Friday
September 4, 2015

Posts by John


Total # Posts: 6,780

English
I did not see a nonessential clause, so I didn't think it could be A
May 26, 2015

English
i think D because there's no comma after stating.
May 26, 2015

English
Their professor, who was known for his imposing demeanor, looked around the classroom before stating. "Each of you students are responsible for arriving to class on time" Which of the following language conventions is violated in the sentence above? a.Punctuation for...
May 26, 2015

english
Thank you, and yes there's supposed to be a period at the end.
May 26, 2015

english
Which of the following sentence correctly follows the rules of punctuation and capitalization? There are two main sources of water pollution: Sewers and factories There are two main sources of water pollution: sewers and factories There are two main sources of water pollution...
May 26, 2015

Chemistry
You are given 75mL of 1mol/L NaOH and 75 mL of 1mol/L HNO3 at atmospheric pressure. After mixing the two compounds, he measured a rise in temperature from 25°C to 32°C. Find the change in energy of the system in kJ/mol. (Known: Density of aqueous solution is 1.00g/mL ...
May 26, 2015

Biology
How a radioactive element will decay over time?
May 25, 2015

Chem
I still am lost on how to find OH- Kw being 1 x10^-14 could leave any possibility for H
May 20, 2015

Chem
Mostly the H+ is what is confusing me
May 20, 2015

Chem
Compute values for [H] [OH] and pH of the following aqueous solutions. Tabulate the answers for comparison. Spell out the reasoning in each calculation a) 0.010M HCL b)0.0010M NaOH c) 0.010 N Ba(OH)2 (strong electrolytes assumed to be 100% dissociated.
May 20, 2015

pre-algebra
55=8-6t+3+2t
May 19, 2015

Math
A spherical water balloon has a diameter of 10 cm. How much water is needed to fill the balloon, in cubic centimeters? Round your answer to the nearest centimeter. (Use 3.14 for π.)
May 19, 2015

L A
2 is right
May 18, 2015

education
Have you changed in regards to how you work with children?
May 18, 2015

Calculus
Please check my answers. Solve the following equations and/or system of equations for the unknown variables. 1. x^2-3x-12=0 x= 3 + sqrt(57) / 2, x= 3 - sqrt(57) / 2 2. x+y=8 , 3x+2y=2 x=-14, y=22 3. 3x + 2y =10 , x+y=5 , y+z =9 x=0,y=5, z=4 4. 1/x-p1z=0, 1-p2z=0, I-p1x-p2y=0 ...
May 18, 2015

education
Has your understanding of young children changed as a result of your practicum experience? Explain. can anyone explain what this question is asking for?
May 18, 2015

Physics
See I having trouble with this question because I could just used - GM1M2/R but this is respect to Earth. So I have no idea how to set this up.
May 14, 2015

Physics
A satellite of the Earth has a mass of 1550 kg. It orbits Earth with a mean radius of orbit of 7.00 x 10^6 m. a) What is the gravitational potential energy of the satellite with respect to Earth?
May 14, 2015

science please help
after the dna strands are separated, which of the following is the next step of DNA replication in the S phase of the cell cycle? Action of helicase formantion of RNa primer breaking go hydrogen bonds joining of nucleotides i think either B or D
May 13, 2015

science please help
in evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following observations provides the most convincing support for hypothesis? a) there are more types of RNA than there are DNA b) RNA contains combined catalytic, structural, and genetic ...
May 13, 2015

science please help
after the DNA strands are separated, which of the following is the next step of DNA replication in the S phase of the cell cycle? A) Action of helicase B) formation of RNA primer C) Breaking of hydrogen bonds D) joining of nucleotides i think it is either B or D
May 13, 2015

science please help
therefore it would be B since mitochondria deals with atp right??
May 13, 2015

science please help
i was debating between B and A. but I am a little more on B
May 13, 2015

science please help
Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion? a. inefficient protein production b. insufficient mitochondrial function c. impaired urea elimination d. absence of oxygen transporters on the cell ...
May 13, 2015

science @elena please help
it has been hypothesized that chloroplasts originated from photosynthetic cyanobacteria that became symbiotic inside a host cell. Which of the following observations provides the strongest evidence for this suggestion? A) microscopically, chloroplast appear similar to ...
May 13, 2015

math
30 - 24 = 6 students were absent, therefore 6 (who were absent) divided by 30 (the total number of students) which becomes 0.2 but you should multiply by 100 in order to get percentage. Therefore, 0.2 x 100 = 20%
May 13, 2015

grade 5 math
In order to figure out percentage you should know which numbers are dividing by each number. Based on the question, 240/3000 = 0.08 However, when you want to get a "percentage" you should multiply by 100 which becomes 8%. Therefore 8% of teeth was lost.
May 13, 2015

