced. a) How much time will it take to bring the car to a halt from an initial speed of 110km/hr? b) How far will it travel in that time?
asked by Nina 
geometry honors
precise name of quadrilateral with vertices A(2,4) B(2,6) C(6,4) D(2,3)
asked by Jane 
Science
The cause of the seasons on Earth is often mistakenly attributed to the elliptical orbit of Earth around the sun. What is the actual cause of the seasons? Tha actual cause of the seasons is because of the tilt of Earth's axis. please correct me if i'm
asked by Sara 
organic
What product(s) would you expect from the reaction of 1 mol of 1,3butadiene and 2 mol of Cl2?
asked by adrienne 
POETRY
19. Which one of the following lines best illustrates personification?
asked by Anonymous 
Geography
19. All of the following statements about Brazil's economy are true EXCEPT: a. Because of the development of gasohol, Brazil no longer has to import expensive foreign oil b. Industrial developments have destroyed the middle class c. Jobs in service
asked by y912f 
Math
which objects do not have rotational symmetry. One example would be fine, also could you tell me why it doesn't, thanks :)
asked by Sara 
Science
The cause of the seasons on Earth is often mistakenly attributed to the elliptical orbit of Earth around the sun. What is the actual cause of the seasons? Tha actual cause of the seasons is because of the tilt of Earth's axis. please correct me if i'm
asked by Sara 
physics
Calculate the acceleration of a 2000kg, singleengine airplane just before takeoff when the thrust of its engine is 500 N.
asked by iggy 
Chemistry
Write an equation that explains the conductivity of CO2(aq, saturated)
asked by Taylor 
Geography
Please help me on these: 23. How can BosniaHerzegovina best be described? a. as a nation of conflicting ethnic groups b. as a unified nation c. as a nation struggling to rebuild Communist ties to Russia d. as a peaceful and prosperous nation A 25. How did
asked by y912f 
math
Jeremy has a fish tank that has a 40cm by 70cm rectangular base. The water is 25 cm deep. When he drops rocks into the tank, the water goes up by 2 cm. What is the volume in liters of the rocks
asked by jena 
Science
A farmer planted a field of Bt 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre. He determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90 000
asked by Justin 
Physics
The graph below represents the relatonship between the potential difference across a metal conductor and the current through the conductor at constant temperature. Potential Difference vs. Current PD vs. C PDC 22 44 66 88 What is the
asked by Priscilla 
Chemistry
A student placed 14.0 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mark on the neck of the flask was reached. The flask was then shaken until the solution
asked by Sherryl 
Chemistry
An element has bcc packing with a bodycentered cubic unit cell. Its density is 19300 kg/m3 and the unit cell volume is 3.17 x 1026 L. Calculate the molar mass (g/mol) of the element to three significant figures. The element rubidium has bcc packing with
asked by Dan 
Math
Use the fundamental counting principle to find the total number of outcomes in each situation. 1.Rolling two number cubes and tossing one coin. = Is the outcome = 4? 2.Choosing from 3 sizes of distilled,filtered, or spring water. = Is the outcome 9? Thanks
asked by Shadow 
Finance
Mrs. Smith borrowed $20,000 from Last National Bank. She will repay the loan with 5 annual payments and her interest rate is 14%. a) Find the amount of her annual payments. b) What is her loan balance after she has made her 3rd annual payment?
asked by Mary 
chemistry
Describe how to prepare a 1M solution of sodium hydroxide from concentrated sodium hydroxide (17.6 M)
asked by Jay 
Chemistry
Put in order from strongest to weakest: London Dispersion Forces, Hydrogen Bonds, Dipoledipole interactions, ionic bonding, and covalent bonding.
asked by Lelia 
spanish
what does this say in English despues de haber encontrado todas las palabras escondidas, bosque el refran escondido, haciendo un circulo a las letras apropiadas, de izquierda a derecha.
asked by amber 
statistics
Blossom's Flowers purchases roses for sale for Valentine's Day. The roses are purchased for $10 a dozen and are sold for $20 a dozen. Any roses not sold on Valentine's Day can be sold for $5 per dozen. The owner will purchase 1 of 3 amounts of roses for
asked by iyra 
math
Leslie bought a new car with a sticker price of $10,356. If she paid 6% sales tax, traded in her old car for $2,250, and made a 20% down payment, calculate the total amount of the purchase price that she financed.
asked by puppy 
Biology
17. When errors in nucleotide sequencing occur, a. DNA polymerases replaces the incorrect nucleotide with the correct nucleotide b. enzymes dissolve the incorrect nucleotide so DNA polymerase can add the correct one c. purines replace pyrimidines in the
asked by mysterychicken 
math
a pencil, eraser and notebook together cost one dollar. a notebook costs more than two pencils, three pencils cost more than four erasers, and three erasers cost more than a notebook. how much does each item cost
asked by vasumathi 
grade five math
A freight train travel 100km every hour. It passes over a river at 10:00AM. Four hours later, a passenger train passes over the same river. The passenger train travels 150km every hour. When does the passenger train overtake the freight train? How far are
asked by peyton 
Chemistry
Please help !!!! The acid impurity in your unknown was benzoic acid. a) Write an equation for the reaction that occurs during the NaOH extraction. b) Write an equation for the reaction that occurs after the addition of HCL. Thanks.
