# 1.3 /73.814 In significant digit notation, divid, and the answer to two significant digits. I will be happy to critique your work

71,152 questions, page 164
1. ## Algebra 2

I've got some homework about ellipses and I am not sure if I am doing these right. So if you could check my answers I would appreciate it. Thanks!! 1.) Write an equation for an ellipse if the endpoints of the major axis are at (1,6) and (1,-6) and the

asked by Kim on September 14, 2010
2. ## Probability

Let X and W be independent and uniformly distributed on [−1,1]. We have given the following facts: E[X]=E[X^3]=E[X^5]=0 E[X^2]=1/3 E[X^4]=1/5 Suppose that Y=X^3+W Find the LMS estimate of Y, given that X=x. (Notice we are trying to estimate Y from X, not

asked by Anonymous on December 22, 2018
3. ## French help

Are these answers correct? Thank you!! 1. Elle voit ses amis au cinéma. Elle ___la___ voit 2. Nous parlons souvent à nos professeurs tous les jours. Nous __les____ parlons tous les jours. 3.Martine va en Chine, Elle _le_____ va pour étudier la culture

4. ## fin 200 question

Jean will receive \$8,500 per year for the next 15 years from her trust. If a 7% interest rate is applied, what is the current value of the future payments? Describe how you solved this problem, including which table (for example, present value and future

asked by meshelle on July 14, 2009
5. ## Math-Forecasting Statistics

The following data is a sample of daily maximum temperatures in New York in March (from 2006-2008). a. Calculate the mean (1 decimal place) and standard deviation (2 decimal places) of this data. You may use technology to answer this question. Only the

asked by Leora K on July 24, 2018
6. ## teachers aide classroom management techniques

what personal characteristics do the best classroom managers have? (a)congruence,acceptance,reliability,empathy (b)compassion,acceptance,responsibility,empathy (c)compatibility,acceptance,reliability,empathy

asked by susue on August 25, 2011
7. ## Math

A rectangular flower garden, 7 m by 6 m, is surrounded by a grass strip of uniform width. If the total area of the garden and the grass strip is 90 m^2, what is the width of the strip? To solve this, I used the formula 90=(6+2x)(7+2x) where is is the width

asked by Lizzie on December 30, 2008
8. ## Algebra

A ball is thrown upward with an initial velocity of 14 meters per second from a cliff that is high. The height of the ball is given by the quadratic equation where h is in meters and t is the time in seconds since the ball was thrown. Find the time that

asked by Sherry on March 4, 2013
9. ## Math

As you can see from my nickname, math and I don't have great history. That is why I would like someone to check my answer. Q: Samantha types 40 words per minute. How many words can she type in 8 minutes? My Answer: 320 How I got to this: This question

asked by I'm Not GREAT at Math on February 6, 2018
10. ## Algebra

Hello, I have been trying a few ways to do this problem and am not having success. The sum of four consecutive odd integers is -212. Write an expression for the second, third and fourth odd integers. Use these expressions to write, and solve an equation to

asked by Martha on September 18, 2011
11. ## Math (Physics)

A galaxy is moving away from Earth. The "blue" hydrogen line at 434 nm emitted from the galaxy is measured on Earth to be 458 nm . Part A How fast is the galaxy moving? Answer--> v=____ c Part B How far is it from Earth based on Hubble's law? Answer-->

asked by Dom on April 27, 2017
12. ## Math

calculus help needed example: sin-1(-1/2) how do you figure this out? The sin^-1 means the arcSin, or the angle whose sine is ... so sin^-1(1/2) is the angle whose sine is -.5, which is -30 degrees. In your calculator, put in -.5, then press INV sin. so as

asked by Linds on October 25, 2006
13. ## Biology!!

