Questions Asked on
February 9, 2015

  1. Algebra 1

    1) what is the simplified form of (x-2)(2x+3)? Use the distributive property. A) 2x^2-x-6 B) 2x^2-6 C)2x^2-7x-6 D) 2x^2 +x-6**** 2) what is the simplified form of (3x+2)(4x-3) use a table. A)12x^2+18x+6 B) 12x^2+x-6 C) 12x^2+18x-6**** D)12x^2-x-6 3) what

    asked by Tris
  2. science

    the process in which an animal's cells use oxygen and digested food molecules to release the energy in food is called 1. breathing 2. cellular respiration 3. diffusion*** 4. gas exchange

    asked by Anonymous
  3. Social Studies

    1.How does the amazon region best support the people of Brazil? a.by serving as a main artery of transportation b.by supplying fertile land for farming c.by providing forest rich with resources d.by protecting them from the encroachment of other people.

    asked by Anonymous
  4. physics

    A 27 g ice cube at −25◦C is dropped into a container of water at 0◦C. How much water freezes onto the ice? The specific heat of ice is 0.5 cal/g · ◦ C and its heat of fusion of is 80 cal/g. Answer in units of g.

    asked by Ion
  5. health

    True or false the endocrine system only regulates long-term changes in the body True*** False Which endocrine glad(s) are responsible for the changes associated with puberty? A. thymus gland B. reproductive glands*** C. thyroid gland D. pancreas Please

    asked by Anonymous
  6. economics

    If someone could help me with this question, that would really help. I'm just not sure what the formula would be? Suppose a market basket of goods and services includes the goods for two successive years. According to the table, between the years 2012 and

    asked by phoebe
  7. Math

    A stone was dropped off a cliff and hit the ground with a speed of 120 ft/s. Using the fact that acceleration due to gravity is −32ft/s2, what is the height (in feet) of the cliff?

    asked by Cole
  8. Math

    a circle is divided into 9 equal parts. What is the angle measure of two of those parts

    asked by Anon
  9. chemistry

    1. Find the molality of the solution prepared by dissolving 0.238g toluene, C7H8, in 15.8g cyclohexane 2. A pure sample of the solvent phenol has a freezing point of 40.85 degrees C. A 0.414 molal solution of isopropyl alcohol was observed to have a

    asked by kales
  10. Chemistry

    At the beginning of a titration to standardize the NaOH solution, Student A adjusted very carefully the initial burette volume to 0.00 mL, but he did not notice an important air bubble in the tip of the burette. At the end of the titration, the air bubble

    asked by kobe
  11. Chemistry

    Explain why the volume of 0.100 M NaOH required to reach the equivalence point in the titration of 25.00 mL of 0.100 M HA is the same regardless of whether HA is a strong or weak acid, yet the pH at the equivalence point is not the same

    asked by kobe
  12. math

    A quantity T is partly constant and partly varies as the square root of s. a) Using constant a and b, write down an equation connecting T and S. b) If S = 16, and when T = 24 and S = 36 when T = 32, find the value of the constants a and b.

    asked by kudu
  13. chemistry

    At 500 K in the presence of a copper surface, ethanol decomposesaccording to the following equation. C2H5OH(g) CH3CHO(g) + H2(g) The pressure of C2H5OH was measured as afunction of time and the following data were obtained. Time (s) PC2H5OH(torr) 0 250.

    asked by mathew
  14. Latin I

    1. Estne in Campania? a. where is Campania? b. he is in Campania, isn't he? c. he is not in Campania, is he? d. Is he in Campania? 2. Vesuviusne populum terruit? a. did vesuvius frighten the people? b. Vesuvius did not frighten the people, did it? c.

    asked by Jen
  15. Language Arts

    Which is the best restatement of these lines from "The Road Not Taken"? And sorry I could not travel both And be one traveler,.... A. I regret I couldn't take both roads. B. I regret I am only one person. C. I regret that I am traveling alone. D. I am

    asked by Calie
  16. math

    Yuri has a rope 12 meters long. He cuts into pieces that are 2 meters long. What fraction of the rope is one piece?

    asked by Anonymous
  17. Calculus

    An object has a constant acceleration of 72 feet per second squared, an initial velocity of 17 feet per second, and an initial position of 10 feet. Find the position function describing the motion of this object.

    asked by Anonymous
  18. Social Studies

    Officials whose jobs are not provided for in the constitution but are required by law are known as____ a constitutional officers b secretaries of state c deputies-**** d statutory officers True or False: The state Supreme Court is an appellate court a true

    asked by BUBBLES
  19. Language Arts

    On the surface, "The Road Not Taken" is about a walk in the woods. What is the meaning of the poem on a deeper level. A. It is about traveling through life with others to help you make decisions. B. It is about loving and protecting nature by not

    asked by Calie
  20. math

    a rectangular block has a square base of area 49cm square its height is 10 cm find its total surface area

    asked by shehzad
  21. chemistry (Bohr model)