asked by Amanda 
college
In each of the following cases,explain whether you think the situation is efficient or not.If it is not efficient,why not? What actions would make the situation efficient? Electricity is included in your rent at your dorm. Residents leave
asked by Marcye 
physics
Two pith balls below each have a mass of 5.0 g and equal charge. One pith ball is suspended by an insulating thread. The other is brought to x = 4.0 cm from the suspended ball. The suspended ball is now hanging with the thread forming an angle of 30.0°
asked by Adam 
calc
Suppose the total cost, C(q), of producing a quantity q of a product is given by the equation C(q) = 5000 + 5q The average cost per unit quantity, A(q), equals the total cost, C(q), divided by the quantity produced, q. Find the limiting value of the
asked by kyle 
physics
Block A has a mass of 4.1 kg, and it is on a frictionless surface. A string tied to this mass passes over a frictionless pulley, and is attached to a hanging block (Block B), as shown in the image below. The blocks then accelerate at 2.3 m/s/s. What is the
asked by Anonymous 
math
Find the domain f(x)=1/x4+4/x+3
asked by ReRe 
Math
A onestory building is 370 ft by 290 ft. If a square patio with sides 27 ft occupies the center of the building, how much area remains for offices?
asked by Ron 
math grade five
A freight train travels 100km every hour it passes over a river at 10:00am four hours later a passenger train passes over the same river the passenger travels 150km every hour when does the passenger train overtake the freight train? How far are they from
asked by peyton 
7th grade grammar
Writeacher: Juliana looked at the powerpoint on the clauses and she said it was really good, thank you writeacher. She said it helped her a lot. She thinks she might have it now. Thank you SOOOO much!
asked by Juliana's mom 
grammar 7th grade
My daughter has some homework in which she has to identify independent clauses and subordinate clauses as well as indentifying whether the sentence is simple, complex, or compound. I can help her with the last part, but don't know how to help her with the
asked by Juliana 
Science: Physics and Chemistry
I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses. It has no Fn, only Fg because it is
asked by Marina 
Physics
The graph below represents the relatonship between the potential difference across a metal conductor and the current through the conductor at constant temperature. Potential Difference vs. Current PD vs. C PD C 2 2 4 4 6 6 8 8 What is the resistance of the
asked by Priscilla 
Math
A curve is traced by a point P(x,y) which moves such that its distance from the point A(1,1) is three times the distance from the point B(2,1). Find the equation of the curve and identity.
asked by Anonymous 
Physics
From the edge of the rooftop of a building, a boy throws a stone at an angle 24.0° above the horizontal. The stone hits the ground 4.40 s later, 104 m away from the base of the building. (Ignore air resistance.) Find the initial velocity of the stone.
asked by Max 
english
I have to do a project on 4 types of writing. Fictional narrative, Personal narrative, Informational writing and Persuasive writing. The project consists of giving characteristics of each, as well as 2 prompts (examples) for each. This is what I have so
asked by Sylvie 
7th grade grammar
Hey Ms. Sue, thank you for the website. It helped Juliana a lot. She thinks she can figure this out now. Thank you VERY MUCH!!!
asked by Juliana's mom 
Science
For this question : How does the photoperiod differ between the two solstices? wouldn't the solstices be spring and fall?
asked by Sara 
kindergarten
I need to know what a counter is in order to have my child draw a piece of yarn 3 counters long from the needle. What exactly is a counter?
asked by Lee 
physics
A 0.0160kg bullet traveling horizontally at 396 m/s strikes a 3.95kg block of wood sitting at the edge of a table. The bullet is lodged into the wood. If the table height is 1.06 m, how far from the table does the block hit the floor?
asked by Sarah 
college physics
Vector A points in the negative x direction. Vector B points at an angle of 27.0 degress above the positive x axis. Vector C has a magnitude of 20 m/s and points in a direction 39.0 degress below the positive x axis. Given that A+B+C=0, find the magnitudes
asked by Jordan 
environmental science
i need to think of ways of how to reduce reuse and recycle waste in a theme park.any help would be great thanks!:)
asked by ESKIE 
math
solve for all real# sin2x(csc2x2)=0
asked by Anonymous 
spanish
What is the meaning of this lyrics? I have translated this but I do not understand what he is talking about. The lyric meanings are abstract to me. Please help me! Pongamos que hablo de Madrid Allá donde se cruzan los caminos donde el mar no se puede
asked by Leah 
physics
Two pith balls below each have a mass of 5.0 g and equal charge. One pith ball is suspended by an insulating thread. The other is brought to x = 4.0 cm from the suspended ball. The suspended ball is now hanging with the thread forming an angle of 30.0°
asked by Adam 
accounting
the spare parts inventory account shows an unadjusted balance of 450. a physical count shows a blance on hand of 100
asked by jessica 
Biology
A farmer planted a field of Bt 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre. He determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90 000
asked by Biology 
math
1) initial investment = $600 annual % rate = ? time to double = ? amount after 10 years = $19,205.00 19,205 = 600e^(10r) I do not know how to solve for r of find the time to double.
