Questions Asked on
October 20, 2012

Physics
A 1.00kg ball and a 2.00kg ball are connected by a 4.63m long rigid, massless rod. The rod is rotating clockwise about its center of mass at 33.0rpm. What torque will bring the balls to a halt in 4.07s? My Attempt: Center of Mass = [(1kg)(0m) +
asked by Syed 
geometry
find the similarity ratio of a cube with volume 729 m^3 to a cube with volume 3,375 m^3?
asked by Anonymous 
AP Chemistry
Consider the following reaction. CaSO4(s) Ca2+(aq) + SO42(aq) At 25°C the equilibrium constant is Kc = 2.4 105 for this reaction. (a) If excess CaSO4(s) is mixed with water at 25°C to produce a saturated solution of CaSO4, what are the equilibrium
asked by Olivia 
Physics
The cheetah is one of the fastestaccelerating animals, because it can go from rest to 18.2 m/s (about 41 mi/h) in 2.7 s. If its mass is 114 kg, determine the average power developed by the cheetah during the acceleration phase of its motion. Express your
asked by Elizabeth 
Chemistry
If the standard enthalpy of combustion of octane, C8H18(l) is 5471 kJ/mol, calculate the enthalpy change when 1.00 kg of octane are burned. the molar mass of octane is 114 g/mol
asked by Sam 
College Physics
A uniform horizontal rod of mass M and length l rotates with angular velocity w (omega) about a vertical axis through its center. Attached to each end of the rod is a small mass m. Determine the angular momentum of the system about the axis. Write you're
asked by Daniel 
chemistry
A very flexible heliumfilled balloon is released from the ground into the air at 20 degree C. The initial volume of the balloon is 5.00 L, and the pressure is 760 mmHg. The balloon ascends to an altitude of 20km, where the pressure is 76.0 mmHg and the
asked by Liang 
Trigonometry
The average temperature, in °F, for Atlanta, GA is modeled by the sinusoidal function y = 18.25 sin(pi/6 t  2.09) + 61.15 where t is the time in months and January is t=1. What is the average Temperature for the month of February? Using the same
asked by Hannah 
Physics
Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average power per kilogram generated by seventimewinner Lance Armstrong (m = 75.0 kg) is 6.50 W per kilogram of his body mass. (a) How much work does he do
asked by Elizabeth 
math
the product of a 1 digit number and a 2digit number number is 284 what is the answer
asked by brittany 
Stats
Cans of regular Coke are labeled as containing 12. Statistics students weighted the content of 10 randomly chosen cans, and found the mean weight to be 12.1. Assume that cans of Coke are filled so that the actual amounts are normally distributed with a
asked by S 
chemistry
Consider 4.50L of a gas at 365 mmHg and 20 degree C . If the container is compressed to 2.70 L and the temperature is increased to 33 degree C , what is the new pressure, P2, inside the container? Assume no change in the amount of gas inside the cylinder.
asked by anonymous 78 
statistics
Suppose you wanted to test your ESP using an ordinary deck of 52 cards, which has 26 black and 26 red cards. You have a friend shuffle the deck and draw cards at random, replacing the card and reshuffling after each guess. You attempt to guess the color of
asked by Sydney 
MANAGERIAL ECONOMICS
In attempt to increase revenue and profits, a firm is considering a 4 percent increase in price and an 11 percent increase in advertising. If the price elasticity of demand is 1.5 and the advertising elasticity of demand is +0.6 would you expect an
asked by delaina 
maths
the 1st term of an ap is twice the common difference find in terms of the 5th term of the ap
asked by d 1st term of an ap is twice the common difference find in terms of the 5th term of the a 
algebra
You live near a bridge that goes over a river. The underside of the bridge is an arch that can be modeled with the function y=0.000475x^2+0.851x, where x and y are in feet. How high above the river is the bridge(the top of the arch)? How long is the
asked by LEE 
Discrete Mathematics
Find x in the following expressions: 1. (111)10 = (x)3; 2. (111)3 = (x)10; 3. (2012)10 = (x)7; 4. (2012)7 = (x)10;
asked by Nisha 
Gen Chem
If the standard enthalpy of combustion of octane, C8H18(l) is 5471 kJ/mol, calculate the enthalpy change when 1.00 kg of octane are burned. the molar mass of octane is 114 g/mol
asked by Sam 
Math
A sample of n _ 11 scores has a mean of M _ 4. One person with a score of X _ 16 is added to the sample. What is the value for the new sample mean?
