Questions Asked on
March 17, 2012

Physics
A block of mass 0.229 kg is placed on top of a light, vertical spring of force constant 4665 N/m and pushed downward so that the spring is compressed by 0.093 m. After the block is released from rest, it travels upward and then leaves the spring. To what
asked by beavis 
physics
A convex mirror in an amusement park has a radius of curvature of 3.00m. A man stands in front of the mirror so that his image is half as tall as his actual height. At what distance must the man focus his eyes in order to see his image? I calculated the
asked by Daniel 
Chemistry
The balanced net ionic equation for the neutralization reaction involving equal molar amounts of HNO3 and KOH is ________. Express your answer as a chemical equation. Identify all of the phases in your answer. I thought it was this: HNO3(aq)+KOH(aq)>
asked by Anonymous 
PreCal
Two airplanes take off from an airport at the same time. One travels on a heading of 45 at 420 mph and the other on a heading of 150 at 400 mph. After two hours, how far apart are the airplanes? A.650.66 miles B.1,160 miles C.1,301 miles
asked by Adrianna 
chemistry
what are the spectator in this equation Ba(aq)+2I(aq)+2Na(aq)+SO4(aq)=BaSO4(s)+2I(aq)+2Na(aq) Isn't it 2I(aq) and the Na(aq)?
asked by diane 
mathsprobability
The diagram shows a spinner with six numbered sections.(where it has number 2 twice, # 1 triple & # 6 once ) Some of the sections are shaded. Each time the spinner is spun it stops on one of the six sections. It is equally likely that it stops on any one
asked by pooja 
Finance
Spam Corp. is financed entirely by common stock and has a beta of 1.0. The firm is expected to generate a level, perpetual stream of earnings and dividends. The stock has a priceearnings ratio of 8 and a cost of equity of 12.5%. The company's stock is
asked by Samantha 
statistics
The Acme Car Company claims that at most 8% of its new cars have a manufacturing defect. A quality control inspector randomly selects 300 new cars and finds that 33 have a defect. Should she reject the 8% claim? Assume that the significance level is 0.05.
asked by vikram 
Chemistry, please help!
The average human body contains 6.20 L of blood with a concentration of 2.40×10−5 M . If a person ingests 8.00 mL of 13.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion? According to the equation: Fe2+ + 6CN
asked by Mason 
Physics
In 1980, over San Francisco Bay, a large yoyo was released from a crane. Suppose the yoyo was 153 kg, and it consisted of two uniform disks of radius 35.4 cm connected by an axle of radius 3.19 cm. What was the magnitude of the acceleration of the yoyo
asked by M 
Physics
A submerged scuba diver looks up towards the calm water of a lake and notes that the Sun appears to be 20 from the vertical. The diver's friend, standing on the shore of the lake, is also looking at the Sun. At what angle from the vertical does the diver's
asked by Barry 
Physics
A large fish tank is filled with water (of refractive index 1.33). One side of the tank is made of a parallelsided piece of glass. A ray of light strikes the glass from the outside at an angle of incidence of 48. Estimate the angle through which this ray
asked by Barry 
Chemistry
Exactly 100 mL of 0.14 M nitrous acid (HNO2) are titrated with a 0.14 M NaOH solution. Calculate the pH for the following. (a) the initial solution (b) the point at which 80 mL of the base has been added (c) the equivalence point (d) the point at which 105
asked by Tanya 
chemistry
Which of the following is not amphiprotic? a)H2O c)NH4+ e)all choices are amphiprotic b)HSO4 – d)H2PO4– need help!
asked by bob 
algebra
a rectangular pool has an area of 880ft. the lenght is 10 feet longer than thw width. find the dimensions of the pool. solve by completing the square. round answer to the nearest tenth of a foot.
asked by Anonymous 
chemistry
If a bottle of nail polish remover contains 176 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788g/ml
asked by Anonymous 
statistics
Times for a surgical procedure are normally distributed. Method A has a mean of 28 minutes and a standard deviation of 2 minutes for completion. What is the probability that a surgical procedure conducted by method A takes at most 33 minutes to complete?