If i do a starch test on a plant cell that comes from a plant exposed to sunlight, which parts of the plant cell will be stained blueblack? 1. nucleus 2. cell wall 3. cytoplasm 4. vacuole I wrote the answer as 4, the vacuole, but the correct answer says 3,

asked by Marrion on October 12, 2009
14. ## Health

When conmparing the flow of lymph in the lymphatic system with the flow of blood in the circulatory system. It can be said that the Lymphatic system also A. uses a pump B. contains fluid that travels in only one direction C.Uses valves to prevent baclward

asked by Brenna on May 2, 2012
15. ## probability

In parts 1, 3, 4, and 5 below, your answers will be algebraic expressions. Enter 'lambda' for λ and 'mu' for μ. Follow standard notation. Shuttles bound for Boston depart from New York every hour on the hour (e.g., at exactly one o'clock, two o'clock,

asked by JuanPro on April 29, 2014
16. ## to bobpursley,math

This is what i have am i wrong or correct.Or how can word it or modify it to be with what the directions are asking? Directions: Create one statement in English representing an algebraic relationship. My answer: PROBLEM: A DOZEN EQQS COST \$1.20. WHAT IS

asked by jasmine20 on January 1, 2007

Could someone check these please?I had place a possessive adjective in place of el 1. El hermano de Juan y Pedro se llama Bret Answer: Su hermano se llama Bret 2.Replace los with possessive Los hermanos de Paco y Linda se llama Santiago y Jose Answer: Sus

asked by Melinda on March 1, 2011
18. ## MATH I NEED HELP

1.If f (x)= square root x^2 -1 and g (x) = square root x-1 , which expression represents f (x)/g(x) for x >1 ? A. square root x-1 B. square root x C. 1 square root x+1 D.square root x+1 My answer was D. 2. f (x)=x^2 +3 upward 10 units A. g (x)= (x +13 )^2

asked by Queta on August 29, 2013
19. ## Physics

Aqua dude can swim at a speed of 2.0m/s in still water. A river is 48 m wide and has a current of 1.5 m/s [E]. He starts at the Southbank and swims so that he is always headed directly across the river. A) what is Aqua dudes velocity relative to the shore?

asked by Franklin on November 22, 2014
20. ## Math

On Joe Martin's graduation from college, Joe's uncle promised him a gift of \$12000 in cash or \$900 every quarter for the next 4 years after graduation. If money could be invested at 8% compounded quarterly, which offer is better for Joe? I have done this

asked by Maggie Hopkins on April 5, 2015
21. ## solid mensuration? help.

Window glass formerly was made by gathering a lump of molten glass on the end of a hollow rod blowing it into the form of a large hollow cylinder about 6 ft. long and 1 1/2 ft. in diameter. This was cut longitudinally and then placed in an oven and heated

asked by sara on May 12, 2012
22. ## chemistry/stiochiometry

for instance Will write a problem. Now, I don't just want the answer, I want to know how to know which substances, and processes in steps and don't spare detail. I am going through high school chemistry. somehow i PAST MY Stoichiometry test. now i am ready

asked by "anonymous" on March 16, 2011
23. ## Introduction to Graphic Design

Hello! Thanks for checking my question out! ____ 9. There are two sculptures of George Washington. One sculpture makes use of sharp edges and abstract shapes, while the other captures a more realistic view. Which of the following is different about these

asked by Da Fash on October 9, 2017
24. ## Maths

A flat circular disc, of radius R, can be modelled as a thin disc of negligible thickness. It has a surface mass density function given by f(r,φ) = k(1 - r2/R2), where k is the surface density at the centre and r is the distance from the centre of the

asked by Matthew on October 28, 2013
25. ## ELECTROLYSIS OF ZnI2

ELECTROLYSIS OF ZnI2 if you have done this experiment Please help me answer these questions as i missed the last half of my chem lab today. 1. What color change occurred when the wire is first heated. -next question is... What is the identity of the

asked by sean on April 18, 2013
26. ## english

1. After reading the two poems "america " and "the tropics in new York" by Claude McKay, compare and contrast the poems. Consider imagery, rhetorical devices, and tone. Which do you think is more peaceful? Why? Support your answer with evidence from the

asked by regenia on March 16, 2019
27. ## Physics

A car is traveling at 54.2 km/h on a flat highway. The acceleration of gravity is 9.81 m/s^2. PART 1: If the coefficient of kinetic friction between the road and the tires on a rainy day is 0.131, what is the minimum distance needed for the car to stop?

