Questions Asked on
October 29, 2013

  1. math

    find an equation of the line with the given slope that passes through the given point. write the equation in the form Ax+By=C M=3/2, (7,-3)

    asked by ann
  2. math

    how to find out y intercept on a graph and slope of the graph

    asked by larry
  3. math

    find an equation of the line passing through the pair of points. write the equation in Ax+By=C (-9,7), (-10,-4)

    asked by ann
  4. physics

    A velocity selector consists of electric and magnetic fields described by the expressions vector E = E k hat bold and vector B = B j hat bold, with B = 0.0140 T. Find the value of E such that a 670 -eV electron moving along the negative x axis is

    asked by Suhani
  5. PHYSICS

    A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field.

    asked by Kathy
  6. brief calculus

    I have everything right but the last question asking how many cases per week The consumer demand equation for tissues is given by q = (97 − p)^2, where p is the price per case of tissues and q is the demand in weekly sales. (a) Determine the price

    asked by Kyle
  7. Math

    What is 6(a+7) when a=8

    asked by Karina
  8. PHYSICS

    The magnetic field of the Earth at a certain location is directed vertically downward and has a magnitude of 54.0 µT. A proton is moving horizontally towards the west in this field with a speed of 6.00 ✕ 106 m/s. (a) What is the direction and magnitude

    asked by Kathy
  9. GCC

    PREDICT THE REACTION MG(NO3)2(AQ)+NA(S)

    asked by Maria
  10. Economics

    The market equilibrium price for coffee beans in Ecuador is $2.75/pound, a price at which growers are unable to make a profit. Due to the lack of profits, many growers have stopped production and the output of coffee beans has fallen from 400 tons per year

    asked by Jay
  11. Gen Chem 2

    How many equivalence points would be visible for a solution of 1.0M sulfurous acid titration. Is it just two because in H2SO3 there are two H+ ions?

    asked by Kyle
  12. algebra/math

    A jacket costs $89.25 with 5% sales tax..what was the original price?

    asked by syd
  13. Math

    Jasmine has taken an online boating safety course and is now completing her end of course exam. As she answers each question.,the progrss bar at the bottom She has just completed question 16 and the test bar how she is 20% of questions. How many total

    asked by Jennifer
  14. Business Math

    1. Lee Holmes deposited $16,700 in a new savings account at 6% interest compounded semiannually. At the beginning of year 4, Lee deposits an additional $41,700 at 6% interest compounded semiannually. At the end of year 6, what is the balance in Lee’s

    asked by Lara
  15. physics

    A 0.40kg piece of putty is dropped from a height of 2.9m above a flat surface. When it hits the surface, the putty comes to rest in 0.32s . What is the magnitude of the average force exerted on the putty by the surface? I keep getting 9.4 as the answer,

    asked by Jen
  16. Introduction to Computer and Network Hardware

    LAN for local library: benefits,protocol,topology of LANS, elements of a backbone

    asked by Linda
  17. English

    'Self-portrait'. Describe yourself. In your description you should try to capture what makes you unique. Write about 350-500 words.

    asked by Ally
  18. science

    During standardization of permanganate solution using sodium oxalate, can the titration between Mno4- and C2o42- at 25degree celcius be perform? state the reasons.

    asked by Angela
  19. math

    A salmon has to swim 25 miles upstream. It swims 7 miles each day and drifts back 5 miles each night. How may days it take for the salmon to first reach 25 mile mark?

    asked by Sid
  20. algebra

    Write the quadratic function in vertex form: f(x)=

    asked by Anonymous
  21. English 10th Grade

    Descriptive writing (300-500words) 'by the waterside' Describe some of the people and activities that make place there.

    asked by Asley
  22. STAT

    Suppose adults in a particular town drive a mean of 65 mph with a standard deviation of 15 mph. Using the normal curve table, a.What percentage of adults drive below 35 mph? b.What percentage of adults drive below 68 mph or above 85 mph? c.What percentage

    asked by Jacky
  23. Maths

    The line segment connecting two points (-2,7) and (4,-1) can be expressed in parametric equations as x=-a+bt, y=c-dt (0

    asked by CHRIS
  24. Calculus

    Suppose f(x)= 7-8x^2, by the Mean Value Theorem, we know there exists a c in the open interval (-2,5) such that f'(c) is equal to this mean slope. For this problem, there is only one c that works. Find it.

