# total normal stresses of 110 and 40 kpa are applied to two planes at right angles in an element of soil. the shear stress acting on those palnes is 20 kpa. what must be the value of the pore pressure

33,844 results, page 86
1. ## Math

_The_Natural_Base_e_ An accident in 1986 at the Chernobyl nuculear plant in the Ukraine released a large amount of plutonium (Pu-239)into the atmosphere. The half-life of Pu-239 is about 24,110 years. Find the decay constant. Use the function N (t) = N 0 e

asked by Student09 on December 3, 2012
2. ## maths

Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight north-south path, A being due north of B. the bearings of the carin from A and B are 110 degrees and 80 degrees, respectively. choose the two options which give

asked by kelly on April 19, 2007
3. ## Anatomy

I have the formula to problem but can not come up with any of the answers. Problem: Calculate the cardiac output if heart rate (HR) is 90 beats per minute, stroke volume (SV) is 110 ml/beat, end diastolic volume (EDV) is 140 ml, and end systolic volume

asked by Mary on June 5, 2016
4. ## Fine Arts

2. Miniature painting continued into the Romanesque period. These paintings were found a. on the top of columns b. in churches c. in religious manuscripts d. monasteries 4. Which of the following artists used small flat planes of colors to compose a look

asked by mysterychicken on January 24, 2011
5. ## organi chemistry

Calicheamicin is an antitumor compound produced by a microorganism isolated in Texas soil. Below is the enediyne core of calicheamicin, which is responsible for its antitumor activity. (a) Mark the hybridization state of each carbon. Ignore the –R

asked by marta on January 25, 2014
6. ## Physics

A velodrome is built for use in the Olympics (see the figure below). The radius of curvature of the surface is 15.9 m. At what angel should the surface be banked for cyclists moving at 15.0 m/s? Choose an angle so that no frictional force is needed to keep

asked by Emily on September 30, 2014
7. ## math

The revenue from selling q items is R(q) = 600q − q^2, and the total cost is C(q) = 150 + 50q. Write a function that gives the total profit earned. It is my understanding that profit = revenue - costs. So when I tried to write the function for total

asked by Jasmine on November 4, 2015
8. ## ThermoChemistry

Calculate the final temperature of solution when 10 g of oxalic acid, (COOH)2(s), is dissolved in 110.0 mL of water that is initially at 26 C. The enthalpies of formation of oxalic acid in the solid and aqueous phases are -826.8 and -818.8 kJ/mol,

asked by LaurenB on December 2, 2011
9. ## algebra

I have a problem with break even analysis? the question is I'm trying to find the cost between 2 businesses to care for my lawn. The one company has an initial fee of \$200+\$50an hour for labor cost and the second company has an initial cost of \$300+\$25an

asked by Sylvia on March 15, 2011
10. ## Current/Magnetic force

A high voltage power line carries a current of 110 A at a location where the Earth's magnetic fields has a magnitude of 5.9 x 10^-4 T and points north at an angle of72 degrees below the horizontal (toward the earth surface). Find the direction and

asked by Matt on April 5, 2012
11. ## Operations Management

The maintenance department of a hospital uses 816 cases of liquid cleanser annually. Ordering costs are \$12, carrying costs are \$4 per case a year, and the new price schedule indicates that orders of less than 50 cases will cost \$20 per case, 50 to 79

asked by Bob on March 7, 2009
12. ## statistics

Consider an upper-tail test of hypothesis for the difference in two population means. The sample data from the first population is: n = 50, x-bar = 110, s = 10. The sample data from the second population is: n = 75, x-bar = unknown, s = 11. We conclude the

asked by zac on November 17, 2013
13. ## statistics

Consider an upper-tail test of hypothesis for the difference in two population means. The sample data from the first population is: n = 50, x-bar = 110, s = 10. The sample data from the second population is: n = 75, x-bar = unknown, s = 11. We conclude the

asked by zac on November 28, 2016
14. ## PreCalc

The “Hatch Shell” in Boston has the arch with semi-elliptical form with a horizontal major axis. The base of the arch is 110-foot long and the highest part of the arch is 40 feet above the scene. Find the height of the arch of the “Hatch Shell” 33

asked by Jake on October 12, 2017
15. ## math

if a and b are acute angles, sin(a+b)= 56/65, and sin b = 5/13, find sin a

asked by giddy on May 11, 2011
16. ## math

if a and b are acute angles, sin(a+b)= 56/65, and sin b = 5/13, find sin a

asked by giddy on May 11, 2011
17. ## geometry

if one of the two vertical angles has a measure of 3x and the other has a measure of 5x - 80. Find the measure of each.

