Questions Asked on
April 10, 2012

Chemistry PLZ HELP!!!!!
give equations showing the commercial methods for preparations of the halogen (F2, Cl2, Br2, I2)
asked by Maci 
Area Geometry
Find the area of a decagon with a radius of 4mm. Find the area of an octagon with a radius of 10 cm.
asked by hope 
Geometry
You are planning to use a ceramic tile design in your new bathroom. The tiles are blueandwhite equilateral triangles. You decide to arrange the blue tiles in a hexagonal shape as shown. If the side of each tile measures 7 centimeters, what will be the
asked by Alexandra 
chemistry
A volatile liquid was allowed to evaporate in a 43.298g flask that has a total volume of 253 mL. The temp of the water bath wad 100 °C at the atmospheric pressure of 776 torr. The mass of the flask and condensed vaporous was 44.173g. Calculate the molar
asked by tiffany 
Math (Algebra)
I am having a bit of trouble with the question stated below. I am homeschooled and learning math on your own has proven to be quite the difficult task. If someone could please explain how to do this as thoroughly as possible, I would greatly appreciate
asked by Jessica 
chemistry
In the chemistry exp molar mass of a volatile liquid what will be the outcome if the hole in the aluminu foil was larger would it make the molar mass high or low. Or what will happen if yhr water vapors condensed under the aluminum foil before the final
asked by tiffany 
grade 11 physics
A championship golfer uses a nine iron to chip a shot right into the cup. If the golf ball is launched at a velocity of 20 m/s at an angle of 45° above the horizontal, how far away was the golfer from the hole when he hit the ball? What maximum height did
asked by sayan 
math
5 4 5a 2a 10b b 40 2 6 ? 2 5c What is the missing algebraic expression? Express your answer in terms of c.
asked by Al 
physics!
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b)
asked by Sarah 
physics
A converging lens (f = 12.6 cm) is held 8.55 cm in front of a newspaper, the print size of which has a height of 2.10 mm. (a) Find the image distance (in cm), (b) The height (in mm) of the magnified print.
asked by linds 
Chemistry
Ca(OCl)2 + 2NaCl + 2H2SO4 2Cl2 + CaSO4 + NaSO4 + 2H2O [We have to prepare 12 ml of 0.050 M Cl2 (Chlorine water) ] [We are given "solid Ca(OCl)2" , "0.20 M NaCl" and "0.50 M H2SO4" and "DI water"] What is the required quantity of Ca(OCl)2, NaCl and H2SO4
asked by Bunny 
Chemistry
1. Calculate the acetylsalicylic acid concentration (in mg/mL) of aspirin solution #2 in the Procedure section. Assume that 300 mg of acetylsalicylic acid has been weighed out. 2.3. (3 pts) Calculate the acetylsalicylic acid concentrations (in mg/mL) of
asked by Cassie 
math
How would I find out a persons weight? having the the height 65 inches and BMI is 30. Using formula B=703w/h^2
asked by Yvette 
Biochemistry
In the electron transport chain, electrons from FADH2 are eventually used to reduce O2 into H2O. Experimentally, the proton motive force created by this process will generate 2 ATP molecules from ADP and Pi, using ATP synthase. From the information
asked by Mike 
Geometry
A square has a side length of 95. What is the length of the diagonal of the square? Express your answer in simplest radical form.
asked by Cassie 
Geometry
A square has diagonal length 13 m. What is the side length of the square to the nearest centimeter?
asked by Cassie 
Geometry
A professional baseball diamond is a square. The distance from base to base is 90 ft. To the nearest foot, how far does a catcher standing at home plate throw the ball across the diagonal of the square to second base?
asked by Cassie 
Calculus
Please verify the answers~ Thank you! 1. Which of the following is the xintercept of the plane 2x4z+1=0? a) P(2,0,4) b) P(0,0,0) c) P(1/2,0,0) d) P(0,0,1/4) Answer is C. 2. Which of the following is not a direction vector for the plane 3x2yz+4=0? a)
asked by Antia 
Geometry
Children climb 8 ft to the top of a slide. The end of the slide is 1 ft above the ground and the slide rises at a 45 degree angle. If the slide makes a straight line from the top to the bottom, how far does a child travel down the slide? Round to the
asked by Cassie 
Geometry
You set up a makeshift greenhouse by leaning a square pane of glass against a building. The glass is 4.5 ft long and it makes a 30 degree angle with the ground. How much horizontal distance between the building and the glass is there to grow plants? Round
asked by Cassie 
Calculus
A line has Cartesian equation 3x2y+3=0 .Determine a direction vector for a line that is parallel to this line. Could someone explain to me why the answer is direction vector: d=(2,3)
asked by Antia 
Geometry
A square tablecloth has a line of embroidered flowers along the diagonal. The tablecloth is 48 inches on each side. How long is the embroidery line? Round to the nearest inch.
asked by Cassie 
Geometry
An equilateral triangle has a height of 26 inches. What is the length of each side of the triangle to the nearest centimeter?
asked by Cassie 
Chemistry
A 0.450gram sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the reaction is: CaCO3(s)+2HCl(aq) > CaCl2(aq) + H2O(l) + CO2(g) The excess HCl(aq) is titrated by 9.75 mL of 0.125 M NaOH(aq). Calculate the mass
asked by Katherine 
Chemistry
When an excess of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 4.01C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant
asked by Katherine 
Math
Moniques credit card charges interest of 20.85% per annum on unpaid balances on her march 12 statement. she had a balance of $739.65 due by the due date, she made the minimum payment (5% or 10.00, Whichever is greater.) On march 16. She made a purchase of
asked by Monique 
English
Thank you very much. Here are some more sentences on the same subject. Thank you. 1) The Hundred Years' War received a severe check from the 'Black Death', the bubonic plague which spread all over England in 1348. It was caused by fleas living on black
asked by Matthew 
physics
A ball is thrown upward with an initial velocity of 6.0m/s by someone on top of the building 34m tall who is leaning over the edge so that the ball will not strike the building on the return trip. (a) How far above the ground will the ball be at the end of
asked by jackie 
English
I left out the following sentences.Thank you very much.I need to rephrase number 5 and make it more concise. 1) By the 14th century a new middle class, both rural an urban, existed. The merchants increased their power by loaning money to the king for
asked by Matthew 
ecology
Could someone please tell me what is meant when people say that wind energy can be expensive or more expensive than fossil fuels?
asked by Anonymous 
science
can you save money on your electric bill from a regular electric company by choosing to use a percentage of wind power through them? Or does it make your bill higher?
