Friday
August 29, 2014

Posts by David


Total # Posts: 1,638

math
Let P(F)= X since E and F are independent eveents, P(EnF)= P(E)* P(F) therefore, P(EnF)= 0.2X but P(EuF)=P(E)+ P(F)- P(EnF) 0.3= 0.2 + x - 0.2x x = 1/8
July 27, 2010

Excel
What is the formula to figure out these two problems?
July 25, 2010

math
Corrine has 3 quarters, 7 dimes, 6 nickels, and 4 pennies in her pocket. If one coin falls out, what is the probability that it will not be worth more than $0.10? 3/20 7/20 1/2 17/20
July 22, 2010

Probability
If you toss 4 coins, what is the probability of getting exactly 1 head and 3 tails? 1/16 1/4 3/8 1/2
July 22, 2010

physics
boat is m1 = 300 kg Isaac is m2 = 62 kg towards dock is + away from dock is - original velocity of both is v = +0.50 m/s v2' = final velocity of Isaac v1' = final velocity of boat v2'-v1' = +3.0 m/s (because Isaac jumps off the front of the boat & is moving ...
July 21, 2010

physics
boat is m1 = 300 kg Isaac is m2 = 62 kg towards dock is + away from dock is - original velocity of both is v = +0.50 m/s v2' = final velocity of Isaac v1' = final velocity of boat v2'-v1' = +3.0 m/s (because Isaac jumps off the front of the boat & is moving ...
July 21, 2010

9gr
Caleb scored the following on his first four tests: 78, 84, 88, and 82. What is the least grade he can receive on his next test to have an average of 85 for the five tests? a.66 b.83 c.93 d.100
July 19, 2010

Pythagorean Theorem
Which is closest to the length of the diagonal of a square whose sides measure 20 cm? a.20 cm b.28 cm c.40 cm d.200 cm
July 15, 2010

Pythagorean Theorem
NOP
July 15, 2010

Pythagorean Theorem
Pythagorean Theorem - david, Thursday, July 15, 2010 at 2:10pm EFG 3,6,9 HIJ 60,156,144 KLM 56,102,105 NOP 36,48,64 The following are the lengths of the sides of four triangles. Which is a right triangle? a.Triangle EFG b.Triangle HIJ c.Triangle KLM d.Triangle NOP
July 15, 2010

Pythagorean Theorem
EFG 3,6,9 HIJ 60,156,144 KLM 56,102,105 NOP 36,48,64 The following are the lengths of the sides of four triangles. (See assignment sheet for chart). Which is a right triangle? a.Triangle EFG b.Triangle HIJ c.Triangle KLM d.Triangle NOP
July 15, 2010

Pythagorean Theorem
7. The following are the lengths of the sides of four triangles. Which is a right triangle? Triangle EFG Triangle HIJ Triangle KLM
July 15, 2010

Pythagorean Theorem
28 cm
July 15, 2010

Pythagorean Theorem
Which is closest to the length of the diagonal of a square whose sides measure 20 cm?
July 15, 2010

Pythagorean Theorem
24 ft
July 15, 2010

Pythagorean Theorem
A ladder resting against the side of a building reaches 32 ft up the building. If the ladder is 40 ft long, how far from the building is the base of the ladder?
July 15, 2010

9th grade
The lengths of 2 legs of a right triangle are 16 cm and 30 cm. What is the length of the hypotenuse?
July 15, 2010