Math
The questions doesn't provide sufficient information. I recommend you look over your question again.
May 13, 2015

Math
In order to figure out consecutive odd numbers you should know what numbers should be included. Odd numbers basically means the number that isn't multiples of 2 such as 1,3,5, and etc. Therefore 203,205,207 are the three numbers.
May 13, 2015

Physics
How much work is needed to move a -8.00 uC charge from the ground to a point whose potential is +75.0V ? I know -8.00 uc = -0.8 x 10^-6 then I used W = Fd but I can't seems to get right answer any hint is appreciated.
May 13, 2015

Physics
If a small planet were discovered whose orbital period was twice that of Earth, how many times farther from the Sun would this planet be? The answer for this one is 1.6 earth radii, but I can't seems to get solution to find the answer. I would appreciate for any hint or help.
May 12, 2015

Chemistry
It's half life - try looking in your book.
May 11, 2015

maths
simplify the square root of 20 minus the square root of 5 plus the square root of 45
May 10, 2015

Physics
Calculate the tension in the string if a single pulley of velocity ratio 5 is used to raise a body of mass 200g through a distance of 4cm.
May 9, 2015

LA
Anybody find out where we can get some additional resources on this topic?
May 7, 2015

Math
tan theta = 842/72.6
May 6, 2015

education
The children’s performance in relation your main objective listed on the activity plan what is this question asking. example please
May 3, 2015

Calculus max/min
d=0.767. There are two parallel sidewalks that are separated by the park that is 600 feet wide. You are standing on the south sidewalk facing east. On the north sidewalk, 2000 feet ahead of you, is a bus stop. You can walk on the sidewalk at 5.5+d feet per sec. You can walk ...
May 3, 2015

Education
What view do you have of the children's skills and competencies? In what ways do you need to transform your view of children to see them in a more positive light? what is this question asking for? example please.
May 3, 2015

math
thank you guys. I really appreciate the help.
May 2, 2015

math
can you answer it, mrs. sue?
May 2, 2015

math
yes
May 2, 2015

math
You were given 10 math problems for homework. You completed 310 of them at school. Which equation shows how to find the fraction of the problems you still must do to complete your homework?
May 2, 2015

Law & Ethics
yes, I too believe it is D. you answer that, Debbie!
May 2, 2015

math: 68-95-99.7 rule
suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000 use the rule to find the percentage of buyers who paid: between $150,000if the standard deviation is $1200
April 30, 2015

physics
A football kicker can give the ball an initial speed of 25m/s. What are the greatest and least elevation angles at which he can kick the ball to score a field goal from a point 50m in front of goalposts whose horizontal bar is 3.44m above the ground?
April 30, 2015

Calculus and Vectors
A plane is flying south east at a constant speed of 900km/h. The wind is blowing towards the north at 100km/h. Determine the resultant velocity of the plane relative to the ground.
April 29, 2015

chemistry
Table of enthalpy of solution for selected cesium salts Compound and ΔsolH kJ mol-1: - Cesium bromide: 25.98 - Cesium iodide: 33.35 - Cesium chloride: 17.78 - Cesium fluoride monohydrate: -10.46 - Cesium fluoride sesquihydrate (·1.5H2O): -5.44 Data taken from CRC ...
April 29, 2015

Math
By using the numbers 1, 1,1, 5 and 6 only once but need to use all and using any math get the number 51
April 28, 2015

Calculus I
Marketing tells you that if you set the price of an item at $10 then you will be unable to sell it, but that you can sell 500 items for each dollar below $10 that you set the price. Suppose your fixed costs total $3000, and your marginal cost is $2 per item. What is the most ...
April 28, 2015

Economics
A business can produce its product in different versions: Version A has a basic design and a lower cost and Version B has an upgraded design and a higher cost of production. The business knows there are different types of customers, “High” demand (H) and “Low&#...
April 28, 2015

physics
The figure above shows a chain being held on a table with one quarter of its length hanging over the edge. Friction is negligible. The chain has length L = 24 cm and mass m = 0.012 kg. Calculate how much work is required to pull the hanging section back onto the table.
April 25, 2015

physics
A 13 ohm, 35 ohm, and 2k ohmresistor are connected in a series circuit with a 190 V battery. What is the equivalent resistance of the circuit?
April 24, 2015