    The second ionization energy of He is almost exactly four times the ionization energy of H, and the third ionization energy of Li is almost exactly nine times the ionization energy of H: IE (MJ mol-1) H(g) --> H +(g) + e- (1.3120) He+(g) --> He2+(g) + e-

    asked by Dylan
  22. Physics

    On October 9, 1992 a 12.3 kg meteorite struck a car in Peekskill, NY; leaving a dent 22 cm deep in the trunk. If the meteorite struck the car with a speed of 550 m/s, what was the magnitude of the acceleration (assuming it was constant)?

    asked by Ryan Simpson
  23. L.A

    Which is the best phrase of these lines from "The New World"? eagles/hie and/hover/above/the plain A. Eagles hurry and hung above the flatland B.Eagles hang in midair and wave their wings C. Eagles race and rush in an ugly way D. Eagles soar and swoop in a

    asked by Anonymous
  24. Language Arts

    TWO roads diverged in a yellow wood, And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth; 5 Then took the other, as just as fair, And having perhaps the better claim,

    asked by Calie
  25. math

    At the first meeting of the chess club, the 10 members decided that everyone in the club should play everyone else one time to determine the best players for the inter-school competitions. How many games had to be played?

    asked by sandra
  26. chemistry

    How much work is done when 2.0 liters of CH4(g) undergoes combustion in excess oxygen at 0 degrees Celsius and 1.00 bar (assuming the volume of water formed is negligible)?

    asked by Anonymous
  27. Calculus

    Use a(t)=-32 ft/second squared as the acceleration due to gravity. A ball is thrown vertically upward from the ground with an initial velocity of 96 feet per second. How high will it go?

    asked by Anonymous
  28. math (statistics)

    The following table shows the percentage of individuals in each age group who use an online tax program to prepare their federal income tax return. AGE ONLINE TAX PROGRAM (%) 18-34 16 35-44 12 45-54 10 55-64 8 65+ 2 Suppose a follow-up study consisting of

    asked by sarah
  29. English

    What does the "larger dome" refer to in Today by Billy Collins? If ever there were a spring day so perfect, so uplifted by a warm intermittent breeze that it made you want to throw open all the windows in the house and unlatch the door to the canary's

    asked by Anonymous
  30. Language Arts

    Diverged(branched off) In which sentence is diverged used correctly? A. Where the two roads diverged into one road, the traffic became backed up. B. The river flowed south and then diverged to the southeast and the southwest. C. The crowd was happy to be

    asked by Calie
  31. Chemistry AP

    Calculate the concentration of H3O + present in 0.377 M H2CO3. Answer in units of mol/L I know the Ka of H2CO3 is 4.3E-7. But I don't know what to do from there. (Or, I'm not getting the correct answer at least)

    asked by Ethan
  32. Calculus

    Use a(t)=-32 ft/second squared as the acceleration due to gravity. A ball is thrown vertically upward from the ground with an initial velocity of 56 feet per second. For how many seconds will the ball be going upward?

    asked by Anonymous
  33. Calculus

    The rate of growth of a particular population is given by dP/dt=50t^2-100t^3/2 where P is the population size and t is the time in years. The initial population is 25,000. Find the population function. Estimate how many years it will take for the

    asked by Anonymous
  34. College Physics

    A sled at rest is suddenly pulled in three horizontal directions at the same time, but it does not move. Paul pulls to the northeast with a force of 31 lb. Johnny pulls at an angle of 36° south of due west with a force of 52 lb. Connie pulls with a force

    asked by Sadarhri
  35. algebra

    The atmospheric pressure P in pounds per square inch (psi) is given by P = 14.7 e−0.21 a where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 12.31 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round

    asked by rita
  36. physics

    How fast do you need to swing a 180-g ball at the end of a string in a horizontal circle of 0.6-m radius so that the string makes a 33∘ angle relative to the horizontal?

    asked by Nathan
  37. Public speaking

    Early theories of communication viewed public speaking as: A. a one-way transmission of messages. B. a two-way transmission of messages. C. only possible through a medium. D. an any which way transmission of messages.

    asked by zizi
  38. Chemistry

    What is the uses of calcium tri oxo carbonate (iv) (caco3)

    asked by Ibrahim
  39. Language Arts

    In "The Road Not Taken" when Frost says two roads"....that morning equally lay/ in leaves no step had trodden black," he means that A. Both roads were covered in yellow leaves. B. Both roads were wet with dew. C. Neither road led to a place the speaker

    asked by Calie
  40. Physics

    Michael Jordan’s vertical leap was measured to be 122 cm. What was his takeoff speed, and how long would he be in the air?

    asked by Ryan Simpson
  41. science

    A marathon race is 26.22 miles. How many kilometers do the runners run?

    asked by kelly
  42. fundamental concepts

    The kind of time sense that's learned as one goes through the daily routine is called A. cultural time. B. social activity. C. pattern. D. personal exploration. answer is b.

    asked by Daniela
  43. math

    Integrated Math 1. The Overland Trail: Traveling at a constant Rate. Who will make it? Need help graphing 3 sets of data on one graph?

    asked by John
  44. Math

    Q. Lincoln valley elementary held its annul skating party and 3 fourths of the 400 students came. Of the students who came,1 fifths brought skates from home. How many students rented skates? A. Do I mulpite 400 by 3 fourths than get the answer than mulpite

    asked by Destinee
  45. statistics

    An automotive manufacturer has selected 10 car seats to study the Rockwell hardness of the seat recliner mechanism. A sample of 8 has an average of 44.795 and a standard deviation of 0.402. At 95% percent confidence level, what is the interval for the

    asked by t
  46. mathematics

    From an airplane at an altitude of 1200, the angle of depression to a rock on the ground measure 28 degrees find the horizontal distance from the plane to the rock?