Chemistry
molarity is .1 for all substances, volume of HCl and HC2H3O2 is 8.00ml each, both diluted in 100ml of water
July 14, 2010

algebra
solve by square root property (8x-3)squared=5
July 10, 2010

college chemistry
calculate the pressure exerted by 1.00 moles of CO2 confined in a volume of 5.00 L at 450. K. Compare the pressure with that predicted by the ideal gas equation.
July 8, 2010

college chemistry
so the answer would be18.5 atm using the formula p= nRt/V correct?
July 8, 2010

college chemistry
calculate the pressure exerted by 2.50 moles of CO2 confined in a volume of 5.00 L at 450K. Compare the pressure with that predicted by the ideal gas equation.
July 8, 2010

math
Find the derivative of the function. y = (x^2+8x+3)/square root of x
July 4, 2010

intermediate algebra
3(5-7)^8 divide 4
June 30, 2010

chemistry
Thank you
June 18, 2010

chemistry
If 20 mL of 0.10 M NaOH are added to 30 mL of 0.20 M HOAc, what is the pH of the resulting solution? (Ka = 1.8 ´ 10-5 for HOAc.)
June 18, 2010

Comm/215
Q: To succeed in the new economy, workers will have to learn throughout their careers, adapt to changing circumstances, and self-motivation will be needed. Parallel Constructtion A: and self-motivate when needed. is this correct?
June 17, 2010

Comm/215
Q: Some students hate math, some students dislike math, and math is liked by other students. Parallel Construction A: Some students hate math, some dislike math, and some like math. Is this correct?
June 17, 2010

Comm/215
Have you ever read the story, "The Tell-Tale Heart," by Edgar Allan Poe? Dave asked. Have I written this correctly?
June 17, 2010

Comm/215
Did the professor say “Put down your pencils?” Janice asked. I wrote this is it correct?
June 17, 2010

Comm/215
Q: People know they are going to have to retire. They often don't save enough money to do so comfortably. Have to make one subordinate. Peaople know they are going to have to retire, often they don't save enough money to do so comfortably. Is this right?
June 17, 2010

Comm/215
Q: The hurricane destroyed some oil rigs. Fuel prices rose. How do I make one subordinate to the other. The hurricane destroyed some oil rigs, and fuel prices rose. Is this correct?
June 17, 2010

Comm/215
Q: One of my friends want to attend my graduation ceremony. I hae to make subject and verb agree, should I change want to wants?
June 17, 2010

Comm/215
Some test are so hard that no one does well on them. Other test are too easy and don't really test comprehension. Is this right?
June 17, 2010

Comm/215
Q: Some tests are so hard that no one does well on them other tests are too easy and don't really test comprehension. A: Some tests are are so hard that no one does well on them, other test are too easy and don't really test comprehension. Is this correct?
June 17, 2010

Comm/215
Studying is hard work; many students find they study better when they take regular breaks. Is this right?
June 17, 2010

Comm/215
Q: Studying is hard work many students find they study better when they take regular breaks. A: Studying is hard work, many students find they study better when they take regular breaks. Is this correct?
June 17, 2010

Comm/215
So I need to write The White Sox are a really good at the fundamentals of baseball, which is why they won the World Series in 2005.
June 17, 2010

Comm/215
Q: The White Sox are really good at the fundamentals of baseball. Which is why they won the World Series in 2005. A: The White Sox are really good at the fundamentals of baseball; which is why they won the World Series in 2005. Is this correct?
June 17, 2010

Comm/215
There are two reasons why I like baseball; it is fun and good exercise. Is that what you mean?
June 17, 2010

Comm/215
Q: There are two reasons why. I like baseball. It is fun. And good exercise. A: There are two reasons why I like baseball, it is fun and good exercise. Is this correct?
June 17, 2010

Comm/215
Many times people will ask a writer where ____ gets ____ ideas. __ they /their __ he / his __ she /her __ he or she /his or her he or she / his or her correct?
June 17, 2010

Comm/215
A venture capitalist has to be willing to take risks when ___ invests ___ money. __ they /their __ he / his __ she /her __ he or she /his or her Answer he or she / his or her Correct?
June 17, 2010

Comm/215
Some interviewers ____ have a clear sense of what they want in an employee, ask very tough questions. __ who __, who __ which __ that , who is correct?
June 17, 2010

Comm/215
I had hoped the police would blame Bruce, not ___. __ me __ myself __ mineself __I Would me be the correct answer?
June 17, 2010

