Tuesday
September 16, 2014

Posts by PsyDAG


Total # Posts: 18,170

Math
7/8(20) = 17.5 1/4x = 17.5 Solve for x.
March 3, 2014

math
What is 1/2 as decimal or percent?
March 3, 2014

Math (?)
Possibly it might signify the volume of a cylinder. Cannot solve without equal sign for an equation. To simplify, multiply the terms.
March 3, 2014

Spanish
With my basic Spanish: How do you want the means of communication to be/function?
March 3, 2014

Chem needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
March 3, 2014

math
We cannot show visual models on the posts. Draw a diagram?
March 3, 2014

science HELP ASAP!!!!!!!
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.
March 3, 2014

Algebra
L = 2W + 3 2L + 2W = 72 Substitute 2W+3 for L in second equation and solve for W. Insert that value into the first equation and solve for L. Check by inserting both values into the second equation.
March 2, 2014

psychology
Agree
March 2, 2014

interpersonal communication
http://drdavespsychologypage.homestead.com/Relationships__Starting_and_Continuing.pdf
March 2, 2014

interpersonal communication
You cannot copy and paste here.
March 2, 2014

education (?)
What business plan? 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.
March 2, 2014

statistics
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. Percentile rank is the proportion below a particular score. OR… http://davidmlane.com/hyperstat/...
March 2, 2014

math
Mode = most frequently occurring score(s) Median = arrange in order of value, then find middle-most score. Mean = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of ...
March 2, 2014

Dividing decimals
Move decimal place one to the right for both and then proceed with normal long division.
March 2, 2014

Statistics (?)
Data missing.
March 1, 2014

Statistics
99% = mean ± 2.575 SEm SEm = SD/√n 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. To include each end, double proportion.
March 1, 2014

SAT prep help
-2x+5=2-5+2x Put like terms on the same side of the equation by adding 3 and 2x to both sides. 8 = 4x
March 1, 2014

science (?)
It would help greatly to know the context of the term.
March 1, 2014

Pys 202
a case study?
March 1, 2014

Geometry
V = hπr^2 h = V/πr^2 Insert values and solve for h.
February 28, 2014

science
Average about 28 days. Diagram lacking. You cannot copy and paste here.
February 28, 2014

math (?)
No line of best fit. You cannot copy and paste here.
February 28, 2014

Biology
agree
February 28, 2014

statistics
Either-or probabilities are found by adding the individual probabilities. .43 + .14 = ?
February 28, 2014

biology
Since this is not my area of expertise, I searched Google under the key words "transcription molecules" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=transcription+molecules&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
February 28, 2014

Math (?)
Graphs not shown, Cannot copy and paste here.
February 28, 2014

math
C = πd d = 2r In your case: C = 50 * π * 2r Insert values and calculate for C
February 28, 2014

Math (?)
What is "your original set"?
February 28, 2014

Statistics
If "the probability of birth is equal in all months," that means that you would expect 10 students to be born in each month. Would either distribution apply in this case?
February 28, 2014

Statistics
Are the means from the same population or different?
February 28, 2014

Science
Agree
February 27, 2014

math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1. 35 + 50 + (25/5 * 5) - (8+11) = 110 - 19 = 91 2. 24/8 + 31 = 34 3. 3 + 2(7) = 17 4. 5(3) - 16 = 15 - 16 = -1 5. right.
February 27, 2014

BIOLOGY
Not willfully, but random mutation does occur.
February 27, 2014

ethics
I disagree. http://www.utilitarianism.net/singer/by/1972----.htm
February 27, 2014

consumer math
($15,876 * 1.0525) - .1($15,876) = ?
February 27, 2014

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.
February 27, 2014

math
Volume = height * Base Therefore: V/B = h Insert values and calculate.
February 27, 2014

ethics
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.
February 27, 2014

algebra
Do you mean 5 -(+2)? 5 - (+2) = 5 - 2 = 3
February 27, 2014

Algebra
With 2π factored out… (x^2 + 4x + 4) + (x^2 + 7x + 10) = 2x^2 + 11x + 14 or 2π(2x^2 + 11x + 14)
February 27, 2014

math
81 > n^2 = (-8)^2
February 27, 2014

math
35 + 35 = 70 (?)
February 27, 2014

Math
-6x^2 + 15x
February 27, 2014

Math 102
(30.60-18)/18 = ?
February 27, 2014

math
(8*32) - 52 = ?
February 27, 2014

Alegbra
Substitute 4c for d in first equation and solve for c. Insert that value into the second equation and solve for d. Check by inserting both values into the first equation.
February 27, 2014

Math
15.025
February 26, 2014

Psychology
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results. Extraneous variables — other than the independent ...
February 26, 2014

