1. Archives
  2. 2011
  3. November

Questions Asked on
November 4, 2011

  1. physics emergency

    m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

    asked by mary

  2. Physics

    Two wheels have the same mass and radius of 4.0 kg and 0.35 m, respectively. One has (a) the shape of a hoop and the other (b) the shape of a solid disk. The wheels start from rest and have a constant angular acceleration with respect to a rotational axis

    asked by Jasmin

  3. chemistry

    Draw the lewis structure for: SiO3 -2 CNO- TeO4 -2 F2PPCl2 thanks!

    asked by patricio

  4. Chemistry

    If a sample of pure hydrogen gas is ignited very carefully, the hydrogen burns gently, combining with the oxygen gas of the air to form water vapor. Write the unbalanced chemical equation for this reaction.

    asked by Cassie

  5. triangles

    The measures of two of the sides of an equilateral triangle are 3x + 15 in. and 7x – 5 in. What is the measure of the third side in inches?

    asked by Ryan

  7. chemistry

    A glucose solution contains 55.8g of glucose (C6H12O6) in 455g of water. Calculate the freezing poing and boiling point of the solution. (Assume a density of 1.00 g/ml for water. This what I did, I got moles of C6H12O6, 0.89 moles C6H12O6 then I got the

    asked by Monique

  8. Calculus

    A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is $1 per gallon and the driver is paid $8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct

    asked by Lisa

  9. Math

    Find the value of x. The area of a rectangle = 105 The length is 2x+1 Width is x __________________________________ I tried solving it : Arec = l x w 105 = (2x+1)x 105 = 2x^2 + x 0= 2x^2 + x - 105 This is where I get stuck on...

    asked by Lynn

  10. Physics (College)

    One simple model for a person running the 100 m dash is to assume the sprinter runs with constant acceleration until reaching top speed, then maintains that speed through the finish line. If a sprinter reaches his top speed of 10.8 m/s in 2.54 s, what will

    asked by Set8

  11. Physics (College)

    A car starts from rest at a stop sign. It accelerates at 2.0 m/s^2for 6.0 seconds, coasts for 2.0 s, and then slows down at a rate of 1.5 m/s^2 for the next stop sign. How far apart are the stop signs?

    asked by Set8

  12. geography

    Describe the factors that influence the weather, and explain how meteorologists are able to predict changes in the weather.

    asked by lola

  13. Math Grade 11 U

    A water balloon is catapulted into the air so that its height, h, in metres after t seconds is h=-4.9t^2+25t+1.9. when is the ball 13 m high?

    asked by Jamie

  14. chemistry

    Find the solubility of AgBr in 3.9 M NH3 [Ksp of AgBr = 5.0 10-13 and Kf of Ag(NH3)2+ = 1.7 107]

    asked by courtney

  15. To Michael

    Here's the question you posted in response to another student. "Ms.Sue do you mind if i ask were you a math teacher or are you just a genius at math and why do you do this help online do you get any benefit for doing this?" I taught a couple of sections of

    asked by Ms. Sue

  16. Chem

    Does any solid PbCl2 form when 3.1 mg NaCl is dissolved in 0.228 L of 0.12 M Pb(NO3)2. Find the Qsp.

    asked by Savannah

  18. chemistry lewis structure

    please help me i don't know how to do this! Draw the lewis structure for: SiO3 -2

    asked by sari

  19. Calculus

    A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is $1 per gallon and the driver is paid $8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct

    asked by Lisa

  20. pre cal

    The yearly attendance at a local movie theater is 82,000 and grows continuously at a rate of 5.1% each year. What is the approximate attendance at the movie theater in ten years?

    asked by Anonymous

  21. math

    The number of customers that visit a local small business is 51,200 and has been continuously declining at a rate of 3.8% each year. What is the approximate number of customers that visit the business in 14 years

    asked by Anonymous

  22. college Algebra

    Find the number of years for $4800 to grow to $9400 at 6% compounded quarterly. Round to the nearest tenth of a year.

    asked by Anonymous

  23. geography

    Identify the five main elements that determine an area's climate, and give a brief description of each element.