Comm/215
Investing in pure research ___ yields no immediate profit, can be hard to justify when a company is in financial difficulties. __ who __ which __ , which __ that , which is would be correct?
June 17, 2010

Comm/215
In retrospect, Jason shouldn't have taken that important business call right after he had been___. __ awake __ awaked __ awakened __ awaken The answer is awakened, correct?
June 17, 2010

Comm/215
Thats what I was thinking bad question. Thank you.
June 17, 2010

Comm/215
That is why I thought it was became, I can only pick become becomed became had became I thought had become but I do not have that option.
June 17, 2010

Comm/215
I was surprised by how successful Janice ____. had became or became? They both sound correct.
June 17, 2010

comm/215
There are two reasons why I like baseball. It is fun and good exercise. How does this look?
June 17, 2010

comm/215
Would this be a Ambiguous reference?
June 17, 2010

Comm/215
The company president inspired his employees, charmed the press, and redefined his company's strategic plan. This is parallel, correct? inspired, charmed, redefined
June 17, 2010

Comm/215
Will paint should be paints.
June 17, 2010

Comm/215
The clown juggles, makes balloon animals, and will paint faces. I think this sentence is parallel, am I correct?
June 17, 2010

Comm/215
Dave hoped that HE and Steve would win the tennis tournament. Would HE be correct?
June 17, 2010

Comm/215
I think this is a Ambiguous reference, would I be correct When one buys insurance, you need to be clear about your needs.
June 17, 2010

Comm/215
So this would be a Ambiguous reference.
June 17, 2010

Comm/215
In this sentence there is no pronoun error, correct? Sarah told Janice that she made the honor role.
June 17, 2010

Comm/215
I am trying to understand these pronouns. The sentence below is a number shift, corret? The teacher said they were going to grade the test over the weekend.
June 17, 2010

Comm/215
Thank you, do you have a pronoun link? I have to decide if sentences have these Pronoun shift in number Pronoun shift in person Ambiguous reference
June 17, 2010

Comm/215
Thank you, this stuff is very confusing to me.
June 17, 2010

Comm/215
Run-on sentence
June 17, 2010

Comm/215
I like chocolate she likes butterscotch. __ Sentence fragment __ Comma splice __ Run-on sentence __ Complete sentence (contains no error)
June 17, 2010

Comm/215
Thank you, do you have a pronoun link? I have to decide if sentences have these Pronoun shift in number Pronoun shift in person Ambiguous reference
June 17, 2010

Comm/215
Sorry I had already posted he answer before you posted the link for me. It is a complete sentence, correct?
June 17, 2010

Comm/215
Complete sentence
June 17, 2010

Comm/215
Comma Splice
June 17, 2010

Comm/215
While I like bacon, it is not good for me. __ Sentence fragment __ Comma splice __ Run-on sentence __ Complete sentence (contains no error)
June 17, 2010

Comm/215
Comma Splice
June 17, 2010

Comm/215
Complete sentence
June 17, 2010

Comm/215
I don't know what you want me to do, the directions are not clear. __ Sentence fragment __ Comma splice __ Run-on sentence __ Complete sentence (contains no error)
June 17, 2010

Comm/215
I guess it is a complete sentence then?
June 17, 2010

Comm/215
Comma splice
June 17, 2010

Comm/215
Cats, unlike dogs, are fond of sitting on laps. __ Sentence fragment __ Comma splice __ Run-on sentence __ Complete sentence (contains no error)
June 17, 2010

Comm/215
Is this a fragment? Using a flashlight, he looked under the bed for his shoes.
June 17, 2010

Comm/215
Is this a fragment? The local baseball team, needing a good pitcher most of all.
June 17, 2010

Comm/215
Is this a fragment? That movie, one of my favorites.
June 17, 2010

CAPITALIZATION
after several winter storms, jeff couldn't wait for the weather to improve.
June 14, 2010

