terry

Most popular questions and responses by terry
1. math

What percentage of the total students chose skateboarding? (1 point) 10% 20% 30% none of these if 2 bys and 1 girl chose skateboarding? What percentage of the boys chose walking? (1 point) 30% 45% 25% none of these

2. math

. Ms. Alison drew a box-and-whisker plot to represent her students’ scores on a mid-term test. Josh received 72 on the test. Describe how his score compared to those of his classmates. (1 point)About 25% scored higher; about 75% scored lower. Everyone

3. Chemistry (Le Chatelier's Principal)

Methanol has the formula CH3OH and can be produced by the reaction of carbon monoxide with hydrogen gas. CO + 2 H2 ￼￼ ￼CH3OH + heat In an attempt to maximize the yield of methanol (amount of methanol produced), a chemist would try to shift the

4. Chemistry Lab

I need help with the third part The chemical method of analysis in determination of the blood alcohol content (%BAC) is: K2Cr2O7 + H2SO4 + C2H5OH → Cr2(SO4)3 + K2SO4 + CH3COOH + H2O What are the stoichiometric coefficients for the reaction above? (please

5. physics

A block of mass m = 3.6 kg, moving on a frictionless surface with a speed vi=9.3m/s makes a perfectly elastic collision with a block of mass M at rest. After the collision, the 3.6 kg block recoils with a speed of vf=2.7m/s. In Figure 8.2, the speed of the

6. english

How does the author create such a heartwarming feeling in this story? A) by revealing the thoughts and actions of Josh B) by revealing the thoughts and actions of Coach Wilkins C) by revealing the thoughts and actions of Principal Edwards D) by revealing

Which of the following functions f has a removable discontinuity at a? If the discontinuity is removable, find a function g that agrees with f for x a and is continuous at a. (If the discontinuity is not removable, enter NONE.) 1. f(x)= (x^4-1)/(x-1), a=1

8. Physics

Assume that in interstellar space the distance between two electrons is about 0.87 cm. The electric force between them are repulsive. Calculate the electric force between these two electrons. The value of the Coulomb constant 9 × 109 N · m2/C2 and the

9. Chemistry

a) Find the empirical formula for KxFey(C2O4)z·nH2O given % percents: potassium = 34.5% iron = 11.4% water = 11.0% oxalate = 43.1 % b) Insert values for x, y, z into KxFey(C2O4)z·nH2O then give correct coefficients to balance the equation:

10. Physics

Consider a circular track with a radius of 200 meters. A runner starts on the east side and runs around the track to a point diametrically opposite her starting point. -What is the magnitude of her displacement? 400m -She then runs the rest of the way

11. Stats

Suppose the number of cell phones in a household has a binomial distribution with parameters n = 17, and p = 40 %. Find the probability of a household having (Keep at least 4 digits) (a) 11 or 13 cell phones? (b) 11 or fewer cell phones ? (c) 14 or more

12. Physics

Supposed a skydiver ( mass=75kg ) is falling toward the earth. When the skydiver is 100m above the earth he is moving at 60m/s. At this point calculate the skydiver: Gravitational potential energy Kinetic energy Total mechanical energy

13. Chemisty

Are the following isotonic, hypotonic or hypertonic. 1) H2O 2 0.9% NaCl (isotonic) 3) 10% glucose 4) 3% NaCl 5) 0.2% NaCl

14. Stats

An analyst working for a telecommunications company has been asked to gauge the stress on its cellular networks due to the increasing use of smartphones. She decides to first look at the relationship between the number of minutes customers spent talking on

15. Math

Artie Choke and Tom A. Toe both shop at the same local grocery store between five and six in the evening. The last time they saw each other was on Tuesday. Artie shops every five days and Tom shops every four days. What day of the week will they next run

16. statistics

The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. Out of 50 pregnancies, how many would you expect to last less than 250 days?

17. Math

Riddle: It's 7:00 AM. You are asleep and there is a sudden knock on the door. Behind the door are your parents who came to have breakfast. In your fridge are bread, milk (pasteurized), juice, and a jar of jam. To answer, what will you open first?

18. Algebra

83. Minimizing Marginal Cost The marginal cost of a product can be thought of as the cost of producing one additional unit of output. For example, if the marginal cost of producing the 50th product is \$6.20, it cost \$6.20 to increase production from 49 to

19. Pre Calc

The annual sales of Crimson Pharmacy are expected to be given by S = 2.4 + 0.3t million dollars t years from now, whereas the annual sales of Cambridge Pharmacy are expected to be given by S = 1.1 + 0.7t million dollars t years from now. When will

20. English

The cow jumped over the moon what is the subject, verb and object in this sentence.