    asked by lola

  24. English

    Directions: Revise the following sentences to eliminate unnecessary shifts in tense, mood, voice, or person and number and between direct and indirect discourse. Most of the items can e revised in more than one way. Examples: • When a person goes to

    asked by Victor

  25. biostatistics

    among coffee drinkers, men drink a mean of 3.2 cups per day with a standard deviation of 0.8 cups. Assume the number of coffee drinks per day follows a normal distribution. a. What proportion drinks 2 cups per day or more? b. What proportion drink no more

    asked by natasha

  26. Calculus

    A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is $1 per gallon and the driver is paid $8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct

    asked by Lisa

  27. physics

    A painter on a wooden plank drops a 1.50-kg can of paint from a height of 6 m. Find the following: (A) KE when the height is 4 m above the ground. (B) speed of the can 4 m above the ground. (C) speed of the can 1 m above the ground.

    asked by Tiziana

  29. marketing

    How do consumption habits for products such as Scotch whisky vary from country to country? Why are some spirits products and brands strictly local, while some have global potential?

    asked by John

  30. urgent physics

    A power line carries a current of 110 A at a location where the Earth's magnetic field has a magnitude of 0.37 Gauss (0.37·10-4 T) and points due north, very nearly parallel to the ground. Find the direction and magnitude of the magnetic force exerted on

    asked by sonia

  31. math

    Find the APR: Amount Financed $3500; Interest Charged $ 675; Number of Payments 24

    asked by Anonymous

  32. candle

    The flywheel of a prototype car engine is under test. The angular position θ of the flywheel is given by θ = (3.0rad/s3)t3 and the diameter of the flywheel is 36cm. (a)Find the distance that a particle on the rim moves during that time interval. (b) Find

    asked by ahmed

  33. English

    What are some examples of literary devices for irony, foreshadowing and symbols in the story of Alex Rider Scorpia rising \

    asked by Anonymous

  34. math

    Paul works at a gas station. He earns $9.00 per hour. If he works eight hours a day, how much does he earn in a day? He works for six days a week. What is his weekly pay?

    asked by Sall

  35. reproductive system

    re arrange pamouseen to make a word from the reproductive sytem

    asked by gregor

  36. statistics

    A sample of n = 9 has a mean of M = 72 with SS = 162. Use the sample to make a point estimate of ì and to construct the 90% confidence interval for U. (Round all answers to two decimal places.) U = ? ± ? ( ?) The 90% confidence interval for U: ( ? , ? )

    asked by Anonymous

  37. arithmetic

    The 8th term of an A P is 5times the third term while the 7th term is 9 greater than the 4th term.what are the first five term

    asked by Anonymous

  38. physics

    A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is

    asked by Meagan

  40. physics

    Initially a small car and a truck are at rest then the car starts pushing a dead battery truck and they both accelerate. Which of the following statement is true? a)The car exerts a larger force on the truck than the truck exerts on the car. b) The car

    asked by Cindy

  41. Physics

    A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.4 m waterfall. The spy’s speed is 14 m/s and the officials’

    asked by Marie

  42. Chemistry

    In the reaction between aluminum and hydrochloric acid, how many moles of hydrogen gas would be liberated when 3.612E-2 grams of aluminum are treated with excess hydrochloric acid? Moles of hydrogen gas liberated = mol The atmospheric pressure was measured

    asked by Carrie

  43. Physics

    In a mass spectrometer, singely ionized carbon-12 (normal carbon of atomic mass number 12) has a radius of curvature of 9 cm. What would be the radius of curvature of singely ionized carbon-14, assuming equal velocities? (A) 12.3 (B) 10.5 (C) 7.71 (D) 3.58

    asked by Arielle

  44. math

    In the bac of an old cupboard you discover a note signed by a pirate famous for his bizarre sense of humor and love of logical puzzles. In the note he wrote that he had hidden treasure somewhere on the property. He listed five true statements and

    asked by bill

  45. math- precalculus

    Help please! I can't seem to get x as the answer to prove that they are inverses of each other! Show what f and g are inverse functions algebraically f(x)= x-1/x+5 g(x)= -5x+1/x-1

    asked by Sara

  46. trig

    Find exact value of the expression. sin( 27pi/4 + 17pi/6)

    asked by Brianna

  47. Physics

    What is the wavelength of radio waves of frequency 1400 kHz? (a) 42.9 (b) 214 (c) 42.9 (d) 3*10^8

    asked by Arielle

  48. math(advanced functions)

    what are the key features of x/(x^2-3x+2)?