asked by Anonymous 
Statistics
From a random sample of 500 registered voters in Los Angeles, 400 indicated that they would vote in favour of a proposed policy in an upcoming election. a) Test at the 10% significance level a politician’s statement that “those who are in favour of
asked by Yugi 
English
I left out two last sentences on history. Thank you very much, Writeacher. 1) The 14th century was also marked by the rise of a religious movement of reforms called Lollardy, whose leader was John Wycliffe. 2) The movement, which began at Oxford University
asked by Matthew 
algebra
Simplify by removing the factor of 1 5y 20 / 5y
asked by Coach 
economics
A firm that sells ebooks – books in digital form downloadable from the Internet – sells all ebooks relating to doityourself topics (home plumbing, gardening, and so on) at the same price. At present, the company can earn a maximum annual profit of
asked by Anonymous 
math
x÷430=x÷32/5
asked by ling 
Math
Three black and three white beads are arranged on a string forming a circular bracelet. How many different color combinations are possible?
asked by lynn 
English
Writeacher, how would you check this sentence? Prospero was his first king but now he pens Caliban up like a farm animal, so that he can't go anywhere he wants on the island. ("is anywhere he wants" possible??) I hope you are still there.
asked by Matthew 
Finance
ABC Drilling has debt with a market value of $200,000 and a yield of 9%. The firm's equity has a market value of $300,000, its earnings are growing at a 5% rate, and its tax rate is 40%. A similar firm with no debt has a cost of equity of 12%. Under the MM
asked by Nika 
Chemistry
One enzyme catalyzed reaction in a biochemical cycle has an equilibrium constant (K1) that is 10 times the equilibrium constant (K2) of a second reaction. If the standard Gibbs energy of the former reaction is  300 kJ mol1, what is the standard reaction
asked by harry 
Perimeter
Mr.lopez is putting u a fence around his vegetable garden. The garden is shaped liked a rectangle. The longer sides are 14feet, and the shoter sides are 9 an half feet long. How much fencing should mr. Lopez buy?
asked by Mr.lopez 
Finance
ABC Drilling has debt with a market value of $200,000 and a yield of 9%. The firm's equity has a market value of $300,000, its earnings are growing at a 5% rate, and its tax rate is 40%. A similar firm with no debt has a cost of equity of 12%. Under the MM
asked by Nika 
Perimeter
Mr.lopez is putting u a fence around his vegetable garden. The garden is shaped liked a rectangle. The longer sides are 14feet, and the shoter sides are 9 an half feet long. How much fencing should mr. Lopez buy?
asked by Mr.lopez 
math
the cost of travelling by bus is Rs10 for the first km and RS 3 for every additional km. how much must be paid for a journey of 20 km?
asked by anna 
healthcare reimbursement
What is the difference between hospital claims processing and professional (provider and/or CMS 1500) claims processing?
asked by Meagan 
English
Writeacher, I'm finding it difficult to check these sentences, which need to be revised grammatically. 1) The Tempest is the last one of Shakespeare’s plays. It’s very different from his previous ones. In fact it is not a tragedy, like Macbeth or
asked by Matthew 
math
Please can you Use an example to explain whether multiplying the same number to each value in the data set will affect its variance, give the relationship
asked by Fakaapo. Suetusi 
algebra
subtact (4y^5+3y)(2y^58y+9)
asked by miss c 
Chemistry
Using the information on the table of van der Waals Constants of Some Common gases, calculate the pressure exerted by 4.37 moles of chlorine gas confined in a volume of 2.45 L at 38 degrees Celsius. Compare the pressure with that calculated using the ideal
asked by Kathi 
Chemistry
Using the information on the table of van der Waals Constants of Some Common gases, calculate the pressure exerted by 4.37 moles of chlorine gas confined in a volume of 2.45 L at 38 degrees Celsius. Compare the pressure with that calculated using the ideal
asked by Kathi 
physics
An alarm clock uses 5.0 watts of electric power. If the clock is plugged into 120 volts outlet, what electric current is in the clock's circuit?
asked by FRANNY 
economics
Suppose that a business has developed a very highquality product and operates more efficiently in producing that product than any other potential competitor. As a consequence, at present it is the only seller of this product, for which there are few close
asked by Anonymous 
wave on
your mother is in the kitchen while you are inyour bed room with the door closed. she yells at you telling you its time for dinner. What type of wave is being produced?
asked by FRANNY 
Chemistry
Using the information on the table of van der Waals Constants of Some Common gases, calculate the pressure exerted by 4.37 moles of chlorine gas confined in a volume of 2.45 L at 38 degrees Celsius. Compare the pressure with that calculated using the ideal
asked by Kathi 
Algebra2
how do you solve this? A dice is rolled twice. What is the probability of getting a multiple of 3 on the first roll or a total of 7?
asked by A 
Calculus
Two automobiles are travelling on intersecting roads. The first automobile is travelling northeast at 35 km/h. The second automobile begins 7 km north of the first, and it is travelling east at 25 km/h. Assuming that these cars will continue at this rate,
asked by Antia 
Leadership
Rising Cost of Health Care
asked by Faith 
Chemistry
You have 250mL of a 0.56M solution of sodium acetate. How many mL of 0.50M acetic acid should be added to make a buffer of pH 4.40? I think this is a buffer system so I would use pH=pka + log base/acid so would I set this up as 4.40 = 4.74 + log base/
asked by Hannah 
physics
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b)
asked by linds 
Chemistry(Please check)
What is molar solubility of Al(OH)3 at 25 degrees C given the solubility product Ksp = 5.0e33? I set this up as Al^3+ + 3OH^ Ksp=[Al^3+][OH^]^3 5.0e33 = (x)(3x)^3 Before I go any further did I do this correctly?
asked by Hannah 
Calculus I
Find the derivative ** (sq root) y = (square root) x + (2nd sq root) x + (3rd sq root) x ** All the x's is under three sq roots y' = 1/2(sq rt) x + 1/(sq rt) x + 3/2(sq rt) x Is this right?
asked by Priscilla 
Chemistry
Dr.Bob, Arrange these acids in terms of increasing acidity: CH3COOH, NH3+CH2COOH, CH3CONHCH2COOH According to my Chem textbook,NH3+CH2COOH has a low pKa value since both the COOH & NH3+ are protonated,so it is most acidic. CH3COOH is a weak acid, but I'm
asked by Meenaakshi 
arithmetic
Determine the 10th and 21st terms of the arithmetic sequence 4+7x, 5+9x, 6+11x
asked by Nkululeko Hadebe 
calculus
verify that y=C1e^2x + C2e^3 is a solution of the differential equation y''+y'6y=0
asked by mari 
calculus
the management of a company has decided that the level of its investment should not exceed C dollars. Furthermore, managament has decided that the rate of net investment (the rate of change of the total capital invested) should be proportional to the
asked by mari 
Statistic
Out of 150 ST130 students in 2010, 52% passed. A sample of 30 randomly selected ST130 students resulted in 65% passed. i. Describe the population and sample. ii. Identify the parameter and give its value.