asked by Matthew 
Physics
The pendulum bobs in the figure are made of soft clay so that they stick together after impact. The mass of bob B is 14 times that of bob A. Bob B is initially at rest. If bob A is released from a height h above its lowest point, what is the maximum height
asked by Angelina 
Chemistry
Reposted: Use Hess's law to calculate the enthalpy change for the reaction: 3C(s) + 3H2(g) yield C3H6(g) Given the following thermochemical equations: 2C3H6(g) + 9O2(g) yield 6CO2(g) + 6H2O(l) enthalpy change= 4116.0 kJ/mol C(s) + O2(g) yield CO2(g)
asked by Hailee 
PreCal
A pilot wishes to fly on course 290 with an air speed of 300 knots when the wind blows from 224 at 18 knots. Find the drift angle to the nearest hundredth of a degree. A.3.22° B.5.07° C.86.86° A river is flowing at the rate of 2.4 miles an hour when a
asked by Adrianna 
DrBob222 PLEASE HELP!
I posted this question already but you never replied back :( Consider the following reaction at 298 K: C(graphite) +2Cl2 (g) > CCl4(l) Calculate the following quantities. Delta H: 139 kJ/mol deltaS(sys)=? J/mol*K deltaS(surr)=? J/mol*K deltaS(univ)=?
asked by Leila 
Chemistry
I am working on a redox stoichiometry lab. I need to calculate the moles NaBO3*4H2O. Mass=1.0133g in 100mL solution In my experiment I used 9.98mL and titrated in with KMnO4. I'm really confused about how to calculate the moles. Thanks for any help!!!!
asked by Sheena 
trig
In a computer simulation, a satellite orbits around Earth at a distance from the Earth's surface of 2.1 X 104 miles. The orbit is circular, and one revolution around Earth takes 10.5 days. Assuming the radius of the Earth is 3960 miles, find the linear
asked by John 
Pysics
Planet X has the same mass as earth, but its radius is only half as big. How does the gravity on this planet compare with the gravity on our planet earth?
asked by Stephanie 
Physics
Laser light with a wavelength = 665 illuminates a pair of slits at normal incidence. What slit separation will produce firstorder maxima (i.e. m=1) at angles of 8 from the incident (or straight through) direction? Remember, 1 nm = m. Express your answer
asked by Barry 
Physics
A diver jumps off a 10m diving board with an initial upward velocity of 5.0 m/s. What is the diver's velocity after 1.5 seconds?
asked by Anthony 
chemistry
Which salt below will dissolve in water to yield an acidic solution? a) NaNO2 b) K C§¤O4 c) NH4NO3 d) Na2CO3 e) Mg Br2 help!
asked by bob 
algebra
The price of a pair of shoes is $63.20. The sales tax rate is 4.5 percent. How much sales tax would you pay if you bought these shoes?
asked by lol 
Physics
A house painter stands 3 m above the ground on a 5.3mlong ladder that leans against the wall at a point 4.7 m above the ground. The painter weighs 638 N and the ladder weighs 143 N. Assuming no friction between the house and the upper end of the ladder,
asked by Keith 
AP Chemistry
18.0 ml of 0.122 M diprotic acid was titrated with 0.1017 M NaOH. The acid ionization constants for the acid are Ka1 = 5.2*10^5 and ka2 = 3.4*10^10. At what added volume of base does the first equivalence point occur?
asked by Nymei 
physics
A turntable must spin at 33.7 rpm (3.53 rad/s) to play an oldfashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 1.5 revolutions, starting from rest? The turntable is a uniform disk of
asked by Keith 
Admps
365 people watched a show on monday,78 more people watched the show on tuesday.105 more people watched the show on tuesday than on wednesday.How many people watched the show on wednesday
asked by Nantha 
chemistry
The ion HPO4–2 has both a conjugate base as well as a conjugate acid. The conjugate base of this ion is (1) while the conjugate acid is (2). a) (1) = H2PO4– (2) H3PO4 b) (1) = PO4– (2) H2PO4+ c) (1) = PO4–3 (2) H2PO4– d) (1) = HPO5–3 (2)
asked by bob 
chemistry
Why is a measured amount of water needed to determine the specific heat of a metal object?