asked by angel on September 14, 2016
18. ## Physics

What is the critical angles for water ice when surrounded by air? theda critial = arcsin(n2/n1) =arcsin(1/n1) What is the index of refraction of water ice? also is the above equation correct?

asked by Andrea on April 16, 2008
19. ## physics

A 0.050-m-long wire is carrying a current of 2.0 A at right angles to a 0.15-T magnetic field. What is the magnitude of the force exerted by the magnetic field on the wire? A. 0.015 N B. 0.0037 N C. 0.67 N D. 6.0 N It's A right? 0.05*2*0.15

asked by sally on May 21, 2009
20. ## Pre calculus

Dternine the unknown side and angles of each triangle give both solutions. In Abc. Angle C is 31 degrees. a is 5.6 cm and c is 3.9 cm. solve this triangle and give both solutions along with all the steps. tanks

asked by Pre cal 11 on February 26, 2016
21. ## geometry

I relly need help on this question. "Determine whether the conjecture is true or false.Give an example if its false". Given: angle ABC,angle DBE are congruent. Conjecture:They are vertical angles.

asked by stef on September 18, 2012
22. ## Trig

From two different tracking stations, a weather balloon is spotted from two angles of elevation, 57degrees and 83 degrees, respectively. The tracking stations are 15 km apart. Find that altitude of the balloon. Any help given will be greatly appriciated

asked by Sonia on July 20, 2010
23. ## Mathematics

Determine two coterminal angles (one positive and one negative) for θ = −503°. a. 217°,− 323° b. 217°, − 143° c. 307°, − 413° d. 127°, − 323° e. 127°, − 233°

asked by Camille on July 9, 2016
24. ## Math

What is the square of the least two-digit prime number? What is the least two-digit prime number? 11 how do i show that the polygons are similar by checking that corresponding angles have equal measures and corresponding sides are proportional? 10 11 So

asked by Christian on January 11, 2007
25. ## Pre Calculus

Determine two coterminal angles (one positive and one negative) for θ = −503°. a. 217°,− 323° b. 217°, − 143° c. 307°, − 413° d. 127°, − 323° e. 127°, − 233°

asked by Jessica Maths on July 10, 2016
26. ## Physics

The steel ball is suspended from the accelerating frame by the two cords A and B. The angles (they are on the inside) are both 60 degrees. Determine the acceleration of the frame which will cause the tension in A to be twice that in B. The acceleration is

asked by Ian on October 4, 2012
27. ## physics

A bicyclist is pedaling along a road that is sloped upward with angle theta. At which of these road elevation angles must the bicycle wheels exert the greatest force back on the road to move the bicycle forward at the same constant speed?

asked by marie on October 8, 2014
28. ## geometry

1. Triangle ABC has a 63.0-degree angle at B, and side AC is 13.6 cm long. What is the diameter of the circle circumscribed about ABC? 2. And: Given any triangle ABC, with sides a, b, and c opposite angles A, B, and C, respectively, what can be said about

asked by Esi on April 12, 2010
29. ## physics

A traffic light weighting 145 newtons hangs from a vertical cable tied to two other cables that are fastened to a support. The upper cables make angles of 31.0 degrees and 57.0 degrees with the horizontal. Find the tension in each of the three cables.

asked by mike on October 30, 2014
30. ## geomery

1. Triangle ABC has a 63.0-degree angle at B, and side AC is 13.6 cm long. What is the diameter of the circle circumscribed about ABC? 2. And: Given any triangle ABC, with sides a, b, and c opposite angles A, B, and C, respectively, what can be said about

asked by Esi on April 12, 2010
31. ## Geometry

Given: Segment CE bisects

asked by Kara on November 8, 2012
32. ## Finance

Steve's ski shop has a net income of \$389,000 with total sales of \$2.5 million. Currently, the shop has debt of \$500,000, equity of \$800,000; receivables are 1.5 percent of sale, and Average total assets of \$2,000,000. What is the Return on Equity? (Use

asked by Andrew on February 9, 2014
33. ## science

Suppose that you hold a garden hose on the ground. It spurts water at a speed of 6,0m.s' (a) at what angle (to the horizontal) should you hold the hose pipe if you want to water plants 2m away? (b) explain why there are two possible angles?.