asked by Sharon 
social studys
1. Because there was a reawakening of interest in art, literature, and science between 1300 and 1600, it is fitting to call this period the Renaissance, since it means _____. (1 point)learning knowledge "out with the old" rebirth 2. During the Middle Ages,
asked by all about me 
Chemistry
For 2 SO2(g) + O2(g) 2 SO3(g), Kp = 3.0 104 at 700 K. In a 2.00L vessel the equilibrium mixture contains 1.58 g of SO3 and 0.136 g of O2. How many grams of SO2 are in the vessel?
asked by Claire 
I need help answering this Accounting question!?
While preparing the April 30th bank reconciliation for the checking account for Calvin Corporation, the accountant identified the following items: Calvin's balance according to the general ledger: $15,000 Outstanding checks: 2,500 Bank service charge: 15 A
asked by Anton 
I need help answering this Accounting question!?
Bluejay Corp. prepared a bank reconciliation as of July 31, 2009. The following items were identified: Bluejay's bank statement balance: $14,300 Deposit in transit: 1,000 Outstanding checks: 1,300 Bank service charges: 50 Customer's NSF check returned by
asked by Anton 
Calc
It is noon. A secret agent is driving a jeep through the desert in the tiny principality of Alta Loma. He is 32km from the nearest point on a straight, paved road. Down the road 16km is a power plant in which a band of international terrorists has placed a
asked by Alison 
College Algebra
An arrow is launched upward with a velocity of 54 feet per second from the top of a 75 foot building. What is the maximum height attained by the arrow in feet?
asked by Randi 
Chemistry
A mixture of C3H8 and C2H2 has a mass of 2.0g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
asked by Crystal 
chemistry
At 1 atm, how much energy is required to heat 49.0 g of H2O(s) at –12.0 °C to H2O(g) at 169.0 °C?
asked by yas 
Math
By using the expansion (1 + x)^2. Prove 8[sigma notation]k=0 2^(3K)(N K) = 3^(2n). Thanks
asked by Candice 
math
by selling 90 computer a shopkeeper gains the amount which is equal to the selling price of 10 computer find the profit percent ? had he purchased them for rupees 30000 each what would have been the selling price of a computer ??
asked by TUHITUHI 
physics
Bonnie and Clyde are sliding 500 bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 385 of force while Bonnie pulls forward on a rope with 300 of force.What is the safe's coefficient of
asked by Kris 
economics
1. Suppose that the market of laptops is given by following supply and demand curves given below: Qd = 5000 − 3p Qs = 1000 + p. Answer the following questions on excel sheet using the above demand and supply equations. i) Take the range of values for the
asked by Anonymous 
chem Help please!
A water heater is fueled by the combustion of propane as described by the following reaction: C3H8(g) + 5 O2(g) > 3 CO2(g) + 4 H2O(l) a) Determine how much heat is released if 11.2 moles of propane are burned at 298 K and at a constant pressure of 1.00
asked by Kjd 
Math
How much mulch will you need to cover a rectangular garden that is 20 feet by 30 feet with a 3 inch layer of mulch? Explain.
asked by Chelsea 
Abnormal Psychology
In comparison to children with autism, children with schizophrenia A. tend to be younger at diagnosis. B. show a more chronic and declining course. C. show similar social and language deficits. D. show less intellectual impairment.
asked by Anonymous 
english
In “First Confession”, the author adds to the interest of the story by using? European Idioms. common phrases. short, highlighted sentences. Irish dialect.