asked by Doreen 
physics
You are asked to hang a uniform beam and sign using a cable that has a breaking strength of 372 N. The store owner desires that it hang out over the sidewalk as shown. The sign has a weight of 248 N and the beam's weight is 49 N. The beam's length is 1.30
asked by Keith 
precalc
Find an angle between 0 and 2ð that is coterminal with the given angle. 8pi/3 A sector of a circle has a central angle of 60°. Find the area of the sector if the radius of the circle is 3 mi.
asked by John 
chem 101
A hydrocarbon gas contains 92.26% carbon and 7.74% hydrogen, by mass. At one atmosphere pressure and 25°C, 4.20 L of the gas has a mass of 4.47 g. What is the molecular formula for the compound?
asked by harley 
Finace
Bond valuation Callaghan Motors’ bonds have 10 years remaining to maturity. Interest is paid annually; they have a $1,000 par value; the coupon interest rate is 8 percent; and the yield to maturity is 9 percent. What is the bond’s current market price
asked by Sharon 
Physics
A prism, made of glass of refractive index 1.50, has two plane faces at an angle 33 to each other. A ray of light enters the glass from one side perpendicular to that face and emerges through the other. Part A: As the ray enters the glass, what is its
asked by Barry 
Math
factor this trinomial: 12x^2  11x + 2
asked by Polina 
chem 101
A 0.6753 g sample of an unknown metal was converted to the nitrate, MCl2, then a solution of the nitrate was treated with silver nitrate to give MCl2 (aq) + 2 AgNO3 → M(NO3)2 + 2 AgCl(s) silver chloride crystals. The silver chloride was isolated and
asked by harley 
phy3
A 0.01kg baseball traveling in a horizontal direction with a speed of 11 m/!@#$%^&s a bat and is popped straight up with a speed of 15 m/s. (a) What is the change in momentum (magnitude and direction) of the baseball?
asked by opp 
Math
Right triangle ABC is similar to triangle XYZ. If the length of side AB is 30 inches, the length of side BC is 60 inches, and the length of side YZ is 10 inches, what is the length of side XY? A.4 B.7 C.6 D.none of above
asked by Vanessa 
Sta
It is pretty common across most schools to find the grades at the MBA level divided between A’s and B’s. As such, you expect the mean GPA to be around 3.50. Using the sample of 200 MBA students, conduct a onesample hypothesis test to determine if the
asked by Mark 
Pyhsics
The force of repulsion that two like charges exert on each other is 3.0 N. What will the force be if the distance between the charges is increased to 3 times its original value?
asked by Cookie 
world history
For the period 15001830, compare Nirth American racial ideologies and their effects on society with Latin American/Caribbean racial ideologies and their effects on society Help to make an outline
asked by Kole 
Chemistry
Which of the following statements are incorrect? 1) Gases are not included in the equilibrium constant expression. 2) Equilibrium constant can be increased by adding a catalyst 3) Large equilibrium constant favors reactants 4) Equilibrium is typically
asked by David 
chemistry
Which of the following is a BronstedLowry base but not a Lewis base? a) H2O c) CN– e) all choices are both a B/L and Lewis base. b) CO3–2 d) NH3 need help deciding
asked by bob 
chemistry
If HClO2 is a stronger acid than HF, which is stronger than HOCl, then the order of strengths of the conjugate bases of these acids is ______ < _____ < _____ a) ClO < F < ClO2 b) ClO2 < ClO < F e) F < ClO2 < ClO c) ClO < ClO2 < F d) ClO2 < F
asked by bob 
physics
A sphere has a radius of 0.20 meters and has a uniform surface charge density equal to 6.3 micro coulombs per meter squared. A second point charge has a magnitude of 0.58 micro coulombs and is 0.61 meters away from the center of the sphere. Find the
asked by doug 
physics
When you bungee jump,you are falling under free fall untill you reach the end of the elastic rope bungee jump organisers must use the weight of a jumper to calculate the length of elastic to use.why is this calculatoin important?
