Questions Asked on
April 6, 2013

  1. Physics (Algebra-based)

    A block starts at rest and slides down a frictionless track except for a small rough area on a horizontal section of the track.It leaves the track horizontally, flies through the air, and subsequently strikes the ground. gravity= 9.81 m/s^2.

    asked by Becky
  2. statistics

    A salesman who is on the road visiting clients thinks that on average he drives the same distance each day of the week. He keeps track of his mileage for several weeks and discovers that he averages 122 miles on Mondays, 203 miles on Tuesdays, 176 miles on

    asked by Bettie
  3. Chemistry

    Calculate the [H3O+] and pH of each polyprotic acid solution. (b) 0.116 M H3C6H5O7 I did part (a) just fine, but for some reason can't figure (b) out. Can someone help me with just the [H3O+] part to get me started? I already got 9.3e-3 and 1.4e-3 without

    asked by DeeDee
  4. Alg 1

    The length of a rectangular prism is four times the width. The height of the prism is 8 ft. If the volume of the prism is 160 ft^3, what is the width of the prism? Round to the nearest tenth of a foot. Please solve and explain. Thanks

    asked by Jane
  5. chimestry

    if the volume of the vapor had been assumed to be 125ml instead of your measured volume,what would have been the percent error in your report? molar mass of the compound?explain

    asked by soso
  6. Physics

    A 500-turn circular coil with an area of 0.050 0 m2 is mounted on a rotating frame that turns at a rate of 20.0 rad/s in the presence of a 0.050 0-T uniform magnetic field that is perpendicular to the axis of rotation. What is the instantaneous emf in the

    asked by Muzammil
  7. Math

    A survey about the student government program at a school finds that of 245 students: 218 students like the program 27 students think the program is unnecessary If a circle graph were made from this data, what would the measure of the central angle be for

    asked by Anonymous
  8. Chemistry

    Identify the relative molar amounts of the species in 0.10 M NaBr(aq). NaBr, Na+, Br-, H3O+, OH-, H2O

    asked by Hei
  9. chemistry

    What volume of 0.100 M NaOH is needed to make 100.0 mL of a buffer solution with a pH of 6.00 if one starts with 50.0 mL of 0.100 M potassium hydrogen phthalate? The Ka2 for potassium hydrogen phthalate is 3.1 × 10-6.

    asked by rodger
  10. math

    The 9th term of an AP is 8 and the 4th term is 20. Find the first term and the common difference.

    asked by lindsay
  11. Ashford

    Which of the following is an example of an internal conflict? (Points : 1) Chief Brody’s conflict with the shark in Jaws Batman’s conflict with the Joker in The Dark Knight Jim Stark’s conflict with his parents in Rebel Without a Cause Scottie’s

    asked by Anonymous
  12. Chemistry

    A swimming pool with a surface area of 5 meters by 10 meters contains 88,000 liters of water. The temperature of the water in this pool increases by 2.00 C when it is heated by the Sun for 6.00 hours. Calculate the energy absorbed. 1.1.48×109J

    asked by Agnes
  13. pre calculus

    1.) If h(x)= (fog)(x) and h(x) = 3 over the square root of x+3 , find g(x) if f(x)= 3 over the square root of x+2. my answer is x+1. Am I right? 2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone

    asked by Leo
  14. chemistry

    A solution is made by dissolving 15.5 grams of glucose (C6H12O6) in 245 grams of water. What is the freezing-point depression of the solvent if the freezing point constant is -1.86 °C/m? Show all of the work needed to solve this problem.

    asked by MadiB PLEASE HELP :(
  15. stoichiometry

    1.how many mole, Fe can be made from Fe2O3 by the use of 20 moles of carbon monoxide, CO in the following reaction? Fe2O3+ 3CO = 2Fe+ 3CO2 2. How manhy moles of H2O are produced when 2.75 moles of O2 are consumed if burning methyl alcohol, CH3OH, according

    asked by jace
  16. solve the equation

    Solve the equation log[14](x+49) - log[196] x=1

    asked by Alley
  17. chem

    A certain constant-pressure reaction is nonspontaneous at 37°C. The entropy change for the reaction is 83 J/K. What can you conclude about the sign of ÄH? What can you conclude about the magnitude of ÄH?