asked by Mykmoloko on February 9, 2011
34. ## Math-soh cah toa

A bridge is 140m long.From the ends of the bridge, the angles of depression of a point on the river under the bridge is 41° and 48°. How high is the bridge above the river to the nearest meter. ( I know the answer is 68m, I just need to know how to get

asked by Kennedy on April 7, 2016
35. ## Trig

A plane is flying at 240 mph heading North 60 degrees East. The wind is blowing at South 30 degrees East at 30 mph. What is the largest and smallest angles?

asked by Anonymous on June 25, 2011
36. ## Col. Algebra

I'm needing help with understanding /solving this problem. Can you please help? In triangle ABC, the angle C is six times as large as angle A. The measure of angle B is 20 degree greater that that of angle A. Find the measure of the angles.

asked by Kelli on April 10, 2017
37. ## Math

Ok we are doing central angles and arcs and I can't figure out how to solve this problem: An arc is 70.7 m long and it subtends a central angle of 2ð/7. Find the diameter of the circle. How do you solve for this type of problem?

asked by Breann on September 16, 2007
38. ## Physics

The two angled ropes used to support the crate in (Figure 1) can withstand a maximum tension of 1700N before they break. What is the largest mass the ropes can support? The two angles given are 30 degrees and 45 degrees.

asked by Skyler on February 12, 2015
39. ## Psychology - writing paper - Questions

The role of myelin with regard to nerve impulse transmission. How MS disrupts normal brain function A description of the dysfunctions the MS victim might experience if the disease where to attack the myelencephalon, metencephalon, mesencephalon,

asked by Anonymous on October 4, 2009
40. ## Psychology - Writing Paper- Questions to be answer

1. The role of myelin with regard to nerve impulse transmission. 2. How MS disrupts normal brain function. 3. A description of the dysfunctions the MS victim might experience if the disease where to attack the myelencephalon, metencephalon, mesencephalon,

asked by Anonymous on October 4, 2009
41. ## Statistic 103

The average teachers salary in Connecticut( ranked first among states) is \$57,337. suppose that the distribution of salaries is normal with a standard deviation of \$7500. What is the probability that a randomaly selected teacher makes less than \$52,000 per

asked by Jennifer on April 13, 2011
42. ## •To ; Ms sue or other math helpers

My answers are at the bootom, please check them at a restaurant the menu included the following choices: coffee..... \$3.50 soup of the day....... \$5.95 garden salad..... \$6.95 catch of the day.... market value cheesecake...... \$7.75 a.) sheeyin and kaitlyn

asked by Rihanna on June 9, 2013
43. ## math

1.)Explain why ironing boards always remain parallel to the floor and can be adjusted for people of various heights. You may want to consider the following: a.)The legs of the board are built so that AD = BD and DE = DF, and ADF and BDE are straight lines

asked by anon on July 21, 2010
44. ## Ms. Sue

2.Current liabilities: entries and disclosure. A review of selected financial activities of Visconti's during 20XX disclosed the following: 12/1: Borrowed \$20,000 from the First City Bank by signing a 3- month, 15% note payable. Interest and principal are

asked by quita on August 26, 2013
45. ## UV

the two lenses in contact are 45 cm away from the object and the distance of the object from the image is 110 cm. if one of the two lenses in contact has a focal length of 15cm, what is the focal length of the second lens? thanks :)

asked by Melissa on March 8, 2014
46. ## Economic

How is income distribution affected in monopolies? The market for fertilizer is perfectly competitive. Firms in the market are producing output, but they are currently making economic losses. a. How does the price of fertilizer compare to the average total

asked by Mariah on November 26, 2006
47. ## weighted average?

if you have 70 calls that come in during one minute and 3 seconds..and then you have 10 calls come in at a total of 15 seconds. what is the weighted average of calls and time? I assume you want the weighted average of the frequency of receiving calls. The

asked by Cherilyn on December 12, 2006
48. ## Chemistry

The pH of 0.50 M HBrO(aq) is 4.50. Calculate the change in pH when 6.50 g of sodium hypobromite is added to 110. mL of the solution. Ignore any change in volume. Ka of HBrO is 2E-9 I found the amount of moles used for each (.0547 mol NaBrO, and .055 mol

asked by Trixie on March 16, 2010
49. ## Physics

A jet plane lands with a speed of 110 m/s and can accelerate with a maximum magnitude of 7.00 m/s2 as it comes to rest. (a) From the instant the plane touches the runway, what is the minimum time interval needed before it can come to rest? (b) Can this

asked by KM on September 10, 2011
50. ## chemistry

Predict the physical state of ammonia at -50 degrees C (Mp= -77 degrees C, Bp= -33 degrees C) and normal atmospheric pressure.