    asked by hi

  49. physics

    A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is

    asked by Meagan

  51. Chem

    The coordination compound has five stereoisomers (geometric plus optical isomers). Select all that apply... A:NH4[Pt(NH3)Cl3] B: tris(ethylenediamine)cobalt(III) sulfate C: tetraaquadichloronickel(IV) chloride D: [Co(NH3)2(en)Cl2]Cl E: [Co(en)2Cl2]Br F:

    asked by Rachel

  52. 8th grade math in pre-algebra

    6(2x+3)=42

    asked by Anonymous

  53. Physics

    At the end of a race a runner decelerates from a velocity of 7.00 m/s at a rate of 0.500 m/s2. (a) How far does she travel in the next 14.0 s in meters?

    asked by Lindsey

  54. chemistry

    a student dissolves 0.625 g of pure benzoic acid in distilled water and titrated the resulting solution to the equivalence point using 40.8 mL of the standardized NaOH solution from Part a, assuming that benzoic acid has only one ionizable hydrogen, answer

    asked by Anonymous

  55. Physics

    ~I got a and b right but c i can't figure out Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity of a freight train that accelerates at a rate of 0.0600 m/s2 for 8.00 min, starting with an

    asked by Lindsey

  56. English

    Could you please check the following sentences for me? Thank you. 1) She delayed taking a shower. 2) She was caught cheating (by a teacher). 3) Sha saw him chatting up a girl. He was seen to chat up a girl. 4) An animal's reaction to a drug is different

    asked by Henry2

  57. physics

    A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 95 kg. The mass of the rock is 0.34 kg. Initially the wagon is rolling forward at a speed

    asked by Meagan

  58. Physics

    An horizontally flying airplane has a 20 m wing span. If the vertical component of the Earth's magnetic field is 2*10^-5 T, and the voltage measured from wing tip to wing tip is 4 mV, What is the ground speed of the plane? (A) 5 m/s (B) 20 m/s (C) 7 m/s

    asked by Arielle

  59. physics

    A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless

    asked by Meagan

  60. statistics

    A single sample is being used to construct a 90% confidence interval for the population mean. What would be the difference between an interval for a sample of n = 25 and the interval for a sample of n = 100? Assume that all other factors are held constant.

    asked by Anonymous

  62. physics

    A plane flying horizontally above Earth’s surface at 184 meters per second drops a crate. The crate strikes the ground 30.0 seconds later. What is the magnitude of the horizontal component of the crate’s velocity just before it strikes the ground?

    asked by Jules

  63. geometry

    DC = 10 What is the measure of angle ABD?

    asked by Dara

  64. Business English

    "I was sorry to hear about your mother's death." Indicate the alternative that both correctly evaluates the sentence and correctly explains the reason for the evaluation. Would it be: (a) Lacks you-attitude because it begins with the word"I" (b) Lacks

    asked by Carol

  65. chemistry lewis structure

    help me please! dram the lewis structure of CNO - explain me please! thanks

    asked by sari

  66. maths

    whats the for this question if sin3x=cos6x,then x=_____

    asked by saniya

  67. Algebra

    How can I tell what direction this parabola open up -2x^2 +16x+24y-224=0 We just started this in class today do I need to change this into another format

    asked by Tonya

  68. English-Urgent

    I have to find the subjects and verbs in all these sentences, please let me know if I did it correctly. Thank you. A guy whom I work with has a theory about college students. (Verb=work, has) (Subject=guy, theory) He believes that students' majors reflect

    asked by Ally

  69. sociology-pls help

    similarities between milgram's experiment and stanford experiment pls help

    asked by ted

  70. Physics

    The first accurate measurement of the speed of light was made by Roemer in the 17th century. His measurements were based on observations of (a) The timing of the eclipses of the binary stars Alpha and beta Centauri (B) Refraction of light from a star when

    asked by Arielle

  71. geometry

    Line l bisects AB. find AC and AB

    asked by Anonymous

  73. Regression Analysis

    In order to qualify for federal job training funds, a neighborhood group must provide an estimate of the mean of education level of unemployed youths less than or equal to 21 years old. The group plans to survey youth in its service area. The population of

    asked by MK

  74. physics

    The block of mass 1.75337 kg has an acceleration of 3.8 m/s2 as shown. What is the magnitude of F? Assume the acceleration due to gravity is 9.8 m/s2 and the surface is frictionless. Answer in units of N

    asked by Jules

  75. statistics

    A sample of n = 9 has a mean of M = 72 with SS = 162. Use the sample to make a point estimate of ì and to construct the 90% confidence interval for ì. (Round all answers to two decimal places ì = ? ± ? ( ? ) The 90% confidence interval for ì: ( ? , ?

