Questions Asked on
November 4, 2014

  1. chemistry

    We only can make ozone layer by adding 3 oxygen atoms or we cannot

    asked by sai
  2. Calculus

    Let f(x) = 2x^{3}+9. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima). 1. f is increasing on the intervals: 2. f is decreasing on the intervals: 3. The relative maxima of f

    asked by Daniel
  3. English

    A nurse attended (a)...... her work place in time.(b)....... all her sincerity she was attending (c)....... the patient but she knew that her effort (d)........ keeping the patient alive might end (e)........ smoke.The doctors of board were shocked

    asked by Rifa
  4. Science

    How many grams of H2SO4 are in 125 mL of a 3.00 M solution of H2SO4?

    asked by Eli
  5. mathematics

    8y+4z=7 6y-8z=41

    asked by sarah jega
  6. Physics

    what are vector quantities?

    asked by Wendy
  7. Science

    what is the concentration (M) of a MgCl2 solution prepared by dissolving 7.2 g of MgCl2 in sufficient water to give 362 mL of solution?

    asked by Eli
  8. soc120

    Which of the following is a claim that utilitarian might use to argue that prayer should not be allowed in school? (Points : 1)

    asked by Tiffany
  9. Science

    How many grams of CH3SH must be added to water to prepare 410mL of a solution that is 2.5 M CH3SH?

    asked by Eli
  10. English

    Change the sentences as directed in brackets: 1.Proper emphasis should be given on their study.(active voice) 2.The fox was very thirsty and was looking for water.(exclamatory sentence) 3.It could not find any source of water.(negative sentence) 4.It

    asked by Rifa
  11. organic chemistry laboratory

    hi, im not sure if all my answers are correct especially number 5. could any one check and tell me? please and thank you. 1. Why is it important to have clean test tubes before running a test? Before which tests should acetone not be used to clean the test

    asked by Niah
  12. English

    A nurse attended (a)...... her work place in time.(b)....... all her sincerity she was attending (c)....... the patient but she knew that her effort (d)........ keeping the patient alive might end (e)........ smoke.The doctors of board were shocked

    asked by Rifa
  13. science

    Using the systematic method and information in the Appendices F and J (note that log value is given in Appendix J), determine [SCN-], [Hg2+], and [HgSCN+] at equilibrium when Hg(SCN)2(s) is dissolved in water.

    asked by chris
  14. English

    1. You will soon be friends with him. 2. You will soon make friends with him. -------------- Are both grammatical? Is there any difference between them?

    asked by rfvv
  15. English

    1. Some cells change chemical energy into electric energy. 2. Some cells change chemical energy into electrical energy. ----------------- Do we have to use electric or electrical?

    asked by rfvv
  16. Calculus

    1. On what interval is the function f(x)=x^3-4x^2+5x concave upward? 2. For what values of x dies the graph of f(x)=2x^3-3x^2-6x+87 have a horizontal tangent? Is there no solution because the equation can't be factored? 3. At what point on the curve

    asked by Anonymous
  17. algebra

    Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original

    asked by nimal
  18. chemistry

    The pH difference across the membrane of a glass electrode is 2.49. How much voltage is generated by the pH gradient at: 25C? 37C?

    asked by anyonymous
  19. Calculus

    Given f(2)=5, f'(2)=-1 find the value of d/dx[1/sqrt(f(2x))] when x=1

    asked by Anonymous
  20. geometry

    a rectangular piece of land measures 0.7 km by 0.5km each side is to be fenced with 4rows of wires.What is the length of wire needed?

    asked by Anonymous
  21. Math

    1. If one wishes to accumulate a 30,000-fund in 5 years, how much should he deposit now at 18% compounded quarterly? 2. If a bank offers a rate of 4.5% compounded semiannually, how much should you deposit to accumulate 50,000 in 15 years 3. Suppose that a

    asked by Brianne
  22. Algebra HELP!

    On a ruler that measures both metric and English units, we see that 1 m = 39.37 in. This implies that 2 m = 78.74 in. Use this information to write an equation to convert x inches to y meters.

    asked by KG
  23. riga technical university

    At what concentration of silver electrolyte the potential of the silver elevtrode will be greater than 0.1V of the silver electrode standard potential?

    asked by brian
  24. physics

    a50g ball is hit to roll by a force of 100N.it rolls over 20m.what was its initial speed

    asked by Anonymous
  25. English

    1. Everyone wants to be in good health. 2. Everyone wants to be very healthy. --------------------- Does #1 mean #2? What other expressions can we use instead of Sentence 1?

    asked by rfvv
  26. algebra

    Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original

    asked by nimal
  27. English

    happy123 at hmail dot com --------------- How do you read this? happy one two three at h mail dot com (is this right?)

    asked by rfvv
  28. English

    But they are not the only helper animals. There are also guide horses. ------------------ In the second sentence, what is the meaning of 'guide'?

    asked by rfvv
  29. Social Science

    Essay on "The Arabs made Islam one of the most powerful force in Asia". Please help ASAP.

    asked by Goku
  30. computer literacy

    ____________ is an application program included with Windows that allows the contents of the computer, the hierarchy of folders on the computer, and the files and folders in each folder to be viewed.

    asked by tlotlo
  31. physics

    Calculate the PRP, PRF, PD, DF, SPL, wavelength, period, and Axial Resolution if a 2 cycle pulse emitted from a 10 MHz transducer if the echo time received was 0.26 ms in soft tissue.

    asked by Elizabeth
  32. Algebra please help answer

    Gina's art teacher mixes 9 pints of yellow paint with 6 pints of blue paint to create green paint. Gina mixes 4 pints of yellow paint with 3 pints of blue paint. Did Gina use the same ratio of yellow paint to blue paint instructed by her teacher? Explain.

    asked by Liz
  33. Algebra please help

    A grocery store sells snacks by weight. A six ounce bag of mixed nuts costs $3.60. Predict the cost of a two ounce bag. Please help answer

    asked by Liz
  34. Algebra 1 please help

    The Martin family's truck gets an average of 25 miles per gallon. Predict how many miles they can use driving using 7 gallons of gas.