asked by Anonymous 
Biology
What is the role of promoter in lac operon?
asked by John 
algebra
Choose the equation that best represents an ellipse for the given foci and covertices. foci (+or 3,0) covertices (o, + or 6)
asked by bree 
English
Writeacher, I really need you to check these sentences and tell me which are possible. Thank you. 1) I really hope we can start our students' email exchange next week. 2) Can you possibly write a short presentation of your school (age range of your
asked by Matthew 
Chemistry
The equilibrium constant Kp for the following reaction is 4 atm^2 at 300 K. AB(s) = A(g) + B(g) What is the equilibrium pressure of A(g) and B(g) above AB(s) at 300K? What is Kc at 300K? How would i solve this when they don't even give me any partial
asked by David 
Chemistry
For the following reaction, the equilibrium constant Kc = 97.0 at 900K. If the initial concentrations of NH3 and H2S are both 0.20 M, what is the equilibrium concentration of H2S? H2S(g) + NH3(g) = NH4HS(s) Would you have to create an ICE chart for this
asked by David 
ratio
at a playground, the ratio of boys to girls was 5:6. if 2 over 5 of the boys and 1 over 2 of the girls left, there were 54 children in the playground. how many boys were at the playground at first?
asked by Anonymous 
Math
Solve for x: logx(121/64)= 2
asked by Tammy 
chemistry
prepare n/10 solution of oxylic acid .find out the strength in normality of the given potassium permagnet solution with the help of prepared solution of oxylic acid?
asked by mrinal 
physical sciences
An air plane with
asked by badi 
history
Hello! I need help regarding this statement of modernization and the industrial revolution: Technology is a product of liberalism and capitalism. Is this statement okay? I'm trying to connect technology with the ideologies of the west.
asked by Art 
trig
when sin theta+cos theta=square root of 2,find the solution of sin^3 theta+cos^3 theta
asked by joan 
physics
if I know that a astronaut weighs 860n on a unknown planet how do i determine the gravity?
asked by Leslie 
Physics
If a lever is 6 feet long and the fulcrum is six inches from a 500 N boulder, how many newtons of force would be needed to life the boulder?
asked by Alex 
Geometry
What geometric figure does a regular polygon begin to resemble as the number of sides increases? How come the answer is a circle?
asked by Anonymous 
Math 209
Predicting Home Prices Selling prices of homes can depend on several factors such as size and age. The accompanying table shows the selling price for three homes. In this table, price P is given in thousands of dollars, age A in years, and home size S in
asked by Lulu 
physics
A spinning flywheel has rotational inertia I = 401.9 kg · m2. Its angular velocity decreases from 20.5 rad/s to zero in 257.1 s due to friction. What is the frictional torque acting?
asked by Keith 
american goverment
the constitution was ratified by?
asked by Anonymous 
chemistry
determine ca2+ and mg2+ ion present in per litres of drinking water quantitively using EDTA method?
asked by mrinal 
algebra
the fax corporation bought a fax machine for $700. the fax machine depreciates at a rate of $25 a month A) Find a function F that can be used to determine the value of the fax machine t months after purchase. complete the model below. F(t)=
asked by kim 
algebra
a triangle have lengths that are consecutive whole numbers and its perimeter is greater than 2008 cm.If the least possible perimeter of the triangle is x cm, find the value of x.
asked by Anonymous 
Maths
Solve for x: 2(27)^x=9^(x+1)
asked by Reina 
English
requirements name the root morpheme:quire # of bound morphemes: 3 list derivational morphemes: re, ment list inflectional morphemes: s Is this correct?
asked by Matt 
Chemistry
I'm having a problem with a simple conversion question! "What is the molarity of 30.0 g of NH3 in 70.0 g of water? The desnity of the solution is 0.982 g/mL, and the molecular weight of ammonia is 17.0 g/mol" 1.76 mol NH3 Vsolution = mass/density V=
asked by Katherine 
Physics Please help!