    asked by Anonymous

  76. ENGLISHESSAY

    While many complain about health care reforms and envy neighboring countries like canada on their single-payer system, there are many complications that come from this stance on healthcare reform. Although Holly Dressel has some good points about social

    asked by HM

  77. light

    An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located? answer 15 millimeters.

    asked by lisa

  78. calculus

    A small dog shelter in the shape of a rectangular solid is to have a square base and an open front. If the volume is to be 36ft^3, find the dimensions for which the amount of material needed is a minimum. V=2x*y

    asked by HELP!

  79. Business English

    Which of the following, if any, is the BEST replacement for "seems to be of importance"? I have the answer as (B) "Seems Important" Is this the correct answer?

    asked by Carol

  80. Social studies

    Write a paragraph explaining the social and economic effects of an industrial revolution.

    asked by Amanda

  81. Chemistry

    Dissolving one mole of salt in water yields two moles of ions. A:NH4[Pt(NH3)Cl3] B: tris(ethylenediamine)cobalt(III) sulfate C: tetraaquadichloronickel(IV) chloride D: [Co(NH3)2(en)Cl2]Cl E: [Co(en)2Cl2]Br F: sodium hexacyanoferrate(II) None of these

    asked by Amanda

  82. engineering

    I need help with my Fire Engineering homework. What is the heat release rate of a flame measuring five feet in height assuming the flame is in the center of a room?

    asked by Deborah

  84. Math

    If a guy speaks spanish AND english.. is it mutually inclusive or exclusive? Probability sense.

    asked by HM

  85. EnglishCheck

    Many complain about health care reforms and envy neighboring countries like Canada on their single-payer system. Nonetheless, the universal healthcare system may have many cost effective benefits for everyone, but who wants reduced prices at the stake of

    asked by HM

  86. CHEMISTY

    why is but-1-ene a structural isomer of 2-methylpropene?

    asked by yukila

  87. Physics - high School

    2 Long vertical walls are separated by length l. A ramp is placed between the walls as shown below. A block is placed on the ramp and one end and slides without friction towards the other end. Find the ramp angle (theta) which results in the fastest trip

    asked by Sparkles

  88. Law

    "A person who has both rights and duties" is a concept that defines the most basic concept of the law. In U.S. law, a person is defined as having all of the rights specified in the first 10 amendments to the U.S. Constitution (the Bill of Rights), plus

    asked by Colby

  89. geometry

    Question 14: The following circle has a radius of 8 feet: What is the total area of the shaded regions?

    asked by bob

  90. English

    I left out three sentences on the use of "enrol" 1) I signed up for/I enrolled in the drama course. I enrolled a technical high school in 1998. 2) I joined the Scouts in 1998. I enrolled in the faculty (at university??) of Medicine 3) I enrolled my child

    asked by Henry2

  91. algebra

    How many soluations are there to the equation -0.2x^2+12x+11=0? How do we know?

    asked by Anonymous

  92. algebra

    How many solutions are there in the equation -0.2^2+12x+11=0. How do yoy know? What do the solutions represent? Is there a solution that dose not make sense? If so, in what way dose the solution not make sense?

    asked by Anonymous

  93. statistics

    If a population has a standard deviation of 5 units what is the standard error of the mean if samples of size 25 units are selected????

    asked by Amy

  95. Math

    Reasoning Janice said that if you cut a cube into two parts you form 2 smaller cubes. Ling said that 2 rectangular prisms are formed. Who is correct? Explain.