    asked by hannah
  18. math

    Jenny wants to buy cereal that comes in large and small boxes. The 32 ounce box costs $4.16and the 14 oz ox costs $2.38.which box is less expensive per oz?

    asked by Abby
  19. chemistry

    A solution is made by dissolving 15.5 grams of glucose (C6H12O6) in 245 grams of water. What is the freezing-point depression of the solvent if the freezing point constant is -1.86 °C/m? Show all of the work needed to solve this problem.

    asked by MadiB PLEASE HELP :(
  20. grammar English

    I am writing about interviewing Deaf Persons for my ASL research paper. The first person is Christian DeGuzman. He is profoundly deaf since birth, and about 2 or 3 years old later they found out that he was deaf that’s why. Christian grew up in Bay Area,

    asked by Erin
  21. maths

    a big wheel of a penny farthing bicycle has a radius of 0.75m work out the number of complete turns the big wheel makes?

    asked by sharu
  22. biology

    90% if the released energy during the Krebs Cycle comes from what

    asked by Alex
  23. math

    1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension. No there is no common side (lets say.) Thanks

    asked by Daniel
  24. chemistry

    a human being requires 2700kcal of energy per day.if enthalphy of glucose is-1350kcal/mole,how many grams of glucose a person has to consume every day :

    asked by Anush
  25. chemistry

    How many Cl atoms are in a 2.54g sample of CCl4?

    asked by Sarah
  26. physics

    A boat is traveling on a bearing of 25 degrees East of North at a speed of 4 knots (a knot is 1.852 km/h). After traveling for 3 hours, the boats heading is changed to due South and it travels for an additional 2 hours at 5 knots. Using a Vector diagram,

    asked by Chad
  27. physics

    A car travelling 19.4m/s passes apolice car at rest.As it passes, the police car starts up, accelerating with a magnitude of 3.2m/s. Maintaining that acceleration, how long will it take the police car to catch up with the speeding motorist?

    asked by maddi
  28. physics

    Light is shining perpendicularly on the surface of the earth with an intensity of 680 W/m2. Assuming that all the photons in the light have the same wavelength (in vacuum) of 478 nm, determine the number of photons per second per square meter that reach

    asked by PLEASE AND THANK YOU
  29. statistics

    The data below are the average one-way commute times (in minutes) of selected students during a summer literature class and the number of absences for those students for the term. Calculate the linear correlation coefficient.

    asked by Anonymous
  30. maths

    a big wheel of a penny farthing bicycle has a radius of 0.75m work out the number of complete turns the big wheel makes?

    asked by sharu
  31. Chemistry

    A sample of aluminum oxide, Al2O3(s), contains 8.29*10^25 total atoms. Calculate the amount in moles of aluminum oxide in the sample. Hint: This is a two-step problem. Calculate the number of formula units first.

    asked by lg
  32. Help with statistics

    In a study of store checkout scanning systems, samples of purchases were used to compare the scanned prices to the posted prices. The accompanying table summarizes results for a sample of 819 items. When stores use scanners to check out items, are the

    asked by Bettie
  33. Lincoln College Of New En

    26 Gasoline Mileage for Autos and Trucks – Of the top 10 cars and trucks based on gas mileage, 4 are Hondas, 3 are Toyotas, and 3 are Volkswagens. Choose one at random. Find the probability that it is Japanese, Japanses or German or not foreigh.

    asked by Paula
  34. early child hood

    14. A child who has not developed a secure attachment with you A. may keep looking your way every time she causes a disruption. B. may repeat the same activity over and over. C. will spend most of her time alone. D. may talk in a loud voice.