    asked by Step hie
  35. Algebra 1 please help answer

    A store has apples on sale for$3.00 for 2 pounds. How many pounds of apples can you buy for $9? If an apple is approximately 5 ounces, how many apples can you buy for $9? Explain both questions. Thanks

    asked by Iana
  36. English

    I have to make one sentence using catch, caught and had caught.... Is this correct Dad caught the perch, and he will try to catch a walleye like James had caught.

    asked by Sweet Pea
  37. math

    Nitya and satya have some marbles with them. Nitya says to Satya, "If you give one marble to me, we will have equal number of marbles." Satya says to Nitya," If you give me one marble, I will have twice the number of marbles you have". How many marbles

    asked by nimal
  38. maths

    one card is taken from the bag write down all the possible outcomrs of the event

    asked by elizabeth
  39. Math Help

    The New York Times study of homes reported average house size in 2001 to be 2,428 square feet, compared with an average of 2,150 square feet in 1987. Suppose a study of homes over the years recorded the year from 1987 to the present, as well as the size of

    asked by Lori
  40. math

    the shadow of a pole measured from the foot of the pole is 2.8 m long if the distance form the tip of the shadow from the tip of the pole is 10.5 m then find the length of the pole.

    asked by Zahoor
  41. Algebra

    Given the functions f(x)=x+5/3 and g(x)=1/f^-1(x)+1, find the value of g(3). The first step would first be to find the inverse of x+1, the denominator of the fraction. I think the inverse would be 1-x. And now we have 1/1-x so we can just plu in 3. Right?

    asked by Trish Goal
  42. algebra

    In a change jar, Tom has nickels and dimes. The number of nickels is two times the number of dimes and the total amount of money in the jar is $1.20. How many dimes are in the jar?

    asked by joe
  43. Physics

    "Being an athlete takes more brains than brawn. It takes time and effort. It takes endurance and commitment. It takes an athlete who can stay in the air for 2.5 seconds while shooting a goal; an athlete who knows which laws of physics keep him there."

    asked by Celine
  44. physics

    A 1.2 kg tether ball is hit so that it circles the pole with an angular speed of 3 radians/s. The length of the tether is 2m. What is the angle measured from the tether to the vertical pole?

    asked by Hassan
  45. Physics

    An aircraft moving horizontally at a speed of 80m/s and at a height of 500m releases a bomb to destroy a tank moving away from it. If the bomb is released when the tank is at a horizontal distance of 600m from the aircraft, find the speed of the tank.

    asked by Celine
  46. math

    Your friend says that 14.5% is equivalent to the decimal 14.5. Explain why your friend is incorrect by comparing the fractional equivalents of 14.5% and 14.5.

    asked by zagra
  47. Math

    How do you find decreasing intervals of 6x^3-63x^2-144x-2? I found my increasing intervals from placing the derivatives i just can't seem to solve for the decrease

    asked by Alessandra
  48. Algebr

    The values of a function f(x) are given in the table below: x=1, f(x)=3 x=2, f(x)=13 x=3. f(x)=8 x=5,f(x)=1 x=8,f(x)=0 x=13, f(x)=5 If f^-1 exists, what is f^-1((f^-1(5)+f^-1(13))/ f^-1(1))? I am not quite sure how to do this.

    asked by Trish Goal
  49. Calculus please help me

    f(x) = \frac{ x^3 }{ x^2 - 25 } defined on the interval [ -18, 18 ]. Enter points, such as inflection points in ascending order, i.e. smallest x values first. Enter intervals in ascending order also. The function f(x) has vertical asympototes at (? )and

    asked by Anonymous
  50. Science

    Susie decides to pull on a 1.5kg toy (horizontally) with a force of 25N. Friction acts against the toy with a force of 6n. What is the acceleration of the toy?

    asked by Paula
  51. math

    Liz,John and Kim had some amount of money.Liz gives half of her amount to John, who then gives half of what he now has to Kim. Kim gives half of what she has now to Liz, who, now has exactly what she started with. If the sum of John's initial amount and

    asked by Suzanne
  52. physics

    Suppose a bimetallic strip is constructed of copper and steel strips of thickness 1.33 mm and length 23.5 mm, and the temperature of the strip is reduced by 4.50 K. If the strip is 23.5 mm long, how far is the maximum deviation of the strip from the

    asked by Anonymous
  53. calculus

    A manufacturer of hospital supplies has a uniform annual demand for 80,000 boxes of bandages. It costs $10 to store one box of bandages for one year and $160 to set up the plant for prduction. Haw many times a year should the company produce boxes of

    asked by Anonymous
  54. Statistical

    A botany student counted 11 blades of grass in one square centimeter of lawn and measured the lawn as a rectangle 61 m by 31 m. She reported that there were 208,010,000 blades of grass in the lawn. The precision of her conclusion: the answer is A.

    asked by Michael
  55. english 4

    Instructions within procedural texts should be phrased as ­­­­__

    asked by Anonymous
  56. math

    find three consecutive odd integers such that the sum of the first and the second is 201 less the square of the third

    asked by Jax
  57. Science Question

    Richard has to move a 45.5kg couch in order to vacuum behind it. He is able to push against it with a force of 85.3N. He does unfortunately have to work against friction, but thankfully the coefficient of friction is very small 0.082 since it is on pads

    asked by Dave
  58. Math Gr 12

    Use a calculator to determine angle x, rounded to the nearest degree. csc x = 1.25

    asked by Vikki
  59. Math, Please Help! I don't understand!

