Friday
July 25, 2014

Posts by mark


Total # Posts: 1,257

Physics
tan(theta)=0.800/0.625

English
Hello If you had a topic "Murphy s law" and you had to work on it in the classroom for 90 minutes, what would you do? I have a text on Murphy s law, I thought to teach the children time clauses. My idea: work on the text for 45 minutes and then introduce time clauses...

algebra
Simplify: 53 x 56

chemistry
a certain paint has a density of 0.914 g/mL. you need to cover a wall that is 7.6 meters long and 2.74 meters wide with a layer of paint that is 0.13 mm thick. what volume of pain (in liters and gallons)is required? what is the mass (in grams and pounds) of paint layer?

math
Find a common denominator: 5/8 + 5/6 = 15/24 + 20/24 = 35/24

English
Hello Can you please come up with a few questions on the following topic: my free time I need to have a few questions which I would answer and in that way write my essay. But I am totally out of ideas :/

business
I need help Describing the organizational structure for Walmart.

English - Native speakers
Hello I have a question concerning the following sentence: Teachers are these days very patient and give more information and they explain it better. Can we say explain them better also? Which one is correct?

English
I put the wrong subject sorry. Needed it in German. I'll try to find something. Thank you :)

English
Can you give me a good topic for 30 minute discussion in German language? I just want to warn you that the class is pretty lazy, unmotivated, always sleepy and uninterested. They are 18 and 19 years old and are learning German for 9 years as a foreign language, but their level...

Statistics-Probability
P(6)=(8)^6/6!e-8

Statistics-Probability
P(6)=(8)^6/6!e-8

University of Phoenix
I need to evaluate the planning function of management as it relates to the organization's goals and strategies. I need to use the steps in the planning process. I do not know where to begin The class in MGT/230

Word 2007-pages
Hello Does anyone know how to number the first 4 pages in a word document (2007) with roman numbers and then start from the fifth page with the number 1?

chemistry
I got C_4 H_3 O_8 for this question but I'd like someone to check my answer, please. A 1.012 g sample of a compound containing C, H, and O was burned to produce 2.145 g CO2 and 0.3293 g H2O. Calculate the empirical formula of the compound

chemistry
Is this correct? A 0.1471 g sample of a compound containing C, H, and F was burned to produce 0.1960 g CO2 and 0.08024 g H2O. If the molar mass of the compound was determined to be approximately 66.05 g/mol, what is its molecular formula? My answer is: C_12 H O_20

Chemistry
A 0.5595 g sample of a compound containing C, H, and O was burned to produce 1.429 g CO2 and 0.5850 g H2O. If the molar mass of the compound was determined to be approximately 86.13 g/mol, what is its molecular formula?

chemistry
I ended up with C_2.809 H_2.106 O_1 so would that be C_3 H_2 O?

chemistry
I need help with this problem... A 1.208 g sample of a compound containing C, H, and O was burned to produce 2.561 g CO2 and 0.3930 g H2O. Calculate the empirical formula of the compound. I always get stuck when it comes to finding the subscript for this compound.

Chemistry
A 0.5595 g sample of a compound containing C, H, and O was burned to produce 1.429 g CO2 and 0.5850 g H2O. If the molar mass of the compound was determined to be approximately 86.13 g/mol, what is its molecular formula?

Math
john's columm covered the first 12 miles in 4 hours. he then increased the speed by 2 miles per hour. if the total distance of the trip was 52 miles, how long did it take to finish the trip

Algebra 1
2(8+4c)=32

math
i need help because i have to get to bed i hae work at 3:00 in the morning i need to help my lil bro with these questions please

math
helping lil bro with homework and he forgot to bring his books home and I cant remember anything 1. The word “risk” is used often in insurance discussions. Assume you have an apartment and how likely you are to buy Renter’s Insurance? 2. When you buy auto insura...

BIO
Organisms that live in environments and are hypotonic have cell membranes that differ in permeability from those that live in isotonic environments. What water regulation adaptations might have evolved to allow these organisms to survive in different environments such as the G...

statistics
Do you think there is a correlation between CEO salaries and the degree of success of a company? If you were to take a sample of companies with comparable size, market capitalization, and product category, and plot CEO salaries against the net profit of their respective compan...

Statistics
6. If we reject H0:µ = 10 in favor of Ha:µ 10 at a given level of significance with a positive value of the test statistic z, then if we test H0:µ = 10 versus Ha:µ > 10 using the same sample, Ha:µ > 10 will ______ be rejected at the same sig...

English - Native speakers
Need a help from a native speaker of English. Can you fill in this text by using either Past Simple, Past Continuous or Past Perfect? You would really help a lot. Thank you When Craig Myers ____bought______(buy) his restaurant, he got it for a very good price because it ____ha...

