Thursday
April 24, 2014

Posts by ann


Total # Posts: 1,163

Math
Can you show 1 3/5, 1.3, and 1 1/10 on a number line?

statistics
If the average number of textbooks is 16, the standard deviation is 5, and the average age of a professors is 43, with a standard deviation of 8, which data set is more variable?

Physics
A 79.4-Ω and a 47.7-Ω resistor are connected in parallel. When this combination is connected across a battery, the current delivered by the battery is 0.296 A. When the 47.7-Ω resistor is disconnected, the current from the battery drops to 0.126 A. (a) Determine...

Chem
The National Institute of Science and Technology (NIST) kinetics database lists the rate constant, k, of a particular gaseous reaction as 5.78× 10–10 cm3·molecule^–1·s^–1 at 298 K. Convert this constant, k, to torr^-1 X S^-1.

math
round up 114.29 to nearest cent

english
Identify the correct sentence. a) Georgia wanted only to be loved, Dante wanted only to love her. b) Georgia wanted only to be loved and Dante wanted only to love her. c) Georgia wanted only to be loved Dante wanted only to love her. d) Georgia wanted only to be loved; Dante ...

chemistry
A solution contains 2 mEq/ml of KCL (Molecular weight 74.5). If a 20 ml ampule of this solution is diluted to 1 liter what is the percent strength of the resulting solution?

business
1 for a large company stock/mutual fund would you expect the betas to be positive or negative for each of he factores in a fama french multifactor model? 2 What do you observe abouth the bata coefficients for the different mutual funds? comment on any similarities or differenc...

Physics
You testify as an "expert witness" in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill. You find that the slope of the hill is theta= 12.0°, that the cars were separated by d...

Algebra
How do I solve this equation? Please explain and do step by step. 6m squared -5m-14=0

Math
Number Sense Fabio said that there are 3 times as many people on a basketball team as on a tennis team. Is he correct? Explain why or why not. Tennis--2 players Basketball--5 players Softball--10 players

math
6/7 * 35/1 = 210/7=30 right handed students 4/5 * 30/1 = 120/5 = 24 right-handed brown -eyed students

Corporate Finance
You are given the following for Cardinal & Cardinal, Inc. Their tax rate is 34%. The firm is in need of $5 million dollars in external funds. Your bond advisor suggests that new bond issues can be lower than the current yield to maturity by 1.5% . Existing capital structure: &...

Physics
In the figure below, an electron is moving rightward between two parallel charged plates separated by distance d = 2.40 mm. The particle is speeding up from an initial speed of 3620 km/s at the left plate. |      | ᦉ...

social studies
what are the legislative district numbers for zip code 29621-3504

cultral diversity
Help! check my answer Emergent literacy skills are significantly enhanced by a. the educational or professional level of one or both parents b. engaging in literacy events with other persons,especially adults. c.the family's socio-economic ststus and aspirations. d.quanlit...

Earlychilodhood education
say that again slowly

English
1. George Bernard Shaw criticized The Importance of Being Earnest for (1 point) (0 pts) being too long. (0 pts) not being funny. (1 pt) not having real substance. 2. Choose the word below that best completes the sentence: He’s incredibly ___________; he just can’t ma...

Physics
A rubber ball is attached to a paddle by a rubber band. The ball is initially moving away from the paddle with a speed of 4.0 m/s. After 0.25 s, the ball is moving toward the paddle with a speed of 3.0 m/s. What is the average acceleration of the ball during that 0.25 s? Give ...

PHYSICS
What force must be exerted on the master cylinder of a hydraulic lift to support wt of a 2000 kg car resting on the slave cylinder? master : 2cm diameter,slave: 24cm diameter

physics
what depth of mercury creates a pressure of 1 atm?

calculus
How many gallons of gas is in a cylindrical tank (that is laying on it’s side, the circular bases are vertical, the diameter of the bases are 5 feet, the length of the tank is 8 feet, the gas is at a 2 ft level)?

physics
a person is standing at the top of a 58 m tall hill. He stumbles and falls. As he rolls down the hill, magically friction has no effect on him! when he is still 25.0 m above the base of the hill determine how fast he is moving.

