Questions Asked on
March 21, 2016

  1. Physics

    A 5kg block is being pulled on a horizontal frictionless surface. The tension in the string is 30N. If the block has an initial speed of 2m/s, what is the speed after moving 10 meters? Please help!Thanks

    asked by Donna
  2. physics

    A 5 kg block is being pulled on a frictionless surface by a string at an angle of 30o to the horizontal. The tension in the string is 30 N. What is the total work done on the block as it moves a distance of 10 m? Thank you!

    asked by Donna
  3. Maths lit,life science,agriculture,geograph

    Plzzz help me which carree can i choose?

    asked by Pat
  4. math

    How can I change 33(1/3) percent into fraction? I've done this so far: Change 1/3 into decimal, therefore =0.33 =33.33 TO change into fraction I have to divide by 100 0.33/100? Answer is 1/3 But i don't know how..?

    asked by Jonny
  5. Biology i need your help

    list the risks of calcium(Ca) for our health.

    asked by Yaekob
  6. English

    1. Math is complex but useful. 2. Music is not only easy but also interesting. 3. Social studies is informative as well as interesting. 4. Music is not boring but exciting. 5. Technical arts is not only useful but also informative. 6. Chinese characters is

    asked by rfvv
  7. calculus

    the vector function r(t)=< 5 sin t, 3 sec t > , represents the position of a particle at time t. find the velocity v (t) and acceleration a (t). I don't know how to solve it without the t given. Please help

    asked by Danny
  8. Algebra

    Tɨċҡɛts tօ a ʍɨɖɖʟɛ sċɦօօʟ sօċċɛʀ ɢaʍɛ ċօsts $4 ʄօʀ ċɦɨʟɖʀɛռ aռɖ $5 ʄօʀ aɖʊʟts . tɦɛ tօtaʟ ʀɛʋɛռʊɛ ʄʀօʍ tɦɛ ʀɨċҡɛts sօʟɖ աas $955. Tɦɛʀɛ աas 220 tօtaʟ tɨċҡɛts sօʟɖ .

    asked by Jess
  9. physical sciences, Life sciences, geography and Mathematics

    which jobs are related to these subjects?

    asked by lihle
  10. MATH_2016

    For the geometric sequence, -100,50,-25,12.5, find the next two terms and the general term.

    asked by Anonymous666_2
  11. please help my physics

    A child of mass 40kg jumps off a wall and hits the ground at 4m/s.He bends his knees and stops in 1s.Calculate the force required to slow him down.How would this force be d/t if he didn't bend his knees and stopped in 0.1s?

    asked by yaekob
  12. MATH_2016ii

    A boy was building up his collection of marbles.He decided to increase his collection by 12 a week.After 13 weeks he had 161 marbles. (i) How many marbles did he have after 4 weeks? (ii) After how many complete weeks will he reach his target of 809

    asked by Anonymous666_3
  13. computer programing

    What are the differences between fields, records and files? Need help trying to figure this out as what I can think of is just little as this So - a field is a SUBSET of a record; a record in turn is a SUBSET of a file, and a file is a subset of a database

    asked by Poohboi23
  14. Linear Algebra

    Let T be a linear operator on R2 defined as follows on the standard basis of R2. T(1, 0) = (3, 2), T(0, 1) = (−1, 4). Find T(9, 4).

    asked by Winston
  15. question !!!

    sir steve have been looking for that book you said i should buy over the net the whol,night to get,the raw file study them but i could not see can you direct me to,a,link

    asked by collins
  16. chemistry

    A 0.109g sample of a pure gaseous compound occupies 112ml at 100degrees and 750torr: what is the molecular weight of the compound. ANS=(30.2g,mol). Please I need the solution

    asked by charles
  17. English grammar

    1.Honour or reputation ---(is,are)dearer than life. Which of the two words is the most appropriate?

    asked by R
  18. Curriculum Development

    Rosa doesn't want to finger paint. She is afraid she will get dirty. Ms. Moore should NOT: A. allow Rosa to stand by and simply observe the other children. B. invite Rosa to soap paint instead C. insist that she try it since Rosa can wash when finished. D.

    asked by Angy
  19. PHYSICS

    Kinetic Energy and the Work/Energy Theorem: 1.) How much kinetic energy does a 700-gram baseball have that is travelling at 20 m/s? What would be the kinetic energy if you doubled the mass? What would be the kinetic energy if you doubled the velocity?

    asked by S.A
  20. English

    1. He paid attention to the elderly people. 2. He got attention to the elderly people. 3. He got attention from the elderly people. 4. He drew attention to the elderly people. 5. He drew attention from the elderly people. =========================== Which

    asked by rfvv
  21. Maths

    The angle of a sector of a circle with radius 42cm is 120 degree.if the sector is cut out and used to make a cone,what is the curved surface area of the cone?

    asked by Bright ulubi
  22. English

    1. All the lights went out and we were left in the dark. 2. All the lights went out and we were left in the darkness. 3. All the lights went out and we were left in dark. 4. All the lights went out and we were left in darkness. ============== Which

    asked by rfvv
  23. STATISTICS

    A multiple-choice quiz has 15 questions, each with 4 possible answers of which only 1 is the correct answer. What is the probability that a student gets exactly 8 correct answers?

    asked by NARUTO
  24. STATISTICS

    A multiple-choice quiz has 15 questions, each with 4 possible answers of which only 1 is the correct answer. What is the probability that a student gets at least 1 correct answer?

    asked by NARUTO
  25. STATISTICS

    In a certain city district, the need for money to buy drugs is given as the reason for 65% of all thefts. What is the probability that exactly 2 of the next 4 theft cases reported in this district resulted from the need for money to buy drugs?