English - Native speakers
but i have the answers. :) Can you check them? bought, had been, wanted, was, was driving, didn't believe, had bought, called, was, was, tidied, was singing, went, checked, were, didn't feel, locked, started, fell, were sitting

English - Native speakers
Need a help from a native speaker of English. Can you fill in this text by using either Past Simple, Past Continuous or Past Perfect? You would really help a lot. Thank you When Craig Myers __________(buy) his restaurant, he got it for a very good price because it _________(be...

physics
A 69 kg person on skis is going down a hill sloped at 36° below the horizontal (+x direction). The coefficient of friction between the skis and the snow is 0.15. Find the x and y components of the weight of the skier going downhill.

biology
6) If the DNA sequence is GTAC, what will be the mRNA sequence? a) CATG b) CTUT c) CAUG d) UCGG 7) Given the codon UGC, what will be its anticodon? a) ACG b) TCG c) TGC d) AAT

Physics
Trailing by two points, and with only 1.00 s remaining in a basketball game, a player makes a jump-shot at an angle of 35.0o with the horizontal, giving the ball a velocity of 8.50 m/s. The ball is released 0.25 m below the height of the basket, which is 3.05 m above the floor...

Human Resource
Compare and contrast the following methods of job evaluation and include examples that are not the same as in the textbook to demonstrate understanding: Lott, Benge, and Multiple Regression. Identify the key differences.

English-tenses
thank you :) much clearer now ;)

English-tenses
Hello I have key answers for the following tasks but I would like a native speaker to explain to me the uses of tenses here.The students have to put past tenses here. I am especially confused with the sentence beginning with The vases, which.... isn't it a rule when we see...

statistic
based on 125 flights, 76% arrive on time. whats the probability that 80 flights arrive on time, probability that 20 or less flights are late?

math
Determine the least possible value for B to the nearest tenth if A = 30°, a = 5, and b = 8.

managerial economics
Recently one of the nation’s largest consumer electronics retailers began a nationwide television advertising campaign kicking off its “Take It Home Today” program, which is designed to encourage electronics consumers to buy today rather than continue postponing...

managerial economics
draw a game tree when sony makes its technology decision first.does sony experience a first-mover advantage

Trig
Thanks. Makes sense. My problem was I was trying to use another double argument property.

Trig
Solve the equation in the given domain cos 4x + cos 2x = 0, 0<(or equal to) x < pi

physics
A bullet of mass 4.7 g is fired horizontally into a 2.4 kg wooden block at rest on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.28. The bullet stops in the block, which slides straight ahead for 2.2 m (without rotation). (a) What is ...

Science
A 110.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 35.0 deg with the horizontal. Find the magnitude of the applied force F.

Science
A lamp is suspended by a massless string from the ceiling of a descending elevator which decelerates at 1.6 m/s2. If the tension in the string is 82.0 N, what is the mass of the lamp?

Chemistry
The Ka of a monoprotic weak acid is 2.04 × 10-3. What is the percent ionization of a 0.181 M solution of this acid?

physics
The bead is accelerating on the horizontal plane in a circle with radius r=RsinB. This is derived from the angle that the bead makes with the vertical. Once you have the radius of the particles trajectory you need to find the forces acting on it. The two forces acting on the b...

Physics
A mortar shell is launched with a velocity of 100m/s at an angle of 30 degree above the horizontal from a point on a cliff 50m above a level plain below. How far from the base of the cliff does the mortar shell strike the ground?

statistic
A survey was made of 100 customers in a department store. 70 of the customers indicated they visited the store because of a newspaper advertisement. The remainder had not seen the ad. A total of 40 customers made purchases; of these customers, 30 had seen the ad. What is the p...

statistic
Wendy is a randomly chosen member of a large female population, in which 13% are pregnant. Wendy tests positive in a pregnancy test. Pregnancy test correctly identifies pregnancy 91% of the time and correctly identifies non pregnancy 95% of the time. What is the probability th...

physics
pt A: Fp - Ff. in this case, you would do 30.51 - 17.13 = 13.38

Chemistry
What are the concentrations of OH– and H in a 0.00070 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation.

calculus
f(x)= e^-3x g(x)=x+x^2 calculate the following derivative (d/dx)f(g(x))=?

calculus
let y=(x+sin(x))^2 f(x)=? g(x)=? (f o g)'=? compute the derivative using the chain rule

Calculus
Given the following functions: F(u)= u^(5/2) and g(x)= x^6+1, find-f(g(x))=?, f'(u)=?, f'(g(x))=?, g'(x)=?,(f o g)'(x)=?

College Algebra
8,9), x + 2y = 7 please solve this for me

english
Okay so there is a non profit organization called Heifer. This group sends animals to 3rd world countries. It teaches people to raise animals on their own for food. One stipulation to receiving the animal is you have to give two of it's offspring to another family so they ...

math
simplify the following by adding like terms -4-6m+10n-56-n+9m

Math
Can someone please help me figure out the mean, standard deviation, raw score, and z-score of 27,3,4,16,0.. Any help is super appriciated.. thanks sooo much.

physics
a 2.00 m tall basketball player is standing on the floor 10 m from the basket. if she shoots the ball at a 40 degree angle with the horizontal at what initial speed mjust he throw the basketball so that it goes through the hoop without striking the backboard? the height of th...