Financial
Jenny has a part time job and her net take-home income is $2000 per month. She needs to allocate her funds to reflect a balanced monthly budget. Jenny's main categories of expenses include rent, utilities, and groceries.

Algebra
Joe can drive from his house to his office in 40 minutes at an average speed of 40 miles per hour. What average is needed to drive the same distance in half an hour? If necessary, round your answer to the nearest tenth.

Algebra URGENT
Write an equation of a line perpendicular to y=2x+3 and passes through (3,4).

Algebra URGENT
Write an equation that is in slop-intercept form of the line that passes through the points: (-1/2, -1) and (3, 5/2).

Algebra
Write a linear equation to model the situation. You borrow $70 from your brother. To repay the loan, you pay $7 per week.

Algebra
16/1

Physics
When a metal pipe is cut into two pieces, the lowest resonance frequency in one piece is 244Hz and that for the other is 454Hz. What resonant frequency would have been produced by the original length of pipe? (Assume the speed of sound in air is 345 m/s) b). How long was the o...

Physics
A source of sound (1140Hz) emits uniformly in all directions. An observer 3.09m from the source measures a sound level of 38.2dB. Calculate the average power output of the source.

Physical science
Physical science a 2.0g metal ball that carries a charge of 10 uC is placed into an electric field. the ball at rest at point A is accelerated to point B with a speed of 1.0 m/s. what is the electric potential difference between point A and point B?

^th grade math,
using mental math and distributive property solve: 25(12)

Physics HELP!!
A square, 0.74m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. This axis is perpendicular to the plane of the square. A force of 26.8N lies in this plane and is applied to the square. What is the magnitude of the maximum...

Physics HELP!!
A lower 0.56m long leg is being exercised. It has a 48.0N weight attached to the foot and is extended at an angle θ with respect to the vertical. Consider a rotation axis at the knee. At what angle θ does the magnitude of the torque equal 14.2 N-m?

chemistry
what elements follow the octet rule?

chemistry... HELP !!!!!!!
For the reaction 2Co^3+ (aq) + 2Cl^- (aq) ----> 2Co^2+ + Cl2 (g) E^o = 0.46 V (STANDARD cell potential) what is the cell potential at (25 deg C) if the concentrations are [Co^3+] = 0.651M , [Co^2+]= 0.846 M, and [Cl^-] = 0.636 M and the pressure of Cl2 is PCl2= 9.30 atm ?

chemistry... HELPP
A gaseous reaction occurs at a constant pressure of 45.0 atm and releases 62.5 Kj of heat. Before the reaction, the volume of the system was 8.60 L . After the reaction, the volume of the system was 3.00 L. Calculate the total internal energy change in kilojoules.

chemistry... HELP
Equilibrium constant question!!!? Standard reduction potentials Reduction half-reaction E(V) Ag+(aq) + e- ---> Ag (s) 0.80 Cu ^2+ (aq) + 2e- ---> Cu (s) 0.34 Sn^4+(aq) + 4e- ---> Sn (s) 0.15 2 H+(aq) + 2e- ---> H2 (g) 0 Ni^2+(aq) + 2e- ---> Ni (s) -0.26 Fe^2+ (a...

chemistry
The standard reduction potentials of lithium metal and chlorine gas are as follows: (for Li, reduction potential is -3.04, for Cl it is 1.36) In a galvanic cell, the two half-reactions combine to 2Li{+](s) + Cl{-}2(g) --> 2Li{+}Cl{-}(aq) cell potential=4.4 V Calculate the f...

working with children from culturally diverse
which cultures are most closely aligned in valuing dependence over autonomy? American mainstream and Native American or Mexican American and Native American

science
If Wire A has a poterntial difference of 50V across it and carries a current of 2A. Wire B has a potential difference of 100V across it and also carries a current of 2A. Compare the resistances, rate of flow of charge, and rate of flow of energy in the two wires?

Internet Server Environments
What is Cold FusionMX and how would you accommodate on a Windows 2000 server?

writing
Could you please proofread this along with punctuation. It's an essay and it will be doubled spaced when I submit it. Thank you In approximately 200–350 words, using compare/contrast strategies, discuss the benefits and/or advantages of shopping online, rather than sh...

English Language
Yes,she is my cousin.- Is the comma identify as an introductory phrase?