    asked by NARUTO
  26. STATISTICS

    Suppose that airplane engines operate independently in flight and fail with probability 1/5. Assuming that a plane makes a safe flight if at least one-half of its engines run, what is the probability that 4-engine plane has a successful flight?

    asked by NARUTO
  27. STATISTICS

    A store owner complains that, on the average, 3 bottles per case of a certain brand of softdrink are underfilled. Assuming this is correct, find the probability that a randomly chosen case of this drink will contain at least 4 underfilled bottles.

    asked by NARUTO
  28. STATISTICS

    On the average, 7 people per hour use an express teller machine situated inside a commercial complex. What is the probability that, from 3:00-4:00pm on Friday, exactly 7 people will use the teller machine?

    asked by NARUTO
  29. Math

    If 1 < x < 9/8, which is bigger, ∛3x or √2x.

    asked by Lance
  30. STATISTICS

    On the average, 6 people per hour use an express teller machine situated inside a commercial complex. What is the probability that, from 3:00-4:00pm on Friday, at most 4 people will use the machine?

    asked by NARUTO
  31. STATISTICS

    A coin is tossed 3 times and let X be the number of heads appearing. The probability that 1 head will appear iS?

    asked by NARUTO
  32. STATISTICS

    A coin is tossed 4 times, the probability that all heads and all tails will appear is??

    asked by NARUTO
  33. STATISTICS

    The probability that a certain production process will produce a defective part is 0.20. If a box contains 12 parts, the probability that it will contain 6 defective parts is?

    asked by NARUTO
  34. STATISTICS

    The probability that a certain production process will produce a defective part is 0.20. If a box contains 12 parts, the probability that there will be 6 or 7 defective parts is ??

    asked by NARUTO
  35. STATISTICS

    A math teacher observes that on the average 3 students came to their 8-9AM class late. The probability 5 students will be late in their 8-9AM class is ???

    asked by NARUTO
  36. STATISTICS

    A math teacher observes that on the average 3 students came to their 8-9AM class late. The probability 5 students will be late in their 8-9AM class is ????

    asked by NARUTO
  37. STATISTICS

    A math teacher observes that on the average 3 students came to their 8-9AM class late. The probability 5 students will be late in their 8-9AM class is ???

    asked by NARUTO
  38. Math

    The area of a rectangular garden is given by the trinomial x^2+x-30. What are the possible dimensions of the rectangle? Use factoring. A)(x-6) and (x-5)* B)(x+6) and (x-5) C)(x+6) and (x+5) B)(x-6) and (x+5)

    asked by Evan
  39. Maths

    Find the equation of a straight line whuch passes through the points (2,3) and (-1,4)

    asked by Bright ulubi
  40. Whats the answer

    Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms. 2-11x^2-8x+6x^2. A) -5x^2-8x+2; quadratic trinomial B) -5x^2-8x; quadratic binomial C) -6x^2-8x-2; cubic polynomial D) -8x+2; cubic trinomial

    asked by Evan
  41. Physics

    In a water park, people walk a distance of 20 meters up an inclined ramp before getting on a water slide. If the spot from where they start sliding down is located 7 meters above the water’s surface, calculate the angle of the ramp with the horizontal

    asked by Adrian Watkins
  42. Trigonometry

    Sin a cos a(tan a+cot a)

    asked by Alip
  43. math

    Your fav store is having a sale. Would you prefer to get a $10 off or a 10% off coupon? EXPLAIN PLEASE.

    asked by help!!
  44. geom

    If you have 100 feet of fence, which measurements would give you the largest area?

    asked by kristina
  45. Algebra

    a spinner used for a game is divided into sections: yellow, green, and orange. Janie spins the spinner 20 times. The spinner lands on green 8 times. What is the experimental probability that the spinner does not land on green?

    asked by Crystal
  46. Chemistry

    A student used 5.06g of copper sulphate pentahydrate and salicyclic acid in the performance of the experiment. The student recovered 3.094g of salicyclic acid and 2.146g of copper sulphate pentahydrate. What is wrong with the student's result? How might

    asked by Tolu
  47. chemistry

    (7 points) 1. The reaction that you just witnessed in while doing your titration was: HCl + NaOH  H2O + NaCl. This equation is balanced. Your unknown solutions contained HCl solutions of unknown concentrations, and your titrant was a 0.75 M solution of

    asked by kat
  48. Math Help

    What is the sum or difference? A)-7y^5* B)-30y^5 C)-30y^10 D)-7y^10

    asked by Evan
  49. philosophy 1290

    2. In 2004 Z is having a conversation with his friend X and X’s wife Y. Y is a U.S. citizen and a ‘Bushy’ (a supporter of George W. Bush). She is planning on voting for Bush in the upcoming presidential election. Z and X (both are Canadian citizens,

    asked by sisikeri
  50. Physics

    A transparent photographic slide is placed in front of a converging lens with a focal length of 2.41 cm. An image of the slide is formed 13.0 cm from the slide. (a) How far is the lens from the slide if the image is real? (Enter your answers from smallest

    asked by Deaven
  51. Pre Algebra

    6. Given the function rule f(x)=x^2-3x+2, what is the output of f(-2)? A. -8 B. 0 C. 4 D. 12 7. Suppose you earn $15 for each car you wash. Which function describes the relationship between your total earnings E and and the number of cars you wash C? A.