In each of the following cases, the mass is 7.99 kg and the radius is 7.50 cm. (a) What is the moment of inertia (kg/m2 ) of a solid cylinder rotating about an axis parallel to the symmetry axis but passing through the edge of the cylinder? (b) What is the
asked by john 
Algebra
Write a slopeintercept equation of the line whose graph is desrcibed,parallel to the graph of 3x+2y=5;yintercept(0,1)
asked by sherry 
Algebra
Given the linear equation y=4/3x+1,find the ycoordinates of the points (6),(3) and (6).Show work.Plot these points and graph linear equation.
asked by sherry 
Algebra
Solve.Show work. 9y12(23y)=252(y+6)
asked by sherry 
Algebra 2
x^2/x^2+3x10  1/x^2+8x+15 Simplify Leave in factored form and put () around polynomials
asked by Nancy 
grammar help
Hi, Please help me fix grammatical and any other mistakes in my writing. #1 So the story begin when a small aerobic prokaryote came in a large prokaryote the large prokaryote ingests it and it turns to a mitochondrion , then a small photosynthetic
asked by zee 
Physics
A 50g ball collides elastically with a 290g ball that is at rest. If the 50g ball was traveling in the positive xdirection at 4.75 m/s before the collision, what are the velocities of the two balls after the collision? 290g ball: magnitude m/s ? 50g
asked by Angelina 
phys2
A 60kg astronaut is in space, far from any objects that would exert a significant gravitational force on him. He would like to move toward his spaceship, but his jet pack is not functioning. He throws a 720g socket wrench with a velocity of 5 m/s in a
asked by opp 
phys3
A projectile of mass 2.0 kg approaches a stationary target body at 4.9 m/s. The projectile is deflected through an angle of 59.8° and its speed after the collision is 2.8 m/s. What is the magnitude of the momentum of the target body after the collision?
asked by opp 
trig
solve for theta 6. tan theta=1 7. sin(theta/2)=1/2 thank you for your help!
asked by BreAnne 
English
I left out a few sentences. Thank you. I would like you to tell me the ones which are not possible.Thank you 1) I don't manage to get around to thanking you. Correctio: I can't get around to.. 2) She brought up three children by herself/on her own. She
asked by Matthew 
statistics
The mean life of a set of batteries in a T83 calculator is 525 with a standard deviation of 35 hours assume normal distribution is normal whats is the probability that set will last for more the 540 hrs
asked by mike 
math
Josephs tricycle tire has a diameter of 7 inches about how does Joseph travel each time his wheel goes around 5 times
asked by Crystal 
chemistry
The approximate pH of a 3.0 x 103 M solution of the strong acid H2SO4 is a) 3.5 b) 3.0 c) 2.5 d) 2.2 e) 3.0 how do you do this?
asked by bob 
Math
Mrs. Doris' kindergarten class is making Valentines day cards for the parents of the children. The class will be using three colors of construction paper: Pink, Red, and Purple. Mrs. Doris needs to find out the cost of the project so she can shop for the
asked by Jane 
MAT/116
add the following:  1 + (  6)
asked by Beck 
kctcs/somerset
Find the angle of refraction for light that is incident on a water surface from air when the angle of incident is 40 degrees
asked by summerly 
hum120
has the aborginal culture still live and has the western culture change
asked by shawki 
business law
Jud Wheeler signed a contract to purchase 10 acres of land in Idaho from the Krauses. If Jud offered the Krauses considerably less for their property than its possible market value and the Krauses accepted the offer, could they avoid the contract on later
asked by Lola 
English
Doing an assignment on act 4 scene 12 of Romeo and Juliet's symbols I have to use these symbols and find an object for each one that reflects it it needs evidence too Here are the symbols and thanks for all your help Love Foolishness of the feud Extremes
asked by Haley 
Algebra
Given the linear equation y=4/3x+1,find the ycoordinates of the points (6),(3) and (6).Show work.Plot these points and graph linear equation.