21. statistics

Assume that a set of test scores is normally distributed with a mean of 100 and a standard devaiton of 20. Use the 68-95-99.7 rule to find the following quantities: a. percentages of scores less than 100 b. relative frequency of scores less than 120

22. life orientation

clearly describe a recent corruption and fraud case in the country making headlines in the media:who the players are who got involved,the extent to which it linked to other crimes,role played by the media and that of the state to deal with this crime

23. science

At a murder scene, you have started making an image of a computer’s drive. You’re in the back bedroom of the house, and a small fire has started in the kitchen. If the fire can’t be extinguished, you have only a few minutes to acquire data from a 10

24. math

Critique Reasoning Alex decides that 21 divided by 3 = 7 is NOT a true equation. Is Alex correct? Explain

25. english

how to find the subjects of the clauses in sentences

26. physics

Point P is on the rim of a wheel of radius 2.0 m. At time t = 0, the wheel is at rest, and P is on the x axis. The wheel undergoes a uniform angular acceleration of 0.01 rad/s^2 about the center O. In Figure 9.1, the magnitude of the linear acceleration of

Erasers cost \$5 per carton and pencils cost \$7 per carton. If an order comes in for a total of 15 cartons for \$85, how many cartons of each were bought?

28. physics

If micheal Jordan has a vertical leap of 1.29 m, what is his take off speed and his hang time(total time to move upwards to the peak and then return to the ground)?

29. geometry

measure of angle ABC=4x-12 measure of angle ABX=24 BX bisects ABC solve for X and find the measure of angle ABC **page 48 # 11 of prentice hall,california geometry**

30. math

Write the given expression as the tangent of an angle. tan 7x − tan x/ 1 + tan 7x tan x

31. Calculus

A rectangular page is to have a print area of 96 square inches. The top and bottom margins are to be 1.5 inches each and the left and right margins are to be 1 inch each. What dimensions will minimize the total area of the page. I got L=8sqr(2) But I'm not

32. Math, derivatives

f(x) = x² + 2Cos²x, find f ' (x) a) 2(x+cos x) b) x - sin x c) 2x + sin x d)2(x - sin2x) I got neither of these answers, since the 2nd part should be chain rule, right? f(x) = x² + 2Cos²x = x² + 2(Cos x)² then f '(x) = (2)(2)(cosx)(-sinx) My answer:

33. Stats

In the last Canadian census, 2.6% of all Ontario residents declared themselves to be Ukrainian ethnic origin. In a recent survey of 500 Ontario residents, 3.1% of people declared themselves to be of Ukrainian ethnic origin. Using the statistical meanings

34. Math

A student is given a reading list of eight books from which he must select four for an outside reading requirement. In how many ways can he make his selections?

35. math

you invested \$8000 between two accounts paying 7% and 9% annual interest, respectively. If the total interest earned for the year was \$600 how much was invested at each rate?

36. math

Write the given expression as the cosine of an angle. cos 60° cos 65° − sin 60° sin 65°

37. computer science

Can you find the reason that the following pseudocode function does not return the value indicated in the comments? // The calcDiscountPrice function accepts an item’s price and // the discount percentage as arguments. It use those // values to calculate

38. CALCULUS

The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 3sin(ðt) + 5cos(ðt), where t is measured in seconds. (Round all answers to the nearest hundredth.) (a) Find the average

39. math

Describe how to solve -5x = 30.

40. Geometry

Suppose the coordinate of P is 2, PQ = 8, and PR = 12. What are the possible coordinates of the midpoint of the given segment?

41. Physics

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know: Truck 1 approched the intersection from the top of a

42. math

in a group of 100 people, 40 own a cat, 25 own a dog and 15 own a cat and a dog. Find the probability that a person chosen at random a) owns a dog or a cat b) owns a dog or a cat, but not both c)owns a dog, given that he owns a cat d) does not own a cat,

43. MATH

Chantal has a flower bed. She has three types of flowers, Daffodils, Hyacinths and Tulips. She has 8 Daffodil bulbs, 10 Hyacinths bulbs and 12 Tulip bulbs. For every 3 bulbs that were planted, how many hyacinth bulbs were planted? Was it 1,2,3, or 5?

44. earth

A man stands at the north pole, his mass is 100 kg. Later he goes and stands at the equator. Compute what force he exerts on the earth when he stands at the: a) north pole, b) equator. Which force is greater and find the difference.

45. Math

In a survey, 175 consumers were asked about their buying preferences concerning a product that is sold in the market under three labels. The results were as follows. 14 buy only those sold under label A. 25 buy only those sold under label B. 28 buy only

46. Pre-cal

Find the length of side b to the nearest whole number if side a = 105, angle A = 65 degrees, and angle B = 37 degree.