    I need help because I don't understand how to solve this equation. 37. x/a - 1 = y/b for x So... does it mean solve for x? 39. V = 1/3 * pi * radius^2 * h for h So... does it mean solve for h? As you can see, I am really confused. Please help.

    asked by Alexandra
  60. Organic Chemisty

    How to identify the difference between major and minor products using Markovnikov' rule

    asked by Deanne
  61. Mathematics

    Sum of radii of two spherical ball is 22 cm and the diff of their volumes is 3050 2/3. Find radii. In this question if i r+R= 22 (eq 1)and Pi(r2-R2)=3050 2/3 (eq 2) and subs value of r from eq 1 in eq 2; my answer wont match with textbook. What should i

    asked by Esha
  62. algebra

    Assuming that none of the solutions are undefined,simplify each of the following. 23. A^2mB^m+1/A^mB 24.(A^2B^3/c)^0

    asked by Janet
  63. English

    To be grammatically correct, should the following sentence end with an exclamation or question mark? How nice it is !/?

    asked by Anonymous
  64. Math

    Help, I need help on this.. For questions 3-5, use the recipe below. (I'll try and make it..) ----------------------- |Ingredients|Amount| |------------------- |Orange Juice| 4 3/4 cups| |Grape juice| 6 1/2 cups| | Cherry Juice 2 1/8 cups| |Club soda| 1

    asked by Lexi
  65. Math

    Determine the exact radian measure for each angle. 40 degrees.

    asked by Jessica
  66. Math

    Suppose 360 nursing students took a certification test that is worth 140 points. The five-number summary for the scores is shown here. min. value = 68 Q1 = 110 median = 125 Q3 = 130 max. value = 138 About how many students had a score of 130 or less?

    asked by Monkey55
  67. geometry

    List the set of all even numbers between 2 and 10, inclusive.

    asked by raina
  68. physics

    An aluminum vessel with a volume capacity of 510 cm3 is filled with water to the brim at 20.0°C. The vessel and contents are heated heated to 49.9°C. During the heating process, will the water spill over the top (in this case the answer would be

    asked by Orcun
  69. Chemistry

    How many mL of 0.122 M Na2CO3 would be needed to precipitate all of the copper ions in 23.7 mL of 0.167 M CuSO4? How many grams of CuCO3 could be recovered?

    asked by Shelby
  70. English

    Both of the girls insisted that they try to reach the end of the trail by themselves. I know they and themselves are pronouns. I know both can be used as a pronoun, but I am thinking no here. Am I right?

    asked by Anonymous
  71. find perimeter

    find perimeter. assume all angles are right angles. 4ft.,6ft, 4ft., 4ft, 9ft., 9ft.,10

    asked by jan
  72. Physics

    Calculate the ideal gas constant using the moles of air, temperature of air and slope of the air vs. 1/Pressure graph. Moles of air = 4.89*10^-4 Temperature of air = 23C Slope = 2317

    asked by C-Nix
  73. Physics

    A 8.9 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 12.1 N. Find the speed of the block after it has moved 3.3 m. Answer in units of m/s

    asked by Mckenna
  74. algebra

    Write the equation of the line that is parallel to the given line and passed through the given point. Y=3x-8; (0,2)

    asked by Erica
  75. chemistry

    In a titration, NaOH was added to a burette. The initial reading was 1.2 ml. At the end of the titration, the final reading was 24.8 ml. What was the volume of NaOH that was added?

    asked by zakk
  76. physics

    in passing theough a wooden block 8cm thick the velocity of a beullet reduces from 700m/s to 300 m/s if the mass of the bullet is 10g find the average resitance to penetrate ?

    asked by zak
  77. Calculus

    Find the point on the line 6 x + 4 y - 1 =0 which is closest to the point ( 0, -1 ).

    asked by Alessandra
  78. Calculus

    A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y= 6-x^2. What are the dimensions of such a rectangle with the greatest possible area?

    asked by Alessandra
  79. Physics

    What is the momentum (in kg m/s) of a 131- kg football player running at a top speed of 9.9 m/s? What is the momentum of a 9.32- g rifle bullet traveling at 618 m/s

    asked by Laura
  80. Physics

    A 0.145- kg baseball with an initial speed of 27 m/s rebounds with a speed of 32 m/s after being struck with a bat. If the duration of contact between ball and bat was 1.5 ms, what was the magnitude of the average force between ball and bat?

    asked by Alex
  81. Algebra

    Write an equation of the line that is parallel t the given line and passes through the given point. 1. y=3x-8;(0,2) 2. y=-x; (0,6)

    asked by ER
  82. Chemistry

    How do we use 2 indicators to confirm the pH of a solution?

    asked by John
  83. Physics

    A ball of mass 0.60 kg is fired with velocity 100 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to

    asked by Alex
  84. English

    Do not take too many chances when you drive at night. I know too is an adverb modifying many an adjective I know when is an adverb. Does it modify drive?

    asked by Anonymous
  85. chem

    How many grams of the adipic acid (C6H10O4) could form from the reaction of 15.00 g of cyclohexane (C6H12) with the 25.00 g of oxygen? Will the formula be... 2O2 + C6H12 ---> C6H10O4

    asked by michelle
  86. English

    Another I am not quite sure of. Never swim alone at night. I know never is an adverb modifying swim. I think alone is an adverb also. Would it modify swim too?

    asked by Anonymous
  87. Math

    Explain why (2,-3) would be the vertex of the function y=-3(x-2)^2-3? Please and thank you!

    asked by Alex
  88. chemistry

    A buffer with a pH of 3.93 contains 0.17 M of sodium benzoate and 0.32 M of benzoic acid. What is the concentration of [H ] in the solution after the addition of 0.054 mol of HCl to a final volume of 1.5 L?

    asked by Kira
  89. english 10

    Prompt A: compare and contrast the topics and themes of writers from the america and european writers. Promt B: Think about all the selections you've read thus far by european writers. examine one element that the selection have in common, not including

    asked by Anonymous
  90. statistics

    I this binomial? or No? A gumball machine contains 25 gumballs - 9 red, 6 blue, 7 green and 3 yellow. You buy five gumballs from the machine. X = number of green gumballs you get

    asked by c
  91. Physics

    A 1100- kg car collides with a 1500- kg car that was initially at rest at the origin of an x-y coordinate system. After the collision, the lighter car moves at 20.0 km/h in a direction of 35 o with respect to the positive x axis. The heavier car moves at

    asked by Alex
  92. Physics

    A solid sphere of mass 2.07kg rolls up an incline with an inclination angle of 24.40°. At the bottom of the incline, the center of mass of the sphere has a translational speed of 2.80m/s. a) What is in J, the linear kinetic energy of the sphere at the

    asked by Serena
  93. English

    Seeing snow on the street in the middle of April was odd. on the street--Prepositional phrase in the middle of April ----a prepositional phrase or is the latter 2 prepositional phrases?