asked by Hannah 
Algebra 2
Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x  h)^2 + k the h is
asked by Tessa 
Biochemistry
Hi, In this task for our school, we were requested to investigate a method for testing the amount of caffeine content in coffee. There are 3 main questions as fellows 1. What would be a good method to measure the amount of caffeine in coffee without
asked by Dave 
Math
If I have 27 coins (dimes and nickels) that total $1.95. How many are dimes and how many are nickels
asked by Pam 
economics
From Table 41 in the text, determine how much the demand for Florida Indian River oranges would change as a result of a10 percent increase in the price of Florida interior oranges, and vice versa.
asked by Anonymous 
math
in circle O, chords AB and CD intersect at E. If AE = 3, EB = 4, CE = x, and ED = x4, what is the value of x?
asked by beau 
Statistics
Five friends go bowling and finish with the following scores. Jim bowls a 129, Bob bowls a 150, Ann bowls a 133, Tom bowls a 162 and Gina bowls a 148. Find Tom's zscore. Treat the data as a population. Don't forget to round to the nearest tenth. The book
asked by John 
math(Please please help!!!)
1) initial investment = $600 annual % rate = ? time to double = ? amount after 10 years = $19,205.00 19,205 = 600e^(10r) I do not know how to solve for r of find the time to double.
asked by Hannah 
algebra
Find the missing dimension for each threedimensional figure to the nearest tenth, given the volume and other dimensions. rectangular pyramid, t=8m, w=4.6m, V=88m cubed
asked by Anonymous 
physics
Calculate the kinetic energy that the earth has because of its rotation about its own axis. For comparison, the total energy used in the United States in one year is about 9.33 109 J. cannot_evaluate cannot_evaluate J (b) Calculate the kinetic energy that
asked by zeta 
Science
What is unique about the photoperiod at the two equinoxes? At the two equinoxes, the photoperiod is equal, it stays the same for both dates?????????? Please help me with this one, I don't think I have it right.
asked by Sara 
Math I
How do you find whether a function is even or odd? Identify the odd function. A)f(x) = 5 B)f(x) = 8x C)f(x) = x3 D)f(x) = x2 + 7
asked by Cline 
Geography
Need Help! 14. How has Italy's economy changed since 1950? a. Italy has withdrawn from the European Union b. Farming and tourism have become Italy's most important economic activities c. More people are working in manufacturing and service industries d.
asked by y912f 
english stories and discoveries
intiation As opposed to swooping, singing heather birds, in flock, one like the other, all exactly alike." This comparison inspired millicent to 1. join the sorority and be like the other? 2.ask others for assistance? 3. think and act as an individual?
asked by veronica 
Biology
23. A medical condition that can be treated by using proteins produced through genetic engineering is a. depression b. multiple sclerosis c. hemophilia d. all of the above 26. Endosymbiosis best explains the possible evolutionary beginnings of a.
asked by mysterychicken 
Geography
Is this correct? 20. Communist governments in Eastern Europe were established by the a. Poles during the 1800s b. Russians after the Russian Revolution in 1917 c. Soviet Union at the end of World War II d. Soviet Union during the Cold War C?
asked by y912f 
science
I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses. It has no Fn, only Fg because it is
asked by Marina 
Gen Chem II
How many mL of 0.0875 M H2SO4 would you need to exactly neutralize 50.00 mL of 0.135 M NaOH?
asked by KiKi 
Economics305
As a manager of a financial planning business you have two financial planners, Phil and Francis. In an hour, Phil can produce either one financial statement or answer 8 phone calls, while Francis can either produce 4 financial statements or answer 10 phone
asked by Mizzy Kay 
Geography
REPOST Need Help! 14. How has Italy's economy changed since 1950? a. Italy has withdrawn from the European Union b. Farming and tourism have become Italy's most important economic activities c. More people are working in manufacturing and service
asked by y912f 
Physics
At an antique car rally, a Stanley Steamer automobile travels north at 38 km/h and a Pierce Arrow automobile travels east at 51 km/h. Relative to an observer riding in the Stanley Steamer, what are the x and ycomponents of the velocity of the Pierce
asked by Max 
Physics
If you can throw a ball vertically upward to a height h = 30.5 m, what is the maximum horizontal range over which you can throw the same ball, assuming you throw it at the same initial speed?
asked by Katie 
Accounting
On January 1, 2005, Lynn Corporation acquired equipment at a cost of $600,000.
