Monday
July 6, 2015

Posts by PsyDAG


Total # Posts: 20,004

science
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. Google each of those terms. Don't just copy the material. Express the ideas in your own ...
May 30, 2015

Algebra
If n = 150% m = 1.5m n > m
May 29, 2015

Algebra
You did a good job with a. If there are no parentheses, multiply first before adding or subtracting.
May 28, 2015

Algebra
-18 ≠ 18 I'll leave you to show the steps. x = 17
May 28, 2015

Algebra
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.
May 28, 2015

English
Agree
May 28, 2015

Biology ASAP
1. afferent vs. efferent vs. interneurons (look up) 2. http://en.wikipedia.org/wiki/Cochlear_nerve
May 28, 2015

Science (theory of evolution)
https://www.google.com/search?client=safari&rls=en&q=cladogram+worksheet&ie=UTF-8&oe=UTF-8&gws_rd=ssl
May 27, 2015

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.
May 27, 2015

1st grade math
Did you find it
May 27, 2015

1st grade math
How about 10 + 10 + 10 + 4 = 34? Cannot draw pictures on these posts.
May 27, 2015

Pychology
What are your choices?
May 27, 2015

Statistics 2023
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Assuming that you are saying that 23.8% of the 11.2% of the 20+ joggers are female, I would say .112 * .238 = ,0267. However, ...
May 27, 2015

INTERVAL OF THE MEAN
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (±.05) and its Z score. 90% = mean ± Z (SEm) SEm = SD/√n
May 26, 2015

Biology
Since this is not my area of expertise, I searched Google under the key words "radioactive decay" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=radioactive+decay&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
May 25, 2015

Algebra 1
No equations. Set both y's = to each other.
May 25, 2015

Statistics
To figure the probability, the pass mark is extraneous information, not needed. 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 ...
May 25, 2015

Stats
One is the opposite of the other. If the confidence interval = 95%, then the level of significance = P = .05, assuming a two-tailed test.
May 24, 2015

P.E.
Agree.
May 23, 2015

Math
Glad to see some of your thinking. I think what you call "explanatory" and "response" variables are what we call independent and dependent variables. "Confounding" = extraneous. Although weather is an extraneous variable, weather effects can be ...
May 23, 2015

Math
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.
May 23, 2015

Stats
a. Z = (score-mean)/SD = (6820-7500)/1750 = -.39 Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score = .3483. b. Mean the same, but SEm = SD√n. Standard Error ...
May 23, 2015

Statistics
However, if you need sample of thousands to get statistical significance, it probably is not of practical significance in individual cases.
May 23, 2015

Statistics
https://www.google.com/search?client=safari&rls=en&q=practical+statistical+significance&ie=UTF-8&oe=UTF-8&gws_rd=ssl
May 23, 2015

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.
May 22, 2015

English
Since this is not my area of expertise, I searched Google under the key words "interpreting scantron scores" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=reading+scantron+scores&ie=UTF-8&oe=UTF-8&gws_rd=ssl#rls=en&q=interpreting...
May 22, 2015

algebra
(2n^2+5n+4)(-4) = -8n^2 - 20n - 16 (2n^2+5n+4)(2n) = 4n^3 + 10n^2 + 8n Combine like terms. Looks like you have typos for C.
May 22, 2015

Algebra
Without the graphs, we cannot adequately respond.
May 22, 2015

5 th grade math
Process: 1 lb = 16 oz .30 * 16 oz = $4.80
May 21, 2015

algebra
agree.
May 21, 2015

algebra
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.
May 21, 2015

algebra
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. a^4b + a^2 b^3 = a^2b(a^2+b^2)
May 21, 2015

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.
May 21, 2015

Math
120/30 = x/84 Solve for x.
May 21, 2015

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 800.
May 21, 2015

math
What is your question?
May 21, 2015

biology
Since this is not my area of expertise, I searched Google under the key words "unsaturated alkenes" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=obesity&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information ...
May 21, 2015

Prob and Stats
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.
May 21, 2015

CSIR General Aptitude
What figure?
May 20, 2015

probability self study
Once you find the silver watch, you can eliminate the box with the two gold watches. So it is either the box with the two silver watches or the one with gold and silver, two possibilities = 1/2.
May 19, 2015

Math
4/(8-1) = ?
May 19, 2015

math
Get rid of parentheses. 9z+8+6-12z-9 = 40 Combine terms. -3z + 5 = 40 Subtract 5 from both sides and then divide by -3.
May 19, 2015

math
Add 4 to both sides, then multiply both sides by 3.
May 19, 2015

science (any tutor)
Good for you!
May 19, 2015

Math
Since when are baseballs filled with air? I would say zero. However, to find the volume: V = 4/3 π r^3 r = d/2
May 19, 2015

Math
4000(30% of 20% + 30%) = ?
May 18, 2015

Math
Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you. 72/2 = ?
May 18, 2015

Math HELP! Ms.Sue
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1. P(purple) = 7/9 Once purple is selected, P (white) = 2/(9-1) Multiply. 2, 3. Use similar process and compare answers.
May 18, 2015

algebra
100w + 10000 = 400w + 7000 Subtract 7000 and 100w from both sides. 3000 = 300w Solve for w. Insert w value in your equations above.
May 18, 2015

math
When multiplying/dividing, exponents are added/subtracted respectively. Answer is not A.
May 18, 2015

math
When multiplying/dividing, exponents are added/subtracted respectively. 100^12/100^8 = ?
May 18, 2015

anatomy and physiology
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.
May 17, 2015