asked by Elizabeth on October 3, 2010
28. ## calculus

Annual sales of bottled water in the country in the period 1993-2003 could be approximated by the function below, where t is time in years since 1990. Were sales of bottled water accelerating or decelerating in 2000? How fast? R(t) = 10 t**2 + 100 t + 2400

asked by LC on November 29, 2011
29. ## Precalculus

A cruise ship sets a course N50°E from an island to a port on the mainland, which is c = 170 miles away. After moving through strong currents, the ship is off course at a position P that is N36°E and a = 90 miles from the island, as illustrated in the

asked by Anonymous on October 25, 2014
30. ## Early Childhood Ed.

I have a question but think I know the right answer. Just need someone to verify. Which is not an example of the typical toddler behavior? 1.toddlers are fairly capble of self-feeding 2.toddlers don't like food mixtures 3.toddlers show decided food

asked by Elaine on April 21, 2007
31. ## Algebra

(x)/(x-3)-4-(2x-5)/(x+2) I posted something before this, so now this is how far I got. The answer I know is -(5x^2-17x-9)/(x-3)(x+2) first I get (x)(x+2)/(x-3)(x+2)- (4)(x-3)(x+2)/(x-3)(x+2)-(2x-5)(x-3)/(x-3)(x+2) Then I get x^2+2x-4x^2-4x-24-2x^2-11x+15

asked by Sara on July 20, 2007
32. ## Physics repost

A 2.00 resistor, and a 12.0 resistor are connected in parallel across a 20.0-V battery. What is the current flowing through the 2.00 resistor? A)1.67 A B)1.40 A C)11.6 A D)10.0 A This is all I understand. Can you explain step by step and show how to get

asked by Jon on April 9, 2008
33. ## Algebra

(x)/(x-3)-4-(2x-5)/(x+2) I posted something before this, so now this is how far I got. The answer I know is -(5x^2-17x-9)/(x-3)(x+2) first I get (x)(x+2)/(x-3)(x+2)- (4)(x-3)(x+2)/(x-3)(x+2)-(2x-5)(x-3)/(x-3)(x+2) Then I get x^2+2x-4x^2-4x-24-2x^2-11x+15

asked by Sara on July 20, 2007
34. ## algebra

The following graph shows how a 4-color web printing press depreciates from the year 2006 to the year 2010. It was purchased new in the year 2006; therefore x = 0 represents the year 2006. X – axis (horizontal) = years starting from 0 = 2006 and

asked by jim on February 11, 2012
35. ## math

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of \$42,100 with factory and dealer rebates of \$5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the

asked by buffy on March 17, 2013
36. ## math

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of \$42,100 with factory and dealer rebates of \$5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the

asked by buffy on March 17, 2013
37. ## math

Michael Reeves, an ice cream vendor, pays \$17.50 for a five-gallon container of premium ice cream. From this quantity he sells 80 scoops at \$0.90 per scoop. If he sold smaller scoops, he could sell 98 scoops from the same container; however, he could

asked by trudy on August 11, 2013
38. ## history

Major outcomes of the Spanish-American War included all of the following EXCEPT: A. the establishment of an extensive American empire. B. the emergence of the nation’s status as a world power. C. the reluctance of the government to get involved in other

asked by sharice on March 6, 2011
39. ## Discreet MAth

Describe the graph and why it is consistent with the matrix. How many simple paths are there from vertex 1 to vertex 5? Explain.Which is the shortest of those paths? Part II: Trees Construct and describe a tree that indicates the following: A college

asked by Derric on May 1, 2012
40. ## Discreet MAth

Describe the graph and why it is consistent with the matrix. How many simple paths are there from vertex 1 to vertex 5? Explain.Which is the shortest of those paths? Part II: Trees Construct and describe a tree that indicates the following: A college

asked by Derric on May 2, 2012
41. ## civics

I couldn't not find the answer to this in my book. The county form of local government is found in a. about half the states, b. all but two states, c.only 2 states, d. fewer then half of the states. I am guessing that since my book says " over the past

