Questions Asked on
April 12, 2014

CALCULUS
Sketch the region enclosed by the given curves. y = 4/X y = 16x, y = 1X/16 x > 0 and the area between the curves
asked by LAUERN PLEASE HELP 
MATH_URGENT
Let M be the midpoint of side \overline{AB} of \triangle ABC. Angle bisector \overline{AD} of \angle CAB and the perpendicular bisector of side \overline{AB} meet at X. If AB = 40 and MX = 9, then how far is X from line {AC}?
asked by RhUaNg 
CALCULUS
Sketch the region enclosed by the given curves. y = tan 3x, y = 2 sin 3x, −π/9 ≤ x ≤ π/9 then then find the area. i can sketch but cant find correct area
asked by LAUERN PLEASE HELP 
Ed tech Plz, plz help
The Second Industrial Revolution was not just marked by new inventions. New business practices were invented that transformed America’s economy. Between 1869–1910, the value of American manufacturing rose from $3 billion to $13 billion. The steel
asked by Anonymous 
3 questions~~~
1. What does the term "fairuse exception" mean? (1 point) to use only material that has never been published the ability to use material made by others for educational purposes an exception to copyright restrictions for images only Educational material is
asked by Anonymous 
Health
What type of health hazard could occur by wearing jewelry while preping food?
asked by Arthur 
math
Find the interest due to the bank on a loan of $1,000 at 7.5% for 280 days.
asked by Anonymous 
word problem
If equal amounts of heat are added to equal masses of silver and copper, both at the same initial temperature, which will reach the higher final temperature? Explain your answer. The specific heat capacity of silver is 0.235 J/g degree Celsius and that of
asked by Liz 
Help!
Geothermal power would be classified as a(n) _____________________ resource because its supply will not run out. An example of a renewable and inexhaustible resource that requires the construction of dams is _________________________ energy. To solve the
asked by Anonymous 
Chemistry
If 0.50L of gaseous CH4 is burned at STP, what volume of O2 is required for complete combustion? Methane burns in oxygen to produce CO2 and H2O CH4(g) + 2O2(g) > 2H2O(l) + CO2(g) And what volume of CO2 is produced?
asked by Mai 
Physics
A man of mass 75 kg lies on a bed of 10,000 nails. The tip of each nail has an area of 1.0 square millimeter. What pressure does the man experience? [g=10 N/kg]
asked by Erin 
algebra
Medical research indicates that the risk of having a car accident increases exponentially as the concentration of alcohol in the blood increases. The risk is modeled by R=6e^12.77x Where x is the blood alcohol concentration and R, given as a percent, is
asked by Kira 
math
Sam decides to buy 100 shares of ABC company. They cost $26.25 a share. The commission is 5% of the total price. What is Sam's total cost?
asked by Anonymous 
math
what are the mean,median,mode, and range of the data set given the altitude of lakes in feet:11,28,17,25,28,39,6,and 46? A. mean= 25; median= 26.5; mode= 28; range=40 B. mean= 25; median=40; mode=26.5; range=28 C. mean= 26.5; median= 25;
asked by HELP PLEASE!! 
Energy multiple choice question
Which of the following samples has the highest specific heat capacity? a) A 100 kg sample of lead requires 13 000 J to increase its temperature by 1 K b) A 50 g sample of water releases 1050 J as it cools by 5 degree Celsius c) A 2 kg sample of copper
asked by Liz 
Energy question
How would a $10.00 compact fluorescent light bulb (15 W) be an overall money saver compared to an incandescent light bulb (60 W) that costs $0.50?
asked by Liz 
Math
The regular pentagon have a perimeter of 18.8 units. What is the value of X?
asked by Kimberly 
birzit
boy on the edge of a vertical cliff 20 m high throws a stone horizontally upwards with a speed of 25 m\s it strikes the ground at what horizontal distance from the foot of the cliff use g=10m\s^2
asked by moath 
Chemistry
Calculate the standard cell potential for each of the electrochemical cells? What would the answers be to something like this? If someone could work out the answer I would really appreciate it. My online hw keeps telling me its wrong.