    asked by Summer
  52. accounting

    A business has a rate of return of seven times. At one time the business had an average stock of sh 142,000. The trade discounts allowed was 33.3% of all selling prices to retailers of gross profit. Calculate; (a) cost of goods sold (b) gross profit (c)

    asked by Mesh
  53. Pre Algebra

    Describe the speed of the remote-control car over time. A. The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 5 mi/h in the next 2 seconds, and then remains at 5 mi/h for the last 5 seconds. B. The speed of the car

    asked by Summer
  54. Physics

    A 5 kg block is being pulled on a frictionless surface by a string at an angle of 30o to the horizontal. The tension in the string is 30 N. What is the total work done on the block as it moves a distance of 10 m?

    asked by Danny
  55. Math

    Shelly is working 250 math problems and she wants to finish in 6 days. If she works the same number of problems each day for 5 days how many problems will she have left to work on day 6?

    asked by Valerie
  56. health

    What is the best activity to do immediately after playing tennis? a.Drink plenty of juice and sit in the shade to cool your body down. b.Stretch the leg muscles by bouncing to reach as far as you can each time. c.Stretch your leg muscles by slowly bending

    asked by im new here
  57. maths

    if a vector A has a magnitude 6 and another has a magnitude 7 with an angle 120 in between ,what is its cross product?

    asked by Anonymous
  58. pre Algebra

    Do the data in the table represent a linear function? If so, write a rule for the function. x –3 –2 –1 0 1 y 1 –2 –5 –8 –11 (1 point) yes; y = –3x – 8 yes; y = 1/3x – 8 yes; y = 1/3x + 8 yes; y = 3x + 8

    asked by Summer
  59. child daycare

    When incorporating a business, which one of the following is not a major step to take? A. Filing your employee policies with the proper state agency B. Holding an incorporator's meeting C. Preparation of bylaws D. Preparation of articles of incorporation

    asked by Anonymous
  60. Trigonometry

    A rocket is launched from a tower that is 200 feet high at 1000ft/sec at 48°. How far does the rocket travel?

    asked by Alline
  61. Physics

    Find the minimum stopping distance for a car moving at 108km/h if the coefficient of static friction between the tires and road is 0.9 I really don't understand pls helppp

    asked by Amelie
  62. Physics helllppp

    8] Find the minimum stopping distance for a car moving at 108km/h if the coefficient of static friction between the tires and road is a) 0.9

    asked by Amelie
  63. math

    Amanda has a ribbon that is 1-meter long. She wants to put a bead at every of a meter. She puts the first bead at and the last bead is at 1 meter. Which number line shows the correct placement of beads if Amanda puts them at every of a meter? A. B. C. D.

    asked by mom
  64. Microbiology

    PLEASE HELP I AM NOT SURE WHAT THE CORRECT ANSWERS ARE: I have guessed them please let me know if they are correct. 1. The LEAST likely microbe to be used as a biological weapon would have which of the following characteristics? a. spread by insect vectors

    asked by J
  65. E.L.A

    In which sentence does the prepositional phrase act as an adverb? A)Last evening, Anne suffered from a headache. B)The door to the attic was left open. **** C)Mr. Frank discussed the problem of noise in the annex. D)He bought a drink for Mr. Dussel. In

    asked by UNKNOWN
  66. social studies

    how did the three phases of industrialization affect the growth of cities?

    asked by help please
  67. Chemistry

    How many grams of potassium nitrate, KNO3 are required to make 250 mL solution with a molarity of 0.40 M?

    asked by Veronica
  68. Pre Algebra Test

    Which quadric rule represents the data in the table below? A. y=-2x^2+5 B. y=-x^2+5 C. y=x^2-5 D. y=x^2+5

    asked by Summer
  69. Pre Algebra

    A 154-lb person burns 420 calories per hour riding an excercise bicycle at a rate of 15 mi/h. Write a function rule to represent the total calories burned over time by that person. Explain how the information in the problem relates to the function.

    asked by Summer
  70. math help

    A piece of rectangular paper measures 8x by 12x. If a circle with a radius of 3x is cut out of the middle of the paper, what will be the area of the remaining piece of paper in terms of π? 3. A rectangular gazebo measuring 7x by 9x is built in the middle

    asked by XenaGonzalez
  71. E.L.A

    Which expression best represents the views a fatalist would have? a. “whatever will be , will be”*** b. “the best is yet to come” c. “we are still masters of our fate” d. “you don’t know what you have until it’s gone” In which of these

    asked by UNKNOWN
  72. Music

    the study of great classical composers is called...

    asked by No one special
  73. physics

    during a collision, a driver of mass m in a car moving at speed v is brought to rest by an inflated air bag in time t. (a) write an equation showing the average force the air bag exerts on the driver. (b) suppose the mass of the driver is 55 kg, the

    asked by osama
  74. chemistry

    CH3-C(Cl)(C2H5)-CH(CH3)-C(NH2)(Br)-CH2-CH2-C(CH3)3 IUPAC name of this compound

    asked by Anonymous
  75. physics

    Two charges +q and −q are separated by a distance d. Find an expression for the potential difference VBA = VB − VA, where points A and B are both a distance b from the charges. 

    asked by kim
  76. physics

    A constant electric field is 29, 000N/C is created between two parallel plates. If the potential difference is 140, 000V , how far apart are the two plates?

    asked by kim
  77. Math

    In An election sample poll of 400 you find that 53% of the Sample is planning on voting for our candidate

    asked by Anonymous
  78. math

    1 number is selected at random from 0-9,find the probability that number is odd number

    asked by kapil
  79. Us government

    James Madison one said: "wherever the real power in the government lies there is the danger of oppression. In our government the real power lies in the majority of the community. How does the constitution reflect his concern?