    asked by Anonymous
  94. math

    irv has a bike store. he has 32 bikes and also some tricycles, tandem bikes and unicycles. the unicycles and tandem bikes must be the same. there are 57 helmets and 115 wheels. name the bikes.

    asked by shoshona
  95. stats

    A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a standard deviation of 50 seconds.

    asked by elenore
  96. physics

    Two masses are connected by a light string passing over a frictionless pulley as shown on Figure. The M2= 6.1 kg mass is released from rest at height h = 2.8 m . We are given that M1=2.7 kg and I, the moment of inertia of the pulley is I = 0.198 kg m2 and

    asked by Serena
  97. physics

    The average car today has a mass of 1100 kg, and when accelerating from rest, covers 0.25 miles in 15 seconds. Each rim and tire together has a diameter of 46 cm and a mass of 9.1kg. If we agree the rim and tire have the shape of a solid disk that rotates

    asked by help please
  98. Statistics

    Daily water intake (including water used in drinks such as coffee, tea and juice) for Canadian adults follows a normal distribution with mean 1.86 litres and standard deviation 0.29 litres. (a) Can you calculate the probability that the mean daily water

    asked by Mel
  99. Statistics

    Service times for customers at a post office follow some right-skewed distribution with mean 2.91 minutes and standard deviation 1.74 minutes. (a) Can you calculate the probability that the average service time for the next two customers is less than 2.64

    asked by Mel
  100. physics

    Suppose a bimetallic strip is constructed of copper and steel strips of thickness 1.23 mm and length 22.3 mm, and the temperature of the strip is reduced by 6.30 K. Determine the radius of curvature of the cooled strip (the radius of curvature of the

    asked by Alihan
  101. Algebra

    Let f(x)=px+q, where p and q are real numbers. Find p+q if f(f(f(x)))=8x+21. Thank you. I got this p^3 +p^2q + pq + q = 29 Would you try to solve that? if yes, then how?

    asked by Trish Goal
  102. Algebra

    The function f(x,y) accepts an ordered pair as input and gives another ordered pair as output. It is defined according to the following rules: If x>4, f(x,y)=(x-4,y). If x4, f(x,y)=(x,y-4). Otherwise, f(x,y)=(x+5,y+6). A robot starts by moving to the point

    asked by Trish Goal
  103. physics

    A block of mass m = 1.02 kg is suspended above the ground at a height h = 14.4 m by a spool with two arms. The spool-with- arms arrangement is a combination of a solid uniform cylinder of mass M = 3.43 kg and radius R = 0.440 m, and two rods, each of

    asked by Lauren
  104. Physical Education 8A

    Will someone please check my answers? I starred my answers. 1. A person who does not recognize the signs of mental illness may not know he needs help. A. True* B. False 2. Which of the following is not a sign of psychotherapy? A. insight B. cognitive* C.

    asked by Please Check Answers
  105. Math, Please Help! I don't understand!

    Hi guys, please help me!1 I am having a tough time understanding this equation. Best answer goes to the person who shows there work. So... here is the equation... At the half time show, a marching band marched in formation. The lead drummer started at the

    asked by Bianca
  106. Exam week 4

    The relativist would agree with which statement about stem cell research?

    asked by Nina
  107. math

    Rosie had a necklace 2/3 beads were red, 14/21 beads wet blue how many are white is the and 3/21

    asked by Anonymous
  108. Physics- linear acceleration

    A wagon, starting from rest has a linear acceleration in the positive x direction of 0.3 m/s2. For the next 19 seconds, the wheels roll without slipping. The radius of each wheel is 37.4 cm. After this time, how many radians has each wheel rotated through?

    asked by Christopher Singh
  109. physics

    A one-piece cylinder is shaped as in the Figure, with a core section protruding from the larger drum. The cylinder is free to rotate around the central axis shown in the drawing. A rope wrapped around the drum, of radius 2.70 m, exerts a force F1 to the

    asked by Misaki
  110. Math

    Twelve boxes of pencils cost $16. Write an equation that could be used to find the cost per box.

    asked by Amy
  111. math

    Explain how you can be sure that all rates you have written on a double number line are correct.

    asked by anonymus
  112. working with parents and families

    The responsibility for a parent to become involved in a center's activities  A. lies primarily with the parent. B. can't be assigned to either the parent or the caregiver. C. lies primarily with the caregiver. D. is shared by the parent and the child. 

    asked by Amanda
  113. English

    1. Our lives would be different without energy. 2. Our lives would be different if we didn't have energy. 3. Our lives would be different if there were no energy. ---------------------------- Does #1 mean #2 and #3? Are they the same in meaning and

    asked by rfvv
  114. Chemistry

    Information: Original temp of HCl: 23.3C of NaOH: 23.8C Final temp of the mixture: 36.7C I am to find qH2O (assume 50 mL of solution and use average density of 1.02 g/mL) but I'm a bit lost. I also need to find /\H and /\H per mole of H+a and OH- ions

    asked by Aishya
  115. physics

    A particle undergoes three successive displacement in a plane as follows 4m southwest, 5m east, 6m in a direction 60 degree north of east (a) draw an apropraite vector diagram to represcent the displacement (b) detarmine the displacement that would be

    asked by David
  116. Math

    There are nine oak trees in a park. The oak trees make up 45% of all the trees in the park. How many trees are in the park?