asked by Fakaapo. Suetusi 
calculus
verify that y=c/x^2 is a general solution of the differential equation y'+(2/x) y=06y=0 then find a particular solution of the differential equation that satisfies the side condition y(1)=2
asked by mari 
calculus
determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false a) the function f(x)=3/2 +cx^2 is a solution of the differential equation xy'+2y=3 b) the differential
asked by jhony 
calculus
solve the firsorder differential equation by separating variables y'=xy^3/√(1+x^2)
asked by jhony 
calculus
assume that is the rate of change of the unit price of a commodity is proportional to the diference between the demand and the supply, so that dp/dt=k (DS) where k is a constant of proportionalily. suppose that D=402p, S=5+3p, and P(0)=4. find a formula
asked by Anonymous 
calculus
find a function f given that (1) the slope of the tangent line to graph of f at any point P(x,y) is given by dy/dx=3xy and (2) the graph of f passes through the point (0,2)
asked by mabel 
Physics please help!
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b)
asked by linds 
calculus
find the solution of the initial value problem y'=xye^x; y(1)=1
asked by Anonymous 
math
Web Results For: marty ate one fourth of a pizza and rob ate onefifth of a pizza . how could rob have eaten more pizza than marty?
asked by ug7yg8y 
Chemistry
If you add 0.35grams NaF to 150mL of a 0.30M HF, what is the pH of the resulting solution? To start off would I use the value of 1.4e11 for F^^ and 7.2e4 for HF? Chemistry(Please help)  DrBob222, Tuesday, April 10, 2012 at 12:04am This is a buffer
asked by Hannah 
physics
The source of all wave motion is ____________________. A) something vibrating.B) a harmonic object, or system of objects.C) any energy source.D) a region of high and low pressures.E) transverse motion.
asked by Jim 
Math
Mandy's kitchen measures eight feet by seven feet. If she is making a scale drawing of one inch = two feet, how many inches will she use for eight feet? How many inches will Mandy use for seven feet?
asked by please help me!! 
Algebra
What is the solution set to 8x + 11 = 8x + 8
asked by Katie 
organic chemistry
what happens to so3 when placedat high temp?
asked by himani 
Math
Verify the identity & Justify the step.s cot (thetapi/2)=tan theta
asked by Leah 
physics
Using energy considerations, calculate the average force a 60.0 kg sprinter exerts backward on the track to accelerate from 2.00 to 6.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him.
asked by Amelia 
english
In the sentence: "Are you already almost finished?" "Are" is functioning as a linking verb. True or False
asked by Danielle 
physics
The number of electrons that move about the nucleus of an electrically neutral atom is the same as the number of ____________________. A) protons in the nucleus.B) quarks in the nucleus.C) protons + neutrons in the nucleus.D) neutrons in the nucleus.E)
asked by Jim 
Math
Factor 3x^216X+K and find the value of K.
asked by Hanu 
physics
Boxing gloves are padded to lessen the force of a blow. (a) Calculate the force exerted by a boxing glove on an opponent's face, if the glove and face compress 7.00 cm during a blow in which the 8.00 kg arm and glove are brought to rest from an initial
asked by Amelia 
physics
Using energy considerations, calculate the average force a 60.0 kg sprinter exerts backward on the track to accelerate from 2.00 to 6.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him.
asked by Amelia 
physics
How long will it take a 1630 W motor to lift a 285 kg piano to a sixthstory window 16.0 m above?
asked by Amelia 
physics
During a workout, the football players at State U. ran up the stadium stairs in 61 s. The stairs are 145 m long and inclined at an angle of 30°. If a typical player has a mass of 105 kg, estimate the average power output on the way up. Ignore friction and
asked by Amelia 
physics
To say an object has a negative charge is to say it has an excess of what kind of charges? A) Either protons or electrons.B) Electrons.C) Protons.D) None of these
asked by Jim 
Math
How many terms does a trinomial have?
asked by Aurora 
Life Orientation
In which ways does air pollution impact on communities within South Africa
asked by Precious 
calculus test corrections. 1 question
Describe the linear programming situation for this system of inequalities. x < 1 y > 0 3x + y < 5 the answer is unbounded. please tell me why
asked by brandi 
Precalculus
Find the minimum value of f(x, y) = y – x + 1 for the polygonal convex set determined by this system of inequalities. x > 0 y > 0 2x + y< 4 the answer is 1. please tell me why
asked by brandi 
Computer Question for school
is there a way to, on an online video, copy the screen? I am watching a direct instruction for schoolwork and don't know if i can, can I?
asked by ♥rebel•stupidity=kathy♥ 
math
a yellow marble will be drawn from a bag containing 2 black and 6 yellow marbles. what best rep[resents the probability of the event? 0%/25%/50%/75%/100%
asked by blanche 
computers in day care
an encyclopedia on cdrom would be most appropriste for a typical tow year old, three year old, four year old, eight year old
asked by rena 
physics
If the critical angle of a liquid is 41.4 degrees find the index of refraction for that liquid
asked by ******tasha****** 
Just Curious
A few questions out of curiosity. What does jiskha mean? And what is your view point of Pluto Since Pluto is no longer considered a planet, do you think it should still e called a planet? Not just dwarf planet, but a planet like Mars or Earth? Thanks and
asked by ♥rebel•stupidity=kathy♥ 
math
a yellow marble will be drawn from a bag containing 2 black and 6 yellow marbles. what best rep[resents the probability of the event? 0%/25%/50%/75%/100%
asked by blanche 
money
how would you ask someone for money for school???
asked by Kaya 
English
Writeacher, I know you are not there. However, I urgently need someone of you to check this short story. I hope Ms Sue or anyone else will help me. 1) I spent my Easter holidays with my family at my grandparents' house in London. I had a very good time
asked by Matthew 
math
find T so x3 is a factor of f(x)=x^34x^2+Tx+3
asked by Anonymous 
English
Bobpursley, Ms Sue I urgently need you to check this paragraph. Thank you very much in advance!!! I made a change in the last sentence. 1) I spent my Easter holidays with my family at my grandparents' house in London. I had a very good time there,
asked by Matthew 
Chemistry
16. You have a series of four chemical reactions (1> 2 > 3 > 4). How do you calculate the H2 if you know the other H values? H2 = (H1)(H3)/(H4) H2 = H4 (H1 + H3) H2 = H1 + H3 + H4 H2 = H1 + H3 H4
asked by JoJo 
Algebra 1
(2x^3  x^2  24x + 12) divided by (2x  1)
asked by stan 
Trig
Rewrite 7pi/5 in degrees.