asked by Deb 
physics
all the following are true about water except that it: a has a very high specific heat capacity compared to ther substances. b. takes a long time to heat up. c. takes a short time to cool off. d. makes the earths climates milder.
asked by ray 
Math
The following chart shows the fraction of students who enjoy baseball, basketball, football, soccer, and swimming in the 7th grade. Baseball  2/3 Basketball 4/5 Football 3/10 Soccer5/6 Swimming1/8 What fraction of students enjoys basketball and
asked by Bethany 
statistics
I need help with p for a hypothesis test for normal distribution.
asked by carolyn 
Mathematics
a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given by x= 5 + 8sin2t + 6cos2t 1. Find the period and amplitude of the particle. 2. Find the greatest speed of the particle. Thanks
asked by Candice 
physcis
a flight attendant pulls her 70 kg flight bag in an airport terminal holding the handle 50 degrees above the horizontal. she pulls the bag a distance of 200 m while exerting a 40 n force acting along the handle with a constant speed how much work does the
asked by chad 
Discrete Mathematics
Find g := gcd(389,222) and a,b belongs to Z such that g = a.389 + b.222.
asked by Nisha 
i need help ss
1. Because there was a reawakening of interest in art, literature, and science between 1300 and 1600, it is fitting to call this period the Renaissance, since it means _____. (1 point)learning knowledge "out with the old" rebirth 2. During the Middle Ages,
asked by all about me 
Discrete Mathematics
Let m,n,z belong to N such that m and n divide z and gcd(m,n) = 1. Prove that m.n divides z.
asked by Nisha 
medical terminology
how to type a creative paragragh using medical abbreviations
asked by Zabrina 
Chemistry
Please show me how to work! Ethane, C2H6(g) can be made by reaction of hydrogen gas with acetylene, C2H2(g). the standard enthalpies of formation of ethane and acetylene are 84.68 and +226.73 kJ mol1, respectively. what is the reaction enthalpy for the
asked by Sam 
Chemistry
Please show me how to work! thanks When Snno2(s) is formed form the comustion of gray tin, the reaction enthalpy is 578.6 kJ, and when white tin is burned to form SnO2(s), the reaction enthalpy is 580.7 kJ. Calculate the reaction enthalpu for
asked by Sam 
Chemistry
Calculate the number fo moles of NaOH(aq) needed to react completely with 125 mL fo 6.00 M H2SO4(aq)
asked by Sam 
science
A positive charge of 3.50 µC is located in an electric field of intensity 3.00 N/C directed toward the south. Find the magnitude and the direction of the force on the test charge. (remember E = Fon q' / q', and 1 µC = 1.00 x 106 C) a. 8.6 x 105 toward
asked by john smith 
math
prove the inequality sin x + tan x > 2x for x ¸ (0, pi/2) i don't know what i must do with this equation, can someone explain this to me step by step? >.
asked by jul 
calculus
suppose that f(x) = x^3 x1 is differentiable at x=1 then a=?, b=?
asked by jul 
Math
A particle is projected horizontally with velocity V m/s, from a point h meters above ground. Taking g ms^2 as the acceleration due to gravity, 1. Show the equation of the path is given by y = (2hV^2  gx^2)/ 2V^2 2. Find the range of the particle. Thanks
asked by Candice 
Precalc/Trig
what angle does the line y=6/7x make on the xy plane with a positive x axis?
asked by Liz 
college alegebra
√3x2+√2x+5+1=0 Could this square root problem be solved by using a graphing TI84 Plus calculator? If so, will you please tell me how to do it. Thanks
asked by sandy 
Precalc/Trig
what angle does the line y=6/7x make on the xy plane with a positive x axis?
asked by Liz 
maths urgent please
the chord PQ joining the points P(2p, p^2) and Q(2q, q^2) on x^2 = 4ay always passes through the point A(2,0) when produced. show that (P+q) = pq thanks!