Calculus Indefinite Intergral
I need help with integrating these two problems. Im stuck. 1. integrate (sin^-1)dx/((1-x^2)^3/2) sin^-1 aka arcsin 2. integrate dx/((1-x^2)^3/2) by using 1/z Any and all help will be appreciated!
April 22, 2015

Chemistry HW Need answers
1.Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide would be produced if 90.0 g of glucose completely reacts with oxygen C6H12O6(s)+ 6O2(g) -> 6H2O(g) + 6CO2 (g) How many liters of carbon dioxide ...
April 22, 2015

Chemistry
Is the answer right 11.2
April 22, 2015

Chemistry
90/180.1559 =0.4995 0.4995*22.4 A. =11.2 Is this correct
April 22, 2015

Chemistry test can't fail please help (senior)
1.Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide would be produced if 90.0 g of glucose completely reacts with oxygen C6H12O6(s)+ 6O2(g) -> 6H2O(g) + 6CO2 (g) How many liters of carbon dioxide ...
April 22, 2015

Chemistry
1.Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide would be produced if 90.0 g of glucose completely reacts with oxygen C6H12O6(s)+ 6O2(g) -> 6H2O(g) + 6CO2 (g) How many liters of carbon dioxide ...
April 22, 2015

Chemistry
I don't know what to do once I get the .49999 number
April 22, 2015

Chemistry
Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide would be produced if 90.0 g of glucose completely reacts with oxygen C6H12O6(s)+ 6O2(g) -> 6H2O(g) + 6CO2 (g) How many liters of carbon dioxide would...
April 22, 2015

Chemistry test help please
How many liters of chlorine as can be produced when 1.96 L of HCl react with excess O2 at STP Show Work A.0.49L B.0.98L C.1.96L D.3.92L
April 22, 2015

Chemistry
Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide would be produced if 90.0 g of glucose completely reacts with oxygen C6H12O6(s)+ 6O2(g) -> 6H2O(g) + 6CO2 (g) How many liters of carbon dioxide would...
April 22, 2015

Chemistry
Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide would be produced if 90.0 g of glucose completely reacts with oxygen
April 22, 2015

biology
1.1 The gametophyte generation in a fern plant changes to the sporophyte generation by A.fertilisation B.melosis C.asexual reproduction D.fusion of spores the answer is A.fertilisation right? 1.2 the male cone differs from the female cone in the pine in that A.only the male ...
April 19, 2015

College Physics
This figure shows an overhead view of the path of a 0.187 kg ball as it bounces from a rail of a pool table. The ball’s initial speed is 2.19 m/s. The angle θ1 shown on the sketch is 30.0o. The bounce exactly reverses the y component of the ball’s velocity but ...
April 16, 2015

Chemistry
What volume (in mL) of 0.55 M Na2SO4 solution is needed to precipitate all the barium, as BaSO4(s), from 15.5 mL of 0.25 M Ba(NO3)2 solution?
April 16, 2015

math
find the length of an arc of a circle of radius 5.6 cm which subtends an angle of 60 degrees at the centre of the circle.(take pie as 22 divided by 7.)
April 15, 2015

math
i cant figure it out
April 13, 2015

math
How do i find the 12th term of the sequence 36,18,9.... using a formula
April 13, 2015

math
find the number of terms for the following sequence. 125,109,93,.......-115 i got the answer of 15 terms. How do i get it though using a formula?
April 13, 2015

math
find the missing terms for the following sequence geometric sequence 96,__,__,__,6
April 13, 2015

math
should it be a fraction?
April 13, 2015

math
find the 12th term of the sequence 36,18,9....
April 13, 2015

chemistry
How much heat is produced by the complete reaction of 5.91kg of nitromethane?
April 13, 2015

english
15. Identify the sentence in which the underlined pronoun is used incorrectly. There are only six days left in the school year. It will be fun to visit their house in the summer. Their just going to have to wait to see the movie. Greg refused to go there because of the bad ...
April 10, 2015

Calculus
The sun is setting at the rate of 1/4 deg/min, and appears to be dropping perpendicular to the horizon, as depicted in figure 6.2.5. How fast is the shadow of a 25 meter wall lengthening at the moment when the shadow is 50 meters long?
April 9, 2015

math
Five friends picked 7 pounds of apples. They will share the apples equally. How much will each get?
April 7, 2015