    asked by Sckricks
  25. Ap chemistry

    The standard enthalpy of formation of Mn2O3 is −962.3 kJ/mol. How much heat energy is liberated when 6.4 grams of man- ganese are oxidized by oxygen gas to Mn2O3 at standard state conditions? Answer in units of kJ

    asked by Gabriella
  26. Physics

    A container of volume 19.4 cm3 is initially filled with air. The container is then evacuated at 0oC to a pressure of 6.0 mPa. How many molecules are in the container after evacuation if we assume that air is an ideal gas?

    asked by Chris
  27. chemistry

    Phosphorus (p4) burns in the air to give diphophorus pentoxide. what is the blance chemical equation for the reaction

    asked by Alexis A
  28. Statistics

    HIM department at Community Hospital will experience a 15 percent increase in the number of discharges coded per day as the result of opening a cardiac clinic in the facility. The 15 percent incrase is projected to be 100 additional records per day. The

    asked by Joe
  29. Calculus

    The function f(x)=-2x^3+30x^2-96x+8 has one local minimum & one local maximum. This function has a local minimum at x equals ______ with value __________ and a local maximum at x equals _______ with value __________ .

    asked by Skirby
  30. Calculus

    Find the absolute maximum and absolute minimum values of the function f(x)=x^3+6x^2-63x+4 on each of the indicated variables. Enter DNE for does not exist. (A) Interval = [-8,0] Absolute maximum = Absolute minimum = (B) Interval = [-5,4] Absolute maximum =

    asked by Nate
  31. Calculus

    Consider the function f(x)=-2x^3+33x^2-108x+2. For this function, there are three important intervals: (-Inf,A], [A,B], [B,Inf) where A and B are the critical points. Find A and B and for each of the important intervals, tell whether f(x) is increasing or

    asked by Nathan
  32. ET3034TUx Solar Energy

    Which of the following processes is used in order to fabricate mono-crystalline silicon? a) The Czochralski process b) Silicon ribbon process c) The float-zone process d) The silicon casting process

    asked by Anon
  33. Forensic Psychology

    The case describes an appellate legal opinion or court decision involving expert witness testimony. When a case is appealed, it goes to an appellate or to a higher court. The appellate court then reviews the findings of the lower court, which in this case

    asked by debra
  34. Geometry

    1.) A skateboard ramp has a 158° entry angle. Find the measure of ∠1. 2.) Which of the following equations is parallel to the line passing through A(-2, 7);B(-2, -2)? 3.) Which of the following equations would graph a line parallel to 3y = 2x - x + 5?

    asked by Kaitlyn
  35. physics

    What linear speed must a 4.0×10−2kg hula hoop have if its total kinetic energy is to be 0.20J ? Assume the hoop rolls on the ground without slipping.

    asked by Kaitlin
  36. introduction to computers

    You are runnong windows 8 on your laptop. you install a64 bit application on it. Where will this application reside. 1.in the windows folder 2. in the windows applications folder 3. in the windows (64) folder 4. in the program files folder

    asked by Anonymous
  37. Biology

    How does having a large, sweet fruit benefit a plant?

    asked by Kailee
  38. Physics

    A satellite moves in a circular orbit around the Earth at a speed of 5.3 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 1024 kg. The value of the

    asked by Graham
  39. Statistics

    Please Help! If someone could just show me how to do a problem like this! The corrosive effects of various soils on coated and uncoated steel pipe was tested by using a dependent sampling plan. The data collected are summarized below, where d is the amount

    asked by Casey
  40. Statistics

    Help Me Please! In a survey of families in which both parents work, one of the questions asked was, "Have you refused a job, promotion, or transfer because it would mean less time with your family?" A total of 200 men and 200 women were asked this

    asked by Casey
  41. Statistics

    Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 375 324 H 414 333

    asked by Casey
  42. Maths

    Let a*pi be the area of the region bounded by the curve defined by the parametric equations x=10cos2t, y=10sin2t where 0

    asked by Marlen
  43. chemistry

    A sample of gas in a balloon has an initial temperature of 25\({\rm \, ^{\circ}C}\) and a volume of 1670\({\rm L}\) . If the temperature changes to 82\({\rm \, ^{\circ}C}\) , and there is no change of pressure or amount of gas, what is the new volume,

    asked by Abby
  44. Algebra 1--Please, help me! This is urgent!