    asked by ella
  47. math algebra

    a tabletop is shaped like a golden rectandle its lenth is 5 ft whats the able width

    asked by travis
  48. math

    how many total blocks would be needed to build the model for the given base plan [2] [1] [3] [1] [2] [2]

    asked by kiley
  49. Math

    1. At a basketball game, the ratio of the number of freshmen who attended to the number of juniors who attended was 3 to 4. The ratio of the number of juniors who attended to the number of seniors who attended was 7 to 6. What was the ratio of the number

    asked by Bethany
  50. physics

    A box of books weighing 349 N moves with a constant velocity across the floor when it is pushed with a force of 434 N exerted downward at an angle of 37.9◦ below the horizontal. Find μk between the box and the floor.

    asked by Erin
  51. math

    A cylinder container of radius 15 cm has some water in it. When a solid submerged into the water, the water level rises 1.2 cm. (a) Find, the volume of the water displace by the solid leaving your answer in terms of π (b) If the solid is a circular cone

    asked by kudu
  52. Chemistry

    A bumblebee flies with a ground speed of 15.2 m/s. Calculate its speed in miles per hour.

    asked by Aerial
  53. Chemistry AP

    Alright, this time, I know I have not mistyped my answer. Find the initial concentration of the weak acid or base in an aqueous solution of hydrazine (NH2NH2) with a pH of 10.16. Kb = 1.70 ×10−6 Answer in M I've tried going from 10^-pH then using that

    asked by Ethan
  54. science

    is this an open or closed system? baking soda reacting with vinegar

    asked by sammy
  55. Maths

    A roll of wire is 8m 9cm long. If i cut it off into 9 pieces of equal length, what will be the length of each piece?

    asked by Sivesh
  56. chemistry

    a 1.32g sample on unknown containing KHP as a component was titrated with 22.48mL of 0.105 M NaOH to a pheolphthalein end point. what is the weight percent of KHP in the unknown sample?

    asked by Anonymous
  57. maths physics

    A lift of mass 1500 kg is raised by means of a rope passing round a drum of diameter 1.50 m. Given that the lift is accelerating upwards at 0.255 m s-2, draw a free body diagram of the lift, calculate the tension in the rope, the moment applied to the drum

    asked by gale gale
  58. chemistry

    2SO2 + O2 = 2SO3 4.00 mols of SO2 5.00 mol of O2 in 2L of a container at 200 degrees celcius. Concentration of O2 is 2M calculate the Kc

    asked by boss
  59. Math

    After a busy day of orders, a florist has 6 roses, 7 lilies, 3 carnations, 35 chrysanthemums, 27 sunflowers, 18 violets, and 9 tulips left in her inventory. Part A: Write a ratio that compares the number of roses to the number of violets. Part B: Describe

    asked by Joe
  60. Basic Physics

    An unknown charge sits on a conducting spherical shell of radius 10 cm. If the electric field 15 cm from the center of the sphere has the magnitude 3.0E3 N/C and is directed radially inward, what is the net charge on the sphere?

    asked by BK
  61. Physics

    Calculate the final speed of a skier who skis down a 70.8 m high hill, if her initial speed is 2.18 m/s

    asked by Jessy
  62. English 10R - HELP!

    What's the importance of the simile: "We can't let them kill us like that, like cattle in the slaughterhouse" in Night by Elie Wiesel

    asked by Laruen
  63. Chemistry

    I know the equation 2NO + O2 --> 2NO2 A mechanism would be 2NO --> N2O2 (1) FAST N2O2 + O2 --> 2NO2 (2) SLOW How would i derive the rate equation with respect to [NO2] I've been trying but keep getting confused..

    asked by Sarah
  64. maths

    A body of mass 11kg falls freely from rest from a height of 15m above the ground. 3m above the ground it breaks through a thin roof before continuing its fall. (a) given that the work done in breaking through the roof is 130 J. Calculate the velocity of

    asked by gale gale
  65. English 2

    In Our Town, by Thorton Wilder, what does the rain symbolize?

    asked by Taylor
  66. enlish

    are traditional African marriages an advantage for men only, not women

    asked by elcon
  67. ds 71

    A company sells its product for $79. The company has marginal costs of $37 and annual fixed costs of $95,000. What is the annual total cost to produce 8,500 units of its product?

    asked by niki
  68. Chemistry

    For the following reaction 2NO2 -> 2NO +O2 is second order reaction. If the initial concentration of NO2 is 0.098M and the initial rate of disappearance is 2.72e-3 M/sec , what is the value of the rate constant?

    asked by Cole
  69. Trigonometry

    Find cotangent theta given that cosecant theta equals -3.5891420 and theta is in the third quadrant. I was using the trig identity 1+cot^2theta=csc^2theta I wanted to isolate cotangent so I plugged in 1/sin (-3.5891420) and then squared my answer. I then

    asked by Maddy
  70. Geometry

    Find the ratios of the perimeters and areas of the pairs of two regular pentagons with corresponding sides that measure 48cm and 54 cm.