asked by Rina 
Chemistry
17. You have the following equations: 2S (s) + 3O2 (g) 2SO3 (g), H = 792 kJ 2S (s) + 2O2 (g) 2SO2 (g), H = ? 2SO2 (g) + O2 (g) 2SO3 (g), H = 198 kJ What is the missing H?
asked by JoJo 
English
I have been writing this story for English class and would love some input on what i should add to this story. I don't want it to make it a sappy story either. Also sorry for the grammar errors i haven't perfected it yet. The last man on earth sat alone in
asked by Steve 
Chemistry
12. In a calorimeter, 10 g of ice absorbs heat with an enthalpy of fusion of 334 J/g. What is the heat absorbed? q = mCHf I am having a lot of trouble on this type of problem in chem. Help and an explanation would be greatly appreciated. Thank you.
asked by JoJo 
science
1. The surface tension in a cup of water is caused by _____. (1 point)attractive forces between the water and its container attractive forces between water molecules adhesive forces between water molecules adhesive forces between the water and its
asked by NIKE 
math
2+log2(x+2)=3
asked by Anonymous 
physics
A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics 
asked by Malika 
math
(5x^2 + 9) + (7x^2 + 8)
asked by Cheril 
math
(5s + t) + (3s + 4t)=
asked by Cheril 
math
(3n^2 + 4n) + (n^2 + n) = _____
asked by Cheril 
math
(2a + 3b + c) + (a + 3b + 4c) =?
asked by Cheril 
grammar
1. If we can meet with the patient and he / him / himself, we can discuss possible alternative treatments. A) he B) him C) himself 2. An argument between her boyfriend and her / she resulted in the latest injury. A) her B) she 3. The patient’s son is
asked by Jenny 
Math
You invest $7,000 in a twoyear CD. At the end of the 2 years, you receive $8,331.97. Assume you left the first year' s interest in the account, what was your yearly interest rate?
asked by Pat 
Chemistry
If 2 grams of acetic acid is reacted with excess 1pentanol, what mass of pentyl acetate would you expect to achieve theoretically?
asked by Leon 
physics
A Ushaped tube is partly filled with water and partly filled with a liquid that does not mix with water. Both sides of the tube are open to the atmosphere. If h1 = 0.46 m and h2 = 0.25 m, what is the density of the liquid? on the left side of the tube is
asked by Adam 
Physics
A doubleslit interference experiment is performed with light from a laser. The separation between the slits is 0.58 mm, and the ﬁrstorder maximum of the interference pattern is at an angle of 0.060 ◦ from the center of the pattern. What is the
asked by Angel 
Arithmetic
Find a geometric series which has a third term of 7/4 and a sum to infinity of 14.
asked by Piwo 
Stats
A study of the students taking distance learning courses at a university finds that they are mostly older students not living in the university town. Choose a distance learning student at random. Let A be the event that the student is 25 years old or older
asked by Anonymous 
math
a jar contains 27 blue blocks 18 red blocks 12 orange blocks and 43 green blocks You put your hand in the jar and without looking pull out a block. About what fraction on the time would you expect to get a red block?
asked by Madison 
Physics/math
A gun with a muzzle velocity of 1200 feet per second is fired at an angle of 6 degrees with the horizontal. Find the vertical and horizontal components of the velocity.
asked by Cydni 
science
a 40kg student goes to jupiter where the rate of acceleration is 24.5m/s squared what is the students weight on jupiter?
asked by melissa 
Math
If twenty people in a factory make 43 shoes in [(3)^.5] / 2 hours, then how many shoes do they make in an eight hour day? 397?
asked by Jarrod 
Math
3 black beads and 3 white beads are placed on a string in a circular fashion. How many possible color arrangements are there? *Reiny answered the question...just want to check my answers as to the color arrangements. Anyone?
asked by lynn 
art
1. This is an identifiable symbol that stands for a company. (1 point)motif logo cartoon sign 2. This term refers to an illustration in an early handmade manuscript. (1 point)drawing photograph illumination print 3. This term refers to different fonts
asked by NIKE 
physics 2
A concave mirror has a focal length of 27.0 cm. The distance between an object and its image is 46.5 cm. Find the object and image distances, assuming the following. (a) that the object lies beyond the center of curvature do = di = (b) that the object lies
asked by Anne 
Physics
Why is it that interference effects don't show up regularly in glass window panes with two surfaces?
asked by Anonymous 
physics
A 12 kg toboggan is pulled along at a constant velocity on a horizontal surface by a horizontal force of 11 N How much horizontal force is needed to pull the toboggan at a constant velocity if two 57 kg girls are sitting in it ?
asked by Melissa 
math/physics
Forces with magnitudes of 2000 newtons and 900 newtons act on the machine part at angles of 30 degrees and 45 degrees respectively, with the xaxis. Find the direction and magnitude of the resultant of these forces.
asked by Cydni 
Life orientation
What according to the bcea applies with regard to the contraventions that you have identified?
asked by NOKULUNGA 
Physics
A pair of narrow parallel slits separated by a distance of 0.253 mm are illuminated by the green component from a mercury vapor lamp (λ = 545.1 nm). What is the angle from the central maximum to the ﬁrst bright fringe on either side of the central
asked by Angel 
Chemistry
What mass of sodium chloride is produced when chlorine gas reacts with 0.29 grams of sodium iodide? Unbalanced equation is given below: NaI + Cl2 > NaCl + I2
asked by Halie 
physics
what are the methods of computing the veolicty of a particle in one dimensona motion from a graph ?
asked by kelly 
physics
which of collowing situations describe a particle that might have a nonzero velocity? canbe more than one A) a particle that has a constant position as a function of time B) a particle that has its position changing as a fnction of time c)when you graph
asked by kelly 
Data management
Hugo has a job interview at Telus. He has a 56% of waking up late on the morning of the interview. When he wakes up late he has a 33% chance of missing his bus to take him to the interview. At this rate he will be late and he has a 27% chance of actually
asked by Anonymous URGENT PLS 
U.S. History
What are some New Deal programs that were not successes? It doesn't have to be a lot, just two or three. Also, was the National Recovery Act (NCA) a failure? Thank you!
asked by Annelise 
physics
A pebble drops straight down into a tub of water, setting off ____________________ waves that travel at the boundary between the water and air.