asked by Tiffany on April 26, 2010
42. ## Operations management

Tax Preparers Inc. works 250 days per year. The company uses adding machine tape at a rate of eight rolls per day. Usage is believed to be normally distributed with a standard deviation of three rolls during lead time. The cost of ordering the tape is \$10

asked by Patrice on March 1, 2012
43. ## Social Studies

Which of the following was not a tribe of North America when Europeans arrived? A.Olmec B.Cherokee C.Zuni D.Dakota Is the answer D? How did the Native American groups of the northern West Coast adapt to their enviorment? A.They built their homes out of

asked by Gwen on August 20, 2014
44. ## science

4. Which of the following is the primary control of how much water vapor the air can hold? a. Number of particulates present b. Temperature of the air c. Specific heat of water d. Amount of dry gases present answer: b 6. Which of the following would cause

asked by ~ on September 19, 2018
45. ## weather

1. Which of the following is the primary control of how much water vapor the air can hold? a. Number of particulates present b. Temperature of the air c. Specific heat of water d. Amount of dry gases present answer: b 2. Which of the following would cause

asked by ~ on September 19, 2018
46. ## linear math

Let u=(2,0,k,-1) v=(-4,0,-3,2) and w= (0,1,0,0). Each answer must be justified(there is no answer where k=nothing) a) find all values of k, (if any) for which u is orthogonal to v b) Find all values of k (if any) for which the set {u,v,w} is linearly

asked by Simon on November 20, 2011
47. ## Math 12 - Review - Quadratic

Could someone please show me ALL the steps to do the following: Equation: 2x^2 = 11 Answer: Square root of 22 over 2, Negative square root of 22 over 2; 2.35, -2.35 Equation: 3m^2 - 4m = -2 Answer: 2 +/- i (imaginary sign) square root of 2 over 3

asked by ... on September 5, 2007
48. ## math

is this anwer correct 9a^2b + 3c + 2a^2b + 5c = ANSWER : 11a^2 + 8c^2 9a^2b + 2a^2b= 11a^2 3c+5c = 8c^2 so the answer IS 11a^2 +8c^2 there are choices a) 19a^2bc b) 11a^2b+8c c) 11a^4b^2 +8c^2 d) 19a^2b^2c^2

asked by kamleen on August 23, 2010
49. ## rf value of lycopene

Is the the rf value of lycopene and with what solvent can you use as a mobile phase on a TLC? I don't know the answer here but I looked on the Internet and found something that may get you started. I found the Rf value for lycopene to be between 0.4 and

asked by paul on February 19, 2007
50. ## Physics

A child pushes a merry-go-round with a force of 55.0 N at an angle tangent to the circle (that is, perpendicular to a radius). If the child pushes it through exactly one full circle, and the merry-go-round has a radius of 1.15 m, how much work does she do?

asked by Meg on June 10, 2012
51. ## Chemistry

Please heellppppppppp!!!! How do you expect the following series of compounds to compare in behavior in the two tests?(Sn1/Sn2 reaction) CH3-CH=CH-CH2-Br CH3-C=CH-CH3 ! Br CH3-CH2-CH2-CH2-Br Please help me answer this question, I really don't understand

asked by Beth on February 9, 2010
52. ## math

I need help differentiating this question: 3e^-4x that's three e to the power of negative 4x. when you differentiate, you get: -12e^-4x thanks, but how come it's not -12e^-4x-1, or do i just not minus a one when the power is a co-efficient? Remember, the

asked by elle on January 25, 2007
53. ## Algebra

Write the equation of a line that contains (-8,4) and the midpoint of the segment connecting (-10,5) and (-5,0) in standard form. I'm not sure what I'm doing wrong. I found the midpoint (-7.5, -3.5), found the slope, and put the equation in standard form.