    asked by Amy
  117. RIGHT TRIANGLE TRIG

    a kite is being flown 150 yards of string. the kite has an angle of elevation with the ground 65 degrees. how high above the ground is the kite. I DON'T KNOW HOW TO SET UP THE PROBLEM

    asked by Albert
  118. MGMT

    How might a manager use leading by example to help develop ethical behavior in his or her unit?

    asked by Anonymous
  119. math

    Sandy measures the length of a hockey stick. she says it it 4 units long. what unit did she use? A. cubes B. inches C. feet D. yards

    asked by laura
  120. Math

    There are 20 students in Mark's homeroom class. Ten percent of the students in Mark's home room class are in art class. How many students are in art class?

    asked by Amy
  121. Algebra 2

    A path of uniform width surrounds a rectangular garden that is 5m wide and 12m long. The area of the path is 168m^2. Find the width of the path.

    asked by Taylor
  122. data analysis w/spreadsh w/lab

    Please explain what the outcome of "" means

    asked by linda
  123. English

    I think I am brain tired, LOL! In the following sentence. The boy's baseball glove needed more padding. I know The boy's baseball are all adjectives. Do they all modify glove?

    asked by Karen
  124. chem

    Fe + O2--->Fe2O3 How many grams of iron are required to convert 80 mL of oxygen at STP?

    asked by jhon
  125. chem

    Calculate the total pressure in the flask after all of the oxygen has been removed from the air in the flask. Assume that the temperature is 25¡ÆC, the initial barometric pressure is 760 torr and that air is 21% oxygen by volume.

    asked by james
  126. Chemistry pretty urgent!!!!!!!

    Chemical bonding question! The partial Lewis structure that follows (Figure 1) is for a hydrocarbon molecule. In the full Lewis structure, each carbon atom satisfies the octet rule, and there are no unshared electron pairs in the molecule. The

    asked by G-Dogg
  127. physics

    Find the height of a cliff if the 87.6 kg cliff diver hits the water at 15.5 m/s.

    asked by Natalie
  128. working with parents and families

    The caregiver uses a _______ for anticipating and dealing with the concerns of parents when they've enrolled or are enrolling a child in the caregiver's program.  A. parent conference B. parent handbook C. parent discussion group D. newsletter  The

    asked by Amanda
  129. working with parents and families

    The tone of the parent-caregiver relationship is set by the A. home visit. B. initial facility visit. C. brief chats at arrival and departure times each day. D. child's first day.  C is the wrong answer I think the answer is B

    asked by Amanda
  130. physics-distance

    Here's a stationary bike. If you pedal such that the front wheel rotates at 6.9 rad/s, and that wheel's radius is half a meter, how far would you have gone in 35 minutes, if the bike where a non-stationary bike? (Assume a constant speed of rotation) I am

    asked by Chris
  131. Urgent Science Question!

    A 921kg sports car is moving rightward with a speed of 29.0m/s. The driver suddenly slams on the brakes, causing a 8347N resistive net force and the car skids to a stop. Determine the time it takes to stop the car.

    asked by Tina
  132. Physics

    A ball of mass 0.60 kg is fired with velocity 100 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to

    asked by Alex
  133. physics

    A 1100- kg car collides with a 1500- kg car that was initially at rest at the origin of an x-y coordinate system. After the collision, the lighter car moves at 20.0 km/h in a direction of 35 o with respect to the positive x axis. The heavier car moves at

    asked by Alex
  134. Science (How Do I Do This?)

    A car skids to a stop at a traffic light, leaving behind a 8.25m skid mark as it comes to a rest. Assuming that the car is travelling at 14.5m/s and only the friction from the tires on the roadway stop the vehicle. Find the coefficient of friction

    asked by Fiona
  135. math

    integral of y^3/(y^4 +1) dy I don't get how you get (1/4) ln(y^4 +1) out of this. I thought you would do the quotient rule. but is that the same for integrals as it is the derivatice? help!

    asked by sam
  136. Chemistry

    A 1.516 M solution is made by dissolving 1.570 g of the compound in 0.2238 mol of water. Determine the molar mass and apparent molecular formula of the compound.

    asked by Anonymous
  137. MATH

    I NEED HELP WITH A QUESTION MARK COUNTS HE HAS SAVED IN HIS JAR. WHAT IS THE TOTAL AMOUNT OF HIS SAVING

    asked by MARKIYAHUNTER
  138. math

    on a sunny day a 36 inch yard stick casts a 21 inch shadow how tall is the building whose shadow is 168 feet

    asked by matthew barroso
  139. chemistry

    How many atoms of oxygen are there in 5.00g of copper(II) sulfate pentahydrate?

    asked by Bob
  140. math

    (-4/5)-6=-14

    asked by alex
  141. algebra 2

    1. Part A.) For the f(x) = 5x + 8 and g(x) = x – 3. Calculate (f o g)(x) Part B.) f(x) = 3x + 5 and g(x) = x². Calculate (f o g)(-3)

    asked by katelynne
  142. English

    Does anyone know an advertisement that uses Name Calling

    asked by M
  143. Science Physics

    How many Btu of heat must be added to 1200 lb of copper to raise its temperature from 100°F to 450°F -specific heat for copper is 0.092-

    asked by Justin
  144. Physics

    A wheel is rotating freely with an angular speed of 4840rad/s on a shaft whose moment of inertia is negligible. A second wheel, initially at rest and with 8 times the rotational inertia of the first is suddenly coupled to the same shaft. a) What is the

    asked by Misaki
  145. English

    If he had not worked hard, he would never have become a success. Looking for dependent clauses To me these both song dependent that they both need the other. Am I wrong?

    asked by Anonymous
  146. English

    Does this count as an Emotional Words advertisement? Nike The Ultimate Quick Fix The Shoes Word If you do

    asked by M
  147. Math!!