asked by John 
Physics
5.00 kg of some liquid at 10.0 oC is mixed with 1.00 kg of the same liquid at 40.0 oC. what is the final equilibrium temperature? ignore any heat flow with the containers and/or surroundings
asked by Jenifer 
math
consider the sets. A= {distinct letters in work Keep} B= {13} C= {k,e,p} D= 1 in red + 1 in black} E= {two} F= {2} What is the cardinality of each set? A= I can not figure that one out B= 1 C= 3 D= 0 E= t,w,o F not sure Can you give me some ideas Thank you
asked by mare 
CALCULUS PLEASE HELP
The birth rate of a population is b(t) = 2300e0.024t people per year and the death rate is d(t)= 1450e0.018t people per year, find the area between these curves for 0 ≤ t ≤ 10
asked by LAUERN PLEASE HELP 
math
Hal Fritz purchased a $5,000 bond at 95. The annual interest is 6%.What was the cost of the bond? What was the annual interest? What is the yield (to nearest tenth of a percent)? please help
asked by justin 
math
The account balance on April 1st is $50.51. On April 15th a payment of $15.00 is made. On April 25th a purchase of $19.27 is made. What is the finance charge if the annual rate is 18%?
asked by tasha 
Macroeconomics
I need help to answer this question? You want to determine the profitmaximizing production quantity for a monopolist. You can ask the firm's consultant to draw the firm's revenue and cost curves, but each curve would cost you $1,000. From the following
asked by bob 
Energy question
Your friend comes across a good deal to purchase a gold ring. She asks you for advice for you to test the ring. The ring has a mass of 4.54 g. When you heat the ring with 94.8 J of energy, its temperature rises from 23.0 degrees celsius to 47.5 degrees
asked by Liz 
englishpoetry
how do i write a rap about school??
asked by sun111 
microeconomics
if redstone clayworks company want to minimize their average total cost how many units should they produce?
asked by Anonymous 
statistics
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 12 patients using the drug is selected. If you wanted to find the probability that exactly three will have this mild side effect,
asked by Pista 
math
Solve the equation z^2 + 2j = 0 Then convert solutions to Cartesian form.
asked by Alice 
maths
the blood alcohol concentration(BAC)in the uk is 0.08%. A well known formula for calculating BAC percentage is widmarks formula BAC%=5.14A/rW 0.015H Where A is the total alcohol consumed in ounces, W is the body weight in pounds, r isthe alcohol
asked by susan 
algebra
Use the fact that after 5715 years a given amount of carbon 14 will have decayed to half the original amount to find the exponential decay model for carbon 14. In 1947, earthenware jars containing what was known as the Dead Sea scrolls were found by an
asked by Kristina 
physics
A cylindrical conductor of radius carries a uniformly distributed current I. Show that the magnetic field within the conductor measured at a distance r from the center is given by the following equation... B= (u0Ir)/2pi a^2
asked by John 
Chemistry
Calculate ΔG∘rxn and E∘cell for a redox reaction with n = 1 that has an equilibrium constant of K = 28? What would the answer be to this? Could someone work this out for me please? ΔG∘rxn = ......kj E∘cell = ......V
asked by John 
PreCalculus
How to solve this problem by using logarithm: David inherits $10000 and invests in a Guaranteed Investment Certificate (GIC) that earns 6%, compounded semiannually. How long will it take for the GIC to be worth $11000.
asked by Hanu 
chemistry
If a particular reaction absorbs 252 kJ of heat while doing 105 kJ of work at constant pressure. What are the ΔE and ΔH for values for the reaction? Is the reaction endothermic or exothermic?
asked by Mai 
CHEMISTRY
WHAT IS THE EMPIRICAL FORMULA FOR A COMPOUND THAT HAS 200GRAMS. 97.30 GRAMS OF CARBON, 16.22 GRAMS OF HYDROGEN, AND THE REST IS OXYGEN?
asked by BILL 
Social Studies
After India declared their independence, what changes occurred to the nations of South Asia? Pakistan and Bangladesh were inspired to declare independence Afghanistan's king was forced to resign Sri Lanka began fighting a civil war India was
asked by Brady 
math
pairs of jeans and want to take 2 with you. how many different ways can you pick 2 pairs of jeans.
asked by steve 
math
I have 7 different pairs of jeans and want to take 2 with me on vacation. how many different ways can you pick 2 pairs of jeans to take on vacation. sorry for not proofing before
asked by steve 
math
Tim Worker buys a new sofa for $629.95. He pays 25% down and takes an installment loan to complete the purchase. He makes 12 payments which include his principal and a $60.00 finance charge. What is the APR on his loan to the nearest tenth? The down
asked by Anonymous 
Algebra
x over 2x5  5 over 6x15
asked by Mark 
Math
We are learning about proofs. We drew lines between noncollinear points. Our table showed 2 points >> 1 line segment, 3 point >> 3 line segments, 4 points >> 6 line segments, 5 points >> 10 line seg, 6 points >> 15 line seg. etc. Write an expression in
asked by Anon 
Chemistry
Calculate pH of an acetate buffer containing 27.5 mM acetic acid (pKa is 4.74) and 50 mM sodium acetate. When a 30 mM aq solution of sodium acetate was prepared in the lab it had a pH of 8.8. Calculate the amount of acetic acid (in g) to be added to 0.5 L
asked by Sarah 
Cultural Anthropology Help please!!!