Psychology
Responses consistent over time, places and persons are attributed to one's personality. Consequences to an organism's responses are the key relationship in operant conditioning. Rewarded responses will continue or increase, nonrewarded responses will go to extinction. ...
February 26, 2014

health
http://drdavespsychologypage.homestead.com/AIDS_in_Arizona.pdf
February 26, 2014

Maths (?)
We cannot see the figure. You cannot copy and paste here.
February 26, 2014

statistics
Z = (score-mean)/SD Either use the handout or 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.
February 26, 2014

Mathematic
1000
February 26, 2014

math
4(6+2) - 6 = 26
February 26, 2014

Science (?)
Missing needed data. Cannot copy and paste here.
February 25, 2014

algebra
2L + 2W < 330 L < 90 180 + 2W < 330 2W < 150 W < 75
February 25, 2014

math (?)
What do c and d signify?
February 25, 2014

math
7.5 mm
February 25, 2014

math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. .06x = 9.33 x = 9.33/06 = 155.50
February 25, 2014

Math
5 + .04t < 2 + .10t 3 < .06t t > 3/.06 = 50
February 25, 2014

MATH (?)
How many of each color are in a package?
February 25, 2014

math
(2.50-1.75)M - 40 = 550 .75M = 590 M = 590/.75
February 25, 2014

Algebra Readiness
The previous post is for the square cake. Need more data for the "heart cake."
February 25, 2014

Algebra Readiness
L = W = 8 2W + 2L = Perimeter W * L = area
February 25, 2014

behavioral statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities to compare their Z scores (the most common type of standard score).
February 25, 2014

Math
(2*6+3)^2 > 175 15^2 > 175 225 > 175
February 25, 2014

Statistics
Don't have a TI-84 calculator, but.... 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 (.80) related to a Z score. Insert that value into the above ...
February 25, 2014

math
2 1/3x = 7/3x = 15 x = 6.43 .43 * 7/3 = ?
February 25, 2014

math
5x = beads in necklace 5x + x = 192 Solve for x, then 5x.
February 25, 2014

math
14 - 9 = ?
February 25, 2014

probability
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (1-.4)(1-.8)(1-.6) = ?
February 25, 2014

Statistics
It is 99%, sorry for the typo.
February 25, 2014

Statistics
95% = mean ± 2.575 SEm SEm = SD/√n I'll let you do the calculations.
February 25, 2014

Science Please HELP!!!
X-chromsome Now are you reedy for the real thing rather than just practice?
February 24, 2014

Genetics
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.
February 24, 2014

ela
Google each term. 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/.
February 24, 2014

business communication (?)
Do you have alternatives to choose from? You cannot copy and paste here. Having typos (as you have in your subject listing) indicates lack of attention to detail.
February 24, 2014

math
19/5 = x/1.5 Solve for x.
February 24, 2014

math
9.5/2 = x/14 Solve for x.
February 24, 2014

Math
6'4" = 76" 1" = 2.54 cm 76" * 2.54 = ?
February 24, 2014

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. However, I searched Google under the key words "power assertion psychology" to get...
February 24, 2014

vocab (?)
It would help if you included the context for these terms.
February 24, 2014

Science
How could you throw a ball, "if inertia didn’t exist?"
February 24, 2014

psy220
Not knowing what your question is, I searched Google under the key words "American pursuit of happiness" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=American+pusuit+of+happiness&ie=UTF-8&oe=UTF-8#q=American%20pursuit%20of%...
February 24, 2014

AP style (?)
What is the context? For example, if it is North Central College, it would not be hyphenated.
February 23, 2014

Statistics (?)
What blanks? Z = (score-mean)/SD T = 50 + 10Z
February 23, 2014

statistics
95% = mean ± 2 SD Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = square root of variance ...
February 23, 2014

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 later post.
February 23, 2014

math (?)
We cannot see your diagram, and you cannot copy and paste it. https://www.google.com/search?client=safari&rls=en&q=right+acute+and+obtuse+angles&ie=UTF-8&oe=UTF-8
February 23, 2014

Probability
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/3 * 1/3 = ?
February 23, 2014

Statistics
Either-or probabilities are found by adding the individual probabilities. Since three face cards are already spades, delete them for the face card probability. 9/52 + 13/52 = ?
February 22, 2014

Probability
Right!
February 22, 2014

Probability
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.
February 22, 2014

rutgers
With your data, you don't, unless you meant ∑(mean-x)^2 = 238 You have to subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = square root of ...
February 22, 2014

math
33.60/4 *1000 = ?
February 22, 2014

statistics
Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text labeled something like "...
February 22, 2014

A Peculiar Question
It is a learned method of relating to others. If it inconsistent over situations and persons, it can be considered an aspect of one's personality. However, whatever is learned can be unlearned… assuming that the person wants to unlearn it.
February 21, 2014

Algebra 1
The latter. Exponents are added when multiplying terms.
February 21, 2014

math
(11,000-8690)/11,000 = ?
February 21, 2014

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