asked by yppum on December 13, 2009
51. ## Statistics

The distribution of heights of adult American men is approximately normal with a mean of 68 inches and a standard deviation of 2 inches. What percent of mean are at least 72 inches tall?

asked by Anonymous on July 4, 2013
52. ## Algebra

Of the following variables, which would NOT exhibit normal distributions? I: Height, Weight II: Test Scores III: Flipping a coin Select one: a. I Only b. III Only c. I and II d. I, II, and III

asked by Anonymous on February 22, 2019
53. ## math

The distribution of heights of adult American men is approximately normal with a mean of 68 inches and a standard deviation of 2 inches. What percent of mean are at least 72 inches tall? Thanks!!

asked by Anonymous on July 5, 2013
54. ## Science

Characteristics of a normal fault, reverse fault, and strike slip fault. I think most everything you need is on the following page: http://en.wikipedia.org/wiki/Geologic_fault

asked by Liz on April 1, 2007
55. ## math

How would I do this? A sum of money is divided among three persons, X,Y,Z, kn the ratio 10:7:5. If Y gets \$14 more than Z, how much will X get and what is the total sum of money? There is no total sum so how do I find it?

asked by Alex on October 24, 2009
56. ## MATHS

A PERSON HAS 1&2 RUPEE COINS WITH HIM.TOTAL NUMBER OF COINS WITH HIM IS 50.TOTAL AMOUNT WITH HIM IS 75.FIND HOW MANY 1&2 RUPEE COINS ARE THERE WITH HIM

asked by monica on August 22, 2011
57. ## MATHS

A PERSON HAS 1&2 RUPEE COINS WITH HIM.TOTAL NUMBER OF COINS WITH HIM IS 50.TOTAL AMOUNT WITH HIM IS 75.FIND HOW MANY 1&2 RUPEE COINS ARE THERE WITH HIM

asked by monica on August 22, 2011
58. ## Physics

The diagram below shows two vectors, A and B, and their angles relative to the coordinate axes as indicated. DATA: α= 45.9o β= 57.6o |A| = 7.9 cm. The vector A - B is parallel to the -x axis (points due West). Calculate the magnitude of the vector A+B. I

asked by jameson on September 16, 2012
59. ## Algebra & Stumped

I am stumped on this question which I belive I will never get an answer to it Shelly hopped onto her bicycle and pedaled to the park at 14 miles per hour. Then she whizzed back at 20 miles per hour. If the total trip took 3 2/5 hours how far was it to the

asked by Stumped on April 9, 2018
60. ## Accounting

A company has two major businesses that it operates. One business manufactures and sells unicycles for commercial use in circuses, etc. (total sales of \$150M), and the other sells bicycles to the public (total sales of \$20M). The unicycle business occupies

asked by Anonymous on March 31, 2008
61. ## math

A small, medium, and large sized chicken were weighing themselves on a scale. The large and medium chicken steppedon the scale together with a total weight of 30 lbs. The large and small chicken had a total weight of 25 lbs. The small and medium chickens

asked by Leann on January 17, 2012
62. ## math

A small, medium, and large sized chicken were weighing themselves on a scale. The large and medium chicken steppedon the scale together with a total weight of 30 lbs. The large and small chicken had a total weight of 25 lbs. The small and medium chickens

asked by Leann on January 17, 2012
63. ## physics

1.) A squirrel found a pile of nuts 80 meters from its nest. The squirrel made one trip from its nest to the pile. The squirrel with nuts in its mouth headed back towards the nest for 35 meters when it saw a cat. Seeing the cat, it dropped its nuts and ran

asked by cindy on August 29, 2012
64. ## math/physics

Forces with magnitudes of 2000 newtons and 900 newtons act on the machine part at angles of 30 degrees and -45 degrees respectively, with the x-axis. Find the direction and magnitude of the resultant of these forces.