contrast the four types of subsistence strategies, being sure to include differences in lifestyle, kinship, property ownership, distribution of resources and division of labor. Thank you!
asked by Selda 
math
Sam Seller offers credit at 19% interest per year.
asked by tasha 
U.S. History
Read this passage by Booker T.Washington: I am in favor of every measure that will give to woman, the opportunity to develop to the highest possible extent, her moral, intellectual, and physical nature so that she may make her life as useful to herself and
asked by Anne 
math
a pyramid has a height of 5 inches and a surface area of 90 inches squared. A similar pyramid has a height of 10 inches what is it's surface area?
asked by steve 
calculus
in the following series x is a real number. In each case use the ratio test to determine the radius of convergence of the series. Analyze the behavior of the series at the endpoints in order to determine the interval of convergence. A) (nx^n)/(n^2 + 2)
asked by maggie 
Energy question
how could you determine the efficiency with which the mechanical energy of a pendulum is conserved?
asked by Liz 
Algebra
Bobo bought a 1 ft squared block of cheese. He needs to cut it into 3 in. cubes. The block is yellow outside but green on the inside. How many 3 in. cubes does it have? How many of the cubes have no yellow face, one yellow face, 2 yellow face, etc. Please
asked by Sarah 
Chemistry
If the titration of a 25.0 mL sample of calcium hydroxide requires 34.45 mL of 0.100 M perchloric acid, what is the molarity of the base? 2 HClO4(aq) + Ca(OH)2(aq) → Ca(ClO4)2(aq) + 2 H2O(l)
asked by John Cook 
Algebra
log base 2 x + log base 2 (x7)=3 solving steps?
asked by Peggy 
information literacy
. In the keyword search on EDSeek's Home Page, enter the following statement: NASA* AND Mars*. Based on the results from this search, choose the best answer to this question. Which of the following is not a listed document type?
asked by Cassandra 
word problem
the function f(x)= 34.1 Ln x + 117.7 models the number of U.S. Internet users, f(x) in millions, x years after 1999. By which year will there be 250 million Internet users in the U.S.?
asked by Kristina 
financial management
2. If you have an opportunity cost of 10%, how much should you be willing to invest now to have $8,000 accumulated in 10 years?
asked by lori 
Chemistry
To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 10.9 g, and its initial temperature is 12.0 °C. The water resulting from the melted ice reaches the temperature of your skin, 29.6 °C. How much
asked by Karen 
Physics
Which of the following is the equation of the circle with centre (1.5, 0.5) and radius 3? A. 2x^2 + 6x + 2y^2  2y  13 = 0 B. 2x^2  6x + 2y^2 + 2y  13 = 0 C. 2x^2  6x + 2y^2  2y  13 = 0 D. 2x^2 + 6x + 2y^2  2y  23 = 0 E. @x^2 + 6x + 2y^2  2y 14
asked by Erin 
microeconomics
if nancy pelosi declared that clay firepits are causing global warming, demand for firepits shrink substantially in the U.S, especially in California. Firepits prices fall worldwide to 65 dollars. Now the manager of redstone should produce how many units?
asked by Anonymous 
Physics 141
A 71kg skier is going down a slope oriented 37° above the horizontal. The area of each ski in contact with the snow is 0.13 m2. Determine the pressure that each ski exerts on the snow.
asked by dakota22 
Life science, tourism, geography, and maths litera
what careers can i do with this subject
asked by thubelihle 
science
Amount of force =52pascal,pressure =13newton,find the area.
asked by H S B 
Physics (Rotation)
In the figure, wheel A of radius rA is coupled by belt B to wheel C of radius rC. The angular speed of wheel A is increased from rest at a constant rate α. Find the time needed for wheel C to reach angular speed ω assuming the belt does not slip. (Hint:
asked by Anon 
Astrophysics
The Earth formed at a redshift of z∼0.53. That means that when our world was young, the universe was quite a bit smaller than it is today. The nearest galaxies to our own are around 10 kpc (kiloparsecs) in size, lie at a distance of around 1 Mpc from us
asked by Anonymous 
Physics
An object of mass 50 g floats in a liquid of density 2.5 g/ml. When the object is placed in a liquid of density 2.0 g/ml, it sinks to the bottom of the container. What is the force that the object exerts on the bottom of the container? [g = 10m/s^2 =
asked by Erin 
math
A shopkeeper sells a mattress and makes a profit of 10% on the cost price. If he had sold the mattress for $150 less,he would have incurred a loss of 40% on the cost price. Find the cost price of the mattress.