asked by Candice 
Geography
5 countries in Africa with coastlines on the Atlantic Ocean and lie between 20 degrees n and 10 degrees n? I think they are guinea,guineaBissau,Gambia,Senegal and Mauritania. Is this right?
asked by Alex 
Chemistry
How many mL of 0.200 M H3PO4(aq) must be added to 25.0 mL of 0.0888 M BaCl2(aq) to precipitate all the barium as barium phosphate?
asked by Sam 
PHI 103 Informal Logic
4. After being told that she is being punished for lying, a child responds by telling her mother that she also lied. This response may involve which fallacy? (Points : 1) Ad homimen (tu quoque) Ad verecundiam (ex libris) Ad misericordiam (ex ante) Ad
asked by Sam 
Math
What magnitude of earthquake would release energy equivalent to 35 trillion jules? I know the formula is: E= (2.5 X 10^4) X 10^1.5 X M
asked by Sam 
Chemistry
The standard enthalphies of formation of ozone, O3(g), and oxygen atoms are +142.70 and +249.17 kJ/mol. Calculate the reaction enthalpy for 2O2(g)>O3(g)+O(g)
asked by Sam 
geometry
The surface areas of two similar solids are 289 ft2 and 900 ft2. The volume of the larger solid is 1,755 ft3. What is the volume of the smaller solid?
asked by Anonymous 
Chemistry
When 10.0 g of ammonium nitrate (molar mass= 80 g/mol) are dissolved in 1.00 L of water in a bomb calorimeter with a heat capacity of 2.30 kJ/ K, the temp drops 1.52 K. What is the molar enthalpy of solution of ammonium nitrate?
asked by Sam 
Precalc/Trig
Find the smallest positive number t such that e^sin(t)=1/2
asked by Liz 
Chemistry
If the standard enthalpy of formation of PH3(g) is +5.4 kJ mol1, calculate the reaction enthalpy for 2PH3(g)>2P(s)+3H2(g)
asked by Sam 
calculus
Write h(x) = 6x^4  2x^2 + 1 as a composition of two functions f and g
asked by Jake 
math
3x squared x=4
asked by jr 
chemistry
How would you prepare 1000.0ml of 0.600M NaOH solution starting from concentration of 1.000M.
asked by Tasha 
Chemistry
the following acid—base neutralization reaction HNO3 (aq)+ KOH (aq) KNO3(aq) + H2O (I) What is the molarity (M) of an HNO3 solution if 50.0ml is needed to react with 25.0ml of 0.150M KOH solution?
asked by Tasha 
Chemistry
Based on the following chemical equation answer the question below show all your calculation The balanced chemical reaction of iodine with hydrogen sulfide h2s(g)+i2(s)2HI(g) + S(s) (a) Based on the above chemically balanced equation, how many grams
asked by Tasha 
Physics
Hello. I'm having difficulty with this question In the diagram, the coefficient of kinetic friction between the 2.00 kg and the 3.00 kg blocks is 0.300. The horizontal surface and the pulleys are frictionless, and the masses are released from rest. (a)
asked by Priya 
Calculus
does infinite power series 1/n diverge? (i think so, because it is just the negative of the harmonic series)...? thank you!
asked by Nikky 
Social
Can anyone tell me What are some ways to support diversity during middle adulthood.
asked by R.T. 
math
a fruit seller buys 100kg apple at the rate of rs 20 per /kg . He sold 40 kg at a loss of 7%.At what price should we sell the remaining apple to make a profit of 15% on the whole transaction ??
asked by TUHITUHI 
Calculus
I am maybe overthinking this, but what is the lim as n> infinity of (n+1)/(n+2) ? I am trying to use the ratio test to find interval of convergence for the infiinite series (n/n+1)((2x)^(n1)) so i did the limit of (n+1)/(n+2) but i am wondering if
asked by Luma 
MathAlgebraic Expressions and identities
Use suitable identity to get product: 1) (x3  3/8) (x3 + 1/4) 2) (p2 + 16) (p2  1/4) 3) (y  7) (y + 12) Thanks in anticipation.