asked by Cydni on April 10, 2012
65. ## math

The measures of two supplementary angles are in the ratio 5:1. What is the measure of the smaller triangle? A/B = 5 A + B = 180 Solve those 2 equations in two unknowns. B is the smaller angle. Hint: substitute 5B for A in the second equation. Then only B

asked by Peggy on February 23, 2007
66. ## Math

isoceles triangle with vertex of 45 degrees, base angles are 67.5 degrees. The 2 legs are 10' in length. What is the length of the base? (I am an older adult with minimal math skill. Just have a building project.)

asked by Tom on April 30, 2016
67. ## Trigonometry

A person can swim at a speed of 2 kilometers per hour in still water. If he heads across a river at right angles to current of 5 kilometers per hour, find his speed in relation to the land and the direction in which he actually moves.

asked by John on March 5, 2018
68. ## Physics

F1 and F2 are two horizontal forces of 70 N each, acting on a wagon. They are at 45° to the x-axis and at right angles to each other. A third force, F3, also 70 N, acts along the positive x-axis. What if, instead, F2 acted in the opposite direction from

asked by arcos15 on September 23, 2012
69. ## physics

A wire that is 70 cm long, carrying a current of 6.5 A, is at right angles to a uniform magnetic field. The magnitude of the force acting on the wire is 0.60 N. What is the strength of the magnetic field?

asked by Jeff on March 10, 2013
70. ## chemistry

Why isn’t the six atom ring created when ASA binds to Fe3+ flat like the benzene ring? is it because that Fe3+ distorted the angles tats why it is not flat

asked by eng on January 21, 2010
71. ## math

Find the measure of the interior angle in a regular polygon if the ratio of the sum of the measures of the interior angles to the sum of the measures of the exterior angels is 4

asked by johanna on December 12, 2014
72. ## maths

From an observer 0, the angles of elevation to the bottom and top of the flag pole are 36 degree and 38 degree respectively. The base is 200m. Find the height of the flag pole.

asked by Shane on April 5, 2013
73. ## maths

From an observer 0, the angles of elevation to the bottom and top of the flag pole are 36 degree and 38 degree respectively. The base is 200m. Find the height of the flag pole.

asked by Shane on April 5, 2013
74. ## math

In triangle ABC,angle B=2times angle A. The bisectors of these angles meet at D,while BD extended meet AC at E. If angle CEB=70 degrees, find angle BAC.

asked by roldan on August 6, 2016
75. ## Math

A flag pole is supported by two wires, each attached to an anchor in the ground 10m from the base pole. The wires have angles of elevation of 37 degrees and 47 degrees

asked by Anonymous on April 25, 2012
76. ## math

A stirring blade is attached at the level of the center of the wheel. Find the distance from the center of the wheel to the stirrer blade for 30° and 225° angles of rotation.

asked by Anonymous on February 10, 2016
77. ## Precalculus

Okay I posted this before but I am still not sure. How would you solve for M? The resultant of two forces acting on a body has a magnitude of 80 pounds. The angles between the resultant and the forces are 20° and 52°. Find the magnitude of the larger

asked by Hanson on August 9, 2011
78. ## Calculus

The base of an isosceles triangle is 8 feet long. If the altitude is 6 feet long and is increasing 3 inches per minute, are what rate are the base angles changing?

asked by Claire on May 11, 2016
79. ## Economics

The firm currently uses 50,000 workers to produce 200,000 units of output per day. The daily wage per worker is \$80, and the price of the firm’s output is \$25. The cost of other variable inputs is \$400,000 per day. Assume that total fixed cost equals

asked by Angela on May 23, 2011
80. ## chemistry help!!! (clueless)

1. Consider the conductance meter and the titration method of determining the salt content of a brine sample. Discuss at least two advantages and two disadvantages of each method. 2. A corrosion technologist pipetted a 50.00 mL sample of an unknown brine

asked by lightning on June 19, 2006
81. ## Finance

Joe and Sue invested \$1500 at Bank America in 2000, at 4% compounded quarterly. In the year 2005 they moved to another city and took the total money from their first investment added \$500 and invested it at Bank Bravo, at 5% compounded quarterly. a. What

asked by Mai on April 11, 2014

Roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many student tickets did Roberta sell? From this result, if the total cost of a student ticket was three-fourths the cost of an adult ticket, and