    asked by rhianne
  71. Math

    Lori has 14.25 cups of cupcake batter. If each cupcake uses 0.75 cups of batter. How many cupcakes can Lori make?

    asked by Amy
  72. physics

    a basketball player tries to make a half court jumpshot releasing the ball at the height of the basket assuming the ball is lunch at 51 degrees 14 meters from the basket what velocity musta player give the ball

    asked by Anonymous
  73. Social Studies

    What is one way Saudi Arabia and Iraq would not have to depend on oil?

    asked by Please help
  74. Algebra 2

    find the real solutions of each equation by graphing. 2x^4=9x^2-4 15x^4=11x^3 + 14x^2

    asked by Zach
  75. engineering science n2

    A stone with a mass of 6kg is thrown vertically upwards from the top of a building 35m high with a starting velocity of 20m/s. The time it will take to reach its maximum height

    asked by mpume
  76. physics

    A lift of mass 1500 kg is raised by means of a rope passing round a drum of diameter 1.50 m. Given that the lift is accelerating upwards at 0.255 m s-2, draw a free body diagram of the lift, calculate the tension in the rope, the moment applied to the drum

    asked by gale gale
  77. Physics

    I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30

    asked by Baxter Reus
  78. english

    One of the reform movements that arose during the "freedom's ferment" of the early nineteenth century was a drive for greater rights for women, especially in the political area. Women were heavily involved in many of the reform movements of this time, but

    asked by Robb4301
  79. chemistry

    How many moles of H2S would we expect to be formed by reaction if 3.50 moles of HNO3 reacted completely?

    asked by wendy
  80. Math

    What is 7/8-5/6 in simplest form? Please explain how to get your answer.

    asked by Nadia
  81. math

    A and B are twos 360 km apart. An express bus departs from A at 8 a.m. and maintains an average speed of 90 km/h between A and B. Another bus starts From B also at 8.m. and moves towards A making four stops at four equally spaced points between B and A.

    asked by king
  82. Math

    A circle is divided into 18 equal parts.How many degrees is the angle for each part? How many degrees is the angle for 5 parts into ?

    asked by Bryan
  83. math

    A box in the shape of a rectangular prism has a dimension of 30 meters x 27 meters x 28 meters. What is the surface area of the box?

    asked by sam
  84. Physics

    Assume the brakes in your car create a constant acceleration of 4.2 m/s2 regardless of your speed. How long does it take to stop if you are initially traveling 50 km/h? What distance do you go while stopping? Repeat the calculations for an initial speed of

    asked by Ryan Simpson
  85. Math

    1. The ratio of the number of dimes to the number of pennies in a purse is 3 to 4. If 3 pennies are taken out of the purse, the number of dimes and the number of pennies in the purse will be equal. How many dimes are in the purse? (Answer key says 9- and

    asked by Wendy
  86. Percentages

    A team has won 60 percent of the games it has played so far. If the team wins the 15 remaining games in the season, it will have won 80 percent of the season's games. How many games will the team play over the entire season?

    asked by Lily
  87. maths

    A body of mass 11kg falls freely from rest from a height of 15m above the ground. 3m above the ground it breaks through a thin roof before continuing its fall. (a) given that the work done in breaking through the roof is 130 J. Calculate the velocity of

    asked by gale gale
  88. Physics

    A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 23.7 minutes at an average speed of 6.31 m/s. During the second part, she rides for 25.0 minutes at an

    asked by Emily
  89. linear algebra

    If possible, solve the following linear systems by Cramer's rule. 2x1 + 4x2 + 6x3 = 14 x1 + 2x3 = 0 2x1 + 3x2 − x3 = 30

    asked by hannah
  90. reading and literature

    what does "Create an original fable with a clear moral" mean ? Am I supposed to make up my own story ?

    asked by ciara
  91. chemistry

    If ∆G˚= -190.60 kJ of the reaction H2+Cl2 2HCl , what is the ∆G at -10.5˚C of the system if the pressure of H2=3.2atm and the pressure of Cl2=9.7atm and the pressure of HCl= 7.65atm ?

    asked by Cole
  92. Physics

    I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30

    asked by Baxter Reus
  93. Calculus

    If Y = SecXTanX, find y" 4y' 4y. I can easily do the second part of the question if I could if only I could find d first and second derivative of SecXTanX, pls do help.

    asked by Francis
  94. Physics

    0.5kg of orange squash at 30 degrees celcius is placed in a refrigerator which can remove heat at an average rate of 20J/s.How long will it take to cool the orange squash to 5 degrees celcius (the specific heat capacity is 4200J/kg degrees celcius)

    asked by Elisah
  95. statistics

    A manufacturer of light bulbs has sampled 40 bulbs in order to determine the population mean life of the bulbs. The sample mean was 1,200 hours with a standard deviation of 100. The manufacturer would like to know, with 95% confidence, the interval values

    asked by t
  96. statistics

    A sample distribution (closely approximating a normal distribution) of a critical part dimension has an average of 11.85 inches and a sample standard deviation of 1.33 inches. The lower specification limit is 11.41 inches. The upper specification limit is