47. math

Eleven graduate students have applied for two available teaching assistantships. In how many ways can these assistantships be awarded among the applicants if (a) No preference is given to any one student? (c) The group of applicants includes seven men and

48. Algebra

A box is to be formed from a rectangular piece of sheet metal by cutting squares measuring 5 inches on a side and then folding the sides. The piece of sheet metal is twice as long as it is wide. If the volume of the box is to be 1760 in^3, what are the

49. MICROECONOMICS

How have insights from the field of psychology influenced the thinking of economists in recent years?

50. physics

A rock is dropped into the Grand Canyon. It takes 18 seconds to hit the bottom. Calculate how deep the canyon is.

51. Stats

Wood scientists are interested in replacing solid-wood building material by less expensive products made from wood flakes. Some summary statistics obtained from a study of the relationship between the length (in inches) and the strength (in pounds per

52. accounting 100

The following items are taken from the financial statements of the Postal Service for the year ending December 31, 2014: Accounts payable \$ 18,000 Accounts receivable 11,000 Accumulated depreciation – equipment 28,000 Advertising expense 21,000 Cash

Please edit my answers below the questions for correct sentencing In the following statement, a business owner attempts to explain and justify his slow growth in his business. I limit my growth pace and every effort to service my present customers in the

54. pre Calc

Assume the number of U.S. dial-up Internet households stood at 38.5 million at the beginning of 2004 and was projected to decline at the rate of 3.5 million households per year for the next 9 years. (a) Find a linear function f giving the projected U.S.

55. Physics

Does the total kinetic energy of an isolated system necessarily have to be conserved when its total momentum is conserved?

56. math

Compute the hurdle rate above based on the following.1. Note payable bank \$2,000,000.00 with rate of 7.5%, The company has a tax rate of 30%.2. Bank Mortgage Loan \$1,000,000.00 with rate of 6% The company has a tax rate of 30%.3. Preferred stock

57. Math

Admission to a museum cost \$12 for adults and \$7 for children. A group of 35 people attending the museum paid a total of \$315 in admission fee. Write a system of equations to represent the situation. Let A represent the number of adults admissions and C

58. Physics

Is the speed of sound in the air the same for all sounds or do some move more quickly or slowly than others? I am thinking it not the same for all sounds

59. chemistry

You are making 40g of a 29% (w/w) sucrose solution. what amount of sucrose and water would be used. each in grams please

60. physics

To drive a typical car at 40 mph on a level road for one hour requires about 3.2 × 10^7 J of energy. Suppose one tried to store this much energy in a spinning solid cylindrical flywheel which was then coupled to the wheels of the car. A large flywheel

61. math

How much of 20% alcohol solution and 50% alcohol solution must be mixted to get 9 liters of 30% alcohol solution?

62. ALGEBRA

A student inherited \$4,200 and deposits x dollars in American Savings. Write an expression to show how much she has left to deposit in a City Mutual account.

63. Math

In how many different ways can a panel of 12 jurors and 2 alternates be chosen from a group of 15 prospective jurors?

64. critique reasoning

Alex decides that 21 divided by 3=7 is NOT a true equation. Is Alex correct? Explain

65. calculus

how do I find the derivative of f(x)= 4/ square root of x ? using the limit process?

66. Calculus

How would I solve this: -A particle moves along a line so that, at time t, its position is s(t)=8 sin2t. a) For what values of t does the particle change direction? b) What is the particle's maximum velocity?

67. Interpret Poetry

Can you please give a detailed explanation of the poem titled Albequerque Graveyard on the following site? smith.edu/poetrycenter/poets/thealbuquerquegraveyard

68. Stats

The GRE has a combined verbal and quantitative mean of 1000 and standard deviation of 200. Scores range from 200 to 1600. a. what % of the persons score above 1300? b. above 800? c. below 1200? d. above what score do the top 20% of the test-takers score?

Mobile Oil Company accepted a \$10,000, 120 day note, dated on March 3, at 8.5% to settle past due accounts receivable. Mobile Oil dicounted the note to raise cash on May 10 at a discounted rate 9%. What proceeds did Mobile Oil receive?

70. English

What connections between education and freedom does Douglass make in this except from his autobiography? what does it means?

71. chemistry

The volume of a weather balloon increases as the balloon rises in the atmosphere. Why doesn’t the drop in temperature at higher altitudes cause the volume to decrease?

72. Operating research

Use simplex method to solve Maximize p = 30x + 20y+30z subject to x + y+z

73. Physics

A yo-yo is spun from rest by pulling on the string with a constant tension of 2.0 N. The radius of the inner rod on which the string is strung around is 0.50 cm. The tension is applied for 5.0 seconds after which the yo-yo is observed to spin with an

74. math

Jodie bicycles 6 km/h faster than Javier. In the same time it takes Javier to bicycle 42km, Jodie can bicycle 60 km. How fast is each bicyclist traveling?