    Solve each equation. 1). 4/5y + 1/3 -2

    asked by Anonymous
  45. Biology

    If the axo-membrane becomes more permeable to potassium Ions. What would happen?

    asked by Talan. Help!!!!
  46. math

    Find the equation of the line that has the given slope and passes through the given point: m = -3, (6,6)

    asked by Sally
  47. physics

    A nuclear reactor for producing neutron beams is refuelled with about 10 kg of uranium, which contains initially 90% of the fissile isotope 235U. The reactor operates continuously at a constant thermal power of 57 MW until the quantity of 235U is reduced

    asked by Ryan
  48. science

    which of the following would happen to the moon if gravity no longer affected it ? a) the moon would continue to move on it's orbital path b) the moon stop moving all together c) the moon would move in a spiral toward earth d) the moon would move in a

    asked by victoria
  49. math

    one candy bar contains 220 calories. If this represents 10% of the total calories a person consumes in one day, find the total number of calories consumed in a day. 220/x=10/100 cross multiply so x=2200 is this correct? thanks

    asked by Elle
  50. science

    if all of the following imaginary planets were the same distance from the sun, which would experience the strongest force of gravity due to the sun? planet a: mass 3,500 kg planet b: mass 50,000 kg planet c: mass 750 kg planet d: mass 100,000 kg a)planet a

    asked by victoria
  51. algebra

    consider the following sets. A={13} B={10+13} C={10,3} D={2^5} E={2,5}

    asked by Anonymous
  52. Spanish

    I need someone to heck if this is correct Complete each sentence with the conjugated yo forms of the verbs in the word bank. hacer poner salir suponer traer 1. Todos los días salgo___ de la universidad a las tres y voy a casa. 2. Llego a mi casa a las

    asked by Ashley
  53. algebra 2

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

    asked by hannah
  54. Spanish

    I need help to revise these sentences, thanks Form complete sentences using the verbs and nouns provided. Add any other necessary words. 1. María Elena / mostrar / fotos / a sus amigas 2.Martín y su hermano / empezar / lecciones de natación / martes 3.

    asked by Ashley
  55. physics

    A baseball player pops a pitch straight up. The ball (mass 230g ) was traveling horizontally at 36.0m/s just before contact with the bat, and 21.0m/s just after contact. Part A Determine the magnitude of the impulse delivered to the ball by the bat. Part B

    asked by becca
  56. math

    How many feet are there in 24 yards? A. 288 B. (72) C. 8 X D. 2 Correct? it's not c either.(x means wrong)

    asked by Anonymous
  57. Math

    Tina lost 3 pounds on the first week of her diet. She gained a pound on the second week, and then lost 2 pounds a week during every week afterwards. She has been dieting for a total of 13 weeks. How many pounds has Tina lost in all? A. 22 pounds B. 24

    asked by Cassie
  58. ALGEBRA

    One-ninth of Polymer Plastics’ sales are made in New England. If New England sales amount to $600,000, what are the total sales of the company?

    asked by Anonymous
  59. University of Belize

    5. A 0.500 g sample of a BaCl2•2H2O/Na2SO4 salt mixture, when mixed with water, filtered, and dried, produced 0.225 g of BaSO4. The Na2SO4 was determined to be the limiting reactant. a. Calculate the mass, in grams, of Na2SO4 in the mixture. b. Calculate

    asked by sarah
  60. algerba 1

    i need help solving the properties of an quotient properties of exponents

    asked by kristi
  61. Statistics

    Complete the hypothesis test with alternative hypothesis ƒÊd ‚ 0 based on the paired data that follows and d = O - Y. Use ƒ¿ = 0.01. Assume normality. Oldest 174 173 169 180 51 Youngest 168 169 175 187 53 (a) Find t. (Give your answer correct to

    asked by Casey
  62. Organic Chemistry

    I want to confirm some things on solubility and boiling points(they might be right or wrong): - If a substance is soluble in water then it also has a high boiling point - If a substance has a high intermolecular force then it also has a high boiling point