    asked by Anonymous
  35. Physics

    A simple motor has N=250 turns of wire on a coil measuring 12 cm \times \, 4 cm. It's resistance is R=10 ohms. The magnetic field is B=1 T. (a) How much current (in Ampere) in the coil is needed to produce a maximum torque of 40 Nm? b) What maximum EMF (in

    asked by Phy
  36. algebra

    A rectangular picture is 2 inches longer than it is wide. When a frame 3 inches wide is placed around the picture, the area covered by the picture and frame is 168 square inches greater than the area covered by the picture alone. What are the dimensions of

    asked by Taylor
  37. WRITING

    I need help revising for pronouns towards this paragraph: Choosing a roommate is more difficult than they might think. People have different attitudes about sharing a living space. These attitudes are often based on our notions of cleanliness, ownership,

    asked by CHRISTINA OTORINO
  38. Alg 1

    Solving quadratic equations: What is the radius of the largest circular quilt that can be made with an area less than or equal to 70 ft^2? Round your answer to the nearest tenth of a foot if necessary. Please solve and explain. Thanks

    asked by Jane
  39. appliedcalculus

    Suppose a farmer has 1,000 feet of fence and wishes to build two identical rectangular enclosures. What should be the dimensions of each enclosure if the total area is to be a maximum? Set problem up and solve using derivatives.

    asked by Anonymous
  40. math

    It costs $35 for 5 friends to go it for lunch. How much is the total bill including 8% tax? How much will each person pay if everyone pays an equal amount?

    asked by greg
  41. Math

    if alpha and beta are the zeroes of the polynomial f(x)=x^2-3x-2 , find a quadratic polynomial whose zeroes are 1/2(alpha)+beta and 1/2(beta)+alpha ? Please... i have no idea !!

    asked by Mihir Sriram
  42. Che2201

    What is the difference between rotamer,enantiomer,conformer,atropisomer and configurational isomer?

    asked by Cingo xoliswa
  43. math

    Michael invested $1600 per half-year in an IRA each half-year for 9 years earning 9% compounded semi-annually. At the end of 9 years he ceased the IRA payments, but continued to invest his accumulated amount at 10% compounded yearly for the next 8 years.

    asked by melodi
  44. English III Love of Life By: Jack London

    Love of Life by: Jack London What is the cite of naturalism in the essay?? Please help me with this!! :( :) Thank you!!

    asked by Isis
  45. physics

    A rectangular wire loop of dimensions a×b, with a=3.5 cm and b=4.5 cm, is pulled parallel to side a at a constant speed v=4.3 m/sec into a region where the magnetic field, |B|=0.125 T, is uniform and perpendicular to the loop. The loop enters the magnetic

    asked by abdul rahman
  46. physical science

    Plan,design and conduct investigation to find out whether the amount of gas produced will depend on the increase on the concentration of HCl when it reacts with an excess Zn

    asked by kamogelo
  47. Math

    Simplify the expression (square root) √45/144 Thanks.

    asked by Alice
  48. chemistry

    if air has an average density of 1.29 g/L and CO is reported at 2.0 ppm, what volume of air will contain 1.00 mol of CO ?

    asked by loha
  49. math

    the angle of elevation from point on the ground to the top of a pyramid is 20 degrees 20 degrees the angle elevation from a point 189 feet farther back to the top of the pyramid is 10 degrees 20 degrees. find the height of the pyramid

    asked by Anonymous
  50. Biology

    a mother carried the sex-linked gene for color blindness and the father had normal color vision, what would be the probability of having a colorblind son? *using a Punnett Square

    asked by jen
  51. math

    The ratio of yellow paint to blue paint is 3 quarts to make the color green to paint my bathroom. I need a total of quarts of yellow paint. How many quarts of blue paints I need?