asked by Shaija 
HEALTH
I have to do a project on the bacteria/micro called streptococcus and s the any website that would answer these following questions about it or aleast some? What Microbe? Where Can we See This Microbe? Good or Bad Microbe? Why? How Can We Prevent Disease
asked by HEALTH 
literacy
It's important to include references in your research paper because references A. reduce the risk of false conclusions. B. prove that you didn't conduct your research on the Internet. C. give credit to authors. D. are required on most writing assignments.
asked by Anonymous 
MATH
WHAT IS THE MEAN 210153420312
asked by NOAH 
Ethics and Cultural
What are some of the ways people identify groups?
asked by Karen 
calculus (vectors)
Determine a vector that is orthogonal to the vector e = [3, 1, 4]
asked by KnowsNothing 
MATH
HOW TO FACTOR 20X^2+23X21 STEP BY STEP
asked by Anonymous 
maths
binary operation m.n=m2+n is associative or commutative?
asked by JENNY 
Mathsalgebraic expression
Using suitable identities evaluate (z14)(z1) Please help. thanks
asked by Ben 
Social studies
how does geography affect the development of a civilization?
asked by Matt 
Physics
Block 1 is up an incline and is attacthed to block 2 by a rope, with m2 = 5.0 kg and è = 33°.If the coefficient of static friction between block #1 and the inclined plane is ìS = 0.24, what is the largest mass m1 for which the blocks will remain at
asked by Anne 
algebra
what is the vertex form of the equation y=x^2+4x3 Could someone please explain.
asked by LEE 
geometry
The volumes of two similar figures are given. The surface area of the smaller figure is given. Find the surface area of the larger figure. V = 5 in3 V = 40 in3 S.A. = 4 in2
asked by Anonymous 
geometry
The volumes of two spheres are 729 in3 and 27 in3
asked by Anonymous 
geometry
01:34:47 The volumes of two spheres are 729 in3 and 27 in3. What is the ratio of their radii, rounded to the nearest whole number?
asked by Anonymous 
statistics
Suppose a shipment of 500 machine parts contains 62 defective and 438 nondefective machine parts. From the shipment you take a random sample of 25. You are interested in the number of defective machine parts out of 25 trials and corresponding
asked by Brenda 
Physics
A block slides down an inclined plane that makes an angle of 23° with the horizontal. There is friction between the block and the plane. If the acceleration of the block is 2.1 m/s2, find the coefficient of kinetic friction between the block and the
asked by Anne 
math
2a + 7b + 17c = 31 How do you work out what a,b and c are?? any help would be appriciated
asked by Kara 
Physics
A bullet is fired from a rifle with a speed v0 at an angle è with respect to the horizontal axis from a cliff that is a height h above the ground below. Calculate the speed of the bullet when it strikes the ground.
asked by Anne 
Physics
A baseball is hit with an initial speed of 42 m/s at an angle of 30° relative to the x (horizontal) axis.(a) Find the speed of the ball at t = 3.4 s. (b) What angle does make with the x axis at this moment? (c) While the ball is in the air, at what value
asked by Anne 
Physics
A soccer ball is kicked with an initial speed of 23 m/s at an angle of 20° with respect to the horizontal.(a) Find the maximum height reached by the ball. (b) Find the speed of the ball when it is at the highest point on its trajectory. (c) Where does the
asked by Anne 
Physics
Consider a swimmer who wants to swim directly across a river. If the speed of the current is 0.31 m/s and the swimmer's speed relative to the water is 0.57 m/s, how long will it take her to cross a river that is 13 m wide?