Math
cot (theta)=-9/8, cos (theta)<0
June 14, 2010

Math
Thanks
June 14, 2010

Math
I need help with these problems for a test. 1. Find the inverse of the one-to-one function. f(x)=5x+1/4. 2. The height of the water, H, in feet, at a boat dock t hours after 7 am is given by E=7+4.4cos pi/35 t, where t is time measured in seconds. Find the period. 3. Solve ...
June 14, 2010

Math
#3 solve on the interval [0,2pi]
June 13, 2010

Math
I need help with these problems for a test. 1. Find the inverse of the one-to-one function. f(x)=5x+1/4. 2. The height of the water, H, in feet, at a boat dock t hours after 7 am is given by E=7+4.4cos pi/35 t, where t is time measured in seconds. Find the period. 3. Solve the...
June 13, 2010

statistics
10 soldiers of 500 attempt to climb a 100Ft cliff, they fail in : 57 ft, 73, 81, 78,63,85,41,68,75,88. What is probability of soldiers successfully climbing the cliff?
June 12, 2010

bus210
• Via Microsoft Word, write 700 to 1,050 words explaining the business model of University of Phoenix and also write a SWOT analysis about University of Phoenix strengths, weaknesses, opportunities, and threats.
May 30, 2010

Logic and Design
Hi, I need help with my program and logic Homework. Here is the problem: Velma and her husband Victor run a full service veterinary clinic. They would like a program to help them calculate costs for their clients. Victor, who is the vet, charges a flat fee of $100 for medical ...
May 24, 2010

Chemistry
Determine whether a solid forms when solutions containing the following salts are mixed. (Express your answer as a chemical equation. Identify all of the phases in your answer) NaF and AgNo3 MnSO4 and Na2CO3
May 24, 2010

EDU
Need this answered in a few good sentences
May 21, 2010

6th Grade Social Studies
What factors affect the enviroment?
May 18, 2010

Physics
A scaffold of mass 60 kg and length 5.0 m is supported in a horizontal position by a vertical cable at each end.A painter of mass 80 kg stands at a point 1.5 m from one end. (a)Find the tension in the cable nearer to the painter. (b)Calculate the tension in the second cable
May 17, 2010

Statistics
#1- The normal distribution had a mean of 14 and standard deviation of 4. There were 30 people in the study group and the average was expected to be 16. The study was tested at the .05 level of significance. What was the power of the study? 74.2% 80.5% 86.4% 92.7% #2- If a ...
May 14, 2010

Chemistry
2.24M
May 6, 2010

Math
I've been staring at this problem for an hour and have NO IDEA WHAT TO DO! "A quadratic function in the form f(x)=ax^2+bx+c contains the points (-1,0), (0,2), and (2,0)." a) determine the values of a,b, and, c b) Factorise the expression ax^2+bx+c obtained from ...
May 4, 2010

french
le samedi, je joue ou tennis avec mon per'e
May 4, 2010

Macroeconomics
Say you have a 15% inflation rate and a 10% unemployment rate, and inflation is "public enemy number 1", what fiscal and monetary policies could you use to defeat inlfation?
April 28, 2010

algebra
t=1.8125
April 28, 2010

math
78*43+1=3355
April 28, 2010

Chemistry
An aqueous solution of a compound with a very high molar mass was prepared in a concentration of 82.7 g·L-1 at 25 °C. Its osmotic pressure was 0.540 ·102 Pa. Calculate the molar mass of the compound. Cheers
April 28, 2010

Physical Science
dklkl rklfdkl ffkldks lflklkjklflkjfjkjkljlk ffjlkfldsldjfljkfdjdfl glfjk ljkgblkdlgjkblkdfljgl ghlkljk gdgljkskjlgdjljfljkdklg ljkgdljljkglk lfgfgfkl jgdkjlgfjklg kjllkjgfjkgjkfkfjlgggfgflfgjklfgljkflkjgflkjlgkkjllfkjlkjfl ...
April 27, 2010

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