    asked by jenn
  52. Math

    A study determines that 60% of the voters in a town intend to vote for the incumbent mayor. If a sample of 8 people is selected, using the binomial formula, what is the approximate probability that 6 of the 8 people surveyed intend to vote for the

    asked by Tony
  53. History 204 american history 1865-present

    Gradually, over the first two decades of the 20th century, the suffrage movement gained momentum. Which of the following women was least associated with this movement over its entire history dating back to the 19th century? Carrie Chapman Catt, Alice Paul,

    asked by dot
  54. algebra

    what is the opposite of -12 3/4 -12 is the whole number what is the opposite of that is it 51/4

    asked by aa
  55. Inequalities.please a needy help here!!

    solve and graph y>2x-1

    asked by Jeconiah
  56. Statistics

    3. The following table lists the frequency distribution for 60 rolls of a die. Outcome 1-spot 2-spot 3-spot 4-spot 5-spot 6-spot Frequency 7 12 8 15 11 7 Using the “Goodness of Fit” test at the 5% level of significance, test whether the null hypothesis

    asked by Gummy
  57. Math

    The number of red cards in Lyle's trading card collection is directly is proportional to the number of yellow cards. At one point, Lyle's collection consisted of 56 red cards and 224 yellow cards. If r represent the number of red cards, and s represents

    asked by Anne
  58. algebra

    Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -9x2 + 2x + 6. a) {-0.71, 0.94} b) {-9,2} c) {-0.22, -0.67} d) {-1.50, 0.33}

    asked by Anonymous
  59. math

    A model of a park was built on scale of 1.5cm to 50m. If the distance between two trees in the park is 150m, what is the distance on the model?

    asked by Natalie
  60. History,maths literacy,english,life orientation,life science and geography

    Can i be a tourism and how much money does tourist make

    asked by Lesego
  61. lif orientation

    Critically discuss 10 ways in which the eenvironmental health harzard can impact negatively on one's health

    asked by thuto
  62. math

    I used 8 gallons of gas when I drove for 240 miles. How many gallons of gas are needed to drive 720 miles??

    asked by jill
  63. physics

    Jenny is riding on a bus. She has been unable to find a seat and so she is standing in the aisle. Explain, in physics laws and principles, why it is important that she hold onto something while she is completing her journey.

    asked by Mariya
  64. math

    three friends are sharing 36 cookies. jerry states that he wants 25% of the cookies, Gary wants 1/2 of the cookies and Terry wants 0.75 of the cookies. how many cookies does each person want? can each person get what they want? Explain your answer.

    asked by kadijah
  65. chemistry

    How many moles are contained in 3.25 L sample of an ideal gas at 25 Celsius and 204 kPa?

    asked by Shellby
  66. Annuity math

    Calculate the future value of S of an annuity using the following formula: S =R(1+i)^n-1/i) given R=250,i=0.001;n=13 please show the workout thankyou

    asked by naomie
  67. Math

    If a and b are positive odd integers, then prove that one of (a+b)/2 and (a-b)/2 are even or odd number. I mean in the above numbers one is odd and one is an even number.

    asked by Steve
  68. Physics

    For this problem, you are allowed to consult with other members of the class, but not with faculty and not with anyone outside the course. Simplify all your expressions. A car of mass, 2m, is going around a turn at a constant radius, R, with velocity, v0.

    asked by David
  69. Physics

    For parts A-C: /^Vo | 2M | velocity into pg. ->R )2m ) ------ top view rear view A car of mass, 2m, is going around a turn at a constant radius, R, with velocity, v0. The turn is not banked – it is a flat surface. Assume the car and the road are on

    asked by Greg
  70. Math

    There are approximately 131,000 cases of colorectal cancer in the US each year ( data as of 1998). The US pop is approx 270 million. What's is the probability that a randomly selected person in the US will develop this type of cancer during a year? What

    asked by Jessy
  71. math

    Which of the following conclusions is true about the statement below? x^2 = √x a) The statement is always true. b) The statement is true when x is negative. c) The statement is true when x=0. d) The statement is never true.