    asked by Karen

  96. Physics

    The wavelength of light emitted from a distant galaxy by a hydrogen atom is observed to be 400 nm. If it is known that the laboratory wavelength of this light emitted by hydrogen is 380 nm, what is the velocity of the galaxy? (a) .135c away from Earth (b)

    asked by Arielle

  97. career research&decision making

    each occupational field

    asked by courtney

  98. calculus

    for what value(s) of x does the slope of the curve y=-x^3+3x^2+1 take on its largest value

    asked by Anonymous

  99. physics

    3 beakers are being heated (small, medium and large). consider the first two. both beakers are filled with water and heated for 10 minutes. after about 3 minutes the water in the small beaker the water in the small beaker is boiling; after 8 minutes the

    asked by lissa

  100. Chem

    Arrange these elements P, Mg, N, Br, K in increasing metallic character

    asked by Sam

  101. Algebra

    Two hoses are connected to a swimming pool. Working together, they can fill the pool in 4 hr. The larger hose, working alone, can fill the pool in 6 hr less time than the smaller one. How long would it take the smaller one, woking alone, to fill the pool?

    asked by Megan

  102. Algebra

    Rationalize the denominator: 5 /4-squareroot 5 (five over four minus square root five) Please explain

    asked by Megan

  103. calculus

    at what points on the hyperbola xy=12 is the tangent line parrallel to the line y= -3x

    asked by Anonymous

  104. English

    Revise the following sentences to eliminate unnecessary shifts in tense, mood, voice, or person and number and between direct and indirect discourse. Most of the items can e revised in more than one way. 1. The greed of the 1980s gave way to the

    asked by Victor

  106. facility planning

    How have utilization and design of healthcare facilities changed over the last 150 years? What key factors led to these changes?

    asked by Tamy

  107. statistics

    Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 50 percent of SOC 390 students work more than ____ hours per week

    asked by Sarah

  108. derivatives

    How do I find the 2nd derivative of x^(-1/15)

    asked by Jacob

  109. chemistry(rusting)

    Why metal(eg. iron)placed at aqueous solution will be more easily occur rusting?Is it due to the mobile ions in the aqueous solution ?Please give me an detail explanation ,thank you.

    asked by Kong

  110. MATH HELP HELP HELP HELP HELP

    Sn=(n^2+n)^1/2 - n Prove that Sn < 1/2 for all n

    asked by MATH HELP HELPPP

  111. engineering

    I need help with homework in Fire Engineering. What flame height would result from a 3 megawatt fire located in the corner of a compartment? This help will be appreciated. Thanks.

    asked by Deborah

  112. probability

    if for two random variables X and Y,is Y=-X then ñ=1

    asked by alex

  113. math

    In a class of 29 children, each of 20 children has a dog and each of 15 has a cat. How many of the children have both a dog an a cat using Vinn Diagrams

    asked by John

  114. English

    I have a few doubts.I hope you can help me.Thank you. 1) Can you recommend a site where children aged 6-7 can learn English? 2) My child likes playing games on his Nintendo DS. 3) How can you express this: what do you do when you finish surfing the net?

    asked by Henry2

  115. Physics

    A rock thrown with an initial velocity of 35 m/s at an angle of 48° with respect to the horizontal has a range of 963 m on a certain planet. What is the acceleration of gravity on this planet?

    asked by Jen

  117. College Algebra

    Evaluate the function y=2.55^(x+1) at the value x=1.83

    asked by Pamela

  118. geometry

    The perimeter of a rectangle is 60 units. Its width is 5 units. What is the area of the rectangle?

    asked by Destany

  119. english help asap

    this is my intro to my comparison essay, but i feel like there should be something extra before "an analysis..." but i don't know what i should write. this is what i have so far: Miley Cyrus song “The Climb” is not only one of my favourite songs, but

    asked by lalala

  120. information literacy

    Which of the following sets of Dewey Decimal call numbers is in the correct order 100.01 PRO, 100.1 BLU, 010.1 ABR, 004.15 KWA B. 100.1 BLU, 010.1 ABR, 004.15 KWA, 100.01 PRO C. 004.15 KWA, 010.1 ABR, 100.01 PRO, 100.1 BLU D. 010.1 ABR, 004.15 KWA, 100.01

    asked by Anonymous

  121. Genetics

    1) Do you know if the nucleotide sequence of a mutation tell you anything about its dominance or recessiveness? 2) Do you know the role that Ras play in the signal transduction pathway that makes it an oncogene?