asked by Raeme 
Math
Hugo has a job interview at Telus. He has a 56% of waking up late on the morning of the interview. When he wakes up late he has a 33% chance of missing his bus to take him to the interview. At this rate he will be late and he has a 27% chance of actually
asked by URGENT PLS 
Physics
A ^9 {\rm {\rm Be}} nucleus containing four protons and five neutrons has a mass of 1.50×10−26 {\rm kg} and is traveling vertically upward at 1.45 {\rm km}/{\rm s}. If this particle suddenly enters a horizontal magnetic field of 1.15 {\rm T} pointing
asked by Kaitlin Carter 
physics
To say a substance is electrically polarized is to say that its net charge is ____________________. A) either negative or positive, but relatively weak.B) weakly positive in sign.C) None of these.D) is normally zero with opposite charges on opposite
asked by Jim 
language arts
Having trouble deciding on a review question between and or but. The sentence says, "Newton's ideas about motion are called laws, (and, but) Einstein's idea about relativity is called a theory." Thanks.
asked by Brandi 
Physics
Light falls on a double slit with slit separation of 2.19 × 10 −6 m, and the ﬁrst bright fringe is seen at an angle of 12.7 ◦ relative to the central maximum. What is the wavelength of the light? Answer in units of nm
asked by Angel 
physics
Charge polarization is normally produced by ____________________. A) nuclear interactions.B) contact.C) induction.D) friction.E) electrostatic means.
asked by Kristie 
physics
Which of these are correct for an electric field? A) It's a vector quantity, and can be cancelled.B) Three of three are correct.C) It stores electric energy.D) Two of three are correct.E) It's the altered space surrounding electric charge.
asked by Kristie 
Physics
A block of aluminum that has dimensions 2.07 cm by 2.55 cm by 5.00 cm is suspended from a spring scale. The density of aluminum is 2702 kg/m^3. (a) What is the weight of the block? 0.699 N (b) What is the scale reading when the block is submerged in oil
asked by Maryam 
HCS/490
Do employers have the right to screen employees or potential employees to learn if they are smokers, have chronic diseases, or are overweight? Explain.
asked by B 
physcis ! HELP !!!!
which of collowing situations describe a particle that might have a nonzero velocity? canbe more than one A) a particle that has a constant position as a function of time B) a particle that has its position changing as a fnction of time c)when you graph
asked by kelly 
language arts
I've got one more question on conjunctions. The sentence is "One bird you are sure to see is McKay's bunting, which breeds here (and, but) nowhere else." I was thinking it might be but since it is contrasting but wasn't sure. Thanks.
asked by Brandi 
physics
Electric potential is measured in units of ____________________. A) watts.B) joules per coulomb, or volts.C) joules.D) ohms.E) amperes.
asked by Kristie 
physics ! HELP PLEASE !!!!1
what are the methods of computing the veolicty of a particle in one dimensona motion from a graph ?
asked by kelly 
to ms.sue
the basketball game is tied.your team has the ball.there is only enough time for one more shot.based only on the information in the table,which player would you choose to take the shot? why? player: shots missed: shots made: 12 5 1 6 5 2 0 3 3 2 9 4 3 4 5
asked by Celest 
math
what is the answer and estimation for 404x2
asked by deliah 
trig/precalc
a car's flywheel has a timing mark on it's outer edge. the height of the timing mark on the rotating flywheel is given by y=3.55sin[x  (pi/4)]. graph one full cycle of this function. I was not taught how to graph a function like this, only the simple y=
asked by tabby 
Chem 1010
Determine how many moles of HCL are contained in 44.9 mL of 8.00 M solution of HCl. Express your answer in decimal form rounded to three decimal places. Do not include units with your answer.
asked by Sirena 
Chem 1010
15.3 g of KCl (MM = 74.55 g/mol) is dissolved in enough water to make 600 mL of solution. Calculate the molarity of the KCl solution.
asked by Sirena 
Chemistry
What 3 compunds can be used to prepare oxygen in the laboratory? What are the reactions for each of the three compounds?
asked by John 
Algebra 2
The sum of two numbers is 100. One number is four more than three time the other number. What are the last numbers?
asked by Nancy 
Chem 1010
Determine how many moles of HCL are contained in 44.9 mL of 8.00 M solution of HCl. Express your answer in decimal form rounded to three decimal places. Do not include units with your answer.
asked by Sirena 
Physics
Light falls on a double slit with slit separation of 2.19 × 10 −6 m, and the ﬁrst bright fringe is seen at an angle of 12.7 ◦ relative to the central maximum. What is the wavelength of the light? Answer in units of nm Can the person post the steps
asked by Angel 
Physics
A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics 
asked by Malika 
math
What equilateral triangle would have the same area as a triangle with side 6, 8 and 10?
asked by Baba Don Cooler 
Physics
A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water.
asked by Akbar 
Physics
A house with its own well has a pump in the basement with an output pipe of inner radius 6.4 mm. Assume that the pump can maintain a gauge pressure of 420 kPa in the output pipe. A showerhead on the second floor (7.5 m above the pump's output pipe) has 38
asked by Angelina 
Chemisty
A patient has been trying to achieve total blood cholesterol of 175 mg or less per 100 mL. A recent test result of a 3 mL blood sample found that 4.95 mg cholesterol were present. Has the patient reached the goal?
asked by Wyatt 
Chemisty
How many milliliters of 5.50 M HCl must be diluted to make 350. mL of a 0.500 M solution?
asked by Wyatt 
Chemisty
25.0 mL of 0.250 M MgCl is transferred to a 300.0 mL volumetric flask and diluted to the mark with deionized water. What is the concentration of the dilute solution?
asked by Wyatt 
Math 3rd grade
Fred needs to do quite a few errands. He needs to stop by the cleaners, the post office, the hardware store, and the bank. There are a number of ways he can tackle his list of stops. How many ways can he accomplish his tasks?
asked by Andrea 
Geometry
Right triangle ABC has an area of 32^3 cm^2. The measure of
asked by Cassie 
Geometry
An equilateral triangle has a perimeter of 120 inches. What is the area of the triangle? Express your answer in simplest radical form.
asked by Cassie 
english
write a paragraph of 57 sentences to explain how to study for a test. Include at least one single word adjective, one single word adverb, two adjective prepositional phrases and two adverb prepositional phrases. Make sure you identify the adjective,
asked by meme 
Geometry
a soccer goal is 24 feet wide. point a is 40 feet in front of the center of the goal. point b is 40 feet in front of the right goal post. from which point would you have a better chance of scoring a goal?
asked by Chuck 
Pyreenes Mountain Range
Are there are col fields a long the Pyrenees Mountain range?