asked by Anne 
Physics
Block 1 sits on a table with rope that is attached to block 2 hanging over the edge where m1 = 43 kg and m2 = 11 kg. Assume that there is no friction between m1 and the table. Find the acceleration of the crates and the tension in the string
asked by Anne 
Physics
A car of mass 1396 kg is parked on a very slippery hillside.To keep it from sliding down the hill (è = 15°), the owner attaches a cable. What is the tension in the cable?Determine the components of all the forces on the car along the coordinate axes.
asked by Anne 
physics
two objects repel each other. can we be sure they are both electrically charged? how can we know which sign of charge? two objects attract each other. can we be sure both are electrically charged?
asked by aa 
physics
On a drive from your home to town, you wish to average 39.6 mph. The distance from your home to town is 108 miles. However, at 54 miles (half way), you find you have averaged only 29.7 mph. What average speed must you maintain in the remaining distance in
asked by Anonymous 
physics
to prevent dust and soot particles from polluting the atmosphere, industry often employs static electric charge in their smokestacks. explain the physics principle involved in this application
asked by sal 
government
In gov't what does ommittee reforms that have taken power away from chairs represent?
asked by dora 
Calculus
Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes,and points of inflection for y = x^4 + 2x^3  x + 2
asked by Sissy 
French
Je m'appelle Claire LeFèvre et j'habite en Californie. Mes parents travaillent dans une industrie privée à San Diego et j'aime habiter ici. Le temps est parfait. Il fait toujours beau temps! Ici, à San Diego, je peux parler français et espagnol parce
asked by Lilly 
Calculus
Sketch the graph of f(x)=x^2/x2. Identify the domain, xintercepts, y intercepts, symmetry, periodicity, asymptotes, increasing and decreasing intervals, local max/min, concavity, inflexion points.
asked by Anonymous 
physics
You and a friend each drive 63 km to the same destination. You travel at 88.7 km/h and your friend at 96 km/h. How long will your friend wait for you at the end of the trip? Answer in units of min
asked by Anonymous 
calculus!
Use differentials to approximate the maximum error propagated when calculating the volume of a sphere, if the radius is 5 + or  .01 meters
asked by Cassie 
math
christi rides her bicycle 7 blocks south. 3 blocks east, 5 blocks north, and 8 blocks west. how many blocks has she ridden when she crosses her own path
asked by john 
Calculus
Use Newton's Method to approximate the positive root of the function f(x) = (x^5)  20 Show each iteration until successive iterations agree to six decimal places.
asked by Suzy 
Calculus  HELP!
If 1200 square centimeters of material is available to make a box with a square base and open top, find the largest possible volume of the box.
asked by Suzy 
math
what is 67 in m overn form were m and n are integers
asked by destiny 
govt
what do they mean by highly specialized committee structure
asked by dora 
CALCULUS
A cone shaped paper drinking cup is to be made from a circular piece of paper of radius 3 inches by cutting out a sector of the circle and gluing the straight edges together. Find the angle of the cut that gives the cup with the largest capacity.
asked by Sissy 
Math (Trig)
In 1893, the city of Chicago put on a World's Fair to celebrate the 400th anniversary of Columbus' trip to the Americas. The most spectacular at this fair was a huge Ferris Week built by an engineer named George Ferris. This remarkable structure had a
asked by Ashley 
Calculus.......plz help! =)
Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes, and points of inflection for y = x(x+1)^3
asked by Amy 
math
4,195.43 1,408 625.00 + 239.00 i got 6,466.43 am i right
asked by sharon 
math
Cassandra has a square photo that has lengths of 4 inches. She cuts 5/8 inch off the top and 1/2 inch off the bottom. What is the new height of the photo?
asked by Ana 
chem need help
The most prominent line in the atomic spectrum of mercury occurs at a wavelength of 253.652 nm. What is the energy of 0.625 moles of photons associated with the most prominent line? Express answer in kJ. ANS: 295 kJ Please explain.. Thank you so much!
asked by Kjd 
physics
A 33.6kg crate rests on a horizontal floor, and a 64.7kg person is standing on the crate. Determine the magnitude of the normal force that (a) the floor exerts on the crate and (b) the crate exerts on the person.