asked by sherry 
Business
Is it possible for companies both to maximize financial value for shareholders and to act responsibly in the communities in which they operate, to treat their employees, customers, and suppliers well, and to engage in activities that are good for the
asked by Dusty 
social studies
what argument did johnson give for vetoing the civil rights bill of 1866
asked by Peaches 
chemistry
5. How many moles of magnesium were consumed in the reaction? Open the Data window and click on the flask to provide evidence that this answer is correct. 6. Could this experiment be performed in the smaller 50 mL Erlenmeyer flask?
asked by Dee 
math slope
write in slopeintercept form. Identify the slope, m, and the yintercept, b. 12x + 6y = 18
asked by Anonymous 
Math
Can someone help me please 52x is greater than or equal 7 I get x can be greater than or equal to 1 Or x can be less than or equal to 6 And to graph i puta closed dot on 1 and 6 but it keeps saying im wrong i don't understand how im wrong, can someone
asked by Amy 
chemistry
If you have 4.90 moles of Ba, how many liters of N2 would you have at STP?
asked by Tom 
UCI
Did UC Irvine stop sending acceptances for 2012? If not, when is the last day? Also when do they send rejection letters? Thanks ^.^
asked by Dave 
math
A car manufacturer has 96 cars to paint. Each batch of paint can paint 12 cars. Which equation can be used to find b, how many batches of paint the manufacturer needs to paint all the cars? f) b/12 = 96 g) b/96 = 12 h) 12/b = 96 i) 96/b = 12
asked by Mia 
MATH
A customer has a balance of $1,350. Interest is paid at the end of 12 months. Assuming the balance remains at $1,350 for all 12 months, how much interest will be earned after 12 months if the interest rate on the account is 5.5%?
asked by RUBY 
math
simplify the expression 10x20/5
asked by forgetful 
Math
Factor the following trinomial: 12x^2  11x + 2 Please help I have no idea how to do this!
asked by Anonymous 
Calculus
In the following question, k=5.8 Let f(x)= {x sin (k/x) x ~= 0, {L x = 0. For the given value k, find the value of L so that f(x) is continuous at 0. Many thanks!!
asked by Anonymous 
Math
The value of k that makes f continuous for f(x) = {(5*sin(x))/x, x0 is k = ?
asked by Anonymous 
chemistry
What weight of potassium chlorate is required to prepare 89.6mL of oxygen measured over water at 21.0 degrees C and 743 millimeters of mercury?
asked by Courtney 
physical
An object is thrown upward at a certain angle above the ground, eventually returning to erth.1.Is there any place along the trajectory where the velocity and acceleration are perpendicular? If so, where? 2. Is there any place where the velocity and
asked by badi 
math
There are 9 tennis balls in a box, of which only 5 have not previously been used. Four of the balls are randomly chosen from the box. Let ⇠ be the number of new balls among the selected ones. (b) Evaluate the expectation E
asked by neeks 
Math
x(x+4)^(2/3) a). Find the second derivative b). Find any points of Inflection c). Determine the intervals of Concavity
asked by Sam 
history
So I'm doing a paper regarding the industrial revolution and the working class.. I need your opinion with regards to the idea that the working class is an important agent of change.. During the industrial revolution, why do you think the proletariat was an
asked by jamie 
chemistry
how does the number of electron pairs around a central atom determines its shape
asked by Doreen 
Algebra 2
what is turning point? also relative min and max of it?? thank you!
asked by Anonymous 
Physics
Would it have been possible to make DNA a binary code?
asked by John 
reading
In the book, "The face on the milk carton", what color is Janie's shirt?
asked by Alexander 
Algebra
Find slope,if the line is defined state this. (0,2)(4,3)(5,7)(2,5)(4,6)
asked by sherry 
Algebra
Write a slopeintercept equation of the line whose graph is desrcibed,parallel to the graph of 3x+2y=5;yintercept(0,1)
asked by sherry 
Algebra
Write the slope intercept equation for the line with the given slope that contains the given points....M= 3/4;(0,5)
asked by sherry 
Algebra
Write the slope intercept equation for the line with the given slope that contains the given points....M= 3/4;(0,5)
asked by sherry 
Algebra
Find the slope and yintercept of the line given..y=5/6x14
asked by sherry 
Algebra
Find the x and y intercepts and graph the equation plotting the intercepts.Show work...5x+8y=40
asked by sherry 
gas laws chemistry
A neon sign is made of glass tubing with an inside diameter of 12.7 mm and length of 16.0 m. If the sign contains neon at a pressure of 7.56 torr at 33°C, how much neon is in the sign?