asked by ♥rebel•stupidity=kathy♥ 
Algebra 2
which of the following are not polynomials? A. x^4+ πx^3+√2x B. 3x+x^4 C. 4x^3+2x^2+ √x D. 2x^3/5x/3+π E.x/45/x+10
asked by Nancy 
Chemistry
Determine the mass of calcium hydroxide produced when calcium carbide (CaC2) reacts with 0.64 grams of water according to the following balanced chemical equation: CaC2 + 2H2O > Ni(OH)2 + NaNO3
asked by Halie 
to ms.sue
thank you ms.sue.i will remember you forever! here's a special poem for you! ms.sue, she's my favorite teacher too. she gives me ideas, mamamia. sometimes I ask her questions twice, she is super nice. give a hip hip hooray, today, for the best volunteer,
asked by Celest 
to ms.sue
i have one more question.it says which team is better, lions: 6 of 8 cyotes: 8 of ten i know the answer is that no team is better because their both the same. how do i explain it why?
asked by Celest 
physics
Touch a 5000V charged balloon and you're not harmed because, although the energy/charge ratio is high, there is ____________________. A) very little conduction of electricity.B) very little energy on the balloon.C) no way this large amount of energy can
asked by Kristie 
Social Studies 7R  Bill of Rights Project
What are the 8 amendments and what are their jobs (that includes interesting facts)? Is their a website for that. Plus make sure it's on a 7th grade social studies level. Thank You! :)
asked by Laruen 
SS Help!
The 2nd amendment is "the right of the people to keep and use bear arms". what does Right to keep and bear arms means??? (please tell in a 7th grade level)
asked by Laruen 
6th geo
a prominent physical feature along the west coast of england is th
asked by ♥rebel•stupidity=kathy♥ 
Chemistry
If you have 250 mL of 2 M of sodium sulfate diluted to make 0.500 M of sodium sulfate, how would you figure out the volume?
asked by Julia 
science
1. As a sample of matter is cooled, which property of its particles increases? (1 point)average kinetic energy pressure buoyancy cohesive forces 2. Kinetic energy is the _____ of motion. (1 point)temperature energy heat state 3. Substances that have a low
asked by NIKE 
Intermediate algebra
Find the product.(x7)(x+7)
asked by Lueshelle 
Chemistry
HOBr (aq) H+ (aq) + OBr (aq), Ka = 2.3 x 10^9 Hypobromous acid, HOBr, is a weak acid that dissociates in water, as represented by the equation. (a) Calculate the value of [H+] in a solution of HOBr that has a pH of 4.95. Ans: 1.1 * 10^5 M (b) Write the
asked by Confused 
Intermediate algebra
Essay.show work Find the following product.(y10)^2
asked by Lueshelle 
intermediate algebra
Short answer.The lenght of the side of a rectangular desk is given by 5x8y cm.The lenght of the front is given by 5x+8y cm.What is the algebraic expression for the are of the top of the rectangular desk?Include the correct units as part of your answer
asked by Lueshelle 
Math
If a tire rotates at 150 revs/min when the truck is travelling 40km/h, what is the circumference of the tire? 4.44 meters
asked by Jarrod 
to ms.sue
thank u so
asked by Celest 
Physics
in an impulse/ change in momentum problem where mv(final)mv(initial)=Ft if the initial velocity is zero can i cancel out the masses?
asked by Emily 
ms.sue
can you give me an easy way how to find percentages these ways: _____% of ___?_____ = ___?____ __?___ of ________=_________
asked by Celest 
physics
a 15 kg bucket is raised to paint a ladder with an acceleration of 3 m/s.^2 what is the tension in the rope?
asked by Leah 
calculus test corrections. 1 question
Find the minimum value of f(x, y) = y – x + 1 for the polygonal convex set determined by this system of inequalities. x > 0 y > 0 2x + y< 4 the answer is 1. please tell me why
asked by jonna 
math
Sonya spent 3/8 of her money and then $15 left. How money did Sonya originally have?
asked by tati 
8th grade math
The amount of vitamin c in the breakfast cereal varies directly with the serving size. If 1 and 1/4 cups of cereal provides 10% of the recommended daily value of vitamin c, what percent of the recommended daily value of vitamin c is in two cups of cereal?
asked by Lizzy 
physics
Calculate the net charge on a substance consisting of a combination of 4.3 multiplied by 1013 protons and 2.5 multiplied by 1013 electrons.
asked by brooke 
math
________% of 16= 12 ________% of 24= 6
asked by Celest 
physics
At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.08 multiplied by 1015 m. What is the magnitude of the repulsive force pushing these two spheres apart?
asked by brooke 
calculus test corrections. 1 question
Which is true for the graph of x^29/x^24 the answer is vertical asymptotes at x = ±2 but i don't understand why.
asked by jonna 
physics
An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force acting on the alpha particle when the alpha particle is 1.7 multiplied by 1014 m from the gold nucleus? N
asked by brooke 
Chemistry
Hydrogen Peroxide decomposes to produce oxygen gas and water, What mass of hydrogen peroxide (H2O2) nust decompose to produce 0.77 grams of water?
asked by whale 
mechanics of machines
A body of weight 500N is lying on a rough plane inclined at angle 3.2 with the horizontal. It is supported by an effort p, parallel to the plane. Determine the minimum and maximum value of P, for which the equilibrium can exist if the angle of friction is
asked by mustapha 
Math
The time it takes Javier to go to school and his walking rate are inversely proportional. If it takes him 12 mins walking at 3 mph how long does it take if he walks at 4 mph?
asked by Lizzy 
HELPPP~Reading! ! !
Can you PLEASE PLEASE PLEASE PRITTY PLEASE WITH A CHERRY ON TOP help me find a link that will give me the meanings of idioms?
asked by Lily Palmer 
physics
A charge of 2.1 nC and a charge of 4.7 nC are separated by 57.90 cm. Find the equilibrium position for a 4.7 nC charge. _______________cm from the 2.1 nC charge. i know you have to use coulomb's law but how can i use it
asked by jared 
CHEM
When 0.5 mole of CO2 and 0.5 mole of H2 were forced into a litre reaction container, and equilibrium was established: CO2(g) + H2(g) H2O (g) + CO (g) Under the conditions of the experiment, K=2.00 a) Find the equilibrium concentration of each reactant and
asked by Anonymous 
to Lizzy and ms.sue
thank you lizzy. thank you ms.sue.your strategy really helps me alot faster and easier.