    asked by Bobby

  122. chemistry

    .115 mol of solute is put in a container and water is added to give 250ml of solutrion. what is the molarity

    asked by becky

  123. Physics

    What is the resonant frequency in an RLC circuit if R=5 , C=6, and L=12 mH, and V-115 V? (a) 593 (b) 41,400 (c) 1560 (d) 1793

    asked by Arielle

  124. human service management

    . Are grants more vital to some programs than others?

    asked by debra

  125. algebra

    Solve -7(11-4w) -15w= negative 27-(50-13w)

    asked by sharday

  126. Physics

    what is the minimum amount of force that must be applied to the sled in order to start it moving? the static friction is 0.30 and the sliding coefficient is 0.10 and the total mass of the sled is 50 kg

    asked by Ryan

  128. statistics

    If a population has a standard deviation of 5 units what is the standard error of the mean if samples of size 25 units are selected????

    asked by anon

  129. Algebra-HELP

    x and y vary directly. If y = 24 when x = 8, what is the variation constant and write the variation equation. explain work

    asked by Angelina

  130. Science

    Force of a 1500 kg rhino to accelerate to 4m/s2 How do I figure this out?

    asked by Nora

  131. Science

    The force of a 4 kg bowling ball to accelerate to 6 m/s2

    asked by Nora

  132. chem

    Im not sure how to go about this: Calculate the number of gramms in 0.65 mole of aluminum carbonate?

    asked by gaviota

  133. calculus

    evaluate the limit 5x^(ln5+1)/(ln8x+1)

    asked by Faith

  134. Statistics

    Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 68 percent of students work between ______ and ______ hours per week. Select

    asked by Sarah

  135. English

    "Redskin" was originally a term for

    asked by Joey

  136. math

    use each of the digits 0 1 3 4 5 exactly once to write a decimal subtraction problem.the difference must be the same as one of the decimals in the problem

    asked by joel

  137. Business English

    Which of the following would be the BEST strategy to follow in the opening paragraph of a letter to clients announcing expanded hours. (a) Explain that the results of a recent survey indicatethat a lot of people are unhappy with the current hours. (b)

    asked by Carol

  139. stATS

    the standard deviation of the sampling distribution of the means is ____the standard deviation of the population under study.

    asked by tim

  140. algebra - exponentials

    Pa^t and Pe^rt are two forms of the same exponential function. One would expect to obtain the same answer for f(18) (after finding P and a and P and r). Explain why you may not get the same answer for f(18) in practice.

    asked by Anil

  141. math - another ? - exponentials

    The two formulas f(t) = Pa^t and f(t) = Pe^rt provide two models for the same exponential growth or decay function. How are the exact values of a and r related? (Hint: Find a formula for a as a function of r)

    asked by Anil

  142. Business English

    In which of thefollowing sentences is therefusal iplied rather than directlystated? (a) "We are not hiring anyone at the moment, but thank you for your interest. (b) "You cannot work in the production area because you are under 18 years old." (c) Employees

    asked by Carol

  143. Business English

    A store is designing a new catalog for its fall collection. Which of the following is LEAST likely to increase the store's credibility? (a) Creating a glossy photo layout with a varety of pictures (b) Stating the facts about each product (c) Promising

    asked by Carol

  144. Business English

    Positive roles and actions of individuals that help the group build loyalty, resolve conflicts, and function smoothly include: (a) demonstrating openness and acceptance. (b) taking every opportunityto be the first to speak and insisting on personally

    asked by Carol

  145. college algebra

    Let g(x) = 0.5x + 18. Write the rule for g-1(x). Then, evaluate g-1(x) at x = 20. Enter this result in the space provided.

    asked by brianna

  146. social studies

    what was the shakers formal name? Wasn't it the "Shaking Quakers"?

    asked by anonymous

  147. science

    Please help with this as I can not understand it at all. Imagine you've been shown a seismogram from an earthquake on which you can see the first arrival of P waves, followed some time later by the first arrival of S waves. You work out that the S wave

    asked by Paula

  148. Physics

    A rocket of mass 4.45E+5 kg is in flight. Its thrust is directed at an angle of 51.1° above the horizontal and has a magnitude of 7.64E+6 N. Calculate the magnitude (enter first) and direction of the rocket's acceleration. Give the direction as an angle

    asked by Nick

  150. spanish

    Can you give me a example of what two friends do and don't like written in Spanish in an Essay.