    asked by Anonymous
  72. math help

    Select the values of x that are solutions to the inequality 0 > x^2 + 5x -2

    asked by Anonymous
  73. Chemistry

    i. Which of the following solutions has the lowest pH (more acidic). Explain you answers. a. a 0.1 M solution of a strong acid or a 0.1 M solution of a weak acid. b. a 0.1 M solution of an acid with Ka=2×10-3 or one with Ka=8×10-6 c. a 0.1 M solutions of

    asked by m
  74. LA 101-STUDY SKILLS

    How can i write a thesis statement for this statement:The target for achieving universal primary education is that by 2015, children everywhere,both boys and girls must complete full cycle of primary school.

    asked by Solomon.ROY
  75. maths

    There are N ordered integer quadruples (a,b,c,d) subject to 0≤a,b,c,d≤99990 such that ad−bc≡1(mod99991). What are the last three digits of N?

    asked by maths
  76. Math

    Given table, X (1+x)^(1/x) -0.5. 4 -0.1 2.8680 -0.01 2.7320 -0.001 2.7196 0.001 2.7169 0.01 2.7048 0.1 2.5937 0 5 2.25 From the table, show that lim x->infinity (1+x)^(1/x)=e. Plz someone show me the step how to show it based on the table. Hope u can read

    asked by Ifi
  77. math

    what is the formula to calculate the area of a trapziode.

    asked by bob
  78. ELA

    Which of the following is a simple sentence? A.Dawn mounted the stage slowly B.As she stepped in front of the podium,her legs were trembling. C.She was a talented speaker,and she greatly admired Dr.King. D.When she looked up again,her brother grinned and

    asked by Ian
  79. achieving academic excellence

    critical thinking involves:coming up with the best solution, a thought process that is rationallogical &systematic, coming up with the best solution

    asked by cindy wilson
  80. science

    A solution of NaOH(molar mass 40g mol-1)is prepared by dissolving 1.6g of NaOH in 500 cm cube of water.Calculate molarity(M) of the solution

    asked by Divya
  81. 7th grade math

    There are 150 students in 7th grade. After signing up for electives for next year, the counselor posted the following data: Art - 65 students Band - 70 students Theatre - 50 students Not all students signed up for an elective. Display this data using Venn

    asked by Renee
  82. Grammar

    I'm doing a homework assignment - determining whether sentences are run-on, complete or usable. I'm stuck on this one. The patient obtained records in order to save the nurse a phone call to her previous doctor and she made sure to ask right away for this

    asked by Anonymous
  83. maths

    Iam stuck with this question.Please anyone help me. An airplane is flying at an altitude of 10,000m.The pilot sees two ships A and B.Ship A is due south of P and 22.5km away(in a direct line).Likewise ship B is due East and 40.8km from P. The height is

    asked by Shane
  84. Math 112 Please my last chance

    Can you use the numbers 1 - 9, along with any math symbols and operations, to arrive at the answer of 100 when the 6 and 9 have a negative sign in front of them? I'm not sure how my teacher wants this to be done

    asked by Enis
  85. math

    Calculate the future value of S of an annuity using the following formula: S =R(1+i)^n-1/i) given R=250,i=0.001;n=13 please show the workout thankyou

    asked by naomie
  86. Accounting

    The Converting Department of Soft N' Dry Towel and Tissue Company had 920 units in work in process at the beginning of the period which were 75% complete During the period 16200 unis were completed and transferred to the Packing Department. There were 960

    asked by Acct
  87. Calculus (Gr.12) Math

    I am not sure how to do this question I know I have to take the derivative but then I am left w/ to unknowns. If a projectile is shot up hill the distance (range) of the landing point up the hill depends on the initial speed of the projectile,v, the angle

    asked by Bob
  88. science

    u have 2 cars moving at the same mass and speed collide and stick together what is the momentum? a. twice the original b. half the original c. the same as the original d. 10 times the original

    asked by Anonymous
  89. Medical Administrative Assisting

    How many main points in a speech?