asked by Anonymous 
gr9math
about 99% of the mass of the human body is made up of just six elements. oxygen:65% carbon18% hydrogen:10% calcium:1.5% phosphorus:1.0% Find the mass of each element in a human body iwth mass 60kg. could you please explain to me how to do this? your help
asked by rebecca 
math
Suppose the cost C(q) (in dollars) of producing a quantity q of a product equals C(q) = 500 + 2q +1/5q^2 The marginal cost M(q) equals the instantaneous rate of change of the total cost. Find the marginal cost when a quantity of 10 items are being
asked by kevin 
Gr. 12 English
I'm not sure if the the following sentence have misplaced or dangling modifier errors. "My bike fell over while tying my shoelaces."
asked by AL 87 
chemistry
for face centered unit cell, r=6 find edge in terms of r, face diagonal in terms of r, body diagonal in terms of r, edge=squareroot(8)r face=4r but i don't know how to find body diagonal
asked by blasting 
chemistry
What mass of benzoic acid can be made from a reaction where 4.87g benzyl alcohol is combined with 300mL of bleach? The reaction is conducted in water and dichloromethane. Describe a method of separating the benzoic acid from the sodium chloride byproduct
asked by Chad 
lit
how does juliet respond to Paris'gallantries when she mets him at Friar Laurence's ?
asked by dakota 
Physics
An arrow is shot into the air at an angle of 60.3° above the horizontal with a speed of 20.1 m/s. What are the x and ycomponents of the velocity of the arrow 3.4 s after it leaves the bowstring? What are the x and ycomponents of the displacement of
asked by Max 
Biology
17. When errors in nucleotide sequencing occur, a. DNA polymerases replaces the incorrect nucleotide with the correct nucleotide b. enzymes dissolve the incorrect nucleotide so DNA polymerase can add the correct one c. purines replace pyrimidines in the
asked by mysterychicken 
Science: Physics and Chemistry
Can someone please help me with this??? I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses.
asked by Marina 
pre cal
how do you determine the domain of the variable in the expression x6 over 5x?
asked by becky 
Math
A circle is tangent to the yaxis at y=3 and has one xintercept at x=1, find the other xintercept and the equation of the circle. ...And if it's not any trouble, could you please explain how to do get there alongside showing me what to do? Thanks (:
asked by Leslie 
Algebra 2
Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x  h)^2 + k the h is
asked by Tessa 
Calculus
Find the points of inflection of the curve below. Round the answers to three decimal places. (Hint: All three are in a straight line.) y= (1+x)/(1+x^2)
asked by Sasha 
Science
How does the photoperiod differ between the two solstices? The Photoperiod becomes longer in summer and it becomes shorter in winter. Please tell me if this is correct, and any other infomation would be appreciated, thanks
asked by Sara 
Math
Field Goals Free Throws  Number: % : Number : % Taken : Made : Taken : Made Lions : 37 1/2%: : 20 : 55% 48 : : : Tigers: 45% : 18 : 66 2/3% 40 : If these are the results of a
asked by Paul 
physics
A uniform electric field of magnitude 333 N/C is directed along the +yaxis. A 6.00 µC charge moves from the origin to the point (x, y) = (10 cm, 37 cm). A). What is the change in the potential energy associated with this charge? B).Through what
asked by Jan 
more 7th grade grammar
Trying to help my daughter... we have to identify subordinate clauses, identify independent clauses. I can help her with the part about simple, compound and complex, but don't remember the independent and subordinate. Any help would be appreciated. 2.
asked by Juliana's mom 
math
A rocket is stopped 12 feet from a satellite when it begings accelerating away from the satellite at a constant rate of 12 feet per second. The distance between the rocket and the satellite is given by the polynormial P(t)= 6t^2+12. Find the distance
asked by ReRe 
maths
another question ? A is an acute angle and sin A=3/5 calculate the value of tan A ??
asked by Amy 
physics
At t = 0, an automobile traveling north begins to make a turn. It follows onequarter of the arc of a circle of radius 9.3 m until, at t = 1.38 s, it is traveling east. The car does not alter its speed during the turn. (a) Find the car's speed. ___ m/s (b)
asked by Cindy 
Science
How do you distinguish between a fluid and a non fluid.
asked by sean 
MLA english question
My professor said "2) Be sure to footnote your writing when necessary. Of course you do not have to footnote general information, and the difference is not always to see! If you're in doubt, footnote a whole paragraph, or even one sentence. By the way, you
asked by Claire 
Math
John had some animals. Onefourth were horses, onehalf were cows, and the rest were pigs. He had 8 pigs. How many animals did he have altogether?