asked by sarah on July 27, 2016
54. ## spanish 1 b

Lesson 6: Mis vacaciones Unit Test 1. Ellos _______ al teatro en la ciudad. 2. Visité ______ 3.Yo _______ a montar a caballo durante las vacaciones. 4.Ustedes______ temprano 5.Ustedes______ temprano 6.How would you say "I visited Carlos" in Spanish? 7.If

asked by beastmode on May 7, 2019
55. ## Physics

A spy satellite is in circular orbit around Earth. It makes one revolution in 6.01 hours. (a) How high above Earth's surface is the satellite? [Answer in Km] (b) What is the satellite's acceleration? [Answer in m/s^2] I see this posted over and over again

asked by Brenda on September 29, 2012
56. ## math

To win the jackpot in a lottery in Iowa, participants have to select 6 unique winning numbers out of the numbers 1 through 49 in which the order does not matter. What is the probability of winning the jackpot? State your answer as both a fraction and

asked by emma on July 31, 2013
57. ## Math-- Fractions-- I Desperately Need Help!!

I need help with this problem. Estimate 16 20/21 times 28 3/7 minus 4 13/25 plus 8 2/47 as a whole number or as a mixed number where the fractional part is 1/2 (Possible answers) One is the correct answer. A. 452 B. 480 C. 488 D. 492 1/2 I have tried to

asked by Victoria on February 23, 2007
58. ## English

Which excerpt from the play best supports the answer to the reason Anne spend time with Peter in the third read of the diary of Anne Frank? A."I'm sorry Mother, I'm going to Peters room. I'm not going to let Petronella Van Dann spoil our friendship." B."I

asked by Anonymous on April 7, 2015
59. ## algebra

of 8 Multiple Choice: Please select the best answer and click "submit." The rule below shows how to find the distance traveled of an object thrown downward with initial velocity of 3 feet per second. Which answer expresses that rule in the form of an

asked by guerline on February 13, 2012
60. ## math

Bernie put in a garden in her back yard. The garden has a perimeter of 272 feet. She wants to know the total surface area of the garden and all she knows is the perimeter and that the width is 20% or (1/5) of the length. (Remember 20% and the fraction 1/5

asked by jessica on December 9, 2012
61. ## Calculus

Would you please check my answer to make sure I did it right? Bus travel, a bus company finds that monthly costs for one particular year were given by C(t) = 100 + t^2 dollars after t months. After t months the company had P(t) =1000 +t^2 passengers per

asked by Erin on October 9, 2014
62. ## math

I am doing something wrong when I work this question. Can someone show me the steps. I have the answer. x

asked by priscilla on April 14, 2007
63. ## chem

At what temperature will a molecule of UF6 have the same average speed as a molecule of hydrogen gas at 37 degrees C? I was planning on using this set up: ((3RT)/MM UF6)^1/2 = ((3RT)/MM H)^1/2 filling in the known information so you will solve for T of

asked by Cuzzy on January 4, 2007
64. ## Math Binomial theorem

I'm preparing for a test and one of the questions in my text is as follows: In a trivia contest,Sam has drawn a topic he knows nothing about, so he makes random guesses for the 10 T/F questions. Use the binomial theorem to help find a)the number of ways

asked by ann on April 17, 2011
65. ## Math Challenge Check

I am playing a dice game with my friend Kyle. Each of us roles a standard six-side die obtaining a number at random from 1 to 6. What is the probability that my number is greater than Kyle’s number? Answer below was posted last night. Is the answer

66. ## Physics

A uniform rod of length L and mass m initially at rest is struck by a horizontal force F0 a distance x below the pivot O. The rod is free to rotate about its pivot without friction. If F0 is the average value of the force and Δt is its duration. (a) What

asked by Jake on November 17, 2012
67. ## Statistics

A researcher wants to see if gender plays a role in where we sit in a restaurant. An analysis of survey data yields the following contingency table, chi-squared value, and p-value: Tabulated statistics: Gender, Seating Rows: Gender Columns: Seating Back

asked by Sheri on July 26, 2012
68. ## chemistry

Which properties of a gas increase linearly as the temperature is increased? A. Volume and density B. Volume and pressure C. Amount of gas and density D. Amount of gas and volume I believe the answer is A or D But I am pretty sure the answer is a