    asked by Troy
  80. Pre Algebra

    Describe the speed of the remote-control car over time. A. The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 5 mi/h in the next 2 seconds, and then remains at 5 mi/h for the last 5 seconds. B. The speed of the car

    asked by Summer
  81. astronomy

    On Earth, an astronaut weighs about 600 Newtons. The mass of the Earth is about 6 x 1024 kg, and the radius of the Earth is about 6.4 x 106 m. Suppose the astronaut climbs a ladder to a height of one Earth radius above the Earth. What is the new weight of

    asked by bob
  82. Pre Algebra

    Which quadric rule represents the data in the table below? A. y=-2x^2+5 B. y=-x^2+5 C. y=x^2-5 D. y=x^2+5

    asked by Summer
  83. math

    A 5-foot ladder is leaning against a 4-foot wall. How far must the bottom of the ladder be from the base of the wall so that the top of the ladder rests on the top of the wall?

    asked by Ingrid
  84. U.S. Government

    The authors of the Federalist Papers stated that when framing a government the government must first be able to control the governed and also be able to control itself. To what extent were the founding fathers successful in implementing these goals?

    asked by Troy
  85. math

    Antoine went on vacation. His room cost $115.62 each night. His flight there cost $45.70. His flight home cost $32.49. He averaged $15.00 per day on food. On the first day Antoine won $75.00. On the last day he lost $25.00. If he stayed for 3 nights and 4

    asked by Ingrid
  86. math

    Which of the following best completes the sequence below? 7, 14,

    asked by Ingrid
  87. Maths

    Find domain and range a)f(x)= uderthe radical 1-3x b)f(x)=1/2x-6

    asked by Yaekob
  88. English

    Would someone be willing to grade or check my rough draft of a critical review?

    asked by Katie
  89. PHYSICS! are these correct?

    How much kinetic energy does a 700-gram baseball have that is travelling at 20 m/s? What would be the kinetic energy if you doubled the mass? What would be the kinetic energy if you doubled the velocity? V1= 20 m/s K1= ½ m v1^2 = ½ (700 g)(20 m/s)^2 = ½

    asked by A
  90. math

    Nut C fits on Bolt C. Nut B fits on Bolt B. Nut A fits on Bolt A. Bolt C is larger than Bolt B. bolt A and Bolt B are exactly the same. Which is true? a. Nut C will fit on all of the bolts. b. Nut A will fit on Bolt C and Bolt B c. Bolt A will fit Nut A

    asked by Ingrid
  91. math

    Nut B fits on Bolt B. Nut A fits on Bolt C, but does not fit on Bolt A. Bolt B and Bolt A are exactly the same. Given this scenario, will Nut A fit on Bolt B? a. Yes b. no c. not enough info

    asked by Ingrid
  92. chemistry

    How do I make imgur dot com/kvxVZEv from cyclohexanone. Stork enamine synthesis results in a primary alcohol but I need secondary alcohol with one more carbon atom at right end.

    asked by r.sh
  93. math

    SinA➖cosA/sinA➕cosA➕sinA➕cosA/sinA➖cosA=-2/cos2A

    asked by snenhlanhla
  94. GT LA

    What is the appositive in this sentence? Sarah's dog Buddy dug in the garden. A. Sarah's B. Buddy C. in D. the A or B

    asked by Like I'd Tell You.
  95. math

    nut A fits on Bolt B. Bolt C does not fit Nut A or Nut B. Nut D fits on Bolt B. Bolt C is the same size as Bolt D, but smaller than Bolt A. Will Nut D fit Bolt A? a. Yes b. no c. not enough info

    asked by Ingrid
  96. Chemistry

    name the three fundamental particles present in an atom

    asked by Muluta Shalifu
  97. reading comprehension

    Anna has two aunts, Gertie and Samantha. She has one Uncle, jimbo. Jimbo has a nephew on Anna's side of the family, Timothy, who has two children, John and Aubrey. Which of the following indicates the relationship between Timothy's daughter and Anna? a.

    asked by Ingrid
  98. reading comprehension

    Bob has a brother, Jim, who has a daughter named Bertha. Bertha's daughter, Jennifer, has a sister named Penny. Which of the following indicated the relationship between Jim and Penny? a. Jim is Penny's father b. Jim is Penny's uncle c. Jim is Penny's

    asked by Ingrid
  99. Physics

    We can measure angles in degrees or radians. When studying angular motion, we will tend to use radians. If you are looking at a portion of a circle, the angle in radians can be calculated by dividing the arc length by the radius of the circle. The arc

    asked by Anonymous
  100. math

    nut B fits on Bolt B. Nut A fits on Bolt C, but does not fit on Bolt A. Bolt B and Bolt A are exactly the same. Will Nut A fit on Bolt B? a. Yes b. no c. Not enough info

    asked by Ingrid
  101. reading comprehension

    Which of the following is least like the others? a. bear b. elephant c. badger d. hamster

    asked by Ingrid
  102. reading comprehension

    Which of the following is least like the others? a. rotator b. deified c. racecar d. alright

    asked by Ingrid
  103. History

    1. What were the ideals of movement related to this medallion? @liberty of Congress A. abolition and suffrage B. freedom and abolition C. justice and temperance D. temperance and slavery 2. Based on the information in the poster below, which phrase best

    asked by Summer
  104. science help ASAP

    can someone Explain the process of succession plz

    asked by sunshine
  105. algebra 1

    The number of bagels sold daily for two bakeries is shown in the table. Bakery A Bakery B 53 34 52 40 50 36 48 38 53 41 47 44 55 40 51 39 Based on these data, is it better to describe the centers of distribution in terms of the mean or the median? Why?