asked by Anonymous 
math
At a boutique,an evening gown is marked at a profit of 40% on the cost price. It is sold in a sale at 20% discount. (a)Find the actual profit as a percentage of the coast price. (b)If a customer bought it for $448, find the actual profit
asked by Anonymous 
maths
the rate of the fall of an object can be determined by the formula h=1/2gt^2 where h is the height, g is the acceleration due to gravity and t is time in seconds. If a gun is fired 5 feet above the ground and level to the ground, how far would the bullet
asked by susan 
maths
a bullet weighing 8.1g is found to have a kinetic energy of 1 kJ, find its velocity
asked by susan 
maths
the blood alcohol concentration(BAC)in the uk is 0.08%. A well known formula for calculating BAC percentage is widmarks formula BAC%=5.14A/rW 0.015H Where A is the total alcohol consumed in ounces, W is the body weight in pounds, r isthe alcohol
asked by susan 
maths
assuming the brain is shaped as a hemispere, find the circumference of the brain if the colume is 1.3KG
asked by susan 
Maths
Solve equation in elimination method (3a=51 and 3a=5a+3
asked by Roman 
maths
pls help me to do this sum.... THE DISTANCE BETWEEN THE SCHOOL AND THE HOUSE OF A STUDENT'S HOUSE IS 1 KM 875M.EVERYDAY SHE WALKS BOTH WAYS.FIND THE TOTAL DISTANCE COVERED BY HER IN 6 DAYS?
asked by LALY 
water chemistry
35.0 mL sample of 0.150 M acetic acid (HC2H3O2) (Ka = 1.8 x 105) is titrated with 0.150 M NaOH solution. Calculate the pH after 17.5 mL volumes of base have been added
asked by matsobane frans 
science
Identify and discuss the main safety legislation applicable to the installation, commissioning operating and maintaining the tube swaging machine.
asked by Andy 
econ
You want to determine the profitmaximizing production quantity for a monopolist. You can ask the firm's consultant to draw the firm's revenue and cost curves, but each curve would cost you $1,000. From the following list indicate which curves you will
asked by bob 
chemistry
It is possible to manipulate the solubility of some compounds through pH adjustments. What is the appropriate pH that will yield a Molar solubility for Mg(OH)2 of 2.51 x 108? The Ksp for Mg(OH)2 is 1.2 x 1011. (Hint: you may assume the concentration of
asked by bekah 
math
For the system of linear equations below, use graphing to determine in which quadrant the solution lies. x+2y=2 2x+y=14 Quadrant III Quadrant I Quadrant II Quadrant IV
asked by sofia 
chemistry
A 1.0 L solution has 10.00 grams of CaCl2 dissolved in it. What is the Molar solubility of AgCl in this same solution? The Ksp for AgCl is 1.6 x 1010 at this temperature. Hint: watch out for the common ion again.
asked by bekah 
Food and Nutrition
How is "Healthy IceCream Alternate Sandwich" a healthy recipe?? Ingredients: 1012 ripe bananas 1/.5 cup of strawberries 22 graham crackers Procedure: 1)Mash the bananas and make a mixture with the strawberries and bananas 2)Freeze the mixture 3)put the
asked by Lisa 
algebra
F(t)= 30000 1+20e^1.5t Describes the number of people, f(t), who have become ill with influenza t weeks after the initial outbreak in a town with 30,000 inhabitants. a. How many people became ill with flu when the epidemic began? b. How many people were
asked by Kristina 
algebra
How long, to the nearest day, will it take $25,000 to grow to $500000 at 9% annual interest compounded monthly?
asked by Kira 
math
There are 3 white marbles and 7 blue marbles in a bag. Jamie will randomly pick two marbles out of the bag without replacing the first marble chosen. What is the probability of Jamie picking two blue marbles
asked by Anonymous 
physics
In one type of mass spectrometer, ions having the same velocity move through a uniform magnetic field. The spectrometer is being used to distinguish 12C+ and 14C+ ions that have the same charge. The 12C+ ions move in a circle of diameter 25 cm. (a) What is
asked by Homer 
Chemistry
Calculate the standard cell potential for each of the electrochemical cells? What would the answers be to something like this? If someone could work out the answer I would really appreciate it. My online hw keeps telling me its wrong.