    asked by rinchan
  63. Statistics

    Which of the following criteria must be met to do a one-proportion z- test? A. The data values in the sample must be dependent. B. The parent population must be normally distributed. C. The data must come from a random sample. D. The sample size must be

    asked by Penny
  64. Statistics

    A new manager, hired at a large warehouse, was told to reduce the 26% employee sick leave. The manager introduced a new incentive program for the company's employees with perfect attendance. The manager decides to test the new program to see if it's better

    asked by Penny
  65. business

    wall street journal provides the net asset value, the year to date percent return, and the three year percent return for 555 mutual funds will be selected for a follow up study on the size and performance of mutual funds. Use the forth column of the randon

    asked by Anonymous
  66. math

    What model should I use to represent 3 divided by 3/4.

    asked by Zoel
  67. Chemistry

    name some advantages of using acetaminophen instead of aspirin as an analgesic

    asked by anh
  68. algebra 2

    A garden supply store sells two types of lawn mowers. The cashiers kept a tally chart for the total number of mowers sold. They tallied 30 mowers sold. Total sales of mowers for the year were $8379.70. The small mowers cost $249.99 and the large mowers

    asked by hannah
  69. Math

    Explain how the answers for 20 divided by 1/7 (140), 20 divided by 2/7 (70) and 20 divided 6/7 (23 1/3) are related. Show why this makes sense.

    asked by Anonymous
  70. algebra 2

    You have $22 in your bank account, and you deposit $11.50 per week. Your cousin has $218 in his bank account and is withdrawing $13 per week. The graph of this problem situation intersects at x=8. What does this mean? A. In 8 weeks, you will have triple

    asked by hannah
  71. Chemistry

    what is important about oxygen being formed during a titration?? (formed in container after it has been titrated not in the burette)

    asked by Amber
  72. Nth

    Explain how the answers for 20 divided by 1/7 (140), 20 divided by 2/7 (70) and 20 divided 6/7 (23 1/3) are related. Show why this makes sense. Please answer my question

    asked by Anonymous
  73. Math

    1. Jane has a checkbook balance of $68.00. She then writes two checks, one for $5.00 and one for $62.50. She also deposits $75.00. She then uses her calculator to determine her new balance. Which of the following is the correct series of keys she should

    asked by Anonymous
  74. Math

    Bill is making 22 small pizzas for a party. He has 16 cups of flour. Each pizza crust takes 3/4 cup of flour. Does he have enough flour? Pleas show why your answer is correct.

    asked by Anonymous
  75. social studies

    What European Country controlled Mexico Before 1821

    asked by Imari
  76. Chemistry

    1- Which of these processes will lower the glass transition temperature of a glass? Increase the cooling rate Decrease the cooling rate Increase amount of network modifier Decrease amount of network modifier Quench the glass to cool the surfaces quickly

    asked by youlifex
  77. Anatomy

    Which of the following cells lacks mitochondria? a. neutrophil b. platelets c. basophils d. erythrocytes I just need some assistance and assurance that my answer is reasonable. I'm thinking that the answer is d. erythrocyte because it is not a true cell. I

    asked by Stephanie
  78. math

    A rectangular petting zoo is 144 inches long and 108 inches wide. How many inches of fencing is needed to enclose it?

    asked by rasean
  79. Math

    There are 12 baby rabbits at the pet store. The manager lets Gabriella feed vegetables to the rabbits as treats. She has 5 1/4 ounces of parsley today. She wants to give each rabbit the same amount. How much parsley does each rabbit get?

    asked by Anonymous
  80. Math

    4(7-y)= (4 x 3k) + (4 x 4)= 6(2 + 4x)= (5 x a) + (5 x 2)=

    asked by Kim
  81. algebra

    On his midterm exam, Jimmy scored 75 points, which was exactly 2 standard deviations above the mean. If the standard deviation for the test is 4, what is the mean for the test?

    asked by Diandra
  82. 7th grade Math

    There are 50 questions on a test. If a 60% is considered passing, how many questions do you have to get right to pass?

    asked by Chad
  83. Math

    It takes 18 3/8 inches of wood to make a frame for a small snapshot. Ms. Jones has 3 yards of wood. How many frames can she make?