Maths
3/9 / 2/8 = 3/9 * 8/2 = 1/3 * 4 = 4/3 2/5 * 8/4 = 2/5 * 2 = 4/5 Add the two.
May 17, 2015

Science
You are welcome.
May 17, 2015

Science
Since this is not my area of expertise, I searched Google under the key words "radiation conduction convection definitions" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=radiation+conduction+convection+definitions&ie=UTF-8&oe=UTF...
May 17, 2015

science
Since this is not my area of expertise, I searched Google under the key words "four principles of kinetic friction" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=four+principles+of+kinetic+friction&ie=UTF-8&oe=UTF-8&gws_rd=ssl In...
May 17, 2015

Biology
Since this is not my area of expertise, I searched Google under the key words "digestion absorption and assimilation of food" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=digestion+absorption+and+assimilation+of+food&ie=UTF-8&oe...
May 17, 2015

Math
P.S. How is this math?
May 16, 2015

Math
Since this is not my area of expertise, I searched Google under the key words "photosynthesis" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=photosynthesis&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information ...
May 16, 2015

Probalility
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.
May 15, 2015

math
Assume you weigh 100. 4/18 = x/100 400 = 18x x = 22.22 Is that close enough to 0.25?
May 14, 2015

Math
The number of events is 2, choosing the M&M and choosing the Skittle.
May 14, 2015

education technology
Newspaper? Book?
May 14, 2015

MATH
When multiplying/dividing, you add/subtract exponents, respectively. 1. x^9/x^2 ≠ x^11 2. h^14/h^3 ≠ h^19 None of the alternatives for 2 are correct. Do you have a typo?
May 14, 2015

Math help please
The chance probability of any number from 1-12 is 1/12 = 8.3%
May 14, 2015

statistics
a. 25.2 years b. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (±.025) and its Z score. 95% = mean ± Z SEm SEm = SD/√n SD = √variance c. Same ...
May 14, 2015

Math
Let x = amount invested at 19%. .19x + .06(25,000-x) = 3,320 Solve for x.
May 13, 2015

Math
A=πr(r+√[h^2+r^2]) Insert values and solve.
May 13, 2015

Math
Convert to decimals or… Consider that 7/8 > 1/2 and 7/24 < 1/2.
May 13, 2015

information technology
Since this is not my area of expertise, I searched Google under the key words "scope of information technology" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=scope+of+information+technology&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the ...
May 13, 2015

written communication
Plan? Intend?
May 13, 2015

math
.12x = 19,200 Solve for x.
May 13, 2015

math
V=πr^2h/3 350 = π r^2 (10/3) Solve for r.
May 13, 2015

mode in central tendency
Is there a score which appears most often?
May 12, 2015

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.
May 12, 2015

Ton
Each toss of two dice has 36 possibilites. 2 can only be obtained by 1,1 --> 1/36 *1000 = ? 4 can be obtained by 2,2 3,1 1,3 so --> 3/36 * 1000 = ? And so on….
May 12, 2015

Math
Let B = Brown (dominant) and b = blue (recessive) Lavonne's genotype is Bb, because dad has bb. Use Punnett square for Bb (Lavonne) and bb (husband) https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl Each birth is independent, ...
May 12, 2015

Math (Oooops)
4/10 * 2/10 = 2/5 * 1/5 ≠ 3/25
May 12, 2015

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 4/10 * 2/10 = 3/25
May 12, 2015

math
1 2/3 + 7/8 = 5/3 + 7/8 = 40/24 + 21/24 = ? in hours. Or your could convert to minutes. 60 + 40 + 52.5 = ? in minutes
May 11, 2015

Math
Cannot graph on these posts.
May 11, 2015

math
Yes
May 11, 2015

Statistics
1. 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. 2. Z = (score-mean)/SEm SEm = SD/√n Use same table.
May 11, 2015

Statistics
190 what? Minutes? Hours? Z = (score-mean)/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.
May 11, 2015

Algebra 2 Honors
-3/9 = y/81 Solve for y.
May 11, 2015

Math
√3b^2 = √3 * b or do you mean: √(3b^2/27b^4) = √(1/9b^2) = 1/3b
May 11, 2015

math
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. (x+2)^2-1=3 x^2 + 4x + 4 -1 = 3 x^2 + 4x = 0 x(x+4) = 0
May 11, 2015

Math
L = 4W L * W < 100 Substitute 4W for L.
May 11, 2015

Math
2 = 2 * 159 3 = 3 * 159 etcetra….
May 11, 2015

Math
c = 7s For your variables, determine what causes what. 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.
May 11, 2015

Extremly hard math
Just substitute those values for n to calculate C.
May 11, 2015

probs & stats
1. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.005) and its Z score. 99% = mean ± Z SEm SEm = SD/√n 2. Same but use .025. 3. Same but use .05. What is size ...
May 11, 2015

probs & stats
What is the significance level you are using? P = .05? P = .01? 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 ...
May 11, 2015

Math
-5x^2 + 8x - 2 Do you have a typo?
May 11, 2015

stats
µ ± 1.0 SD = approximately 68%
May 11, 2015

Pseudocode
What problem?
May 11, 2015

math
L = 3W L * W = 3W * W = 198 Solve for L and W, then use Pythagorean Theorem. L^2 + W^2 = Diagonal^2
May 11, 2015

mathsLiteracy,bussness and consumerstudies,economi
Talk to your school counselor. S/he can ask more specific questions to help you become aware of your best alternatives.
May 10, 2015

math
Don't sin.
May 10, 2015

math
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. I assume r1 = r^1 = r to the first power = r. e = 1 - r - y Add y and subtract e from both sides. y = 1 - r - e Insert values and solve.
May 10, 2015

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