    asked by Shawn

  151. physics

    A 50kg person standing on both feet cover a surface about 13 cm x 12 cm. How much pressure is on the sole of their shoes?

    asked by Brian

  152. math

    If there are exactly 5 times as many children as adults at a show, which of the following cannot be the number of people at the show?

    asked by John

  153. math

    The three stooges are a real pain. When you ask one of them a question, they all answer. Futhermore, one of them always lies, and the other two answer truthfully. I asked them who is the smartest. They replied: Curly: I am not the smartest Moe: Larry is

    asked by Steph

  154. statistics

    A rocket fuel is to contain percent X of a particular chemical. The specification limits for X are 30 to 35%. The manufacturer will make a profit Q(x) on fuel per gallon as follows. Q(x)= 10 cents if 30

    asked by sam

  155. Algebra

    how do i solve this please help 5 < x – 2 < 11

    asked by Jake

  156. earth

    If a person has a weight of 145 lb at sea level, by how much is their weight reduced when flying on an airplane at an altitude of 10700 m?

    asked by Anonymous

  157. English

    Could you say: 1) Nobody is going to take/do (instead of "enroll" (which woul be the best choice?) 2) If they had taken a tent, they wouldn't have had to sleep in a field. Thank you.

    asked by Henry2

  158. accounting

    Interfund Premiums -- Actuarial estimates from previous fiscal year to determine $ necessary to establish a reserve for losses. It was determined that General Fund and water utility should be assessed a 6% fee of total wages/salaries. Pub Safety 5,000,000

    asked by Adrienne

  159. English

    I left out the following sentences. Thank you. 1) We have been seeing each other a lot recently= We have been meeting each other.... 2) She is smelling the perfume of the flowers at the moment. She has been smelling the perfume of the flowers for five

    asked by Henry2

  161. physics

    If a person has a weight of 145 lb at sea level, by how much is their weight reduced when flying on an airplane at an altitude of 10700 m?

    asked by Anonymous

  162. literacy

    what was the fedstats found in virtual ref room

    asked by mike

  163. math

    How do i come up with scenarios for problems like this? -112=7(-5n+4). 2-2(m+6)=5m+5(m+4)

    asked by Lizzy

  164. Business Research

    What is the role of research in the decision to purchase an e-commerce toy company

    asked by Anonymous

  165. science

    what is potential diffrence in details

    asked by suresh

  166. algebra

    What are the two solutions to the equation -0.2^2+12x+11=0? and how do you do them?

    asked by Anonymous

  167. MATHELPPLEASE

    Please explain to me why they are exclusive or not exclusive. Event A is that atleast three of toni's five cousins are female Event B is that atleast three of toni's five cousins are male.

    asked by HM

  168. MATH help

    If a guy speaks spanish AND english.. is it mutually inclusive or exclusive? Probability sense.

    asked by HM

  169. english

    I have to write a short paper on Shakespeare Twelfth Night-Act 5 scene 1 lines 248-262. But what we have to do is to translate those lines into a different "lingo" dialect but I don't even know how to get started. Can someone please help?

    asked by christy

  170. chem

    Im not sure how to go about this: Calculate the number of gramms in 0.65 mole of aluminum carbonate?

    asked by tina

  172. Physics

    A particular magnetic field points west. A proton moved from north to south. What direction is th magnetic force on the proton? Up,down,east or northwest

    asked by Arielle

  173. Europe in the 19th century

    I have to write a paper on the changes of labor relations in the quarter century before WWI. So far I can only think the journeymen and master craftsmen, and how the journeymen doesn't have to depend on the master anymore. What other changes in the labor

    asked by John

  174. Math

    A wooden block that is a rectangular prism is 12 inches long. Melinda cuts the wooden block along its length into 4 cubes. How long is each side of the cube?