asked by harley 
math
A rectangular lot is surrounded by a rock wall 46 meters in length. What are the dimensions of the lot if its length is 5 meters longer than its width
asked by Kassie 
Algebra
Write the slope intercept equation for the line with the slope1/4 and yintercept(0,2) and graph the line.Show work.
asked by sherry 
Business
Imagine you are the owner of a growing technology or service company with a healthy cash flow but little in the way of property and equipment. Develop a strategy for meeting your shortterm financing needs to acquire needed property and equipment.
asked by Dusty 
college algebra
what is the domain and range of f(x)=5^x +5
asked by jim 
physics
You have a 15.0 kg block of wood and you drop it from rest at a great height. It reaches terminal velocity of 31.3 m/s. If this is lowspeed drag, what is the value of the constant b? If this is a highspeed drag, what is the value of the constant c?
asked by jane 
Algebra
evaluate the function f(r)= sqrt25r6 at the given values of independent variables f(16), f(x), f(252x) and simplify
asked by Melanie 
chemistry
The Ka for HOBr is 2.4 x 109. Thus, you can report the pKb for OBr– as a) 4.2 x 106 b) 9.62 c) 5.38 d) 8.62 e) 1.38 help!
asked by bob 
English
Could you please check these other sentences? They are the last on the same topics. Thank you. 1)You can't get around it: you must tell him the truth. 2) You can't get out of it: you must tell him the truth. My dad took a day off to take me to the sea (Or
asked by Matthew 
math
Which of the following shows the next step using the least common denominator to simplify 7/85/6?
asked by coco 
Calculus & Vectors
Could someone explain this question to me? I attempted the question and here is why I chose the answer below. Thank you!  1. If A ⃗ is a vector representing 50 km/h northeast, what is 3/5 A ⃗? a) 30 km/h southwest
asked by Melinda 
Finances
Hoe do you do time series regression?
asked by Angela 
business
A music producing firm holds the copyright over several songs which have just been recorded by a popular singer. Based on market research conducted by a consulting agency, the producer expects to sell 50,000 CDs for $20 each. The accountant of the firm is
asked by Zunish 
Chemistry
Explain why the absolute values of the standard enthalpy change in the reaction and heat measured by the calorimeter are not equal. Assume that there are no measurement errors of any kind. In the previous problem I solved that Delta H rxn was 1500 and q =
asked by David 
English
Writeacher, I need you to check these things I need to include in an email. Thank you. 1) He has just received your principal's email and he is very pleased our schools will be working together on the accomplishments of various didactic (??) projects. I'm
asked by Matthew 
french
How do i write this in French with all correct conjugations? if someone could rewrite this in French with all the proper tences and such i would greatly appreciate it My New York vacation. During the Christmas holiday, me and my family went on a trip to
asked by Needhelp 
history
what was vimy ridge
asked by ted 
physical
An object is thrown upward at a certain angle above the ground, eventually returning to erth.1.Is there any place along the trajectory where the velocity and acceleration are perpendicular? If so, where? 2. Is there any place where the velocity and
asked by badi 
Physics
(.50 kg )(35.7m/s^2) = ? kilograms meters per second squared
asked by Don 
math
The probability that a prime number occurs on at least 2 tosses when a balanced dice is tossed 5 times independently is equal to
asked by amit 
history
Hello! I need help regarding this statement of modernization and the industrial revolution: Technology is a product of liberalism and capitalism. Is this statement okay? I'm trying to connect technology with the ideologies of the west.
asked by Art 
math
if a boy is 4 years less than twice his sisters age and the sum of the age is 11 how old is he
asked by were here