asked by Anonymous 
Calculus
Suppose f and g are inverses, and (1,5) is a point on the graph of f. If f'(1) = 3, what, if anything, does that tell us about g'(1).
asked by Jan 
Algebra
3/4 ÷ x = 1/3 solve for x
asked by Kara 
Science (Human Anatomy)
THIS QUESTION IS WORTH 50 MARKS I NEED SOURCES AS WELL Give 2 different reasons why two muscles that act across the same side of the same joint are not necessarily redundant? Explain your reasons in detail and give at one real example that illustrates each
asked by jawed hakimi 
Science (Human Anatomy)
THIS QUESTION IS WORTH 50 MARKS I NEED SOURCES AS WELL Relate their structure of a neuron to the anatomy of the cerebral cortex and spinal cord Be sure to discuss the locations of soma, axons, dendrites, and supportive cells in each area.
asked by jawed hakimi 
Algebra
2x/3 + 1/4= x/6  1/2 solve for x
asked by Kara 
English
How does Dante feel about the journey he’s about to take with Virgil? worse than before he talked with Virgil better now that he’s talked with Virgil unsure excited
asked by Deb 
English
The speaker in the poem from Auden’s “The Ten Songs” is trying to flee from? police. Hitler. memories. floods.
asked by Deb 
math
minimize p= 15x +18y subject to x+2y= 36 x>=0 y>=0
asked by garnel 
math
machines A &B. Model A machines each cost $200 to make at a profit of $25 each. Model B cost $3oo to make at a $40 profit. Total number of machines do not exceed 2500 a month. Company has no more $600,000 per month for manufacturing cost. Whats the number
asked by garnel 
math
Suppose a computer virus begins by infecting 8 computers in the first hour it is released. Each hour after that, each newly infected computer causes 8 more computers to become infected. The function y = 8 (exponent x) models this situation. make a table
asked by ProudParent 
Abnormal Psychology
The most common underlying feature associated with reading disorders is A. associating new words with those in memory. B. visually processing the shapes of letters. C. interpreting the meaning of words. D. distinguishing or separating sounds in spoken
asked by Felicia 
Algebra
The length of a rectangular banner is 3 feet longer than its width. If the area is 70 square feet, find the dimensions.
asked by .... 
Chemistry
What effect would a sweaty person have on the pool chemistry? Would the reaction tend to be forced to the right or to the left? Any help is greatly appreciated!
asked by Corneil 
College Algebra
The halflife of a radioactive material is about 34.6 years. How much of a 1gram sample of the material is left after 30 years?
asked by Anonymous 
Physics
The model airplane in figure below is flying at a speed of 21 m/s on a horizontal circle of radius 18 m. The mass of the plane is 0.82 kg. The person holding the guideline pulls it in until the radius becomes 11 m. The plane speeds up, and the tension in
asked by Elizabeth 
Physics
A semitrailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runawaytruck ramp that is inclined at an angle of 10.0° above the horizontal. The semitrailer coasts to a stop after traveling 137 m along the ramp.
asked by Elizabeth 
Algebra
2(3x4)=2x9 X=? help would be lovely 😊
asked by Sarah 
Chemistry
Given 1.01 g of H2 in the reaction H2 + 1/2 O2 = H2O. The Delta H for solution is 143 kJ. What is the delta H for the reaction?
asked by Roger 
Chemistry
Use principles of atomic structure to Explain why in aqueous solution, (a) potassium forms 1+ but not a 2+ ion (a) Ti3+ is colored but Sc3+ is not. (b) Ti2+ is a reducing agent but Ca2+ is not.
asked by Lily 
English
Does defining human worth based on shallow measurements, such as wealth and possessions, make true love and humanity impossible? Who/what is to blame for this definition? Is it possible to transcend shallow measurements? Explain.
asked by Anonymous 
Math
solve log(7x3)+2log(5)=2+log(x+3) I've attempted to do this question and I ended up with log(73)+log(5^2)log(x+3)=2 but I don't what to do next or whether I did something wrong.