asked by Cortney on March 23, 2015
69. ## Chemistry

Which properties of a gas increase linearly as the temperature is increased? A. Volume and density B. Volume and pressure C. Amount of gas and density D. Amount of gas and volume I believe the answer is A or D But I am pretty sure the answer is a

asked by Cortney on March 23, 2015
70. ## calculus

Find an equation of the tangent line to the curve at y = cosx - sinx (pi, -1) I found y'= -sinx - cosx and used the equation of the tangent y = mx +b I input the values and get -1 - [(-sinx - cosx) * pi] = b the answer says it is y = x - 1 - pi I have no

asked by Daniel on October 14, 2011
71. ## Physics- Mechanics

The speed of the tip of the minute hand on a town clock is 0.00136 m/s. (a)What is the speed of the tip of the second hand of the same length? Answer in units of m/s. (b)What is the centripetal acceleration of the tip of the second hand? Answer in units of

asked by Genevieve on September 17, 2010
72. ## Math- Question

What is the absolute value of -(-6.8) Would it be -6.8 or -6.8? I'm thinking it's 6.8 Imagine a number line. The absolute value is the distance from a given point to zero, right? Distance cannot be negative. Therefore, the distance from (-6.8) to zero is

asked by Bluebird on March 2, 2007
73. ## calc

I assume the poster was trying to type "oblique asymptote" from your answer of 3x+2 + 7/(x-1) we can conclude that there is an oblique linear asymptote of y = 3x + 2, and a vertical asymptote at x = 1 for the original function given. how do u find obblique

asked by Reiny on March 26, 2007
74. ## Math problem

1.You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an \$80,000 loan from your family and a \$38,250 small business loan. These loans must be repaid in full within

asked by Avery on November 20, 2011
75. ## algebra

1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an \$80,000 loan from your family and a \$38,250 small business loan. These loans must be repaid in full within

asked by sally on March 16, 2010
76. ## English

1. Where is this country? 2. What is this country? 3. What country is this? 4. What country is it? Answer: The country is Russia. [What is the suitable question for the answer?]

asked by rfvv on March 24, 2018
77. ## ENGLISH Correcting #5,6,8 & 9

5)Both Ada and Phil are evaluating their thesis statement, topic sentences, and evidence. If Ada finds that her essay doesn't have a thesis statement identifying the topic of the essay, Ada will reread the essay and decide what the main point of the essay.

asked by Basti on November 25, 2015
78. ## math

I'm having a little trouble solving inverse variation. I have four problems - 2 are solved using proportions, 2 are not --- why can they not all be solved using proportions? 1. y varies inversely with x. If y = 40 when x = 16, find x when y = -5 If I use a

asked by Carly on November 10, 2017
79. ## Math

Micheal gave 1/12 of his money to Sally and 1/5 of his remaining money to Heidi. If he still had \$704, how much money did he have originally? The answer is \$960 I was told to take the fraction of what was left and multiply it by what Heidi took: 1/12 +

asked by Jenny on October 13, 2014
80. ## Customer Service

1. Which of the following is strategies my best ensure a positive relationship with supervisor? A. Answering any criticism concerning your job performance with a strongly worded defense B. Gathering answers to any questions you may have regarding your

asked by Shamie on September 25, 2013
81. ## Math

Of households in the United States, 18 million, or 16%, have three or more vehicles, as stated in USA Today (June 12, 2002), quoting the Census Bureau as the source. (a) If two U.S. households are randomly selected, find the probability that both will have

asked by Jane on July 4, 2012
82. ## Social Studies

Part 1 • Christianity vs. Islam in Feudal Europe • Catholics vs. Protestants in Renaissance and Reformation • Christianity vs. Native American religions in Global Convergence "I chose Christianity vs Islam in Feudal Europe 1. Select a Topic Based on

asked by Who Dis on November 26, 2018
83. ## English/Literature

In the novel, "The Picture of Dorian Gray" by Oscar Wilde, there is a character by the name of Lord Henry. On a test on this book, I had the question, "How does Lord Henry speak?" I responded, "Lord Henry speaks using his wit and brilliance. His voice is