    asked by Elena - Help please
  106. Chemistry

    Name the two functional groups found in benzyl acetate? Name the three functional groups found in PABA? Name the two functional groups found in Benzophenone

    asked by Anonymous
  107. Linear Algebra

    Consider the transformation T(ax^2 + bx + c) = 2ax + b of P2 → P1. (a) Find T((ax^2 + bx + c) + (px^2 + qx + r)). (b) Find T(k(ax^2 + bx + c)). (c) Find the image of 3x^2 − 2x + 1. (d) Determine another element of P2 that has the same image.

    asked by Anonymous
  108. Geometry

    Use the Law of Sines to find the missing angle of the triangle. Find m∠B given that c = 83, a = 44, and m∠A = 31. A. 76.3° B. 15.8° C. 72.7° D. 164.2° Need help on how I would go about doing this...step-by-step. Thank you!

    asked by Carpe_Diem
  109. Linear Algebra

    Transform the matrix A=[5,−3;1,1], into a matrix B using the similarity transformation (C^−1)AC, with matrix C=[3,1;1,1]. B=(C^−1)AC = ?

    asked by anon
  110. SCIENCE

    History of how this ginger has been used as medicine

    asked by coolguy123
  111. Physics

    A 100 hp motor raises a 200lb elevator 200 ft in 10 sec. The efficiency for the elevator system is 72.7% or 73%. How much energy is lost in 10 sec? Answer: 193 Btu Show work

    asked by Merrick
  112. Physics 101

    A storage tank of negligible mass and 30m high is filled with gasoline. What is the force that acts on a square access hatch at the bottom of the tank that measures 0.5m x 0.5m

    asked by Michelle
  113. Physics

    If a wheel turns around 6.00 complete rotations, what would the angular displacement of that wheel be in radians?

    asked by Em
  114. algebra 1

    Given the data set (5, 9), (13, 12), (23, 16), which of the following equations best represents a line of best fit? y = three fourths x − 7 y = four fifths x + 7 *** y = three over two x + 7 y = two thirds x − 7

    asked by Elena - Help please
  115. Math

    Simplify. Please show all your work and explain. 6a^3b^2/10a^5b^4

    asked by Chelsa
  116. Science

    What's the difference between the types of light detected by radio, refracting, and reflecting telescopes?

    asked by Anonymous
  117. History

    Four major candidates ran in the 1824 election, all under the "Democratic-Republican" name. One of the candidates, Andrew Jackson, was already famous. In the 1780s, he earned the right to practice law and served in various offices of the state government,

    asked by jai
  118. algebra 1

    Given the data set (5, 9), (13, 12), (23, 16), which of the following equations best represents a line of best fit? y = three fourthsx − 7 y = four fifthsx + 7 *** y = three over twox + 7 y = two thirdsx − 7

    asked by Peter
  119. Algebra

    The path of a baseball after being hit is given by the function f(x)= -.007x^2+x+4 where f(x) is the height of the baseball (in feet) and x is the horizontal distance from home plate (in feet). at what time will the baseball reach the maximum height?

    asked by Anonymous
  120. SCIENCE

    History of how this ginger has been used as medicine

    asked by coolguy321
  121. Math-check my work please??

    Write an equation, in point-slope form, for the line that is perpendicular to y – 10 = 3/2 (x – 4) and that passes through the point (4, 2). My Answer: Formula for point-slope form; y – y = m(x – x) Insert y and x value; y – 2 = m(x – 4) If the

    asked by Scarlet (Scar for short)
  122. Math

    Beta has a rope 23m long. She cutis off 1/5 of it.How long are the two pieces

    asked by Maria
  123. English

    The primary purpose of the passage is to __________. A. describe the best way to consume chocolate B. discuss current theories about chocolate and health C. give factual information about the history of cacao D. persuade readers that cacao originated in

    asked by Sarah Lott
  124. magh

    suppose you put money into teo different bank accounts. In account #1 you deposit $500 and you will be earning 6% interest compounded quarterly. in account #2 you deposit $600 and you will be earning 5% interest compounded annually. Which statement below

    asked by Sarah
  125. English Q's 1-5

    Read the following passage. Then answer questions 1-5 on the online portion of the Unit Assessment. From The Lost Prince By Frances Hodgson Burnett There are many dreary and dingy rows of ugly houses in certain parts of London, but there certainly could

    asked by Sarah Lott
  126. physics

    A net force of 1.6×10−15 N acts on an electron over a displacement of 7.1 cm, in the same direction as the net force. (a) What is the change in kinetic energy of the electron (joules)?

    asked by amanda
  127. Physics

    If the angular velocity, ω, changes from 7.07 rad/s to 24.2 rad/s over a time of 6.42 s, what is the angular acceleration, α?

    asked by Em
  128. Social Studies

    1.What led to increased trade between Europe and Asia A.The Black Death B.The Crusades C.The Hundred Years' War D.The Reconquista 2.Why Did Pope Urban II call for Christians to go a Crusade A.To Win Back The Roman Empire B.To Win Back Holy Land C.To

    asked by Sid.V
  129. algebra 1 math

    Given the data set (5, 9), (13, 12), (23, 16), which of the following equations best represents a line of best fit? y = three fourths x − 7 y = four fifths x + 7 *** y = three over two x + 7 y = two thirds x − 7

    asked by Peter ASAP HELP PLS
  130. History

    1. What were the ideals of movement related to this medallion? @liberty of Congress A. abolition and suffrage B. freedom and abolition C. justice and temperance D. temperance and slavery 2. Based on the information in the poster below, which phrase best

    asked by Summer
  131. Pre-Algebra

    The layer cake has both vanilla and chocolate frosting. What percent of the surface area of the cake (not including the bottom) is chocolate? Round your answer to the nearest tenth of a percent.