    3.4t+19.36=-10.22

    asked by Christine
  148. Calculus

    Use Newton's method with the specified initial approximation x1 to find x3, the third approximation to the root of the given equation. (Round your answer to four decimal places.) 1/3x^3 + 1/2x^2 + 8 = 0, x1 = −3 I got -3.4808, but it's wrong. Help?

    asked by Benny
  149. math

    If there are 15 minivans out of 42 cars how many minivans are there in 150 cars

    asked by Anonymous
  150. Science

    Choose if this relationship is Predation, Competition, Commensalism, Mutualism, Parasitism, Producer/Consumer Relationship 1 : This bee is feeding on the nectar from this flower while at the same time collecting polent o transfer to different flower. What

    asked by M
  151. Science

    Zoysia is a type of grass. It uses lighjt energy to make food. Grasshoppers feed upon zoysia for energy. What type of relationshipe xists between zoysia and grasshoppers? Is it Mutualism? Mutualism is when both organisms benefit

    asked by M
  152. Science

    Choose if this relationship is Predation, Competition, Commensalism, Mutualism, Parasitism, Producer/Consumer This tomato hornworm is covered with cocoons depositied by wasps. The alrvae of the waspa will feed on the worm and eventually cause its death.

    asked by M
  153. Science

    Choose if this relationship is Predation, Competition, Commensalism, Mutualism, Parasitism, Producer/Consumer The egret is a bird that follows herds of cattle in order to catch and eats infects that are stirred up as the cattle move around. What type of

    asked by M
  154. Chemistry

    What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.010 M CH3CO2Na? Assume the volumes of the solution are additive and that Ka = 1.8 x 10-5 for CH3CO2H. 4. How is this solved?

    asked by KJ
  155. (math) step function

    Draw a graph for the function f(x)=2*⌈x⌉ With the domain -2

    asked by Bagel
  156. Mathematics

    Functions f.and.g are.define.by F : x 9+x G : x 3x-2

    asked by Orlando
  157. Math

    Brett and Jim sign up for Memorial Day race in their town. There are two different events, a 5 kilometers and a 10 kilometers. Brett signed for 5 kilometers and Jim signed for 10 kilometers. Use thermometers to indicate when both Brett and Jim have

    asked by Anonymous
  158. stats

    A research firm conducted a survey to determine the mean amount people spend at a popular coffee shop during a week. They found the amounts spent per week followed a normal distribution, with a population standard deviation of $4. A sample of 49 customers

    asked by Anonymous
  159. Math

    300 kilometers, 180 kilometers and 200 kilometers represents the trips that ms axler took in her job this week. How many kilometers had ms axler traveled when she was at the one third point in each trip? Explain your reasoning

    asked by Anonymous
  160. Chemistry

    2 moles of ideal gas at 300K, initial volume 25 L, are compressed under an external pressure at 3600 torr. Assuming the temp and the internal energy of gas do not change, what is the entropy change of the gas? (Assume the heat flow is reversible)

    asked by Jordan
  161. English

    I go. Is this a dependent clause

    asked by Jarad
  162. geometry

    If you are standing 22 feet straight from a tree and you look at the top of the tree with a distance of 33 feet how tall would the tree be?

    asked by Anonymous
  163. Chemistry

    How many resonance structures do these following acids have? H2CO3-carbonic acid H3PO4-phosphoric acid H2SO4-sulfuric acid HNO3-nitric acid CH3COOH- acetic acid CH2ClCOOH- chloroacetic acid CHCl2COOH- dichloroacetic acid CCl3COOH- trichloroacetic acid

    asked by Joseph
  164. chemistry

    Draw one of the Lewis structure of the N2O5. In each case one oxygen bridges the nitrogens (N-O-N single bond) and 2 other oxygens are bonded to each N. How many equivalent resonance structures are there that satisfy the octet rule and where O makes at

    asked by john
  165. Maths

    A salesperson earns a straight commission of 2.5% on the gross value of products sold. For what gross value of products would the salesperson earn £200?

    asked by Saikat
  166. chemistry

    Draw the dominant Lewis structure for NO2+. Note, that this ion is isoelectronic with CO2. How many double bonds does this resonance structures have?

    asked by john
  167. Chem31

    Using the systematic method and information in the Appendices F and J (note that log value is given in Appendix J), determine [SCN-], [Hg2+], and [HgSCN+] at equilibrium when Hg(SCN)2(s) is dissolved in water. Be sure to show all steps using the systematic

    asked by Anonymous
  168. English

    I think I am getting it A few remained. Ok few would be subject and remained the verb. Am I right?

    asked by Jarad
  169. physics

    A team of sled rides has a mass of 180 kg. If they have 8,000 J of kinetic energy at the bottom of the hill, how tall was the hill they just tackled?

    asked by Natalie
  170. statistics

    The survival rate during a risky operation for patients with no other hope of survival is 81%. What is the probability that exactly four of the next five patients survive this operation?

    asked by kalia
  171. physics

    Bobo jumps out of a plane 2,000 m in the air. If Bobo has a mass of 100 kg, how much kinetic energy will he have after falling for 200 m? Assume no air resistance.

    asked by Natalie
  172. statistics

    (1) The director of a health club conducted a survey and found that 23% of members used only the pool for workouts. Based on this information, what is the probability that for a random sample of 10 members, 4 used only the pool for workouts? Round your

    asked by kalia
  173. physics

    How fast will a roller coaster, with a mass of 1200 kg, be moving at the bottom of an 18 meter tall hill?

    asked by Natalie
  174. physics

    Tony Hawk skates down a ramp. If he is moving at 5.4 m/s at the bottom of the ramp and has a mass of 82 kg, how tall was the ramp?

    asked by Natalie
  175. English

    All of the following are true special predicates except. A. A compound predicate is one that is passive. B. A predicate can have direct or indirect object. C.When a predicate is passive ,the subject is being acted upon rather an acting. D. A predicate may

    asked by Michelle
  176. statistics

    A couple considering a mortgage of $100,000 have a choice of loans. One loan is an 8% loan for 20 years, and the other loan is at 8% for 30 years. Find the amount of interest that the couple can save by choosing the 20-year loan.