    asked by t
  97. maths

    A lift of mass 1500 kg is raised by means of a rope passing round a drum of diameter 1.50 m. Given that the lift is accelerating upwards at 0.255 m s-2, draw a free body diagram of the lift, calculate the tension in the rope, the moment applied to the drum

    asked by gale gale
  98. trig

    A man is between two tall buildings 8m away from the taller building. If the angle of the top of the building from where he stans bears N 8degrees W for the taller one and N 12degrees E for other. How far is he from the other building if the taller

    asked by Sam
  99. math

    suppose im trying to build a rectangular garden but I only have 24 meters of fence to use. so what is the largest area I can make my rectangular garden? please help I don't get it! I have to use the USE format and I don't get the question can you just

    asked by rebecca
  100. Physics

    A proton is initially at rest in empty space, when suddenly an electric field of magnitude 8.0 x 10 4 n/c and direction due east is turned on. what is the magnitude and direction of the initial acceleration of the proton? Repeat the problem, but with an

    asked by BK
  101. math

    An object is thrown vertically so that its height in feet above the ground x seconds after it is thrown can be found using the following quadratic function f(x)=-16x^2+64x+80

    asked by joe
  102. Physics

    I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30

    asked by Baxter Reus
  103. Mat104

    ind the future value, using the future value formula and a calculator. (Round your answer to the nearest cent.) $955 at 5.5% compounded quarterly for 3 years

    asked by Tasha
  104. Math

    Suppose you find the ratio of the lengths of adjacent sides in a parallelogram. This ratio is equivalent to the ratio of the adjacent sides in another parallelogram. Are the figures similar? Explain.

    asked by Stephanie
  105. accounting

    What is the amount of the tax liability for a single person having taxable income of $59,200? All answers should be rounded to the nearest dollar.

    asked by Anonymous
  106. Chemistry

    The following reaction has ΔG° = -190.60 kJ: H2(g) + Cl2(g) ⇌ 2 HCl (g) All three gases are placed in a sealed vessel. What is the ΔG at -10.5 °C of the system if the pressure of H2 is 3.2 atm, the pressure of Cl2 is 9.7 atm, and the pressure of HCl

    asked by Cole
  107. math

    if a driver is at an acute angle and wants to be completely straight as she enters the pool. what will be the measure of the angle her body will form then?

    asked by corey
  108. Geometry

    The areas of two similar triangles are in the ratio 36:25. If one side of the larger triangle is 60cm, what is the length of the corresponding side of the other triangle?

    asked by rhianne
  109. Vector Cross & Dot Product

    Given vector a=(2,1,0)and vector b=(-1,0,3) and vector c=(4,-1,1), calculate the following triple scalar and triple vector products. 1. c x a dot b What I did: c x a = ((-1)(0)-(1)(1), (1)(2)-(4)(0), (-1)(2)-(4)(1) =(-1, 2, -6) (cxa) dot b =(-1,2,-6) dot

    asked by Annon
  110. PSC

    If y is directly proportional to x and y = 65 when x = 33, find y if x = 44 . (Round off your answer to the nearest hundredth.)

    asked by Lisa
  111. Statistics

    Suppose we have yo estimate the average number of purchases in a given hour in a given hour at a convenient store. Using this example describe in your own words how you would go about this determining this average through: A.) Drawing a random sample B.) A

    asked by Phyiss
  112. Lusaka business and tecnical college

    A uniform rod AB is 2m Long. The rod, which exerts a downward force of 60N at its center, is placed on a knife edge support positioned 0.8m from A. Determine the vertical downward force required at A to prevent rotation.

    asked by Isaac
  113. Calculus

    Write the definite integral for the area of the region lying in the upper half of the ellipse given by 4x^2+y^2=4

    asked by Anonymous
  114. Pre-Calculus

    A corpse was discovered in a motel room at midnight and uts temperature was 82°F. The temperature dropped to 80.5°F two hours later. Given k is a constant for the object in question, S is the surrounding temperature, t represents the time and theta(of

    asked by Guadalupe
  115. maths

    Draw a right -handed rectangular reference frame with axes ranges x = -5 to +5, y = -5 to +10 , z = -5 to +5. Sketch the following planes on your reference frame. X-y plane passing through z =5, y-z plane passing through x = -2, z-x plane passing through y

    asked by gale gale
  116. Chemistry

    how do you make 50ml of .1 molar solution of benzylamine in acetonitrile

    asked by Dina
  117. Biology

    If the number of ___ in an atom is changed, an ion will be produced. a)proton b)neutron c)electron Could be multiple answers

    asked by Macy
  118. Math

    Makala made 32 of 60 free throws. What is the experimental probability that Makala will not make the next free throw she attempts. Would it be 8 out of 15 and do u divide

    asked by Mary
  119. Calculus

    Can someone show me a step by step process, along with explanations on how to do this problem? Thank you. :) Evaluate the integral ∫ [(x^2 - 1)/(x^2 + 1)]dx?