asked by Celest 
Ms, Sue help me in science
1. As a sample of matter is cooled, which property of its particles increases? (1 point)average kinetic energy pressure buoyancy cohesive forces 2. Kinetic energy is the _____ of motion. (1 point)temperature energy heat state 3. Substances that have a low
asked by NIKE 
algebra
In the formula p(x) = .1x^2 + 50x 300, could you describe the meaning of the number .1 and 300 in the formula?
asked by Anonymous 
math
what is the derivative of y=ln(x/4)
asked by help 
Physics
A house with its own well has a pump in the basement with an output pipe of inner radius 6.4 mm. Assume that the pump can maintain a gauge pressure of 420 kPa in the output pipe. A showerhead on the second floor (7.5 m above the pump's output pipe) has 38
asked by Angelina 
8th grade math
If the formula D(x,y) = (.7x,.7y) is applied to preimage point (5, 7), what is the image point?
asked by Piggy 
Discrete Mathematics
It was proven during the previous lecture that 1+2+3+....+n=[n(n+1)]/2. Using that result, find the sum of all 3digit palindromes: a palindrome is a number that can be written as ABA, where 1=
asked by Eric 
8th grade math
The dimensions of a rectangular prism are all whole numbers greater than 1". If the volume is 165 cu", and the height is 5", what is the perimeter of the base?
asked by Piggy 
8th grade math
Two towers are similar. The area of the larger tower is 400 pi ft^2 and the area of the smaller tower is 169 pi ft^2. What is the ratio of the heights of the towers?
asked by Piggy 
Ms. Sue thank you
Ms. Sue. I just wanted to say I think you are a very helpful, nice,smart and intelligent woman. Thanks for your help. :) Thank You SO Much!!!
asked by ♥rebel•stupidity=kathy♥ 
chemistry
Calculate the pH of the resulting solution if 30.0 mL of 0.300 M HCl(aq) is added to (a) 35.0 mL of 0.300 M NaOH(aq). (b) 40.0 mL of 0.350 M NaOH(aq).
asked by anon 
Statistics
Cellular Phone Sales The probability that a cellular phone company kiosk sells X number of new phone contracts per day is shown below. Find the mean, variance, and standard deviation for this probability distribution. X 4 5 6 8 10 P (X) 0.4 0.3 0.1 0.15
asked by Victor 
physics
The weightless horizontal bar in the figure below is in equilibrium. Scale B reads 4.00 kg (N.B. as you know, the scale should read N, but no one told the manufacturer). The distances in the figure (which is not to scale) are: D1 = 9.0 cm, D2 = 8.0 cm, and
asked by James 
physics
The system in the Figure is in equilibrium. A mass M1 = 242.0 kg hangs from the end of a uniform strut which is held at an angle theta = 41.0o with respect to the horizontal. The cable supporting the strut is at angle alpha = 27.0o with respect to the
asked by James 
ETHICS
a 350 to 700word essay comparing the similarities and differences between virtue theory, utilitarianism, and deontological ethics. Include the following in your essay: • A description of the differences in how each theory addresses ethics and morality
asked by Anonymous 
physics
The volume of a gas is 2.6 L and its temperature is 338 K . If the volume of the container were changed to 3.2 L, what temperature would the gas be? (All other values remain constant.)
asked by jwayne 
Chemistry
Arrange these acids in terms of increasing acidity: CH3COOH, NH3+CH2COOH, CH3CONHCH2COOH Dr.Bob asked me what NH3+CH2COOH is.NH3+CH2COOH is obtained when 1 mol of glycine is added with a very strong acid,which results in both the amino & carboxyl groups to
asked by Meenaakshi 
Accounting
$10,000,000 face value, zero coupon bonds due in 20 years, priced on the market to yield 8% compounded semiannually.
asked by Bryan 
Math
Write these in factored form? 12 +6x x+x+x+6 x^2 + 3x x^2 + 4x +3 Combine like terms? 3x + 4x 11 + 5 + 2x + 6x 3x 2  x + 9 7x  8  11x x^2 + 2 + 7x + 4  x x + 5x + x^2 + 3 + 2x^2 I don't really understand it so if you could help me, thaanks c:
asked by Mika 
Science
Which answer best describes the purpose of the muscles in the human body? A)to protect tissues and form blood B)to remove and use nutrients from food C)to produce movement and provide support D)to combine blood and oxygen needed for movement
asked by Sally urgenttt 
algebra
Find three ordered pairs that satisfy the equation. y = x + 2
asked by Randy 
ALGEBRA
Assume f(x) = x2 + 3. Find the functional value requested. f(7)
asked by Randy 
ALGEBRA
Find three ordered pairs that satisfy the equation. y = 5 x  4 (0, ), (1, ), (2, )
asked by Randy 
Physics
A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water.
asked by Akbar 
Physics
A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics 
asked by Malika 
6th geo
The Welsh language is an important reason why Wales is a unique part of the United Kingdom. After reading about the origins of the Welsh language and how it’s used today, describe two steps being taken to preserve the language and ensure its future.
asked by ♥rebel•stupidity=kathy♥ 
Calculus
Given: available material= 1200cm^2 Box w/ square base & open top Find: Largest possible value of the box Can anyone give me a detailed, stepbystep explanation for this problem. I'm studying for an exam and have been working on this for awhile. The help
asked by M 
8th grade math
You are making a box out of an 11in by 8in piece of poster board by cutting congruent squares out of the four corners and folding up the edges. To the nearest inch, what size square should you use to maximize the volume?
asked by Piggy 
8th grade math
A cylinder has a cone on top. The base of the cone is congruent to the base of the cylinder. The diameter of the base is 16ft. The height of the cylinder is 16ft. and the height of the cone is 9th. What is the volumeof the entire figure?
asked by Piggy 
Geography
What are some water sources for the Boreal Plains?
asked by Griffin 
Math
Tasha saw a sailboat while walking along the pier. She thinks it is the tallest sailboat she has ever seen. The shadow cast by the boat was 14 ft long, while Tasha's shadow was only 2 ft long. If Tasha is 5.5 ft tall, how tall was the sailboat, in feet?
asked by Diana 
English
Mi Liang kept painting. The waves got highte and higher. Then the waves broke the boat, and the emperor could not get back to the palace. (In this passage, what is the meaning of 'Then'? 1. At that time 2. After that 3. In that case)
asked by rfvv 
Computer Science
I am making a object oriented program and hashing the list of make of an electronic and type to the JCombobox...i am getting this number Exception error...it will nice if you could tell why am i getting it eventhough i am doing the casting and everything.
asked by Gaurav 
Science
an object will sink with a density of what?