    asked by Rick
  177. math

    1.-5+9 2.9(-2) 3.40/-20

    asked by minecraft
  178. physics

    Rocket-powered sleds are been used to test the responses of humans to acceleration. Start- ing from rest, one sled can reach a speed of 510 m/s in 2.37 s and can be brought to a stop again in 3.15 s. Find the acceleration of the sled while ac- celerating.

    asked by help
  179. Physics

    A vector is directed at an angle tangent above the +x axis, pointing into the first quadrant. If the x component of this vector is 10 m, the magnitude of the vector is?

    asked by John
  180. Math

    1/3 multiply 300

    asked by Anonymous
  181. calc 3

    1. Evaluate the given integral by making an appropriate change of variables, where R is the region in the first quadrant bounded by the ellipse 36x^2+25y^2=1. L= double integral R (4sin(144x^2+100y^2) dA. 2. Use the given transformation to evaluate the

    asked by lala
  182. Social Studies

    What are some problems that may come when the National Dream Act is passed.

    asked by Lilly
  183. English

    If it rains we shall postpone the picnic. If it rains is a dependent clause we shall postpone the picnic is independent. I say to put comma between rains and we, Correct?

    asked by Anonymous
  184. 5th grade math

    a company shows profits of $78020 the company wants to divide one quarter of the profits evenly among 47 emplpoyees how much money will each employee receive? how do I divide $78020 by one quarter?

    asked by Anonymous
  185. English

    A prepositional phrases include A. A preposition as about or above. B.an object of the preposition that is a noun or pronoun. C. any modifiers of the object of the preposition. d. I am think A

    asked by Michelle
  186. English

    All of the following are true special predicates except. A. A compound predicate is one that is passive. B. A predicate can have direct or indirect object. C.When a predicate is passive ,the subject is being acted upon rather an acting. D. A predicate may

    asked by Michelle
  187. Precalculus

    e^2x-1=e^4 using one to one property?

    asked by bob23
  188. Algebra

    Find the real zeros of f and the x-intercepts of the graph of f. (Enter your answers as a comma-separated list. Separate multiple ordered pairs with commas.) f(x) = −x2 + 6x + 16

    asked by Patty
  189. sixth grade math

    Wendell is making punch for a party. The recipe he using says 4 cups pineapple juice, 8 cups orange juice, and 12 cups lemon lime juice to make 18 servings. A. If he makes 108 cups of punch, how many cups of each ingredient will he use? 27 cups pineapple

    asked by Stephon
  190. Math

    Carpet costs $16 a square foot. A rectangular floor is 16 feet long by 14 feet wide. How much would it cost to carpet the floor?

    asked by Salae Martin
  191. Algebra

    A veterinarian uses 300 feet of chain-link fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, as shown in the figure. (a) Write the width w as a

    asked by Kimberly
  192. English

    Which of the following is the best version of a thesis statement about charter schools? a. A charter school is a tax supported established by a charter between a school board and outside group of teachers or parents. b.A charter school operates without

    asked by Michelle
  193. chemistry

    0.688 g of antacid was treated with 50.00 mL of 0.100 M HCl. The excess acid required 4.21 mL of 1.200 M NaOH for back titration. What is the neutralizing power of this antacid expressed as mmol(millimoles) of HCl per gram of antacid?

    asked by boomer
  194. calculus

    the position of a particle moving along a coordinate line is s=√(1+4t) , with s in metres and t in seconds. Find the particle's velocity and acceleration at t=6 sec

    asked by zizi
  195. Technology for Biobased Products

    QA.A bio-PDO production process will also produce microbial biomass. A huge surplus biomass of roughly 10% of the PDO mass should be expected. A good use of this microbial biomass could be food of feed. Which organism properties disqualify their use in

    asked by Ann
  196. algebra

    if there are 96 calories in a 3/4 cup serving. How many calories are in 5 cups? How do you do the math?

    asked by dara
  197. physics

    You are loading a refrigerator weighing 2250 N onto a truck, using a wheeled cart. The refrigerator is raised 1.00 m to the truck bed when it is rolled up a ramp. Calculate the minimum work that must be done by the force you apply and the magnitude of the

    asked by Corey
  198. Bio 11

    what are 5 examples of the phylum porifera?

    asked by Priya
  199. Math

    What is the multiplier of 3/4 and 6/8

    asked by Anonymous
  200. Physics

    gazelle traveling 200 m/s is launched at a 40 degree angle with respect to the horizontal.

    asked by tnia
  201. adolescent psycoloy

    I am in a group of five and need help with my powerpoint project , never did one before question is dividing the self into different aspect and addressing how an independent collectivistic culture impacts those aspect of the self

    asked by antoinette
  202. Math

    Maggie makes some fruit punch. She mixes 2 1/2 quarts of grape juice with 1 1/2 quarts of orange juice. One quart of grape juice costs $1 less than one quart of orange juice. She finds that the total cost of making the fruit punch is $12.50. Calculate the

    asked by Andrew
  203. physics

    a standard coordinate system (+x to the right, +y upwards and +z out of the page) a particle with a positive charge is travelling in the +x direction when it encounters a magnetic field in the −y direction. In which direction will the magnetic force act

    asked by alty
  204. Chemistry

    I am a parent trying to help with my childs homework. This is the question that has us stuck. Can you assist us? Boron trioxide B203 , reacts with waterto produce boric acid, B(OH)3. B2O3(s) + 3H2o (l) -> 2B(OH)3(s) Ricardo adds 27.2 g of B2O3 to an excess

    asked by Gina
  205. math

    threetimes as children as adults attended a concert on Saturday. an adult's ticket coast $7 a child's $3. the theater collected a total of $6000. how many peolple bought tickets?

    asked by wojtek
  206. math

    How to find the area of a regular hexagon with a perimeter of 78 inches and a perpendicular distance of 11 inches from side to center

    asked by mary
  207. English

    The hairy man represents what in the call of the wild? My answer is fear

    asked by Steve
  208. English

    Does a comma go after an independent clause with a subordinate conjunction followed by another independent clause? Example The classes will be held unless the schedule has been changed. I know one is needed if a dependent clause is first.