    asked by Anonymous
  84. math

    What is the Multiplication Property of Equality?

    asked by Zoel
  85. Math

    Evaluate this expression if x=-3, y=6, w=2 3x^3w^2+xy^2 why the answer is -432 ?

    asked by Evy
  86. Graphing - Trigonometry

    Below is the graph of y = a cos(bx+c)+d, where a, b, and c are positive, and c is as small as possible. Find a + b + c + d. prntscr. com/20mkyo The link is to a screenshot of the graph. (without spaces) I'm unsure of how to solve - I tried it and got y = 2

    asked by Sam
  87. Science

    Explain what acids and bases are in terms of hydrogen ions. Which has more hydrogen ions and which has less?

    asked by Allie
  88. AP Chemistry

    Calculate ∆G0 for the following reaction. 4XY + 3Z2−→2Z3X2+ 2Y2 Substance ∆H0f S0kJ/mol J/mol·K XY 205.0 75.0 Y2 −82.0 37.0 Z2 −25.0 78.0 Z3X2 −245.0 137.0 Answer in units of kJ/mol

    asked by Gabriella
  89. AP Chemistry

    Calculate the entropy change when 4.44g of H2 reacts with O2 according to the reaction 2H2(g) + O2(g)→2H2O(ℓ) at 298 K and 1 atm pressure. The stan- dard molar enthalpy of formation of H 2O(ℓ) at 298 K is −285.8 kJ/mol. The corresponding free

    asked by Gabriella
  90. AP Chemistry

    This temperature represents the freezing point of ethanol. (Which means delta G = 0) What is the entropy change for the vaporization of 3.3 mol H2O(ℓ) at 100◦C and 1 atm? ∆H= 40700 J/mol. Answer in units of J/K

    asked by Gabriella
  91. AP Chemistry

    Calculate the standard entropy change for the dimerization of NO2: 2NO2(g)→N2O4(g)at 298 K, if S◦ ∆H◦f J/K·mol NO2(g) 240.06 33.18 N2O4(g) 304.29 9.16 Answer in units of J/K·mol

    asked by Gabriella
  92. Spanish Help please

    I have a few questions in Spanish that I'm not 100 % about. I'm pretty sure they are right though. . ¿Por qué estás triste? Porque ____________. A. terminaron temprano las clases hoy B. por suerte no hay clases la semana próxima C. hoy no tengo que dar

    asked by Eri Uchi
  93. statistics

    List below are the duration (in hours) of a simple random sample of all flights of a space shuttle program. Find the range, variance, and standard deviation for the sample data. Is the lowest duration time unusual? Why or hwy not? 73 95 238 199 166 268 198

    asked by angela
  94. Social studies

    In 1763,Great Britain won the Seven Year's War defeating France. Because of the loss, France lost most of their possessions in North American, which meant that France was no longer a colonial power in North America. without the French threat,Spanish

    asked by Imari
  95. chemo

    How much heat (in kJ) does it take to melt 28.4 grams of ice at 0 °C and raise the temperature of the resulting water to 25 °C? Heat of fusion 334 J/g, Specific heat 4.184 J/g °C ?

    asked by melissa
  96. Statistics/Math

    I want to test H0: p = .12 vs. Ha: p ≠ .12 using a test of hypothesis. This test would be called a(n) ____________ test. A) two-tailed B) right-tailed (this one?) C) left-tailed

    asked by Michael
  97. math

    Explain how you can use an array to find partial products for 4x36

    asked by ti
  98. algebra 2 part 1

    find the points of intersection of f(x)=3x-5 and g(x)=-4+9

    asked by Alexis
  99. math

    -4x+2y=8

    asked by Adrianne
  100. math

    points of intersection of f(x)=3x-5 and g(x)=-4+9

    asked by Alexis
  101. physics

    A speeder passes a parked police car at a constant speed of 20.2 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.86 m/s 2 . How much time passes before the speeder is overtaken by the police car? Answer in units of s

    asked by Anonymous
  102. Math, HELP!