    asked by Anonymous
  132. English

    When assembling a writing plan for an essay, which of the following should come first? A. Material that catches the reader's interest B. The first section of the body of your essay. C. A brief summary of your conclusion (D. The general idea of your essay)

    asked by Jocelynn
  133. algebra i

    I'm a little confused at how to do this problem, could you check this to make sure I have it done right ? (x-4)^2 = 625 (undo square by square root) (x-2) = 25 (x+2) = 25 x = 27 x = 23

    asked by anonymous
  134. Physics

    A ball is attached to a center post by a string that is 0.382 m long. The ball is moving in a circle on a frictionless table top at a speed of 1.28 m/s with a radius of 0.382 m. What is the centripetal acceleration of the ball?

    asked by Em
  135. Math

    What is the rate of the current if a canoe travels 22mph

    asked by Nick
  136. Trigonometry

    A wheel has a 12 inch radius rotating at 620 RPM. What is the speed of the car in MPH?

    asked by John
  137. Math

    Could someone check my work? A 200-foot cliff drops vertically into the ocean. The angle of elevation from a ship to the top of the cliff is 22.3 degrees. How far offshore, to the nearest foot, is the ship? Tan(22.3) = 200ft/x xtan(22.3)=200ft

    asked by Matt
  138. Math

    What is 9weeks and 5 days - 1 week and 6 days. Also what is 1 decade and 8 years - 9 years

    asked by Essence loves math
  139. Physics

    A car is traveling around a bend at a speed of 12.4 m/s. The bend has a radius of curvature of 66.7 m. Friction is the only force acting towards the center of the circle. If the mass of the car is 862 kg, what is the force of friction required to make the

    asked by Em
  140. Math

    Another problem I need to confirm: A ship is 60 miles west and 91 miles south of the harbor. a) What bearing should the ship take to sail directly to the harbor? (Round answer to nearest tenth of degree.) b) What is the direct distance to the harbor? A)

    asked by Matt
  141. maths

    A vehicle travels equal distances at 60km/h and 90km/h.calculate its average speed

    asked by peter
  142. Physics

    Jason and Kim are attempting to push a heavy fridge across the kitchen floor. When Jason pushes it with a muscular force of 550. N, the fridge accelerates from rest to 28.0 cm/s in 3.50 s. When Kim pushes it with a muscular force of 560. N, the fridge

    asked by lost in life
  143. Chemistry

    If you had observed the fate of an ice cube at 25 degrees Celsius, what would you conclude about the spontaneity of the process H2O (s) H2O (l) ? I know for it to be spontaneous, delta G has to be negative, but how can I determine the delta G with the info

    asked by Chelsea
  144. History,Geograph and Tourism

    Can i be a bolice with this subjects ?

    asked by Bongani mpanza
  145. Math

    Liz has 50 ft of fence to put around rectangle garden. Her garden is going to be 10 feet eide. How long will the garden be

    asked by Haley
  146. History,Geograph and Tourism

    Can i be a police with this subjects ? *Tourism,history nd Geography

    asked by Bongani mpanza
  147. Math

    What is best • ½ pint of oil at $0.90, or • 1 pint of oil at $1.65, or • 2 pints of oil at $3.40, or • 5 pints of oil at $8.10 ? A ½ pint of oil at $0.90 B 1 pint of oil at $1.65 C 2 pints of oil at $3.40 D 5 pints of oil at $8.10

    asked by Sarah Lott
  148. math

    How can you write an equation of two test scores 97 and 88

    asked by jose
  149. algebra

    A ball is thrown straight up from a rooftop 9696 feet high. The formula below describes the​ ball's height above the​ ground, h, in​ feet, t seconds after it was thrown. The ball misses the rooftop on its way down. The graph of the formula is shown.

    asked by lisa
  150. Math

    How many ways can Amanda, Basil, Charles, Denis, and Edna sit in a row if Basil and Edna must sit together?

    asked by Max
  151. Math (Geometry!)

    What is the definition of complimentary angles? a. Two angles that add to be 180° b. Two angles that have a difference of 90° c. Two angles add to be 90° d. Two angles that have a difference of 180° I think the answer is B.

    asked by Sarah Lott
  152. Math (Geometry!)

    What angle is complimentary to 32° a.−32° b.148° c.58° d.32° im pretty sure the answer is going to be 32 degrees if it is complimentary agnle

    asked by Sarah Lott
  153. integration!!help urgently

    integrate:dz/(z^2+1) where z is a complex number.....plz working

    asked by david
  154. English

    What does the word "melancholy" mean? No multiple choice answers provided.

    asked by Sarah Lott
  155. Math

    How many arrangements of all the letters in the word WINNIPEG can be created if the N's cannot be together?

    asked by Max
  156. Spanish

    Choose the best answer to the following question. Cuantos minutos hay en una hora? a. cuarenta b. sesenta c. cincuenta d. setenta

    asked by Jennifer Matthews
  157. Precal

    How do i find the exact value for: (cos5pi/16)(cospi/16)+ (sin5pi/16)(sinpi/16)

    asked by Shelbie
  158. Math

    What is 9x + 3y - 8z in slope intercept form? y = mx + b

    asked by Azariah
  159. Math

    Rena knows a dollar coin has a mass of a little than 10 grams. She guessed that 1 kilogram of dollar coins would be worth dollars. Is this prediction reasonable ? Explain your thinking

    asked by Aidan
  160. Spanish Math Problem???????