    asked by Anonymous
  209. physics

    During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.144-kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 14.9 m / s, shatters the glass as it passes

    asked by nic
  210. English

    In the Call of the Wild, Buck did not fight back when Hal was beating, him because? My answer is that he did not have the strengh

    asked by Steve
  211. 5th grade math

    John picked 30 bags of apples on monday and sold them at his fruit stand for $3.45 each. The following week he picked and sold 6 more. How much money did John earn the 1 st week? 3.45x30=103.50 How much money did he earn in the second week? 3.45x36=124.20

    asked by Meli
  212. Math

    8x1/4=

    asked by Anonymous
  213. math

    what is 5t+12f-t-3f=

    asked by dillon
  214. Calculus

    1. On what interval is the function f(x)=x^3-4x^2+5x concave upward? My answer: (4/3, infinity) ?????

    asked by Anonymous
  215. chem 2

    methylamine is a weak base. calculate the pH of a .025 M solution of methylamine.

    asked by timmy
  216. Calculus

    2. For what values of x dies the graph of f(x)=2x^3-3x^2-6x+87 have a horizontal tangent? My answer: (1.6,77.9) (-0.62, 89.1)

    asked by Anonymous
  217. Math

    Simplify the expressions. 1. 2x - 4 + 3x 2. 4y - 1 - 3y + 2 3. x + 2(x - 4

    asked by Anonymous Person
  218. Calculus

    Show that the curve y=6x^3+5x-3 has no tangent line with slope 4. The answer key says that m=y'=18x^2+5, but x^2 is greater than or equal to 0 for all x, so m is greater than or equal to 5 for all x. I don't understand that x^2 is greater than or equal to

    asked by Anonymous
  219. Math

    What is the divisor of 12/18 and 4/6

    asked by Anonymous
  220. Chem 130

    What is the percentage of water in copper (II) sulfate pentahydrate?

    asked by michelle
  221. Chemistry

    If 0.85 mol of a diatomic molecule has a mass of 23.8g, identify the molecule? We tried to multiply .85 mol and 23.8g and then multiply by 2 to get an answer, but I believe I might be heading in the wrong direction.

    asked by Leo
  222. English

    They insist that Bacon really wrote the play. I am saying this is a complete sentence with no dependent clause,. Am I right?

    asked by Anonymous
  223. MACBETH HELP PLZZ!

    what motivated the Gunpowder Plot of 1605

    asked by John
  224. ENGLISH 10 HELP!!!

    what motivated Shakespeare to write The Tragedy of Macbeth?

    asked by John
  225. Calculus

    Draw a diagram to show that there are two tangent lines to the parabola y=x^2 that pass through the point (0,-4). Find the coordinates of the points where these tangent lines intersect the parabola. So far I have taken the derivative and got y'=2x.. Using

    asked by Anonymous
  226. Chemistry

    A piece of copper of mass 21.3 g at 106.0 °C is placed in a vessel of negligible heat capacity but containing 53.0 g of water at 19.3 °C. Calculate the final temperature of the water. I keep getting 22 celsius and I'm not sure where I'm going wrong. I

    asked by Jessica
  227. Chemistry

    A sample of light has a wavelength of 2.61 x 10^-12 m. What is it's frequency? A popular radio station broadcasts with a frequency of 94.7 mHz. What is the wave length of the broadcast? (1MHz = 1 x10^6 HZ) What is the wavelength of electromagnetic

    asked by Sarah
  228. Chem 130

    How many tons of zinc can be obtained from 976 tons of zinc ore that is 78.0% zinc carbonate?

    asked by michelle
  229. english

    I have to find the verb and predicate nouns and predicate adjectives. 1.) Their uniforms are a symbol of their authority. Verb=are PN=symbol

    asked by Cory
  230. Physics

    An 8.00g bullet is fired at 220m/s into a 250g wooden block that is initially at rest. The bullet remains in the block and after the collision the two slide up a 30° incline. a. Solve for the velocity of the bullet-block after the collision. (ans:

    asked by Mollie
  231. algebra

    The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240.

    asked by Nate
  232. algebra

    The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240. (a) Find the maximum height of the projectile. ______ ft (b) Find the

    asked by Nate
  233. algera

    The fuel efficiency for a certain midsize car is given by E(v) = −0.018v^2 + 1.440v + 3.9 where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the

    asked by Nate
  234. algebra

    The sum of the length l and the width w of a rectangular area is 220 meters. (a) Write w as a function of l. w = (b) Write the area A as a function of l. A = (c) Find the dimensions that produce the greatest area. l = w =

    asked by Nate
  235. algebra

    A veterinarian uses 300 feet of chain-link fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, (a) Write the width w as a function of the length l. w

    asked by Nate
  236. Calculus- Please Help!

    Very confused with this question. Amy help would be appreciated. The ideal gas law states that P V = nRT where P is the pressure in atmospheres, V is the volume in litres, n is the number of moles, R = 0.082 L·atm/K·mol is the gas constant, and T is the

    asked by Anonymous
  237. history

    What cities are in between the European trade route? And what are the cities in between the African trade route?

    asked by mi
  238. Physics

    A 4.9 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 14 N. Find the speed of the block after it has

    asked by Elizabeth
  239. geometry

    given ab=ac be is the medan to ac cd is the median to ab conclusion ag is the perpendicular bisector of bc

    asked by kiko
  240. PHYSICS

    What magnitude is not possible when a vector of magnitude 3 is added to a vector of magnitude 4?

    asked by Wendy
  241. physics

    a motorcycle wants to jump a ditch 4m wide. he leaves one side on a ramp that slopes up at 30 above horizontal. he lands at the same elevation at which he took off. his front wheel leaves the ground 2m before the edge of the ditch and comes down 3 m past

    asked by Michael
  242. TRIG WORD PROBLEMS

    from 25 feet away from the base of a building, the angle of elevation from the ground to the top of a building is measured 38 degrees. how tall is the building. WHat i did was put 25 feet on the base of the triangle the angle measurement oppsite and the

    asked by Albert