    Find the LCD: a) (12/55c^6) (4/11c^9) b) (9/4c+12) (5c/5c+10) c) (9x/x^2-4x+4) (5x/x^2-5x+6) d) (7/x) (3/42-7x) (x/x^2-36)

    asked by Trevor
  103. Algebra 1

    Find the x-intercept of the graph of the equation. 9x-4y=10 Is the answer: 10/9

    asked by Mary
  104. History

    What is the purpose of government?!?

    asked by Abby
  105. Math

    Help!?! 4x+49

    asked by Abby
  106. Math

    Maria uses 5 1/3 gallons of gas to drive to work and back four times. How many gallons of gas does Maria use in round trip to work? Maria's car gets 28 miles to the gallon. How many miles is her round trip to work?

    asked by Anonymous
  107. history

    how were slaves treated in the american south?

    asked by megan
  108. math

    round to the nearest thousand 9612

    asked by Raquel
  109. math

    round to the nearest thousand 9339

    asked by Raquel
  110. Spanish

    I wanted to know if i used the right verbs Complete the sentences with the correct forms of conseguir, ir, pensar, querer, or suponer. 1. Nosotros (blank) de excursión a las montañas, Toño. 2. ¡Yo (blank) que vas a dormir todo el fin de semana! 3. No,

    asked by Ashley
  111. Physics

    A baseball player pops a pitch straight up. The ball (mass 230g ) was traveling horizontally at 36.0m/s just before contact with the bat, and 21.0m/s just after contact. Part A Determine the magnitude of the impulse delivered to the ball by the bat. Part B

    asked by HELP!!!!
  112. calculus

    Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a constant rate of 3m/s, how fast is the area of the spill increasing when the radius is 15m?

    asked by mariska
  113. physics

    A 1.0 x 10-3-kg house spider is hanging vertically by a thread that has a Young's modulus of 4.2 x 109 N/m2 and a radius of 18 x 10-6 m. Suppose that a 61-kg person is hanging vertically on an aluminum (Young's modulus 6.9 x 1010 N/m2) wire. What is the

    asked by Anonymous
  114. physics

    Show that the magnitude of the charge on a capacitor is given by Q = (Qo(1-e^-(t/T))) and Q = Qoe^-(t/T) for charging and discharging, respectively.

    asked by Jason
  115. Chem

    How do you determine the absolute error of the equivalence point determined by a graph?

    asked by Erica
  116. geometry

    How do you find the distance of 2 points?

    asked by Rusty
  117. intro to computers

    your boss is considering a BYOB program for your company. he asks you if there are any negatives to such a program. what do you tell him?

    asked by mary
  118. Science

    What is the definition for the word friction?

    asked by Alexis
  119. Math

    The length of a rectangle is 1 meter more than 5 times it's width. The perimeter of the rectangle is 98 meters. Find the length and width of the rectangle.

    asked by Miah
  120. math

    How did you get the answer 4elm leaves and20oak leaves and oak8 maple leaves

    asked by Anthony
  121. Math

    what is the unit rate of 5 divided 12 1/2 and how do you solve it ?

    asked by Nick
  122. physics

    What is the voltage across a capacitor after a time of two constants when a. charging from zero voltage and b. discharging from a fully charged condition?

    asked by Jason
  123. math

    How did you get the answer 4elm leaves and20oak leaves and oak8 maple leaves

    asked by Anthony
  124. ms sue

    ms sue for participant observation thing it ask how ur observation reflect sub culture your studying? well everyone was in like a healthy lifestyle?

    asked by Mohammad
  125. math

    r over 2 + 6 =5

    asked by anthony
  126. Chemistry

    Why does shielding in organic molecules cause lower solubility in water?

    asked by rinchan
  127. physics

    With V = Voe^-(t/T), how many time constants does it take for a capacitor to discharge less than 1% of its initial voltage?

    asked by Jason
  128. Math

    Two airplanes leave St. Louis at the same time and fly in opposite directions. If one travels at 500 kilometers per hour, and the other at 600 kilometers per hour, how long will it take for them to be 1925 kilometers apart?

    asked by Miah
  129. 6th grade math

    Can you check these, please? 1. George had 5 apples. His mother gave him a few more apples to share with his friends. Write an expression to represent the total number of apples George has. Ans: 5 + n 2. four times as much as a number k Ans: 4k 3. Michelle

    asked by Alex
  130. Geometry

    I only have one question # 1 find to the nearest meter the height of a church spire that casts a shadow of 50 meters when the angle of elevation of the sun measures 68 degrees.