    Choose the correct answer for the following problem. dieciseis + diecisiete = ? trienta y tres viente y dos cuarenta y siete cincuenta y nueve I don't know

    asked by Azariah
  161. math

    Alex bought 27 donuts from Dunkin Donuts. He ate 1/9 of the doughnuts. He took the remaining donuts and share them equally amongst 12 classmates. How many donuts did each friend receive?

    asked by alex
  162. biology

    When chromatids separate during anaphase two (in meiosis), do all the maternal and paternal chromatids stay together or do they randomly separate into the daughter cells?

    asked by Larry
  163. Precal

    How do i get left side to equal right side? (Cos x)/(1+sin x) + (cos x)/(1-sin x) = 2secx

    asked by Bobbie
  164. Math

    A model car has a scale of 1:24, where the model dimensions are in the numerator and the actual dimensions are in the denominator. if the tires on the model have a diameter of 1/2 inch, how long is the diameter of an actual tire on the car?

    asked by Anonymous
  165. Physics

    Tom (65 kg) is standing on a scale in an elevator holding an apple. The elevator begins to accelerate downwards at 2.4 m/s2. (a) What does the scale read during this acceleration? (b) What is the acceleration of the apple with respect to Tom holding the

    asked by lost in life
  166. Math

    Is it easier to evaluate n^0 w^0 for n=-2 and w=3 by simplifying first or by substitute first ? explain

    asked by Anonymous
  167. Math

    You are setting up a system of programming codes for a universal TV remote. Each code will have five digits and cannot include a 0 or repeat any digits. How many codes: A) do not contain a 1? My answer: 8x7x6x5x4 = 6720 codes B)have 2 as the 2nd digit and

    asked by Rose
  168. Linear Algebra

    Diagonalize the matrix A = [1,1;-2,4] using a similarity transformation. Give the transformation matrices such that (C^−1)AC = D, where D is a diagonal matrix. (D, C) = ?

    asked by anon
  169. English

    I read play ecstasy of rita joe and I'm doing analysis paper on character of rita. I need to come with argument for thesis. I'm trying to say that she doesn't really listen and understand white people, and this trait of hers leads her to trouble but I

    asked by Mohammad
  170. math

    ribbon a is 36 centimeters long. ribbon b is 39 centimeters longer than ribbon a. what is the length of ribbon b ?

    asked by nikki
  171. math

    the temperature at 8 a.m. was 65 degrees. By 11 a.m. the temperature had increased 17 degrees. What was the temperature at 11 a.m. ?

    asked by dani
  172. Algebra 2

    Q: Write a quadratic equation with integral coefficients whose roots are -6+i and -6-i My Answer: x^2+12x+37 (first) sum=-12 product=37 (then) write equation using formula x^2-(sum)x+product Is my work and answer correct?

    asked by Bryan
  173. science

    You observed light passing through lenses and through a set of prisms. Why does refraction occur?

    asked by help pls
  174. Geography

    What is surprising of the geography of the European Union

    asked by Anonymous
  175. Physics

    A swimmer point directly to the North Shore of a 20.0 m wide river that has a current of 2.7 m/s [W]. If she can swim at 1.3 m/s in water; A. Draw an appropriate diagram for the question B. How long does it take her to cross? C. How far downstream does she

    asked by Ceara
  176. Algebra

    A man paid $7.80 for 5 The grams of peanuts and 3 kg of walnuts. Walnuts are $.20 a kilogram more than peanuts how much did she pay per kilogram for each

    asked by Scott
  177. math

    If i buy3 1/2 guart of orange. And my family drinks 3 cups each morning how many days will it last

    asked by juelz
  178. Geography

    Why was a charter created for the United Nations?

    asked by Anonymous
  179. math

    Herbert has a mass of 28 kilograms. his mother has a mass off 55 kilograms. how much heavier is Herbert's mother than Herbert ?

    asked by nikki
  180. Calculus

    1) A telephone company has 10,000 phones in a certain city where the basic rate is $4 per month. The officials have evidence that if the charge is reduced the number of phones will increase at an estimated rate of 1,000 phones for each 25 cent reduction.

    asked by Omar
  181. Math

    The game of euchre uses the 10s, jacks,queen,kings and aces from a standard deck of 52 cards. How many 5-card euchre hands have at least 2 red cards? Explain your reasoning. What is this question asking me to find, this is what I don't understand

    asked by Rose
  182. Geography

    What are the nations on the Security Council and why were they chosen as members? US,Russia,UK,France,China I'm not sure why they were chosen.

    asked by Anonymous
  183. Geography

    What are some of the humanitarian or social functions of the united nations

    asked by Anonymous
  184. Geography

    How is the United Nations able to impact international political relations of sovereign nations? What gives it that power?

    asked by Anonymous
  185. math

    Ore from least to greatest 6/2,-7/3,5/4,-1/3,4/3

    asked by bryan
  186. Math

    Jerry started doing sit-ups every day. The first day he did 19 sit-ups. Every day after that he did 2 more sit-ups than he had done the previous day. Today Jerry did 41 sit-ups. Write an equation that could be solved to find the number of days Jerry has

    asked by Merio
  187. Algebra

    I'm kind of confused on the problem in point slope form. Please show me step-by-step. Thank you. y-18.5=3.2/3(x-1)

    asked by Jalen
  188. Physics help pls

    Pls help me I have a test tmrw A block with mass 5kg slides along a horizontal floor under the action of a force 20N applied upward at an angle θ to the horizontal. The coefficient of kinetic friction between the block and the floor is μk = 0.4. Find the

    asked by Jamila
  189. PHYSICSS HELP

    3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

    asked by Simon
  190. PHYSICS HELP

    3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

    asked by Simon
  191. math help pls pls pls

    Choose the correct simplification of the expression the quantity a to the 2nd power over b to the 3rd power all raised to the 4th power. A. a to the 6th power over b to the 7th power B. b^12 C. a^8b^15 D. the quantity a to the 8th power over b to the 12th

    asked by Oscar
  192. math

    Marcela 527 donuts from Dunkin Donuts. She ate one ninth of the donuts. She took the remaining donuts and shared them equally amongst 12 classmates. How many donuts did each friend receive?