    asked by Aria
  120. math

    The radius of circle is given as 2.8 cm to 2 significant figure (a) If C is the circumference of the circle, determine the limits between which C/π lies. (b) By taking π be 3.14; find to 4 significant figures the line between which the circumference lies

    asked by John
  121. English

    1. She sucked a mint. 2. She sucked on a mint. 3. She sucked at a mint. 4. Stop sucking your thumb! 5. Stop sucking on your thumb! 6. Stop sucking at your thumb! 7. The baby sucked its mother's breast. 8. The baby sucked at its mother's breast. 9. The baby

    asked by rfvv
  122. Science

    I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30

    asked by Baxter Reus
  123. Vectprs and Scalars

    Why are some of these scalars and others are vectors? What's the difference and how can you tell? 1. a dot (b x c) 2. (a dot b) x (b dot c) 3. (a + b) dot c 4. a x (b dot c) 5. (a x b) dot (b x c) 6. (a + b) x c 7. a dot (b dot c) 8. (a x b) + (b x c) 9.

    asked by annonymous
  124. maths

    solve the following system of linear equation by matrix method:- 12p+4q+17r+11s=5 14p+8q+9r+4s=8 3p+7q+2r+5s=12 5p+12q+9r+7s=7

    asked by saloni
  125. English

    I have to write a poem or a story for my English class. Do you have any ideas?

    asked by Ben
  126. math,algebra

    Suppose that the perimeter of a rectangle is 48 ft and the length is thrice the width. What are the idmensions of this rectangle and what is the area?

    asked by keisha
  127. math

    Nicole is making a bowl of chex mix to serve her guests.She has already put 45 cups of nuts.410 cups of raisins and 112 cups of chocolate chips in the bowl,If she wants to make four cups total, how much chex cereal will she need to add?

    asked by gary
  128. Math

    Adam wants to compare the fractions 2/5, 1/6 and 1/3. He wants to order them from least to greatest and rewrite them so they all have th same denominator. Explain how Adam can rewrite the fractions.

    asked by Ash
  129. science

    1) The force of gravity on the moon is 1/6 the force of gravity on earth. If you had a 1 kg box of cereal on earth which had a weight of 2.4 N, what would its mass be on the moon? why? 2) what is the volume of a textbook with dimensions 21.3 cm, 27.5 cm,

    asked by kid
  130. Math

    The distance from the pole in the center of the tetherball circle to the painted circle is about 6 feet. What was the approximate radius of the tetherball circle?

    asked by Andrew
  131. Biology

    A change in the number of ___ will change the mass of a given atom. a)proton b)neutron c)electron

    asked by Macy
  132. math

    Davida bought a pair of earrings, each in the shape of an isosceles triangle with equal side lengths of 24 mm and a base length of 16 mm. She used one earring to make another pair of earrings, similar in shape, with the base length equal to 11 mm. What is

    asked by amber
  133. Math 110

    Find intervals of increase/decrease and classify all critical points of (a)g(x)=cos(􏰀x/(x2 +9)) (b) f(x)=x5/3 −x2/3

    asked by Paula
  134. Math

    What is 100^2-99^2+98^2-97^2+96^2-95^2 +...+ 4^2-3^2+2^2-1^2 ? (Find an expression where n is the largest number being squared, then use it to calculate the sum when n = 100. Hint: Examine specific cases where n is small. Then generalize).

    asked by Erika
  135. math

    Unroll has 6 yards of ribbon. She needs 1/5 to make 1bow. How many bows can she make? Explain how to write the equation an by using representation

    asked by Anonymous
  136. Math

    To make granola, mix together 3/8 of a cup of cereal with 1/6 of a cup of honey. How many cups of granola will the recipe make?

    asked by Damarious
  137. physics

    a basketball player tries to make a half court jumpshot releasing the ball at the height of the basket assuming the ball is lunch at 51 degrees 14 meters from the basket what velocity musta player give the ball

    asked by Anonymous
  138. Finance

    The Joseph Company has a stock issue that pays a fixed dividend of $3.00 per share annually. Investors believe the nominal risk-free rate is 4 percent and that this stock should have a risk premium of 6 percent. What should be the value of this stock? TO

    asked by Sassy
  139. Math

    A bowl contained 68.1 grams of salt. Then, Latoya poured in another 28.49 grams. How much salt does the bowl contain now

    asked by Haylee b
  140. math

    Find two numbers (exactly) whose product is 10 and whose sum is 18.

    asked by Anonymous
  141. Algebra 2

    solve each equation. check for extraneous solutions. sqrt(2x+1)+sqrt(2x+6)=5 please show work!!!!!

    asked by maria
  142. Percentages ques 2

    car A costs 20 percent less than car B. Car B costs twice as much as Car C. The cost of Car C is what percent of the cost of Car A? How do I set up this question? What should the process of thinking be for these questions?

    asked by Lily
  143. algibra

    The number of students in each homeroom class in Jim’s school is shown in the stem-and-leaf plot below. Number of Students in Each Homeroom Class 1 7 8 8 9 9 2 0 2 3 4 5 8 8 8 3 2 3 4 7

    asked by ok
  144. french

    Ce que or ce qui? 1. _______ est evident pour tout le monde, c'est la raison de cette manifestation. 2. _________ le gouvernement va creer, ce sont des emplois pour les jeunes. I am having difficulty understanding when to use ce que or ce qui in a sentence

    asked by rose
  145. trig

    From post C, An airplane and a helicopter travel to different islands.The plane travels.415 km N 60degrees45minutes E to island A. and the helicopter travels to island B at S 19degrees5minutes E for 120 km. what is the distance between tthe two island

    asked by Kelly
  146. Math Probability Outcome

    A drawer contains 8 white socks and 5 black socks if two socks are chosen and you get 2 pair of white socks what is the probability outcome???

