Friday
August 22, 2014

Posts by PsyDAG


Total # Posts: 17,982

science
Since the sound has to travel in both directions: 340 * 5.2/2 = ?
November 7, 2013

statistics
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your previous post.
November 7, 2013

MATH
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. a) (1-.05)(1-.21) = ? b) .05(1-.21) = ? c) Follow same process. d) This is saying that either h or k will qualify. Either-or ...
November 7, 2013

Math
From your set of numbers, there is no mode or modal class. If the scores were grouped into intervals, one could be the modal class. The mean or median would be better to indicate average class sizes. Any of the measures of central tendency can be used, if the distribution is ...
November 7, 2013

spanish (Ooops!)
I'm sorry that I misinterpreted, since in los Estados Unidos, we us the period to indicate less that one. What you want is: quinientos treinta miles
November 6, 2013

spanish
quinientas treinta
November 6, 2013

statistic (?)
What is your question?
November 6, 2013

anatomy
Although eye shape can indicate oriental origin, I don't think that any of these are good indicators of race.
November 6, 2013

Science
I agree.
November 6, 2013

Science
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
November 6, 2013

Psychology
http://psychcentral.com/encyclopedia/2009/operational-definition/ In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
November 6, 2013

Science
Since this is not my area of expertise, I searched Google under the key words "gravitational force between two objects" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=gravitational+force+between+two+objects&ie=UTF-8&oe=UTF-8 In ...
November 5, 2013

Health part 2
Why are you posting these, when the answer is easily available in your text? This article only covers the cerebrum. http://drdavespsychologypage.homestead.com/Brain__General_Anatomy.pdf
November 5, 2013

Health part 2
Do you have a textbook to consult? Use it.
November 5, 2013

Health part 2
How can it be "All of the above" if that includes"Neither of the above"? Opposite of arteries.
November 5, 2013

science
Gravitational pull would pull it into the sun. The inertia of its orbit keeps this from happening
November 5, 2013

statistics
Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. Multiply by 100 to get the percentage.
November 5, 2013

science (?)
What is your choice? We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.
November 5, 2013

Math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 81 * 38 = 3078, which is the product. For 81, 3 * 3 * 3 * 3 are factors. However, 81 and 38 are also factors of 3078.
November 4, 2013

math
No data given.
November 4, 2013

Mathjc
x^3 = 27 3*3*3 = 27 x = 3
November 4, 2013

Statistics
P value (e.g., P ≤ .05) is the probability that the null hypothesis is true, even though it may be rejected at this level.
November 4, 2013

math (incomplete)
What is "¨ü "?
November 4, 2013

Statistics
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
November 3, 2013

Spanish
Nosotras is strictly feminine, while nosotros is masculine or can be used for mixed gender groups.
November 3, 2013

Physics needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
November 2, 2013

abnormal psychology
Since they also cover preventative strategies for disorders, the statement is false.
November 2, 2013

science
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your previous post.
November 2, 2013

Social Psychology
We cannot determine if you were tempted. However, these articles might help you. http://drdavespsychologypage.homestead.com/Influence_Antecedents.pdf http://drdavespsychologypage.homestead.com/Influence__More_Principles.pdf http://drdavespsychologypage.homestead.com/...
November 2, 2013

Math
From your data, with four tosses, you would get 3 tails and one head by chance. The probability of one head would then be 1/4. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
November 2, 2013

Math
This is the same as both are either red or green. red = (20-5-9)/20 green = 5/20 Either-or probabilities are found by adding the individual probabilities. This is for one choice. But you are looking fro two choices. If the events are independent, the probability of both/all ...
November 2, 2013

Math
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
November 1, 2013

Math
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
November 1, 2013

Math
Probability of a 4 is 1/6, while a probability of a non-4 = 5/6. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/6 * 5/6 * 5/6 = ?
November 1, 2013

science HELP
Since this is not my area of expertise, I searched Google under the key words "air pressure affect cloud formation" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=air+pressure+affect+cloud+formation&ie=UTF-8&oe=UTF-8 In the future...
November 1, 2013

Math
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
November 1, 2013

Math
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
November 1, 2013

Math
Agree.
November 1, 2013

algebra
distance = rate * time (50*4) < d < (65*4)
November 1, 2013

math (?)
What do the values stand for? Have no idea what you consider problems.
October 31, 2013

science please help
Since this is not my area of expertise, I searched Google under the key words "source uses radio waves" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=source+uses+radio+waves&ie=UTF-8&oe=UTF-8 Do the same for the other waves. In ...
October 30, 2013

Science (?)
It would help if you proofread your questions before you posted them. A current what?
October 30, 2013

Science 😆
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts
October 30, 2013

Math
From the way you have it written, I am assuming that the divisor is only for the second term (3/5). (1/2)+3/5 /[9/10-(-3/5)] = A minus times a minus = a plus. (1/2)+3/5 /[9/10+3/5)] = To make it easier, convert to decimals and combine the two denominator terms. .5 + .6/(.9+.6...
October 30, 2013

science
See previous post.
October 30, 2013

Science
I agree.
October 30, 2013

science
https://www.google.com/search?client=safari&rls=en&q=phases+of+the+moon&ie=UTF-8&oe=UTF-8
October 30, 2013

science
Although this is not my major area of expertise, I would agree.
October 30, 2013

Math
Assuming that the digits cannot be repeated, combinations of 3, 4, 5 or 4, 5, 6.
October 30, 2013

science
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
October 30, 2013

Math
(500 + 600)h = 1925 Solve for h.
October 29, 2013

math (?)
You need to Include the question again in your post.
October 29, 2013

Science
Since this is not my area of expertise, I searched Google under the key words "Acid base h+" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Acid+base+h%2B&ie=UTF-8&oe=UTF-8 In the future, you can find the information you desire ...
October 29, 2013