    asked by Dina

  175. Physics

    According to Faraday's law a change in flux through a circuit produces an emf. Which of the following does not produce a change in flux? (a) change in magnetic field (b) change resistance (c) change in area (d) change in orientation angle

    asked by Arielle

  176. Physics

    A bar magnet with its south pole down passes through a conducting ring. As viewed from above the ring, in which direction does the current flow? (a) cw (b) ccw (c) no current flows

    asked by Arielle

  177. Physics

    A mchanical analody of the resonance in an RLC circuit is (a) flying off a spinning merry-go-round (b) a growing snow ball rolling down a hill (c) pushing someone in a swing (d) ripples in a pond

    asked by Arielle

  178. Physics

    Transformers are used to increase the voltage produced at power plants. Why is it desirable for the power to be transmitted at high voltage? (a) the the transformer induction will be less resulting in less joule heating (b) then the resistance of the wires

    asked by Arielle

  179. computers

    Which of the following types of memory contain data that cannot be modified by the user? (Points: 5) a. simm b. dimm c. RAM d. ROM is it D

    asked by Julie

  180. computer

    Which of the following types of computers is considered a portable computer? (Points: 5) a. workstation b. mimicomputer c. server d. notebook is it D

    asked by Julie

  181. SUBSTANCE ABUSE COUNSELOR

    SOMEONE WHO'S TAKING PENNFOSTER SUBSTANCE ABUSE COUNSELOR

    asked by lijah

  183. stats

    Determine the standard error of the mean if a random sample of 52 is pulled from a population with µ = 82 and ó = 18. Round your answer to two decimal places

    asked by Anonymous

  184. algebra

    Solve the equations by finding the exact solution. (a) (1)/(2) x - 3 = 3

    asked by Anonymous

  185. computer

    On most Windows systems, where is the file location data stored? (Points: 5) a. Boot sectors b. DAT c. FAT d. Folders is it D

    asked by Julie

  186. psy

    If someone has a negative attitude toward a particular individual or group, for example, what are the potential implications of their behavior toward that individual or group?

    asked by meshelle

  187. ***college algebra***

    Let h(x) = x3/2(x - 7)1/3 and g(x) = 200x3 - 47x2 + 9017x + 3. Utilize this information to find the value of (g o h)(7). I worked it out and came up with the answer 1421313.733.... i feel like this isnt right... please feel free to comment :)

    asked by brianna

  188. math

    R. C. Droid has developed a new computer. He calls it the Droid computer. Mr. Droid has virtually every aspect of his new company well underway except for his sales force. He has not yet hired any salespeople to sell the Droid computer. Mr. Droid believes

    asked by Anonymous

  189. CALCULUS help please

    Evaluate the derivative of the function below at the point (ð/3, 9.301). (Round to three decimal places.) y= (9/x) + ((cosx)^.5)

    asked by Kaamini

  190. English

    Please tell me the meaning of the sentence below: "Everyone but 4 people voted for Menu I." Remember tha we hve two menus to choose from. Thanks.

    asked by James

  191. economic

    pls show me the chart for production possibility curve

    asked by sarah

  192. maths

    matt and ruba each have one coin. The total amount of money is less than 50p. work out the probability that exactly one of the coins is a 10p piece. assume that all possible coins are equally likely. please can you explain i have to know how to do this

    asked by chloe

  194. writing paragraph and sentences

    Hello Sir/Mam, This is what i have prepared for my first assignment, please let me know all my mistakes like grammar, speeling, punctuations,language, sentences and any other mistakes which you think i have made. and also i want to know if i have put the

    asked by niks

  195. english

    what is an appositive phrase?

    asked by megan

  196. Adverbs and other parts of speech

    which one of the following words phrases if the superlative form of an adjective? A.Less B.Slower C.Most active D.more rapidly

    asked by Jennifer

  197. math

    3/9 divided by 7/8

    asked by john

  198. math

    39+42

    asked by jake

  199. Science

    The force of a 0.001 kg penny falling at 70 m/s2

    asked by Nora

  200. Science

    A 0.2 kg falcon hits a mouse with a force of 5 N. What was its acceleration?

    asked by Nora

  201. Science

    A car travelling at 27 m/s2 hits a wall with 48,600 N of force. What was the car's mass?

    asked by Nora

  202. math(advanced functions)

    what are the key features of x/(x^2-3x+2)?

    asked by hi

  203. Business English

    Trevor Collins works in the collections department, and he is very successful at writing professional, effective letters to customers whose accounts are overdue. The human resources department asks to use copies of some of his letters in a training course

    asked by Carol
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