    asked by Anonymous
  147. math

    ) Among the integers from 1 to 10, 000, 000, 000 which are there more of: Those in which the digit 1 occurs or those in which it does not occur? please prove

    asked by teach
  148. algebra

    Use the formula d = 1.22ãx to estimate how many miles a 5-foot-tall person can see standing on the deck of a ship that is 50 feet above the ocean.

    asked by Thomas
  149. math

    srry. the question was I have a rectangular garden and I only have 24 meters of fence to go around it. so what is the largest area I can make the rectangular garden. thanks for your time and sorry for bothering! I just need help to figure this out.

    asked by rebecca
  150. Calc

    1.) Evaluate Lim x->0 (tanx/x) 2.) Find the equations of the lines that pass through the point (0,-2) and are tangent to the graph of y=x^2 3.) Find (d^2*y)/dx^2 and (dy/dx)^2, given that y=7x

    asked by Anonymous
  151. Math- Calculus

    I need help with these problems, I cannot find a similar example to help me in the book: 1. Find lim x->infinity (e^(-2x) + sin x). 2. Find the derivative of sqrt(9-x) using the limit process. 3. Find lim x-> -infinity (x + sqrt(x^2 + 2x)). 4. Show that

    asked by Amber
  152. Cross Product of Vectors

    Find a unit vector perpendicular to a=(4,-3,1) and b=(2,3,-1) What I did: a x b = ((-3)(-1)-(3)(1), (1)(2)-(-1)(4), (4)(3) - (2)(-3)) =(0,6,18) Answer is (0, 1/square root 10, 3/square root 10)

    asked by annonymous
  153. Language Arts

    Poor restless dove, I pity thee; And when I hear thy plaintive moan, I mourn for thy captivity, And in thy woes forget mine own. To see thee stand prepared to fly, And flap those useless wings of thine, And gaze into the distant sky, Would melt a harder

    asked by Anonymous
  154. organic chemistry

    What is the negative part reagent in the markovnikov's rule ? It's urgent ...

    asked by radhika bahl
  155. math

    a rectangular block has a square box is 486 cm find the length of an edge of this box

    asked by shehzad
  156. Differentiation

    If Y = e^tanx, find dy/dx

    asked by Francis
  157. stats

    If Gallup has used an sis of size n=1021 and obtained the sample proportion p= 0.52 ,you can calculate that the margin of error for 95% confidence would be

    asked by ben
  158. Physics

    When going up stairs does a person who has more mass do more work and exert more power?

    asked by Taylor
  159. College physics

    How much work (kJ) must a car produce to drive 239 miles if an average force of 369 N must be maintained to overcome friction?

    asked by Jessy
  160. math

    Kim has $4.75 in nickels and dimes. If she has twice as many dimes as nickels, how many of each coin does she have?

    asked by Irene Wu
  161. Biology

    if the number of ____ in an atom is changed, it is no longer the same element. a)proton b)neutron c)electron I'm thinking it's A, what do you think? It could be multiple answers, too.

    asked by Macy
  162. maths

    Show weher the equation is exact and find its primitive (3e^3x y - 2x)dx + e^3x dy=0

    asked by ceasar
  163. Calculus

    Sketch the region enclosed by the curves x= 49-y^2 and x = y^2 - 49. Decide whether to integrate with respect to x or y. Then find the area of the region.

    asked by Jason
  164. Biology

    The chemical reactivity of an atom is determined by the number of ___ present. a) proton b) neutron c) electron could be multiple answers.

    asked by Macy
  165. physics

    What is an object that is launched into the air and undergoes free fall

    asked by shimmy
  166. Math

    Let f(x) = 2x + 1 − sin(x), how many roots does f(x) have in the interval [−π, π]? Use the next steps to prove that it has only one root. a) Use the Intermediate Value Theorem to show that f(x) has at least one root. (b) Explain why f(x) is

    asked by Paula
  167. math algebra

    how do you factor 3x^3y+x^2y^2? i kind of don't understand the concept of factoring can you help? Thanks.

    asked by G.G
  168. Chemistry

    Phenolthalein is a weak acid, explain what it means to be a weak acid and look up phenolthalein’s pKa.