asked by Ana 
Algebra 2
It is a beautiful spring day so you decide to go rowing upstream on your favorite river. You row at a constant rate of 1 mile per hour. Suddenly a gust of wind blows your hat off into the water. You watch it float away downstream but since you never really
asked by John 
Algebra 1A
3 with the check mark symbol that goes over 375 divided by 3 that goes over the check mark symbol that goes over 3. Sorry can't remember what that sign is
asked by LeAnn 
Chemistry
Molarity of KMnO4:0.2M Volume of H2O2: 10mL Initial volume 50mL Final Volume: 31.90mL Volume of KMnO4 (new H2O2) Would it be the 31.90mL or do I subtract 50mL31.90mL= 18.10mL
asked by linda 
Math  Venn Diagrams
How can we solve this using a Venn diagaram? 12 out of 1000 women at age forty who participate in routine screening have breast cancer. 880 out of 1000 women with breast cancer will get positive mammographies. 90 out of 1000 women without breast cancer
asked by Stephanie 
Chemistry
Please help me !! Frequently in the distillation of methanol and water, the methanol distillate appears cloudy. To what might you attribute such an observation? Thanks.
asked by Elizabeth 
Environmental Science
I need a little help on these, i've posted them a few times but i don't get any answers. 29. A common feature of thermal pollution and artificial eutrophication is that they both a. have sources that are difficult to identify and control b. cause large
asked by y912f 
math
Solve the inequality x2 + 7x + 12 < 0.
asked by pat 
math(Urgent)
1) The number of bacteria N in a culture is given by N=250e^kt where t is the time in hours. If N = 280 when t=10 estimate the time required for the population to double in size. 280 = 250e^10k divide by 250 1.12 = e^10k ln 1.12 / 10 = .011 K = 0.11 Now I
asked by Hannah 
Physics
Two trees have perfectly straight trunks and are both growing perpendicular to the flat horizontal ground beneath them. the sides of the trunks that face each other are 1.0m apart. a squirrel makes three jumps, first leaps from the foot of one tree to a
asked by Mary 
Algebra 3
Factor: 12x^3+18x 494y^2 x^3+1 8x^3125 x^3+2x^2+x
asked by Jennifer 
6 math
Ricky had 2/3 gallon of fruit punch left over from his party. He gave Jason 1/4 gallon the next day. What fraction of a gallon of fruit punch does Riky have left?
asked by sally 
accounting
Which journal would you use if you invested cash in the business?
asked by Anonymous 
calc
Suppose the cost C(q) (in dollars) of producing a quantity q of a product equals C(q) = 500 + 2q +1/5q^2 The marginal cost M(q) equals the instantaneous rate of change of the total cost. Find the marginal cost when a quantity of 10 items are being
asked by ty 
English
I made the changes you suggested to me. Can you please check if my five paragraphs are correct? Thank you very much in advance. 1) In the first chapter Mrs Long tells Mr Bennet that Netherfield has been let by Mr Bingley, a rich young man from the north of
asked by Franco 
math (Urgent)
1) The number of bacteria N in a culture is given by N=250e^kt where t is the time in hours. If
asked by Hannah 
English
We are working on descriptive writing and right now I have to do a whole description on a Old House. Sounds: Screams Howls Whispers Touch: slimy doorknob sticky path dusty windows Sights: broken steps Spider webs on door damaged rooftop Colours: Brown door
asked by Sara 
human service 220
How does data and information support human service organizations? When answering this question, address three of the following: · Planning · Operations · Human resources · Technical resources · Financial planning
asked by Tara 
English 101
Hi, I am having a hard time finding the faulty parallelism, I could see it in my other exercises, but not these. Would you be able to help me with these? Thank you, Dana 1. Arriving at Lake Powell in a thunderstorm, the campers found it safer to remain in
asked by Dana 
Grade2 eng
What is the hidden word in these alphabets? abbceeru Thanks
asked by MONA 
health care ethics
Visit the publications link under the Gender, women and health section on the World Health Organization’s Web site. You can use the following keyword search to visit the required Web page: “WHO, GWH publications.” Select the gender and tobacco fact
asked by Niki 
programming
Having trouble with this program running, can anybody help solve my problem: #include #include #include void draw_x(int width, int height); int main(int argc, char *argv[]){ int width, height; if(argc != 3){ printf("Syntax: this_program width height\n");
asked by Riley 
Math
In a dart game, Jessie hit the bullseye on 15 of 20 throws. Based on these results, what are the odds in favor of her hitting the bullseye on her next throw? Answer is 3 to 1, why?
asked by Pam 
physics
A ball is thrown upward from a platform 4.6 m high with a speed of 23 m/s at an angle of 40 o from the horizontal. What is the magnitude of its velocity when it hits the ground?
asked by Katie 
Yr 10 English  Poetry
What were the hobbies (if any) of Nobel Prize winning poet Seamus Heaney? I searched everywhere and couldn't find anything. . .
asked by Emily 
11th grade
how do you do STOICHIOMETRY?
asked by kewan 
world history
What factor motivated Italy, Germany, and Japanese leaders to foreign policies in the 1930's
asked by Anonymous 
Science
Compare and contrast liquids and gases.