    asked by Anonymous
  131. math

    A community swimming pool buoys every 1.5 feet across the pool to mark off swimming areas. Use your ruler and the number line to show where each buoy is placed.

    asked by mikel
  132. Math

    Two airplanes leave St. Louis at the same time and fly in opposite directions. If one travels at 500 kilometers per hour, and the other at 600 kilometers per hour, how long will it take for them to be 1925 kilometers apart?

    asked by Miah
  133. Math

    Bethany has 43 apples. Write a subtraction story about the apples That would require regrouping. Then write the answer in a complete sentence.

    asked by Bethany
  134. Statistics

    Find the 99% confidence interval for the difference between two means based on this information about two samples. Assume independent samples from normal populations. (Use conservative degrees of freedom.) (Give your answers correct to two decimal places.)

    asked by Karly
  135. Geometry

    I only have one question # 1 find to the nearest meter the height of a church spire that casts a shadow of 50 meters when the angle of elevation of the sun measures 68 degrees.

    asked by Anonymous
  136. Statistics

    Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 13, n2 = 8, and á = 0.025 F=

    asked by Karly
  137. Statistics

    State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test these claims. < ¡Ü = ¡Ù ¡Ý > (a) There is an increase in the mean difference between posttest and pretest scores. Ho: ¦Ìd 0 Ha: ¦Ìd 0 (b) Following a

    asked by Karly
  138. science

    A hockey puck sliding on a frozen lake comes to rest after traveling 272 m. If its initial velocity is 3 m/s, what is its acceleration (assumed constant)? Answer in units of m/s2

    asked by bob
  139. english-satire

    so i am doing a satirical essay , similar to that of swift's modest proposal.I want to talk about obesity, and i have an idea of showing it in a positive way, as in some nations in the past and present being chubby/fat is seen as prosperity and

    asked by Sasha
  140. language arts

    What specific word choices does Poe use in his opening sentences of the 6 stories?

    asked by Anonymous
  141. Chemistry

    If the heat of combustion for a specific compound is -1080.0 kJ/mol and its molar mass is 58.29 g/mol, how many grams of this compound must you burn to release 300.60kJ of heat?

    asked by Patricia
  142. Science

    How much force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s^2?

    asked by AshKay
  143. Math Problems

    Phil’s batting average in baseball is 0.625. What is the probability of Phil getting a hit his next time at bat, expressed as a percent? please explain clearly!! thank u

    asked by smile0003
  144. statistic

    For a two-tailed hypothesis test, the test statistic is z = 1.42. What is the p-value?

    asked by Anonymous
  145. Ms sue

    Ms sue I read this article and I need to relate to assignment if you go on google and type this in : of hats and switches doing fieldwork at home The first site u can open pdf I have to reference article I not really understand article

    asked by Mohammad
  146. physics

    Show that the time for the voltage in the RC circuit to rise to (Vo/2) "half-max" is t1/2 = T ln 2

    asked by Jason
  147. math

    On a winter’s day, the ratio of night to daytime with sunshine to daytime with cloud cover is 7:5:4. Based on this information, determine how long the sun was shining on the recording area during that 24-hour period. please explain!!

    asked by anonymous
  148. physics

    A 2.0 micro Farad capacitor in a circuit in series with a resistance of 1.0 mega ohms is charged with a 6.0v battery. How long would it take to chage the capacitor to three fourths of its maximum voltage.

    asked by Jason
  149. math

    Maggie is planting bushes every 1.5 feet along the side of a fence. the fence is22.5 feet long. explain how Maggie can draw a picture to show where each bush is planted on a number line.

    asked by mikel
  150. math

    if Ted's front porch is 9 and 3/4 inches by 4 feet.How long is his porch?

    asked by tracy
  151. PHYSICS

    A cosmic-ray proton in interstellar space has an energy of 11.0 MeV and executes a circular orbit having a radius equal to that of Mars revolving around the Sun (2.28 1011 m). What is the magnetic field in that region of space?