asked by Kevin 
PreCalculus
Applications of Logarithms I really need help with this log stuff please. If the PH of acetic acid is 5, what is the PH of hydrochloric acid if it is 200 times more acidic? the formula is right here: P=P0*10^PH2PH1 200=10^5PH1 log200=(5PH1)log10 And I
asked by Shreya 
Abnormal Psychology
Joint social attention refers to the ability to A. communicate with two people at the same time. B. coordinate one’s focus of attention on another person and an object of mutual interest. C. hold a conversation on two different topics. D. pay attention
asked by Felicia 
calculus
For the function y = 9x2 + 6x + 2, at the point x = 7, find the following. (a) the slope of the tangent to the curve (b) the instantaneous rate of change of the function
asked by Anonymous 
chemistry
When 1662 J of heat energy is added to 45.9 g of hexane, C6H14, the temperature increases by 16.0 °C. Calculate the molar heat capacity of C6H14.
asked by ashley 
math
distance from AB is 40 km.Mandy starts from A at 11 am and Jason starts from B at 1 pm.He walks at 5 km/h and gets to A at the same time as Mandy gets to B.How fast did Mandy walk?
asked by wan 
math
distance of 12 km was walked at a speed of 4 km/h on the way, and 6 km/h on the way back.What was the average speed?
asked by wan 
math
how many perfect squares between 1 and 100 end in 2 ?
asked by wan 
Abnormal Psychology
Which of the following interventions would be least likely to be used with a child with a learning disorder? A. Implementation of behavioral reinforcement B. Prescribing of medications that help learning C. Teaching the child to monitor his or her own
asked by Felicia 
math
how many axes of symmetry has a square?
asked by wan 
math
in a division sum dividing by 8 ,any remainder must be(a) more than 8,(b) half of 8,(c)less than 8,(d)equal to 8
asked by wan 
math
new south wales has 1900 km of coastline.this is 10600 km less than western australia,but 100 km greater than victoria.south australia has about twice as much coastline as new south wales,but less than western australia.the northern territory has 6200 km
asked by wan 
Reading
what does it mean when they ask you "what parts of the book stood out"?
asked by Liliana 
Algebra Grade 7
when hugo was 9 years old he was 56 inches tall. hugo is now 12 years old and he is 62 inches tall. fins the percent of increase in hugos height to the nearest tenth a customer earned 3262.50 interest on a 9month cd. how much was the opening deposit total
asked by rawr... im a dinosaur.... rawr 
algebra
Solve the equation for y. 8y + 7X = 21
asked by Linda 
Math
Solve the equation. x^25x+5=0.
asked by Linda 
Chemistry
Suppose that a stable element with atomic number 119, symbol Wr, has been discovered. (a) Write the groundstate electron configuration for Wr, showing only the valenceshell electrons. (b) Would Wr be a metal or a nonmetal? Explain in terms of electron
asked by Lily 
History
Hi for my school work I have to say out of which three colonies experienced more freedom in the seventeenth century which is hard for me to explain. The three colonies being New England,Dutch and Virginia/maryland If anyone can help thank you
asked by Jasmine 
Discreet Mathematics
Part I: Suppose you are developing a statistical database in which information about professional football teams and records are stored. Consider the following 2 sets of data that list football teams and quarterbacks: D = {Jets, Giants, Cowboys, 49’ers,
asked by Chuck 
chemistry
What can cause high pressure inside a reactor?
asked by Namie 
Calculus
Graph the following function. Find and state the domain, intercepts, asymptotes, intervals of increase and decrease, local extrema, concavity, and inflections points. F(x)=(x+1)/(square root(x^2+1)) I got so far... Domain: (infinity, infinity) Intercepts:
asked by Devin 
Successive approximations
Find all root of ln(4x^2)=x correct to 8 decimal places. List all successive approximations.
asked by Devin