Physics HELP!!
Forces of 11.1N north, 19.9N east, and 14.0N south are simultaneously applied to a 3.62kg mass as it rests on an air table. What is the magnitude of its acceleration? b) What is the direction of the acceleration in degrees? (Take east to be 0 degrees and counterclockwise to be...

Physics HELP!!
Two horizontal forces F1 and F2, are pulling an object of mass 3.05kg from two opposite sides. F1 pulls to the right and F2 pulls to the left. The magnitude of F1 is 99.2N. The object moves strictly along the horizontal x-axis, which we chose as positive to the right. Find the...

MEC
two charges repel each other with a force of 0.1N when they are 5cm apart. Find the forces between the same charges when they are 2cm and 8cm apart.

math
72-25

Physics
The forace exerted by the air The problem does not state units, this assuming the weight is Kg and acceration is m/s2 g = 9.8 a = .9 from Netwon law sum of force= ma helicopter weight + frame weight X g + frame weight X a= force exerted by air Force =(7900+1100) x 9.8 + (1100 ...

English
I have to write an essay showing the advantages to online shopping than store shopping. Is an essay doubled spaced?

College Physics
If Wire A has a poterntial difference of 50V across it and carries a current of 2A. Wire B has a potential difference of 100V across it and also carries a current of 2A. Compare the resistances, rate of flow of charge, and rate of flow of energy in the two wires?

physics ..PLEASE HELP ASSIGN DUE SOON :(
Three charges, q1=+45.9nC q2=+45.9nC and q3=+91.8nC are fixed at the corners of an equilateral triangle with a side length of 3.70cm. Find the magnitude of the electric force on q3.

Math Grade 5
Mr. Jacob is 55 years old and Tony is 7 years old. In how many years will Mr. Jacob be 4 times as old as Tony? Please help me solve this.

Physics HELP!!
Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. The magnitude of each of the charges is 3.66 μC, and the lengths of the sides of a triangle are 2.15 cm. Calculate the magnit...

Statistics
Assume that the average annual salary for a worker in the United States is 300,000- and that the annual salaries For Americans are normally distributed with a standard deviation equal to $7,000. Find the following: A. What percentage of Americans earn below $22,000? B. What pe...

science
Explain how to measure the volume of a rock by water displacement?

science
40 centimeters cubed of dry sand is added to a graduated cylinder containing water, the level of the liquid rose 15 centimeters cubed on the scale. What is the volume, in centimeters cubed of air in the sand?

science
A 10 centimeters cubed sample of salt having a mass of 8 grams is added to 20 centimeters cubed of water having a mass of 15 grams. What is the mass of the mixture?

chemistry
A sample of one liquid has a mass of 60 grams and a volume of 50 centimeters cubed; a sample of a second liquid has a mass of 30 grams and a volume of 40 centimeters cubed. They are put in a container and mixed. Can you determine what the mass and the volume of the mixture is?

English1C
I need help writing a fallacy essay about The Wrong InequalityBack to Article » By DAVID BROOKS

math
Please solve this word problem, It will take at least 360 points for Kiko"s team to win the math contest. The scores are 94,82, and 87, but one of Kiko's teammates lost 2 of those points for an incomplete answer. How many points must Kiko earn for her team to win the ...

Math (kindergarten)
39

physics
How do I find the acceleration on a velocity time graph when the graph has an irregular shape.

math
please help me solve , 1/8(x+230)=200

physics
A car traveling 28 mi/h accelerates uniformly for 6.7 s, covering 555 ft in this time. What was its acceleration? Answer in units of ft/s 2

algebra
What is a simpler form of the radical expression? ^4sqrt 81x^20 y^8 A, 3|x^5|y^2 B. 9|x^25|y^4 C. 9x^25|y^4| D. 3x^5|y^2|

math
dr.chen told miranda that her new puppy needs a diet that includes at least 1.54 ounces of protein and 0.56 ounce of fat each day to grow into a healthy dog. each cup of good start puppy food contains 0.84 ounce of protein and 0.12 ounce od fat. each cup of sirius puppy food c...

chem
what is the difference between a bunsen burner and a lab burner?

math
5a-4=6a+12

Psychology
Where are selfish impulses? Examples of social conscience?

math
you invested $4000 in two accounts paying 2% and 9% annual interest, respectively if the total interest earned for the year was $150, how much was invested at each rate. $_was invested at 2% and _$ was invested at 9%

math
x+y+5z=18 x+y+7z=26 x-4y-7y=-35 its a solve a 3 equation solve the system

Psychology
Thank you, Ms. Sue.