asked by sean 
Economics305
We make choices as consumers every day. Opportunity cost is defined as a person’s "next best alternative" or "the cost of what you give up when you make a choice." Think of a recent decision you made regarding your career. What was your opportunity cost
asked by Mizzy Kay 
science
Why doesn't the cell membrande pinch in to divide the cytoplasm telophase in plant cells?
asked by Kay 
Grammar
Does the following sentence have faulty coordination or runon errors? "Harry Houdini left home at the age of 12, and his real name is Erich Weiss."
asked by alex 
human relations
Studying how people get alone with one another? A. has little use outside the work place. B.can improve a persons personal life C.won't help a worker become more production D.for most people is a difficult thing to do
asked by Amber 
math
The brightness of a light bulb varies inversely as the square of the distance from the source. If a light bulb has a brightness of 300 lumens at 2 ft, what will its brightness be at 10 ft?
asked by claire 
Physics
I have a sheet full of equations, I just don't know which one to use or what type of problem this is. A cannon is on a hill. The hill is 20 m high. The cannon is at an angle of 26 degress. If a cannonball is shot into the valley below. a.) Find the x and y
asked by Jill 
algebra
need a pair of dice where each number from 1  12 has an equal chance of being rolled. You have been given the task of designing the new dice for the board game. You are to use two standard cubes (each with six faces) and number them in such a way that the
asked by Delmar 
Business
Why is ebusiness an important aspect of the strategic planning process?
asked by Mary 
7th grade science
what wedsite can i find pictures and info. on a arab , chinese and native american astronomer from the 1054.
asked by verone 
Math
During and art contest at my school, me and a classmate each won blue ribbons for 1/3 of the pieces you entered in the contest. You won 2 blue ribbons and my classmate won 3 blue ribbons. Explain how this could be?
asked by Cole 
calc
Find the domain of g(t) = sqrt (3t + 15.)
asked by pete 
physics
If you are initially 1.50 km [E] of home and 0.65 hours later you are 0.75 km [N 45 degrees E] of home, what is your change in displacement?
asked by Megan 
maths
solve algebraically to 2 decimal places : 3(x2) = x x 3
asked by Amy 
healthcare
compose a list identifying the major components of health communication. who is involved in each component? how does each component promote health communincation? in not utilized, how would it reduce health communincation? provide examples.
asked by nancy 
government
My teacher told me and my class to write a essay on why we would want to live in a capitalist government but I have no idea what to write can you help?
asked by maddie 
math
Find the domain of g(t) = sqrt (3t + 15.)
asked by kevin 
English
Thank you very much for your last corrections. Can you please check these ten more statements? I still have some doubts about the words underlined or in parentheses. 1.She says that Netherfield has been rented (instead of let) by Mr Bingley. 2) He was
asked by Franco 
math
1) The number of bacteria N in a culture is given by N=250e^kt where t is the time in hours. If N = 280 when t=10 estimate the time required for the population to double in size. 280 = 250e^10k divide by 250 1.12 = e^10k ln 1.12 / 10 = .011 K = 0.11 Now I
asked by Hannah 
geometry honors
precise name of quadrilateral with vertices A(2,4) B(2,6) C(6,4) D(2,3)
asked by Jane 
prescriptivists
which statement does NOT describe prescriptivists? A} language should be rocorded, not judged. B} language use should follow strict rules. C} language use should never change. D} language use should be judged and evaluted. .The answer i choose is C.
asked by laura 
calculus
how to i evaluate the integral of dx/ (x^2 +9) with a u substitution of x/3? Can someone show this step by step?
asked by sammi 
business studies
how does the sale of fixed assets and retained earnings help in raisihg business finance
asked by james 
u.s historyy
what are some landforms in Gadssen(Gadsden Purchase)is it safe?..Descripition of the types of Business/farming available. and type of community people would get to live with..please help.!
asked by Mee 
math
The brightness of a light bulb varies inversely as the square of the distance from the source. If a light bulb has a brightness of 300 lumens at 2 ft, what will its brightness be at 10 ft?
asked by claire 
chemistry
what should I include in my discussion when writing up my heating substances lab experiment?
asked by ana kay 
Maths
Can anyone solve this eqestion ?? a line passes through (5,2) and is parallel to y=3x find the equation of the line ??
asked by Amy 
APUSH
How did Wilson get support for his progressive reforms? a.) he acted through a bipartisan coalation of progressives b.) relied on the party loyalty of Democrats c.) could not rely on most Democratic Congressmen to stick with him d.) none of the above
asked by Amber 
calc
Solve the inequality x^2 + 7x + 12 < 0.
asked by sara 
physics
If you are initially 1.50 km [E] of home and 0.65 hours later you are 0.75 km [N 45 degrees E] of home, what is your change in displacement?
asked by Megan 
English
I forgot to include these other three paragraphs. I really hope you can help me with them, too. I thank you all. 6) Elizabeth walks three miles to look after her sister. Mr Darcy feels attracted by her but he says her low connections prevent him from
asked by Franco 
Math
How can we solve this using a Venn diagaram? 12 out of 1000 women at age forty who participate in routine screening have breast cancer. 880 out of 1000 women with breast cancer will get positive mammographies. 90 out of 1000 women without breast cancer
asked by Stephanie 
Org. Chem.