Physics
plastics are insulators
April 6, 2015

Help please
you caught his attention because you didn't follow instructions, not because it was someone to help. No wonder you are asking others to do homework for you
April 6, 2015

english
this is simple, in the sentence it says "Her screaming" so the answer is d because it was her screaming
April 6, 2015

chemistry
17. Calculate H for the following reaction using Hess law H2 (g) + Br2 (g) → 2 HBr (g) Experimental information 2 H+ → H2 H -436.4 kJ 2 Br- → Br2 H -192.5 kJ 2 H+ + 2 Br- →2 HBr H -144.8 kJ
April 2, 2015

self
I have 10 letters. My 1st and 2nd letter means not. My 1st to 5th letter means below. My 6th to 10th letter is to stand. In all, I am when you know. What am I?
April 2, 2015

Math
prime numbers could be 2, 3, 5, 7, 11, etc. What happens with 2, 3 which gives us 6? or with 5, 7 which gives us 35? Can you finish it from here?
March 30, 2015

Math
Change 3 3/4 to an improper fraction by multiplying 4 times 3 and adding it to the numerator 15/4 multiply by 6/1 multiply 6 times 15 and 1 times 4 Divide 90 by 4 to get your answer.
March 30, 2015

Math
If there are 6 numbers on the die, then you have 1/6 of getting the number 5. To get a blue it looks like you have 1/4. For both to happen together (indicated by using "and") then, multiply the two fractions to get your probability. You are correct with answer B.
March 30, 2015

phusics
a 50g bullet is shot from a rifle at 900m/s a) what is the KE of the bullet? b) how much work is done on the bullet if it starts from rest?
March 30, 2015

geometry
the tree is opposite the angle and the 50 feet is adjacent to the tree. opposite/adjacent = tangent x/50 = tan 48. Find tan 48 and multiple by 50 to find "x" which is the height of the tree.
March 30, 2015

math
75 pupils sat for a Science Test. The average score was 58 marks. If the average score of the girls was 62 marks and the average score of the boys was 56 marks, how many boys sat for the test?
March 27, 2015

Civics
Does the prefix "bi" give you a hint?
March 27, 2015

Math Help!!!
It looks like we are taking 1/2 of the previous number or dividing by two. Any time you are multiplying or dividing you have a geometric sequence. If you are adding or subtracting a constant, then you have an arithmetic sequence.
March 27, 2015

Ethics in Technology
I think it might be C. I don't think their salaries went up.
March 27, 2015

math
You will have a right triangle with the 80 meters on the hypotenuse and the x on the side opposite the 75 degree angle. Using Trig: x/80 which is opposite over hypotenuse equal to sin of 75 degrees. Find the sin of 75 and multiply it by 80 to find x.
March 27, 2015

Algebra 2
If you take the square root of 36x^2 you will get 6x. This is fine because you only have one term. But, if you take the square root of 36 - x^2, you can't take the square root of each part when you are adding or subtracting which causes you to have more than one term. The ...
March 27, 2015

Math
Jane will receive 18% less of her regular pay when she retires. Her regular pay is $500 per week. a How much would she receive per week if she retires today? answer: 500/18% = 90 500-90= $410 b. Explain how you can make this same calculation using 100%-18%=82% answer: same as ...
March 26, 2015

chemistry
which of the following molecules will exhibit hydrogen bonding? a. CH3OCH3 b. HF c. CH4 d. LiH
March 25, 2015

French
Please unscramble O É N C A R C S in French. It is a verb.
March 25, 2015

Physics
Water flows horizontally in a tapered pipe at a rate of 500 m^3/h. The area at one section of the pipe is 6500 mm² and 4000 mm² at another section. Calculate the gauge pressure at the larger section if the pressure at the smaller section is atmospheric.
March 23, 2015

History
. In __________ trials, the judge is both the trier of law and the trier of fact. A) de novo B) bench C) jury D) pro se I have a feeling it could be bench
March 22, 2015

math
Mary invested $3,750 for 42 months at a simple interest rate of 3.85%. How much interest did she earn?
March 18, 2015

  1. Pages:
  2. <<Prev
  3. 1
  4. 2
  5. 3
  6. 4
  7. 5
  8. 6
  9. 7
  10. 8
  11. 9
  12. 10
  13. 11
  14. 12
  15. 13
  16. 14
  17. 15
  18. Next>>

Members