Pyschology
When a result is significant, explain why it is wrong to say the result “proves” the research hypothesis. PLEASE HELP

Statistics
Please help me. I am working a paper that needs a verbal statment and a numerical statement. My hypthoesis is The use of social media Facebook is associated with an increase among couples.. if anyone can help that would be great. Thanks so much.

Science NEED HELP NOW
Hate the metric system

physics
sarah ride her bike at an average spped of 6m/s. how long does it take her to ride 6km (6,000 m)?

Chemistry
What is the empirical formula of a hydrocarbon that contains 89.94% C by mass?

Chemistry
What is the empirical formula of a hydrocarbon that contains 89.94% C by mass?

physics
Bob has a helicopter and from the launch pad he flies the following path. First he travels from the launch pad a distance of 33 kilometers at heading 10 degrees West of North. Then he flies 18 kilometers heading 45 degrees East of South. After this he flies 14 kilometers headi...

science
what is the dependent and independant variable, force or pressure?

Math
a bag contains 3 red marbles, 5 blue marbles, 2 yellow marbles, and 2 lavender marbles. How many sets of 4 marbles includes at most one of the yellow marbles?

Math
Thank you Ms. Sue

Math
Jane has only $1 and $5 in her wallet, and they total $79.00. If she has a total of 23 bills, how many of each bill does she have?

math
How many sheets of plywood would it take to sheath a roof that covered a building 74' wide,248' long and has a roof pitch of 4" in 12"?

construction
How many square yards would it take to cover a ball that had a radius of 3'?

construction
A swimming pool is 120' long,45' wide and 10' deep.How long would it take to fill with water if your maximum fill rate was 15 gallons per minute?

health
need help in orthopedic physician assistant exam

science
in which of the following materials is the velocity of light greatest

Easy Pre-calculus Questions?
8.48 feet

English-Native speakers
This is a sentence in active and I have to write it in passive. My solution is: He was expected to bring the drinks or the drinks were expected to be brought which one is correct?

English-Native speakers
What is the passive of the following sentence? We expected him to bring the drinks

English - Native speakers
so the sentence he hoped they would all get what they wanted is not correct? There is no back shift of tenses?

English - Native speakers
oh no :) I thought how do we write it in reported speech?

English - Native speakers
"I hope you'll all get what you want" How does it sound in reported speech?

English - Native speakers
Is it better to use a little or little in the following example? If you have__________ time could you come and help me do my homework

English - Native speakers
can we use here a lot of hope?

English - Native speakers
Can we say : Scientist have a little hope of finding a cure for cancer or little hope.Can we say both? A little means positive and little negative

English-Native speakers
Is a producer synonym for a director?

English vocabulary
Is the synonym for: to have a leading role=to star

English Passive
Can you put this sentence in passive Her mother is teaching her French

English Passive
Can we say in passive: The bad news were or was given? The same with cast has been chosen or have been chosen?

English question tags
Why is the following sentence correct: Nobody is indispensable, is he? Why he? Which question tag can we use here?

English-Native speakers
Why do we use definite article in the sentence: I went to the airport at 8 o'clock. when this airport is mentioned for the first time?

English third conditional
Hello! For example we have a sentence If you________ (not/be) late, we____________(not/miss) the bus. Is it correct to say If you hadn't been late, we wouldn't have missed the bus? Can we write would have not missed? This is wrong right?

General Chem
What do you call a solution that is maid by mixing solid Na2S2O3 5H20 with NaOH? Also, what is the complete balanced equation for mixing the above solution with an aqueous solution of NaClO? Thanks anyone!

math
my tens digit is 5 more than my ones digit and 2 less than my hundreds digit.if the sum of my digit is 18.what number am i?

English - Native speakers
One question: The rule says the we use the definite article with ordinal numbers.I have just seen the example saying "a second letter". Is there some rule when to use it and when not to?

English - Native speakers
Hello! I know articles are really complicated in English language but what is the easiest way to explain the usage of definite, indefinite and zero article?

English - tenses
Thank you both :)

English - tenses
About that May-I agree with both of you. But this sentence about the manager is supposed to be filled with either will arrive soon or is arriving soon (I would fill it in with will arrive but the correct answer is is arriving soon (I accidentally involved going to future in th...

English - tenses
Ok to conclude: Is when in the first sentence synonym for after? If it is then I am clear about the past perfect How would you as a native speaker (I guess :)) explain to me when to use Simple Future and when Going to future?

English - tenses
Yes, I would also use past continuous. One more question. Is it correct that we use Going to Future when we are more sure that something is going to happen and Simple Future when something is not so sure and things can change? If this is correct why is this sentence correct: T...

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