    asked by Beverly
  90. writing

    how can i reword this differently Free will is God’s indispensable gift to humanity, and we must allow ourselves to be open to salvation in light of the choices we make.

    asked by Anon
  91. algebra

    How do I solve this problem? 3x-2/3x=4/3

    asked by dina
  92. Phi 103

    In the conditional "P →Q," "P" is a

    asked by Wee
  93. Math

    1. A certain airline has 10 flights a day from N.Y. to Chicago. From chicago there are 8 flights a day to L.A. Can you conclude that there are 80 possible ways to book a flight from N.Y. to L.A. via chicago? Explain

    asked by Allyx3
  94. Math

    The weather forecast states that there is a 70% chance of rain tomorrow. Which of the "definitions" of probability is relevant to this statement and explain why?

    asked by Alice
  95. Statistics

    2. In 2009 a random sample of 70 unemployed people in Alabama showed an average weekly benefit of $199.65. In Mississippi, for a random sample of 65 the number was $187.93. Assume population standard deviations of $32.48 and $26.15 respectively. a. Using

    asked by Gummy
  96. math

    There are 3 reds, 4 blues, 6 whites and 5 yellows in a bag. What is the probability that the first two you draw are both red if you do not replace the first one?

    asked by melissa
  97. Algebra

    How do I write the terms of the series and find the sum. 4 summation notaion sign (k+6)^2 where k=1 under the summation sign

    asked by clj45
  98. chemistry

    If 22.0 of gas has a volume of 0.22 at 320 , what is its pressure in mmHg?

    asked by amelia
  99. math help please

    Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2x^2 + 9x + 9. a) {–0.22, 1.00} b) {-2, 9} c) {–4.50, –4.50} d) {–0.84, 5.34}

    asked by Anonymous
  100. math

    Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2x^2 + 5x + 7. a) {3.50, –1.00} b) {-2, 5} c) {–2.50, –3.50} d) {–0.29, 0.71}

    asked by Anonymous
  101. math

    Find the volume of this triangular prism. base 3, width 2, height 4 Type number answer only.

    asked by paragonnova
  102. mathe

    determine the current yield of a bond with par value of $1000 if the quoted price is 78 1/2 and the rate is 8 1/4

    asked by christine
  103. World History

    Describe the lost libraries of Timbuktu.

    asked by Gregory
  104. physics

    A 2 N neuton force is applied to a a2.5 Kg dry ice puck that moves frictionlessly across a desktop. If the puck starts at rest, how fast will it be moving after the force is applied? If the puck were moving at 0.6 m/x, how long would it take to bring the

    asked by Thena
  105. EQUATIONS

    The perimeter of a rectangular field is 182 m, and its area 1938 m2. Find its dimensions.

    asked by VIVAN
  106. trig

    If it is given that tan(A-B)=tanA-tanB/1+tanAtanB and tanP-1/1+tanP=tan195 find p

    asked by Kale
  107. Physics

    The equation describing the (r, \theta ) coordinates of points along a single field line of a magnetic dipole is r=R_0 \sin ^2(\theta ) where \theta =0 is in the direction of the dipole moment and R_0 is a constant which is different for each field line.

    asked by Phy
  108. math

    2y = 4/3 simplify

    asked by rj
  109. Science (MYOGLOBIN)