    asked by Edmound
  152. History

    What are three heirs of ROme after the fall of the Western Empire? I think I know two, which are...Byzantine and Islamic. But what is the last one?? or is my two answer right??

    asked by JJ
  153. math

    In a normal month you use 1200 kWh of electricity. Your electricity provider has decided to increase the rate it charges for electricity by $0.05 per kWh. If you continue to use electricity at the same rate, how much more will it cost for one year? explain

    asked by anonymous0.1
  154. Math

    Ms. Taylor has a budget of $1500 to spend on a table and 6 chairs. The total price she spent was $249 under her budget. The table costs 3 times more than a chair. What was the price of the table?

    asked by Wanda
  155. medical billing/codeing

    the body's ongoing process of regulating its internal environment-electrolyte balance, blood chemistry, temperature, and so on-is called a. excretion b. metabolism c. homeostasis d. peristalsis

    asked by denise
  156. Calculus (integrals)

    Find the integral:8x^7+6/(x^8+6x)^2 I got ln(x^8+6x)^2 but apparently that is wrong.

    asked by Eve
  157. english

    find an Ottawa Citizen news story about Scott Starson. Some issues to reflect upon in your thought paper:] 1. At what point should physicians or family members have the right to impose treatment on an individual with a mental disorder?

    asked by letmewatchthis
  158. english

    find an Ottawa Citizen news story about Scott Starson. Some issues to reflect upon in your thought paper: 2. Why is there such disagreement amongst Scott, his various friends, his mother, and his doctors about the right way to address his needs?

    asked by letmewatchthis
  159. english

    find an Ottawa Citizen news story about Scott Starson. Some issues to reflect upon in your thought paper: 3. Scott’s psychiatrist said: "I hope the Supreme Court in its wisdom will look not only at the issue of the right to refuse treatment, but the

    asked by letmewatchthis
  160. PHYSICS

    A velocity selector consists of electric and magnetic fields described by the expressions vector E = E k hat bold and vector B = B j hat bold, with B = 0.0140 T. Find the value of E such that a 670 -eV electron moving along the negative x axis is

    asked by Edmound
  161. Physics

    In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.1 × 106 m/s. Find the central force acting on the electron as it revolves in a circular orbit of radius 4.51 × 10−11 m. Answer in units of N

    asked by Kate
  162. Physics

    If the mass of a planet is 0.571 times that of the Earth and its radius is 0.787 times that of the Earth, estimate the gravitational field g at the surface of the planet. The gravitational acceleration on Earth is 9.8 m/s2. Answer in units of m/s2

    asked by Kate
  163. Algebra

    How do you write an algebraic expression for five friends went to a baseball game. Three of the friends each bought a ticket for x dollars and a soda for $6.00. The other two friends each bought only tickets. Write and simplify an expression that

    asked by Gabe
  164. math

    Estimate. Then record the product. 156 x 4

    asked by ezekiel
  165. English

    Need an example of main idea for the following sentences. A dog needs fresh, clean water every day. To stay healthy, a dog should exercise every day. A dog's diet changes throughout its life.

    asked by Hayden
  166. Social Studies definition

    Presidential- legislative: An elected president leads the government, sharing power with a legislature and with the courts. ( the US is an example of a presidential-legislatie democracy) Question: Which best describes presidential-legislative? a. courts

    asked by cici
  167. algebra 2

    A garden supply store sells two types of lawn mowers. The cashiers kept a tally chart for the total number of mowers sold. They tallied 30 mowers sold. Total sales of mowers for the year were $8379.70. The small mowers cost $249.99 and the large mowers

    asked by hannah
  168. MATH ANALYSIS & TRIG

    At noon, Al is 6km north of point O traveling south at 10km/h. Also at noon, Barb is 2km east of point ) traveling east at 5km/h. A) express the distance "d" between Al and Barb as a function of time "t" hours after noon. B) Find the time at which the

    asked by francis
  169. english

    i need 4 symbols that represnt me and i have no idea how to know what they are

    asked by jim
  170. science help plzzz

    Multiple Choice 1. At the chromosomal level, what is the difference between human males and human females? (1 point) All males have a Y chromosome, and females do not. All males have an X chromosome, and females do not. All males have 47 chromosomes, and

    asked by josh