asked by JJ on October 17, 2010
83. ## algebra

At the Wild Thing Zoo, you can rent a motorized cart to tour the grounds for a \$4 initial charge and \$4 per hour. An equation that represents the total cost y for x hours is y = 4 + 4x. At Safari Zoo, you can rent the same cart for a \$3 initial charge and

asked by Sophie on December 21, 2012

Roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many student tickets did Roberta sell? From this result, if the total cost of a student ticket was three-fourths the cost of an adult ticket, and

asked by 123ABC on October 18, 2010
85. ## physics

a car moving at 10ms - was uniformly accelerated for 5s until it velocity reaches 20ms -. it then maintain the speed for another 20s after which the brakes were applied as the vehicle was finally brought to rest in a further 10s.draw the velocity time

asked by queenlatifah on February 8, 2016
86. ## finance

Use the following scenario to answer Discussion Question 2. 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,

asked by Anonymous on September 17, 2009
87. ## accounting and finance

1.Yukon Bike Corp. manufactures mountain bikes and distributes them through retail outlets in Canada, Montana, Idaho, Oregon, and Washington. Yukon Bike Corp. has declared the following annual dividends over a six-year period ending December 31 of each

asked by Anonymous on November 12, 2015
88. ## STAT-discrete random varaibles

a driver passes 4 sets of traffic lights. the random varaible X is the number of traffic lights he has to stop at. the probabilty distribution for x is given: x 0 1 2 3 4 prob 0.1 0.2 0.3 0.2 0.2 a) find the upper quartile of the number of traffic lights

asked by mick on April 22, 2007
89. ## statistics

A popular retail store knows that the purchase amounts by its customers is a random variable that follows a normal distribution with a mean of \$30 and a standard deviation of \$9. What is the probability that a randomly selected customer will spend between

asked by Selene on September 24, 2013
90. ## math

The FunTime Amusement park customer load during the summer follows a normal distribution with mean 450 and standard deviation 80. Determine the probability that the number of customers on any given day during the summer will be less than 420.

asked by Matt on September 29, 2009
91. ## Biology

Color Blindness is inherited as a sex linked recessive. If a color blind woman marries a man with normal vision, what would you expect in their children? Show a cross I put that X- x- Xx x-

asked by Ash on February 19, 2015
92. ## chemistry

Benzene has a heat of vaporization of 30.72kJ/mol and a normal boiling point of 80.1 C. At what temperature does benzene boil when the external pressure is 490 ? I think I have the equation setup, but I can't figure out how to solve for T2..please help

asked by hannah on July 10, 2011
93. ## Physics

A person struggles to read by holding a book at arms length, a distance of 50.0 cm. What power of reading glasses should be prescribed for him, assuming they will be placed 2.0 cm from the eye and he wanted to read at normal near point of 25.0 cm?

asked by Anonymous on May 25, 2015
94. ## math

Students were given an exam with 300 multiple-choice questions. The distribution of the scores was normal and mean was 195 with a standard deviation of 30. What was the score of students who scored in the middle of the class? (50% did better, 50% did

asked by Patty on January 31, 2010
95. ## phyics

The figure shows a person whose weight is W = 500 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position.

asked by bobby on November 1, 2013
96. ## stats

A popular retail store knows that the purchase amounts by its customers is a random variable that follows a normal distribution with a mean of \$30 and a standard deviation of \$9. What is the probability that a randomly selected customer will spend \$20 or

asked by cate on March 29, 2013
97. ## Stat

Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution

asked by Anonymous on October 1, 2014
98. ## Chemistry

1) Given the following “substances” and their normal boiling points, in celsius. G:43.8 Celsius J:93.7 M:56.7 T: 83.5 R:63.6 Which set below correctly lists some of these liquids in order of increasing intermolecular forces at 20 oC? a) G < R < J b) J

asked by Hannah on January 29, 2012
99. ## chemistry

hi this is a question for my lab. explain why the addition of bromine to trans-cinnamic acid takes place more slowly than the addition of Br2 to a normal alkene like 3-hexene or cyclohexene thankss

asked by steve on January 26, 2009
100. ## Stats-BOB PURSLEY Help, do you know this?

Is there a rule to figure out if this is a true or false statement? A sample size of 900 is not large enough to conclude that the sampling distribution of p is a normal distribution, when the estimate of the population proportion is .995.

asked by help on October 24, 2010