    Does anyone know the coenzyme found in myoglobin

    asked by meghan
  110. math

    the angle of elevation from point on the ground to the top of a pyramid is 20 degrees 20 degrees the angle elevation from a point 189 feet farther back to the top of the pyramid is 10 degrees 20 degrees. find the height of the pyramid

    asked by Anonymous
  111. algebra

    last month mayfield paper comapny sold 58 more than 3 times as many reams of paper a superior comapany if the two companies sold a total of 870 reams of paper how many reams of paper did mayfield paper company sell

    asked by ee
  112. math

    Let 2^a = 5 and 2^b = 3. Using exponent rules, solve the equation in terms of a and b. 0.4^x = 27

    asked by Katie
  113. LIFE Orientation

    critically discuss 10 ways in which the environmental health hazards can impact negatively on oness health

    asked by thuto
  114. math

    Please help me find the rule input 0 output 2 then input 1 output 4 next input 2 output 6 then input 3 output 8 last input 4 output 10 Thanks

    asked by Abby
  115. Quantum Physics

    Consider a particle whose wavefunction at some fixed time t is represented by -A if -2≤x≤0 ψ(x)= A if 0≤x≤3 0 otherwise (a) What is the normalization constant A? (b) What is the probability of finding the particle at a position x≤0? (c) What is

    asked by qwerty
  116. Math

    1. If -1/infinity = infinity or -infinity ? 2. If lim x->infinity^- = infinity & lim x->inifinity^+ = -infinity, then lim x->infinity = does not exist. Am i right? If im wrong please tell me the reason why?

    asked by Ifi
  117. home economics

    what are the cost and consequences of providing the subsidies and welfare

    asked by Lusanda
  118. budgeting money

    Budgeting should begin with

    asked by Aquillah
  119. Physics

    When catching a ball, your cricket coach advises you to move your hands backwards with the ball. Explain the physics behind this 'follow through' technique.

    asked by Mariya
  120. math

    6_12_9_18_15 Please help find the next three patterns 2_9_16_23

    asked by jacob
  121. Life orantation

    Discuss 5 ways in which the HIV/AIDS problem impacts on the community?

    asked by Nhlanhla mogola
  122. Life orientation

    Hi cn u gve me 5 wayz in which hiv/aids impactz 0n the community

    asked by Leeandra
  123. life orientation

    in 10-15 lines critically discuss 5 ways in which the humen or environmental problem impacts on the community

    asked by mukwevho ndivhuwo
  124. math

    a function f(x) is defined as f(x)= -8x^2. What is f(-3)?

    asked by Yania
  125. math

    x/4=10/20

    asked by carol
  126. Math Systems

    I cannot solve these last three systems. Could you show me the work for them so i understand how to do them. 1) x-y=1 2x+y=5 3x-4y=2 2) 5x+8y+6z=14 2x+5y+z=12 -3x+6y-12z=20 3) x^2+2xy-2y^2=-11 x^2+xy-2y^2=-9

    asked by Sam
  127. math

    2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone please show me how to do it? This I what I did to solve for it: 3(x-3) 3(he square root of 25-3 3(5-3) 15-9=6 Ok here is another way I solved for

    asked by Leo
  128. math

    2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone please show me how to do it? This I what I did to solve for it: 3(x-3) 3(he square root of 25-3 3(5-3) 15-9=6 Ok here is another way I solved for

    asked by Leo
  129. Math

    1. If -1/infinity = infinity or -infinity ? 2. If lim x->infinity^- = infinity & lim x->inifinity^+ = -infinity, then lim x->infinity = does not exist. Am i right? If im wrong please tell me the reason why?

    asked by Moly
  130. ela

    what is the authors purpose for writing the test john white and roanoke?

    asked by maya
  131. Math

    Given table, X ; (1+x)^(1/x) -0.5. ; 4 -0.1 ; 2.8680 -0.01 ; 2.7320 -0.001; 2.7196 0.001 ; 2.7169 0.01 ; 2.7048 0.1 ; 2.5937 0 5 ; 2.25 From the table, show that lim x->infinity (1+x)^(1/x)=e. Plz someone show me the step how to show it based on the table.

    asked by David
  132. math

    Maurice needed to cut a piece of wood for this project that measures 4 and 3/4 inches. how much wood will he have left if the board that he is cutting from is 8 inches long? show your work.