Synthesize 6(4tertbutylphenyl)cyclohex3enecarbonitrile using (Z)3phenylacrylonitrile as your starting material and any other reagents you wish. Please help and an explanation would be greatly appreciated.
asked by CMM 
advance intergraded science
picture of c6h12o6
asked by Anonymous 
Science
How can you demonstrate that finely ground fluids are not fluids.
asked by sean 
science
At what height above the earth is the acceleration due to gravity 12% of its value at the surface?
asked by mia 
Geography
While looking at a political map of Western Europe, answer these questions: 31. What does a solid black line on the map signify? National Boundary 32. Which nations of Western Europe border on the Mediterranean Sea? need help! 33. List the nations that
asked by y912f 
behavioral science
describe briefly the six psychological
asked by amy 
math
how do I figure out the following:52 students take a test and only 3 pass the test what percent of the students passed I need a strategy/show how you got the answer thanks
asked by Mattie 
Social Studies
i NEEDED HELP SOCIAL STUDIES CITIZENSHIP CIVIC BOOKS FOR 4 GRADE
asked by Anonymous 
Math 1
Please also explain how you got the answer if you know it. Thanks. : Solve for x. x24x+2 = 2x+5 A) (1,7) B) (3,1) C) {1,7} D. {3,1}
asked by Talli 
English
Can you please check my tenses. In particular, can you tell me, which tense I shall use when making a summary? Can I say “She says she was going to give a party?” when referring to her own words? Or shall I write “She said she was going to have a
asked by Franco 
English
I forgot to include the following paragraphs for you to correct. Thank you! 1) Unfortunately, Elizabeth overheard his conversation but didn’t take it hard because of her playful manners. 2) Mr Bingley soon fell in love with her. When he was asked which
asked by Franco 
science
explain how the carbon cycle and the nitrogen cycle are connected.
asked by kathy 
Math
Find the slope of a line perpendicular to the line y= 5/3x
asked by ReRe 
math
Find the domain of g(t) = p3t + 15.
asked by ted 
Algebra
Can I simplify this further SQRT( 2  SQRT(2) )
asked by Bob 
English Lit
Write a poetry explication that describes aspects that typify the work of a poet in Twentiethcentury to contemporary poetry
asked by Anonymous 
Hamlet book vs movie
I would just like to get a view of anyone's opinion on Shakespeare Hamlet the book vs the movie starring Mel Gibson and Glen Close...which scenes in the movie do you feel had a greater impact than it did in the book?
asked by Anonymous 
maths
solve : 5x(squared)  245 = 0
asked by Amy 
Enviromental Science
Estimate the velocity of the groundwater flowing from a point 500 feet from a creek. The point is 50 feet above the surface of the creek and the permeability of the subsurface is approximately 105. Approximately how long would it take the groundwater to
asked by Shane 
s.s
how is sweden's economy similar to the united kingdom's economy
asked by Leslie 
MATH
HOW TO TELL if each pair of polygons are diffrent
asked by ALEX 
math
Solve the inequality x^2 + 7x + 12 < 0.
asked by kevin 
algebra1B
The Directions Say "What Is The Solution Of The System Of Linear Equations?" The Question Is: xy=2 x+y=3
asked by Kylie 
math(Urgent)
1) The number of bacteria N in a culture is given by N=250e^kt where t is the time in hours. If N = 280 when t=10 estimate the time required for the population to double in size. 280 = 250e^10k divide by 250 1.12 = e^10k ln 1.12 / 10 = .011 K = 0.11 Now I
asked by Hannah 
COM220
Strategies for gathering information Appendix D Is the source the name of the article or the reference who wrote it. What goes in the source box?
asked by jessy 
English
Can you check the very last sentences of the day? 1)The biker wanted to cheer his supporters or wanted to cheer to his supporters? 2) We toasted the New Year or we toasted to the New Year? 3)In order to stress the fact that the children were given very
asked by Franco 
math
i am supposed to solve this word problem using system of quatino methods The annual cost of owning and opearting a car, C dollars, is a linear function of the distance, d kilometers, it is driven. C=md+b the cost is $4600 for 10 000km and $9100 for 25
asked by jake 
Algebra 1B
I can not figure out the answer to this problem. (^6)(7^6+5) I'm not sure if that sign is correct. It's suppose to be the symbol that looks like a check mark and goes over the 6 on left and over the 6+5 on right. Please help
asked by LeAnn 
Science
What is the photoperiod? I wrote: The photoperiod is the length of day. Please tell me if this is correct, thanks
asked by Sara 
english
What is the part of speech for "scheduled" in this sentence? The baby is scheduled for delivery today.