    asked by alex
  193. Physics

    3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

    asked by Simon
  194. Calculus

    A 15.5 foot ladder leaning up against the building .the base is 8.2 feet away from the building .how far up does the ladder reach against the building.

    asked by Vickie
  195. math

    Marcela 27 donuts from Dunkin Donuts. She ate one ninth of the donuts. She took the remaining donuts and shared them equally amongst 12 classmates. How many donuts did each friend receive?

    asked by alex
  196. math help pls pls pls

    Find the quotient of the quantity negative 36 times x to the 3rd power minus 6 times x to the 2nd power plus 12 times x all over negative 6 times x. −36x3 − 6x2 − 2 −6x2 + x − 2 6x2 − x + 2 6x2 + x − 2 pls help me

    asked by Oscar
  197. Physics

    With what maximum speed can an unsecured passenger stay in their seat on a Ferris wheel that has a diameter of 12 m.

    asked by Jules
  198. PHYSICS?

    1300 kg car rounds a banked curve of radius= 50m. If car traveling at 75 km/h and the coefficient of static friction between the tire and road is 0.45 ... 1.) what is the minimum angle of the bank needed to keep the car in the turn? 2.) If the car changes

    asked by Dina
  199. statistics of business

    A telephone company’s goal is to have no more than six monthly line failures on any 100 kilometres of line. The company currently experiences an average of three monthly line failures per 50 kilometres of line. Let x denote the number of monthly line

    asked by Yogeswar
  200. art

    For years, community art was created by a professional for the enjoyment or education of a public group. how did the definition change in the nineteenth century? a. community art was now also exhibited in museums. b. community art was now also created to

    asked by im new here
  201. chemistry

    what type of a ligand would 18 crown 6 ether be? hexadentate?

    asked by Anonymous
  202. Algebra

    Form a third degree polynomial function with real coefficients such that -7 + i and -9 are zeros

    asked by Robin
  203. Algebra 2

    Q: (x^2-9/x^2-5x)(5x-x^2/x^2-x-12)(x^2-8x+16/x-4) my answer: -1 How i solved: crossed multiplied 2 of the 3 sets of fractions the multiplied the answer to the remaining one and simplified. Can you check that my work is correct?

    asked by Bryan
  204. math help pls pls pls

    Find the quotient of the quantity negative 15 times x to the 2nd power times y to the 6th power plus 50 times x to the 4th power times y to the 3rd power minus 20 times x to the 2nd power times y all −3y5 + 10x2y2 − 4 −15x2y6 + 50x4y3 − 4 3y5 +

    asked by Oscar
  205. math help pls pls pls

    Four polynomials are shown below: A. 2 − 2x5 + 2x2 B. 5x3 + 5 − 5x4 C. 3x + 2x5 D. 6x3 − 1 Which of the above polynomials is a 5th degree binomial? Polynomial A Polynomial B Polynomial C Polynomial D pls help me

    asked by Oscar
  206. Biology

    Treehoppers have either purple, or green, or white skin. Other geneticists have determined that: (1) whenever one white treehopper is mated with another white treehopper all the progeny are white. (2) whenever two pure bred purple treehoppers are mated all

    asked by Jared
  207. physics

    Soft tissue has a linear attenuation coefficient in the range of μ = 0.35 cm−1 at 30 keV and μ = 0.16 cm−1 at 100 keV. For this problem we use μ = 0.21 cm−1, which applies at around 50 keV incident X-ray energy. (a) What fraction of X-ray photons

    asked by mar
  208. Physics

    An astronaut exploring a distant solar system lands on an unnamed planet with radius 3,860 km. When the astronaut jumps upward with an initial speed of 3.5 m/s, she rises to a height of 0.62 m. What is the mass of the planet to within 0.1%?

    asked by suveer
  209. physics

    Assuming that the equation Ephoton, final = Ephoton, initial/1 + Ephoton, initial/mec2 (1 − cos θ) can be approximately applied at all scattering angles θ, what is the minimum energy of a scattered X-ray photon if the incident X-ray energy is 76 keV?

    asked by m
  210. Biomechanics

    Jane is a 45 kg cyclist. If her bike weighs 100 N and she landed with her bike on the floor at a vertical reaction force of 890 N, what was her vertical acceleration during landing?

    asked by Matt
  211. Math

    The school store opened on the first day of scroll with 56 notebook and 24 pencils. Within two days it sold all of these items. On the first day, twice as many notebooks were souls as pencils. On the second day for every 5 notebooks sold, 2 pencils were

    asked by Manuel chua
  212. calc

    A farmer has a herd of 100 cattle with an average weight of 500 lbs/cow. It costs 50 cents a day to keep each cattle. They are gaining weight at a rate of 6 lbs per day. The market price is now $1 per lb for beef and is falling by 1 cent each day. How long

    asked by p
  213. physics

    A student holds a laser that emits light of wavelength 641.5 nm. The laser beam passes though a pair of slits separated by 0.400 mm, in a glass plate attached to the front of the laser. The beam then falls perpendicularly on a screen, creating an

    asked by James urgent
  214. Political science

    How did the Stamp Act, Boston Massacre and Boston Tea Party connect with the idea of representation? Use Zinn "Voices of a people's history of the united states" and the Federalist Papers to support your answer. Also, be sure to discuss the ideas of pure

    asked by TayB
  215. Chemistry

    What is the solubility of X in mol/dm3 if 25cm3 of its saturated solution contains 4.0g of X (Molar mass of X=60)

    asked by Toyety