    asked by kobe
  169. Math

    I am lost helping my 3rd grade granddaughter... This is what this problem shows and nothing else What property does this show? ****=* * * *

    asked by Karen
  170. chemistry

    Which region of the color spectrum does 14 x 10^16 exist in? I can't figure out this question but I got all the others

    asked by alyssa
  171. Corporate Finance

    Newcastle auto plc has a current cash flow of 4.4 million and pays no dividends. The Present value of the company ´s future cash flows is 74 million. The company is entirely financed with equity and has 800.000 shares outstanding. Assume the dividend tax

    asked by Joey
  172. Math

    Helping 3rd grade granddaughter and I am lost What property does this show? ****=* * * * This is all that is shown

    asked by Karen
  173. MATH - exponent laws

    how do you evaluated this? (-)sign ↓ _ __________( -11/-17)^-10 line is divide (9/5)^1/10

    asked by JK
  174. Basic science

    What is the uses of (caco3)

    asked by Ibrahim
  175. Math

    Familling new carpet and wants to know how much carpert they need , but they olso know that carpet is sold by the square yard. 23feetx9feetx6feet x 3feetx10 feetx19feet

    asked by Raul
  176. math

    Solve the equation cos (3θ +120°) = √(3 /2 for 0° ≤ θ≤ 180°

    asked by dbo
  177. Algebra 2

    Solve each equation. x^4 -x=0 x^4-81=0

    asked by Zach
  178. University Physics II

    1. A voltage of 13 V is applied across the ends of a piece of copper wire 8 cm long. The mass of an electron is 9.11 × 10−31 kg and its charge is 1.6 × 10−19 C. What is the magnitude of the electron’s acceleration? Answer in units of m/s2. 2. After

    asked by Anonymous
  179. Algebra 2

    solve each equation. check for extraneous solution. sqrt(3x+4)-sqrt(2x-7)=3 please show work!!!!!

    asked by maria
  180. math

    You will receive Sh. 20,000 five years from now. The discount rate is 8 percent. What is the value of your investment today?

    asked by jeri
  181. Algebra 2

    simplify each expression. rationalize all denominators. assume that all variables are positive (1-sqrt(3x))/(sqrt(6x)) Please show work!!!!

    asked by maria
  182. math

    They're 32 more apples than oranges at a fruitstand. Howany apples and oranges could there be?

    asked by Jose
  183. physics

    would someone in a lift feel lighter or heavier as it accelerated upwards? explain your answer.

    asked by gale gale
  184. Math Probability Outcome

    A drawer contains 8 white socks and 5 black socks if two socks are chosen and you get 2 pair of white socks what is the probability outcome???

    asked by Anonymous
  185. economic theory

    assume that a business firm produces two commod ities, X and Y, with two different inpu ts, Labour (L) and Capital (K). The total quantities of L and K available per un it of time are specified as L = 1600 labour hours; and K = 20 00 units. In addition,

    asked by john
  186. Math Question

    Hello! I need help with this question. I have an answer but I wanted to make sure it's correct. Thanks! Question: Which of the following is NOT a trigonometric identity? Answers Given: A.) 1-cos^2x=sin^2x B.) sin^2x+1=cos^2x C.) 1+cot^2x=csc^2x D.)

    asked by Lily
  187. Vb

    What is the error in the following array declaration ? Dim intA(4) As Integer = (23,12,-15,76)

    asked by Denise S
  188. Physics

    How do I find the recoil velocity of the earth immediately after the popper popped?

    asked by Kim
  189. science

    What happens when a charged object (plastic) is brought close to another oppositely charged object (glass).

    asked by thi
  190. Grade 9 French

    I need help I'm trying to find a rap to help me with the present and irregular verbs

    asked by Melanie
  191. math

    The curve y= ax^3 -3x^2 -2x + 1 has the gradient 7 when x = 1. Find the value of a.

    asked by kudu
  192. physics 105

    How many cubic feet will 44lb of CO2 occupy at STP

    asked by marcus
  193. math

    If someone can explain how to do this problem so I can learn and understand. you have a sample of 50 people. Based on the histogram, find the proportion of weight loss values in the sample that are less than 10 pounds. Write your answer as a decimal, and

    asked by Mary Ann
  194. Biology

    The nucleus of an atom will NOT contain a)proton b)neutron c)electron could be multiple answers

    asked by Macy
  195. Biology

    Why do males have a higher blood pressure than females

    asked by Avery
  196. math

    The position of two towns X and Y are given to the nearest degree as X(45° N, 10° W) and Y (45 N°, 70° W). Find (a) The distance between the two towns in (i) Kilometers ( take the radius of the earth as 63711) (ii) Nautical miles ( take I nautical mile

    asked by kudu
  197. math

    If You Have 6,7.2,4.8,10,and 6 on A triangular prism What is the length width and the height

    asked by La'Derica
  198. Vb

    What is the error in the following array declaration? Dim intA(4) As Integrr = (23,12,-15,76)

    asked by Denise S
  199. English

    could You help me with this sentence and combine it together please? they should be able to save more money because they are sharing expenses. If they shared expenses they could save money and be able to get their own place to live.

    asked by antonio
  200. arithmetic progressions

    how to know whether i should use formulaes in this question or that question becoz i colllapsed and put the formulae to another question

    asked by vanisri
  201. english

    Summary of best seller??

    asked by teju
  202. ant 101

    What is purdah

    asked by rebbie
  203. math

    the grade of 8 students on a 10-point test were 1,3,5,5,7,8,9,10 comute the mean of these scores

    asked by Anonymous
  204. 3 rd grade Math

    how are perimeter and area? When building your club house did you have a more difficult time finding the perimeter or area? why?

    asked by Mary
  205. Business Math

    Newcastle auto plc has a current cash flow of 4.4 million and pays no dividends. The Present value of the company ´s future cash flows is 74 million. The company is entirely financed with equity and has 800.000 shares outstanding. Assume the dividend tax

    asked by Joey