asked by Linda 
math
Please also explain how you got the answer if you know it. Thanks. : Solve for x. x24x+2 = 2x+5 A) (1,7) B) (3,1) C) {1,7} D. {3,1}
asked by Natalie 
english
which phrases are simile, metaphor and personfication in the following paragraph: Our vacation paradise cutting all flour legs from under the dinner table With one deepwater move he unwove the rugs in a moment throwing pints of blood over everything we
asked by Irene 
Algebra 3
Simplify: b^4(1/3b^2)(12b^8) (12x^2Y^4)(1/2x^5y) (rs)^3(25)^2(4r)^4
asked by Jennifer 
calc
Let f(x) = x2 + 3x + 2. Find the equation of the line containing (1, f(1)) and (3, f(3)).
asked by k 
Science
I want to see earth in satellite image. I know about google and wikimapia, are there any other sites that have satellite images for you to see for free?
asked by Sara 
english
brother is to mother as fly is to?
asked by Anonymous 
math
If f(x) = 3x + 9 and g(x) = −x2, then find f(g(1)).
asked by kevin 
maths
solve (x+2)(all squared)  (1x)(all squared) = 5
asked by Amy 
chemistry
what is the type of packing for body centered unit cell? i put ABAB but my answer is wrong
asked by blasting 
math
IF a plane can travel 2.00 x 10 to the power of 3 km in 3.00 hours, what is the velocity in metre/sec.?
asked by arilk 
math
What is the division rule
asked by jerry 
history of technology
Is a mimeograph machine a copy printer? If yes, can you tell me more?
asked by sierra (6th grade) 
math
suppose c is a subset of d and d is a subset of c. if n(c) = 5, find n (d).
asked by chris 
math
jessica had 24 customers open an account during the month, which is 60% of her monthly goal. What is her monthly goal. I came up with 40. am I right?? If not how do I figure this out. The other choices are 36 40 54 60 Thanks to all for your help.
asked by cathy 
5th grade
how many 2/3s are in 6?
asked by jr 
english
wath is deference?
asked by yamileth 
science
Es cells have the capacity to become almost any kind of human cell. What other medical problems, in addition to nerve regrowth, might be solved by their use
asked by le'lani 
calculus
dh/dx x = 7 , h (x) = (x^1/2 + 8x)(4  x^1)
asked by jeff 
Social Studies
Social studies citizenship civic books so i need 9 books
asked by Anonymous 
math
matrices: A=[5 4 6 9 8 7 4 3 9] B=[2 4 5 8 9 3 5 2 2] AB=? please show work if you can.
asked by anonymous 
calculus
Compute lim t→2(5t − 2 + (t^2/t − 1)).
asked by pop 
math
Two rational numbers with the sum of 1, product of 6/25 and quotient of 6. ( I have been working on this for a long time but I can't figure it out!)
asked by Bo 
criminal justice
During the middle Ages, defendants could avoid serving a harsh penalty if they were granted
asked by mark 
Physics URGENT
I did a lab on DC circuits, and we calculated the resistance of multiple resistors in parallel. Resistance of Resistor 1 & 2 = 1000 +/ 5% so R1 =1000+/ 50 R2= 1000 +/1 50 i need to calculate R using the equation... R= 1/R1 + 1/R2 I am confused as to what
asked by Katelynn 
trig
2sin(3x3.14)1 find the inverse form of this equation
asked by bob 
trig
find all solutions of the equation tan(sq)x=1
asked by claire 
science
what forces would be at work if you were trying to move a 20,000kg. block of stone?
asked by Anonymous 
science
can someone tell me what is...the ability of a solid object to return to its original size & shape after it has been strecthed. thank you
asked by Margaret 
Computers
Hi, does anyone know the difference between "public int getId()" and "public static int getId()" and when would you use them? thanks
asked by Vanessa 
math
thank you Ms.sue
asked by Anonymous 
Science.
Produced by detergent. _rot_
asked by Grace. 
English
Writing a research paper on anorexia in teens. Can you recommend some good resources?
asked by linda 
english
When refering to a person as another person (ex. My teacher was thie Hitler or all teachers) do i have to underline or italisize Hitler? If not does anything need done to it?
asked by Sarah 
chemistry
give a definition of ionic bonding
asked by lelia 
computer
can u help me in making a "quiz" wid reference by using java.cn u help me as soon as possble
asked by vikria 
To: drwls
Can you please have a moment to look at my other science post which you helped me on, thanks
asked by Sara 
math
(f+g)(1)when f(x)=x+5 and g(x)=x+7
asked by ReRe 
algebra
3y+9
asked by tammy 
college
r=2cm h=20cm
asked by Anonymous 
math
which is less than 3/4 4/5 2/3 6/7 8/10
asked by Anonymous 
marketing
canvass prices before buying
asked by sherilyn 
math
matrices: A=[5 4 6 B=[2 4 5 9 8 7 8 9 3 4 3 9] 5 2 2] AB=? please show the work if you can.
asked by anonymous 
writing
can any one tell me the pro of oniomania
asked by layla