Math
When dividing by a fraction, it is the same as multiplying by the inverse of the fraction. 20 divided by 1/7 = 20 * 7/1 = 140 Check with the other problems.
October 29, 2013

algebra 2
Small = 30 - Large 249.99S + 329.99L = 8379.70 Substitute 30-L for S in second equation and solve for L. Insert that value into the first equation and solve for S. Check by inserting both values into the second equation.
October 29, 2013

algebra (?)
What is your question?
October 29, 2013

science
I assume that you mean the Earth's gravity. D
October 29, 2013

Math
Change to a decimal.
October 28, 2013

science
Is the difference due to the spraying or the different kind of berries or a combination? B
October 28, 2013

Statistics
Analyze per 1000 forms. 2($100) + 3($50) = ?
October 28, 2013

Psychology
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though. I'll give you a start though. c) Search the prison archives, if possible.
October 28, 2013

Finance needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
October 28, 2013

statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.05) related to a Z score. Insert the values into the equation below and solve for the score. Z = (score-mean)/SD
October 27, 2013

Science
Since this is not my area of expertise, I searched Google under the key words "path of digestion in humans" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=path+of+digestion+in+humans&ie=UTF-8&oe=UTF-8 In the future, you can find ...
October 27, 2013

English
1. Grammatical, but unlikely to occur. You cannot stop reading? 4. learn 5. "…spend more than 2 hours" doing what?
October 27, 2013

6th grade science
Since this is not my area of expertise, I searched Google under the key words "land water effect on wind" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=land+water+effect+on+wind&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
October 27, 2013

Science
density = mass/volume density = 335/(83.6-50) You want the volume of the object rather than the object and the water.
October 27, 2013

Probability (Partial)
a. Z = (score-mean)/SEm SEm = SD/√n SD = √variance Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. b. Z = (score-mean)/SD Use same table. c...
October 27, 2013

Science
1 kgm = 1000gm density = mass/volume density = (2.563 * 1000)/(6 * 9 * 20) = ?
October 27, 2013

statistics
(.44)^6 * (1-.44)^3 = ?
October 27, 2013

English
1. Before Cohen gives is (US) seven monster theses (COMMA) he points out (NO COMMA) that history is not the answer of (TO) all questions about monsters. That meanS (NO COMMA) that we often try to explain why the people tell each other about monsters and why that (UNCLEAR ...
October 27, 2013

math
You lose $2 each day. $24/$2 = ?
October 27, 2013

Geometry (?)
Without a diagram, we have no idea what the letters mean.
October 27, 2013

Statistics
Yes.
October 27, 2013

Statistics
.32 ± .017 = ?
October 27, 2013

math (?)
Repost your question using the space bar rather than the plus (+) sign.
October 27, 2013

Science
You have asked this question several times. It lived in the water, it died and was buried in sediment.
October 26, 2013

science
The law has been repeatedly and consistently supported by various forms of data and has never been contradicted.
October 26, 2013

z scores URGENT
Z = (score-mean)/SD
October 26, 2013

Mathhh
2x - y = 4 Subtract 4 and add y to both sides of the above equation. y = 2x -4 8x - 4y = 16 Substitute 2x-4 for y in last equation and solve for x. Insert that value into the first equation and solve for y. Check by inserting both values into the second equation.
October 25, 2013

Math
Multiply first equation by 3 and the second by 2. 6x - 12y = 9 -6x + 10y = 2 Add the two equations. -2y = 11 You should be able to work it from here.
October 25, 2013

math (?)
What table?
October 23, 2013

Biology 101
We will be glad to respond to your choices.
October 23, 2013

math
1 + (9*9) - 6 = 76 I don't know about 73 or 77.
October 23, 2013

Math
(1 - .18)x = 129000
October 23, 2013

math
1.28x = 3.40 Solve for x.
October 23, 2013

science
You need to know specifically what you want to find. What specific question(s) are you trying to answer?
October 23, 2013

science
Intense heat?
October 23, 2013

Algerbra
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Multiply the base values and add the exponents. (5.1*10^3) * (3.2*10^3) = 16.32*10^6 Use the same process for the remaining problems.
October 23, 2013

Math
V = π r^2 h d = 2r V = π (d/2)^2 h Solve for h.
October 23, 2013

biology
The primary difference between organic compounds and inorganic compounds is that organic compounds always contain carbon while most inorganic compounds do not contain carbon. Also, almost all organic compounds contain carbon-hydrogen or C-H bonds.
October 23, 2013

Math - Urgent
Add 2/9b and 7 to both sides. 10 = 2/9b + 1/3b = 2/9b + 3/9b = 5/9b Multiply both sides by 9/5.
October 22, 2013

Math (?)
What is your question?
October 22, 2013

math (?)
It would help if you proofread your questions before you posted them. Data is missing.
October 22, 2013

math
2W + 2L = 360 Put in one value for either W or L, then calculate the other value. We cannot draw on these posts.
October 22, 2013

math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. (7*900) + (7*80) + (7*7) = 6300 + 560 + 49 = (Expanded) 6000 + 300 + 500 + 60 + 40 + 9 = ? It doesn't match either of your choices. Are there other choices available?
October 22, 2013

algebra 2 honors
1. x = (4+5y)/4 -6 = 3x - 6y Substitute (4+5y)/4 for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation. 2. Is there a typo in this part? Correct and use similar process.
October 22, 2013

Number Sense
Change both 5/12 and 6/13 into decimals to find out.
October 22, 2013

algebra 2 honors
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
October 22, 2013

math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Anything to the zero power = 1. 6^-2 would be less than one.
October 22, 2013

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