    asked by kadijah
  133. Grammar

    Can you please define "usable sentence?" Can you please give me an example of a usable sentence? Thanks for your help.

    asked by Anonymous
  134. College math

    I really need to know the answer to this extra credit problem. Please help! A quantity, W, is directly proportional to X and the square of Y and inversely proportional to the cube of Z. W=3 when X=4, Y=2 and Z=4. What is the value of W when X=8, Y=9 and

    asked by Lorie
  135. Physics

    in the moments before you hit a truck, you decide to calculate the impulsive force (impulse) you will feel. you and your bike have a combined mass of 120kg and the truck brings you to a halt in 0.3s. What is your impulse?

    asked by Mariya
  136. poetry...

    "Hope is the thing with feathers That perches in the soul, And sings the tune--without the words, And never stops at all, "And sweetest in the gale is heard; And sore must be the storm That could abash the little bird That kept so many warm. "I've heard it

    asked by Anonymous
  137. chemistry

    True statement for Catalyst ___________ I. make a spontaneous reaction is not spontaneous II. accelerate the reaction forward and slow reverse reaction III. lowering the activation energy of the forward reaction IV. lowering the activation energy of the

    asked by Mega
  138. algebra

    Tom decides to make a rectangular desk top from a plywood door that was stored in the basement. The door was 2 feet longer than twice its width. To get the desired size desk he cuts 3 inches off its length and 1/2 foot off its width. If the plywood he cut

    asked by Tom
  139. biology - environmental

    How does the edge (shoreline) of a marsh/wetland affect the wetland? Would it be better for the wetland to have a round or broken shoreline? Are coves, peninsulas and islands important to have? How does the shape affect wave action and exposure to wind?

    asked by terra
  140. math

    25/11 + 2y = 3 Subtract 25/11 from both sides How do subtract this fraction from 3?

    asked by rj
  141. math

    38 divided bye 6

    asked by kadijah
  142. log

    Use the properties of log to find the exact value of each expression. Do not use calculator 8 log 8^5

    asked by Alley
  143. eng1511

    an essay:the sure solution to unemployment is a better quality of education

    asked by thandeka jaca
  144. Chemistry

    i. Which of the following solutions has the lowest pH (more acidic). Explain you answers. a. a 0.1 M solution of a strong acid or a 0.1 M solution of a weak acid. b. a 0.1 M solution of an acid with Ka=2×10-3 or one with Ka=8×10-6 c. a 0.1 M solutions of

    asked by m
  145. math

    can you show the work for 6x^2+11x-35=0

    asked by Anonymous
  146. Poetry

    Please check this. "Hope is the thing with feathers That perches in the soul, And sings the tune--without the words, And never stops at all, "And sweetest in the gale is heard; And sore must be the storm That could abash the little bird That kept so many

    asked by Anonymous
  147. Alg 1

    Solving quadratic equations: What is the value of "b" in the triangle where one part of the right angle is "3b" and the other part of the right angle is "b". The area inside is 24 in^2. Please solve and explain. Thanks

    asked by Jane
  148. geometry

    camera is 4 ft 6 inched off the ground 18 feet away from a silo, how tall is the silo

    asked by steve
  149. math

    Write the slope Intercept form of the depletion of the line that contains -4,6 and 6,-1

    asked by Ashley
  150. ACC 400

    Case 13-4 Application of SFAC No. 13 On January 1, 2006, Lani Company entered into a non cancelable lease for a machine to be used in its manufacturing operations. The lease transfers ownership of the machine to Lani by the end of the lease term. The term

    asked by Anonymous
  151. Math

    A plane leaves point A and flies S80° E to point B400 km away. How far east of A is B (to the nearest kilometer)?

    asked by Vincent
  152. Philosphy

    what is the role of the agent intellect? I know it illuminates and then abstracts the phantasm, but not really understanding completely..thank you

    asked by ashley