asked by Anonymous on November 16, 2008
84. ## physics

What is the volume occupied by 7.0 g of hydrogen under a pressure of 2.6 atm and a temperature of 300 K? answer is .0332 m^3. how? A steel cylinder of radius 7.0 cm and length 4.0 cm is placed in end-to-end thermal contact with a copper cylinder of the

asked by jawn on December 3, 2009
85. ## Maths

Calculate the output of a tidal barrage in mega watts if the basin is 30km2 and the tidal range is 6m. E = PA R^2g/2 P = 1020Kg m-3 g = 9.81m-2 R = 6m A = 30*10^6 The answer is 5.4*10^12j butwhat is this in mega watts Thank you jason If you use an area of

asked by jason on July 9, 2006
86. ## math

Consider the following set of data. (18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) Incorrect: Your answer is incorrect. . (b) Calculate the

asked by tracy12 on June 25, 2013
87. ## Who is correct? (chemistry issues here)

how can this person say that I googled info? (I created it randomly out of my head) and be so ungrateful that I spent the time out of my day to help? Or is it I don't know what I'm talking about and a "condensed structure" is not the answer to the homework

asked by ~christina~ on May 6, 2008
88. ## Engineering Math

An unknown radioactive element decays into non-radioactive substances. In 120 days the radioactivity of a sample decreases by 59 percent. What is the half life of the element? How long will it take for a sample of 100 mg to decay to 77 mg? The answer is

asked by Erica on September 23, 2016
89. ## Math - Repost for Connexus Student

This was originally posted on another student's thread. Hi I'm on Part 2 of the Test can I have some help bc next week on the Monday I have state testing so can I get some support and help I----------------I 4 mm I-----------------I 3 mm 15 mm Not drawn to

asked by Ms. Sue on May 1, 2019
90. ## Intro to Probability, please check my work.

A fair coin is flipped three times. You win \$5 every time the outcome is heads. Let the random variable X represent the total number of dollars you win. (a) List the sample space. (b) Determine the probability function of X. ====================== Answer:

asked by Amelie on February 17, 2008
91. ## Math

I'm in seventh grade and working on this math test based on lines and planes. I'm stuck on this one question and I don't understand what the question is asking me to do. The question is: Identify a segment skew to GH. I am not asking for the answer, I am

asked by DustyRose<3 on January 5, 2017
92. ## physics

A light, inextensible cord passes over a light, frictionless pulley with a radius of 11 cm. It has a(n) 14 kg mass on the left and a(n) 4.3 kg mass on the right, both hanging freely. Initially their center of masses are a vertical distance 2.1 m apart. The

asked by Lauren on July 7, 2014
93. ## history

show how immigration has helped to shape America and describe some of the barriers immigrants have faced in their struggle for equality i'm stuck on this question my teacher said the best answer will begin with colonists and go up through Irish/ Asian

asked by history on April 21, 2009
94. ## Social Studies

I am having a problem with the following question. I have read and re-read my text book in search of the proper answer to no avail, so I turn to this board for assitance please. In comparison to political life on the continent, the British system was A.

asked by Keith on November 9, 2007
95. ## busn

Which one of the following activities best exemplify working capital management. For this exercise you will be choosing more than one option for your answer. 1. Identify three good investment opportunities for the firm. 2. Obtain a short-term loan to

asked by SUSI on September 6, 2011

Choose the direct object(s), if any, in the sentence. A grapefruit tree can bear 1,500 pounds of fruit each year. A: pounds B: 1,500 C: year D: no direct object My answer is A Choose the direct object(s), if any, in the sentence. Nathan went to the

asked by Skye on November 10, 2014
97. ## math

A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c)

asked by Nora 2 on May 30, 2013
98. ## Math

A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c)

asked by DeeDee on May 29, 2013
99. ## Math

A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c)

asked by DeeDee on May 28, 2013
100. ## physics

A book weighing 20 N is placed on a table. How much support force does a table exert on the book? Answer in units of N. What is the net force on the book in this case? Answer in units of N.

asked by Wendia on October 4, 2010