asked by Valerie Belegit 
Physics
The figure below shows two current carrying wires and the directions of the currents they carry. The wires carry the following currents: I1 = 7.1 A and I2 = 8.9 A. Wire 1 is at (0, 5.8) mm; wire 2 is at (15.1, 0) mm; point P is at (15.1, 5.8) mm. Wire 1 is
asked by Jessica 
Math 8th Grade
What is the yint of the graph of 4x+2y=12
asked by Lana Von Monroe 
Math 8th Grade
Which number serves as a counterexample to the statement below: All positive integers are divisible by 2 or 3 I need as much as possible.
asked by Lana Von Monroe 
Math
Find the value of csc Q for angle Q in standard position if the point at (3, –1) lies on its terminal side.
asked by harry 
chemistry
we have a bag that can hold up to 775 ml. we have baking soda and 6 molar of hydrochloric acid. how can we find out how much baking soda and acid we need so that when they react, the gas will fill the bag up just enough so that it wont pop
asked by george 
chemistry
Calculate the partial pressure of propane in a mixture that contains equal numbers of of moles of propane (C3H8) and butane (C4H10) at 20 degrees C and 844 mmHg. (R=0.082 Latm/K mol)
asked by Randy 
chemistry
What volume will 12.0 g of oxygen gas occupy at 25 degrees celcius and a pressure of 52.7 kPa?
asked by Anonymous 
Chemistry
Calculate the partial pressure of helium in a 1.00 L flask that contains equal numbers of moles He, Ne, and Ar at a total pressure of 5.26atm
asked by Randy 
Geometry
Circle C is centered at (4,3). Write the equation of the line tangent to circle C at point P(2,5). (pointslope form)
asked by Kate Jenson 
Science
what are two things that you must know to determine speed?
asked by ellie 
math
Suppose $5000 is deposited in a bank account that compounds interest four times per year. The bank account contains $9900 after 13 years. What is the annual interest rate for this bank account? i already set it up but i don't know where to go from there.
asked by Patty 
geometry 1
a secantsecant angle intercepts arcs that are 3/5 and 3/8 respectively. Find the measure of the secantsecant angle.
asked by Kate Jenson 
English
What trait best describes gandi
asked by Samanatha 
geometry 2
circle K has an area of 64 pi units ^2. Find the exact length of the arc intercepted by a 210 degree central angle in circle K.
asked by Kate Jenson 
ALGEBRA
Find three ordered pairs that satisfy the equation. y = x + 2
asked by Randy 
ALGEBRA
Assume f(x) = x2 + 3. Find the functional value requested. f(7) =
asked by Randy 
geometry 3
Given: Circle O with radius of length 4 units. measurement of arc PQ=141 degrees. Find the cordinates of point P. Circle O(0,0)
asked by Kate Jenson 
physics
If the string in one of the panels of the figure below is vibrating at a frequency of 5.0 Hz and the distance between two successive nodes is 0.39 m, what is the speed of the waves on the string?
asked by Anonymous 
ALGEBRA
$$ x = \dfrac{1}{{\color{red}2}} y^2 $$
asked by Randy 
SS7R  Bill of Rights Project
3rd Amendment In the 3rd Amendment homeowners donâ€™t have to put of soldiers in their homes. No soldier shall, in time of peace be quartered neither in any house, without the consent of the owner, nor in time of war, but in a manner to be prescribed
asked by Laruen 
accounting
What items appear in financial statements of merchandising companies that do not appear in the financial statements of service companies? Why is there a difference?
asked by Mar 
chemistry
The decomposition of potassium chlorate, KClO3, gives oxygen gas and solid potassium chloride. How many grams of KClO3 are needed to produce 5.00 L of Oxygen gas at STP? Suppose that the reaction described above produces 4.80 L of O2 in the laboratory.
asked by Emily 
Physics
A stream moving with a speed of 0.5 m/s reaches a point where the crosssectional area of the stream decreases to onefourth of the original area. What is the water speed in this narrowed portion of the stream?
asked by Zion 
Chemistry
I need help ASAP! Colligative Properties Ethylene glycol (C2H6O2) is the principal ingredient in antifreeze. How many grams of ethylene glycol will be needed to lower the freezing point of 2100 grams of water by 20 degrees celcius?
asked by Kelsey 
accounting
Discuss the ethics of what Amy is doing. Are there any consequences to her actions? How does the store account for Amy’s returns?
asked by Mar 
english 2
What is the correct way to write this sentence? Also with it being on the internet people will be able to buy it immediately instead of having to wait.
asked by Anonymous 
Math 8th Grade
The chart below shows an expression evaluated for four different values of x x: x2+x+5: 1 7 2 11 6 47 7 61 Josiah concluded that for all positive values of x, x2+x+5 produces a prime number. Which value of x serves as a counterexample to prove Josiah’s
asked by Lana Von Monroe 
chemistry
Is calcium oxalate, CaC2O4, soluble in water?
asked by slim 
Chemistry
I did a chem lab and now im not sure if im doing my calculations right .. Please help? So i have to find out what ƒÉ will equal when i use the equation ƒÉ=d*(a/ãa^2+b^2) in my experiment i found out that a equals 108 cm, d and b were given to me ..
asked by Cindy 
Chemistry
I did a chem lab and now im not sure if im doing my calculations right .. Please help? So i have to find out what ƒÉ will equal when i use the equation ƒÉ=d*(a/ãa^2+b^2) in my experiment i found out that a equals 108 cm, d and b were given to me ..
asked by Cindy 
math
two billion,six hundred million in expanded notation using powers of 10 (2x 10^11) + (6x10^8) would that be correct??
asked by jill 
physics
A sound wave with intensity 37 mW/m2 interferes constructively with a sound wave that has an intensity of 18 mW/m2. What is the intensity of the superposition of the two?
asked by opp 
math
Sharon brought 12 apples to the picnic. After the picnic, 2 apples were left. What fraction of the apples were eaten.
asked by Sue 
Physics Please help
A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water.
asked by Akbar 
physics
How many grams of KOH are required to neutralized 300ml of 5.0 N HN03 solution? final answer nyan 84 grams kailangan nalang namen ng solution
asked by jhon earl 
physics
n a doubleslit experiment, two different wavelengths of monochromatic light are used, one wavelength is known and the other is unknown. When the known wavelength (480 nm) is projected through the slits the thirdorder maximum is located 12 mm from the
asked by lar 
Chemistry
Ammonia (NH3) boils at 33oC; at this temperature it has a density of 0.81 g/cm3. The enthalpy of formation of NH3(g) is 46.2kj/mol, and the enthalpy of vaporization of NH3(l) is 23.2 kJ/mol. Calculate the enthalpy change when 1 L of liquid NH3 is burned
asked by Morgan