Psychology
How do you think your psyche has evolved to meet the challenges of your society and culture in this time and place? Can some give me some examples so that I can get an idea?

maths
x+2a is a factor of (x^3+2(a-2b)x^2-b(8a-3b)x+6ab^2)

ivy tech
Assuming that the data are normally distributed with a mean of 45 and a standard deviation of 3.25, what is the z-score for a value of 40?

budget
budgeting should begin with

Trigonometry
Solve each triange given the indicated measures of angle and sides b=43degrees y=36 degrees a=92cm

COMM 215
When we drive in city traffic, you need to watch the traffic around your carefully. The choices are Pronoun shift in Number, Pronoun shift in Person, Ambiguous Reference, No Error. I picked Pronoun Shift in Person. Is this right?

COMM 215
The capitalized verb agrees with the subject: One of my friends LIKE this brand of coffee. It is True/False. I picked False.

physical science
what are the number of moles of phosphorus in 15 moles of Ca3(PO4)2

mth 121
can you fine the dimensions of a rectangle with a perimeter of 94cm if the length is 2 less than six times the width

Statistics
I know the formula. How do you work backwards?

Statistics
The confidence interval below for the population variance is based on the following sample statistics: n = 25, x-bar = 31.1, and s = 4.2. 9.29 < standard deviation squared < 42.82 What is the degree of confidence?

Statistics
No wonder I keep getting the wrong answer. Thank you so much for helping me how to get the answer. Now I know how to do the next problem which is similar to this problem.

Statistics
But, I'm suppose to use the normal distribution approximation to the binomial distribution.

Statistics
The probability that a radish seed will germinate is 0.6. Estimate the probability that of 130 randomly selected seeds, exactly 90 will germinate. Note: I keep getting the answer wrong.

Chemistry
Thanks

Chemistry
so would my answer be 15ml How much 0.300 M NaOH is required to completely neutralize 30.0 ml of 0.15 M HClO4 Clue: M1V1=M2V2

Chemistry
How much 0.300 M NaOH is required to completely neutralize 30.0 ml of 0.15 M HClO4 Clue: M1V1=M2V2 I still dont get it to i times .300x30.0 then times .300 x.15 i just dont understand what i am actually suppose to multiply

Chemistry
I still dont get it to i times .300x30.0 then times .300 x.15 i just dont understand what i am actually suppose to multiply

Chemistry
How much 0.300 M NaOH is required to completely neutralize 30.0 ml of 0.15 M HClO4 Clue: M1V1=M2V2

english
Do you think that paying attention to your audience, purpose, and content improves the influence of your writing? Why or why not?

english
Identify a serious error you find challenging to overcome in your own writing. What method will you use to avoid this error? Would you recommend the method to others? Why or why not?

algebra
Choose the best response to descrive the polynomial. -4x^3-2x^2+2x A) The coefficients are all negative B) The leading coefficient is negative C) It is a binomial D) It is of degree four. I was thinking it is c could someone tell me if I am right! Thanks!

algebra
Synthesis: Find a polynomial for the shaded area of each figure. 21t+8 is on top of the outer box and 4t is on the left side of the outer box. On the inter box there is 3t-4 and 2t on the left side of the inter box. the area between the outer box and the inter box is shaded. I...

english
D is the answer, collective noun is a special class, name groups [things] composed of members [usually people]. Examples: army audience,board,cabinet,class,committee, company,corporation etc...

US History and Constition
The Monroe Doctrine proclaimed that the Americas should be free from future European colonization and free from European interference in sovereign countries' affairs. It further stated the United States' intention to stay neutral in European wars and in wars between Eu...

Algebra
Simplify. Remember to use absoulute value notattion when necessary. If a root cannot be simplified state this. {(7b)exponent4}^(1/4) I did something wrong when I did it.

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Next>>

Search
Members