I had to describe a picture-the girl has a yellow t-shirt , a brightly colored skirt, blue sandals, purple necklace,two pink bracelets,green earrings. Could you please check? 1.Ella lleva los aretes verdes. 2.La camisa es brillante. El color es amarillo.

Using the FIFO method of inventory pricing, what is the dollar value ending inventory if there were 300 units on hand December 31? Auto Parts annual inventory of Windshield Wipers: January 1, Beginning inventory 300 units@11.00 March 15 Purchase 15o units

77. Algebra

Suzie has 11 coins in her purse. the coins are dimes and quarters. If she has \$2.00 in her purse, how many of each coin does she have?

78. Algebra

On three consecutive passes, a football team gains 5 yards, loses 31 yards, and gains 29 yards. What number represents the total net yards?

79. geometry

if the area of triangle QRS is 38 sq cm, what is the area of QRST?

80. APA writing

Six diseases/disorders terms, two from Chapter 7, two from Chapter 8, and two from Chapter 9. I a working on a APA document that has to be correctly formated. My question to you is, (from comment no.1,: when I am citing, where do I, or "do" I, 1. erectile

81. Calculus

Determin the absolute extreme values of the function on the given interval. 1.)y= 3 sin x + 4 cos x, xE[0, 2pie]

82. Chemistry

Use the Table of Thermodynamic Data to decide which of the following reactions have K>1 at 298 K: (i) HCl(g) + NH3(g)-->NH4Cl(s) (ii) 2 Al2O3(s) + 3 Si(s)-->3 SiO2(s) + 4 Al(s) (iii) Fe(s) + H2S(g)-->FeS(s) + H2(g). Which of the products of these reactions

83. Geometry

The area of a triangle is 30cm^2. What is the base of the triangle if the height is 6 cm?

84. Physics

The flux density through a 200 turn coil of area 8.5*10^-4 m squared changes from 0.03 T to 0.12 T in 15 mins. Calculate the induced emf in the coil.

85. Chemistry

A gas has a pressure of 710 kPa at 227 Celsius. What will its pressure be at 27 Celsius, if the volume does not change?

86. math

Wallace and Sarah purchased furniture for their new home. They had two payment options. The first option is to pay a cash payment of \$4200. The second option is to finance the furniture with a two year installment loan. The loan requires 12% down payment

87. Cryptology math

describe each of the following in a couple of sentences: • Caesar’s Shift Cipher • Codes vs. Ciphers • Kerchoff’s Principle • Keyword (Keyphrase) cipher • Railfence cipher • Scytale • Steganography • Substitution cipher vs.

88. Algebra

Find the indicated outputs for f(x)=¡¼5x¡½^(2 )-2x f(0)= f(-1)= f(2)=

89. Chemisty

Which solution contains more acid, 50ml of a 0.20 N HCL solution or 50 ml of a 0.20 N acetic acid solution? Which has a higher hydronium ion concentration? Which has a lower pH?

Hi I KNOW this isnt a homework question but what is the legal age to own a home? is it 18 or 21? I was told its 21 but it doesnt make sense to me.why cant you be 18? I really need to know. It may depend on where you live but your credit line starts when

91. Psychology

what is the unconditioned stimulus (US), unconditioned response (UR), condition stimulus and conditioned response of this example??? 1.)Art goes to a meeting in New Orleans and tries some oysters at the oysters bar. He likes the taste and eats quite few.

92. Physics

Two masses are connected by a string over an ideal pulley as shown. The coefficient of kinetic friction between m1 and the table surface is 𝜇. Find an expression for their common speed after the blocks have moved a distance L. You can assume that you

93. ALGEBRA

How many inches of molding are needed to produce the square picture frame 13" 1/8

94. Science

Determine the pkb of methylamine if the kb is 4.4*10^-4.

95. Math (Simplifying Expressions)

How would I solve this? 48÷4x5-2x5

96. physics

a 2.0 kg bad is held by a string to the ceiling . A 10 g bullet traveling at 200 m/s strikes the stationary bag. the height after the collision is 10.0 cm. assuming there is no friction, determine the speed, in meters per second, of the bag after the

97. Physics

A mass of 60kg is on the edge of a plank. The Plank is 25 m long. There is a wedge 10 m from the 60 kg. Where would you position a 40kg so the plank would not rotate? If you placed the 40 kg at the end, where would you put a 10 kg mass to keep it balanced?

98. algebra

The number of tickets sold each day for an upcoming performance of Handel's Messiah is given by N(x)=-0.6x^2+12+13, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold

Mobile Oil Company accepted a \$10,000, 120 day note, dated March 3, at 8.5% to settle a past due accounts receivable. Mobile Oil discounted the note to raise cash on May 10 at a discounted rate of 9%. What proceeds did Mobile Oil receive?