asked by John 
Algebra
Medical research indicates that the risk of having a car accident increases exponentially as the concentration of alcohol in the blood increases. The risk is modeled by R=6e^12.77x Where x is the blood alcohol concentration and R, given as a percent, is
asked by Seth 
Algebra
F(t)= 30000/1+20e^1.5t Describes the number of people, f(t), who have become ill with influenza t weeks after the initial outbreak in a town with 30,000 inhabitants. a.) How many people became ill with flu when the epidemic began? b.) How many people were
asked by Seth 
chemistry
1. Calculate pH of an acetate buffer containing 27.5 mM acetic acid (pKa is 4.74) and 50 mM sodium acetate. When a 30 mM aq solution of sodium acetate was prepared in the lab it had a pH of 8.8. Calculate the amount of acetic acid (in g) to be added to 0.5
asked by Nick 
art 101
What kind of light brings the greatest appearance of depth in a photo.
asked by pharah 
Criminal Justice
Which of the following would be of greatest concern from an ethical standpoint? A. The number of homicide victims in a given place during a given time period. B. The legal elements of the crime of homicide. C. Whether capital punishment is a justifiable
asked by Pat 
alegebra
solve this equation 2(6v8)2=1312v
asked by michael 
maths
assuming the brain is shaped as a hemispere, find the circumference of the brain if the volume is 1.3KG
asked by susan 
English
Which literary term best matches this? A group of four rhyming lines.
asked by Anonymous 
Biology
Im stumped... These answers I cannot find, please and thank you :) 1) In males, the primary target of FSH is the ______. 2)Testosterone and other androgens are secreted by the______. 3)During meiosis, when synapsis occurs, corresponding maternal and
asked by Elise 
Algebra
If Sam takes 6 hours to paint a house, and Pat takes 12 hours to paint the same house; how long with it take the 2 men to paint the same house together? What is the correct formulary?
asked by Angie 
alegebra
slove this equation 4.4(4+5k)=145.2
asked by michael 
alegebra
solve this equation 4.5(3v0.8)0.83=61.72
asked by michael 
Chemistry
If a particular reaction evolves 192 kJ of heat while expanding from 1.00 L to 2.00 L at 125 atm of pressure, what is the overall energy change for the system?
asked by Mai 
Criminal Justice
Question: The primary purpose of ethical injury is to: A. find all the possible solutions to a problem. B. critically reflect upon how we live and the choices we make. C. learn about the philosophies of the past 2000 years. D. Memorize relevant codes of
asked by Pat 
Statisttic
If 3 cards are drawn, without replacement, from a deck of 52 cards, the probability of getting 3 7's is [x]. Round to 5 decimal places.
asked by Anonymous 
maths
2x+y=7 x(2)xy=6 pl plz help me someone
asked by krissy 
Sociology
If Andrea's parents have her take violin lessons, take a foreign language and attend science camp in hopes of her developing skills so she can get into a competitive college, is that an example of human capital or cultural capital? I was leaning towards
asked by Jared 
Epi
a. A study of the relationship between exercise and heart attacks that is conducted among women who do not smoke. Explain whether gender is a confounder.
asked by dorbor 
Calculus
For what values of x is the graph of y=x e^{4 x} concave down?
asked by JAYZ 
chemistry
The breakdown of pnitrophenylphosphate at pH 2.6 is a first order hydrolysis process.. a) 12.5mmol of NPP were dissolved in 200mL of water at 77degrees celcius after 50mins the amount of NPP dropped to 10mmol. Calculate the average rate of this reaction
asked by N 
Social Studies
What characteristic did the Mauryan and Mughal empires share? Both helped spread Buddhism Both helped spread Islam Both embraced the idea of religious tolerance Both were begun by Aryan people
asked by Jack 
Math
Kaylee got a 15% raise. She now earns $23 an hour. How much did she earn before the raise?
asked by Katherine 
Math
Ruth Anne used 0.8 meters of cord to trim a picture frame. How many more frames of this size can she trim with 13.5 meters of additional cord.
asked by ??????? 
math
you have a spinner labeled 1 through 10. you spin once. what is p (divisimble by 2)
asked by steve 
Math
Integrate (5x^2 + 3x  2)/(x^3 + 2x^2)
asked by Anonymous