Monday
May 30, 2016

Posts by PsyDAG

Total # Posts: 21,903

math
Cannot draw graphs on these posts.
September 21, 2015

science
What reaction?
September 21, 2015

probability
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 (.20) and its Z score. Insert data into above equation. 1 - .20 = ?
September 21, 2015

Math (partial)
3. Add 33 to both sides. 5. Subtract 7 from both sides.
September 21, 2015

math
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Assuming that you mean (y^4)(y^3) with the numerals as exponents. When multiplying with the same base, the exponents are added. (y^4)(y^3) = y^7
September 21, 2015

Math
m + (-13) = -18 m -13 = -18 m = -5
September 21, 2015

English
What is you question?
September 21, 2015

Business Statistics
With you limited data, the best estimate is 350 hours. If you want a probability statement, P = mean ± Z (SEm) SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/...
September 20, 2015

Statistics
It is one of the eleven numbers.
September 20, 2015

Algebra
It would help if you proofread your questions before you posted them. Do you really mean "4 ft by 10 in long"? If so, 10 inches is the width. If that is really what you mean 40/4 = 10.
September 20, 2015

Math
Inadequate data.
September 20, 2015

science
What is your question?
September 20, 2015

Science
Since when is water volume measured in meters? With the same volume of each water, (10+90)/2 = ?
September 20, 2015

English
Have you tried reading the story? Are you talking about the "White Knight Chronicles"? If so, Google that title.
September 20, 2015

Science
What distance?
September 20, 2015

MATH
Multiply both sides of the equation by x.
September 19, 2015

science
What is your question?
September 19, 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. Online, “*” is used to indicate multiplication to avoid confusion with “x&#...
September 19, 2015

Math
Looks good to me.
September 19, 2015

Math
7/5 = x/35 Solve for x.
September 19, 2015

Biology
Need to know dominance factors of genotype to gauge percents of phenotype.
September 19, 2015

Psychology
It would go from upper left to lower right in a moderately loose pattern.
September 18, 2015

Science
Since this is not my area of expertise, I searched Google under the key words "models in science" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=%22models+in+science%22&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
September 18, 2015

Algebra
Not shown. Cannot copy and paste here.
September 18, 2015

math
Multiply both sides by 8. 3. x + 56 = -80 5. 4x - 40 = -3x +16 6. Get rid of parentheses. 3x - 12 - x - 5 = 2x + 11 Combine like terms and solve for x. However, unless you have a typo, #6 is unsolvable.
September 17, 2015

community psychology
What is your hypothesis?
September 17, 2015

science
agree
September 17, 2015

Math
(42-10)/42 = ?
September 17, 2015

Math
9/(5+1) = 1.5 1.5 * 5 = 7.5 1.5 * 1 = 1.5 7.5 + 1.5 = 9
September 17, 2015

Math
area = a * base area/a = base 96/8 = ?
September 17, 2015

math
Let x = speed 3x = 2(x+19) Solve for x.
September 16, 2015

Science
Right
September 16, 2015

Science
Agree
September 16, 2015

college algebra
Consider a country with only 100 people. What do you think their total emissions would be?
September 16, 2015

maths
Factors to (x-6)(x+1)
September 16, 2015

college algebra
It would help to relate to number of drivers in each country, not just per capita.
September 16, 2015

college algebra
94,848/128,000,000 = x/US population Insert data and solve for x.
September 16, 2015

biology (hannah)
If you don't know, do not respond. Your response indicates that the post was already answered.
September 15, 2015

biology
Since this is not my area of expertise, I searched Google under the key words "rocks storing carbon" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=rocks+storing+carbon&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
September 15, 2015

stats
Z = (score-mean)/SD Insert values and calculate.
September 15, 2015

science
No figure. You cannot copy and paste here.
September 15, 2015

Math
What is your question? Here is a guess. a/c - c/a Multiply by ca a^2 - c^2
September 15, 2015

Science
No, the experiment is confounded with the quality of the irrigation systems.
September 15, 2015

Math
2x ≤ $35 Your division signs look like plus signs. 2x/2 ≤ $35/2 x ≤ $17.50 per puppy However, if one puppy < $17.50, the other can be proportionately > $17.50. "≤" is found by pressing "<" and "option" keys.
September 15, 2015

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.
September 15, 2015

satistics
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 "...
September 15, 2015

Statistics
Approximately mean ±2Z or ±2SD
September 14, 2015

Science
A, but anyway, the sample of 2 hits is too small.
September 14, 2015

science
No. 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 later post.
September 14, 2015

Math
Graph it out. What does it look like?
September 14, 2015

STATISTICS
Need measure of variability.
September 14, 2015

math
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 between the two Z scores.
September 14, 2015

Math
No circle graph. Cannot copy and paste here.
September 14, 2015

Math
What was original problem?
September 14, 2015

Algebra
It would help if you proofread your questions before you posted them. Do you really want "the average cost of the crate"? ($75+$82)/2 = ?
September 14, 2015

algebra
-3*(4+7) = -3 * 11 = -33
September 14, 2015

statistics
It seems like it is asking for the numerical values of each variable.
September 13, 2015

grammer
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 will start you out. drawings (plural) are
September 13, 2015

math
9.6 - 8.4 = ?
September 13, 2015

Maths
1) 2a^2b(1+4b) 2) Correct
September 13, 2015

Physics needs help
Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you. Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
September 13, 2015

math
12 cm (120*72)/(12*12) = 60
September 13, 2015

math
6 cm (120*72)/(6*6) = 240
September 13, 2015

math
What is your question?
September 12, 2015

algebra
f(2) = (3*2^2) - (4*2) - 1 = 3*4 - 8 - 1 = 3 Use the same process for the remaining problems.
September 12, 2015

math
2/5c + 4 -1/5 = -4 Subtract 4 and add 1/5 to both sides. 2/5c = -7 4/5 = -7.8 Multiply both sides by 5/2. c = 19.5
September 12, 2015

Math
Quantitative, quantitative, nominal, (nominal)???, quantitative
September 12, 2015

Algebra 2
What expression? You cannot copy and paste here.
September 12, 2015

statistic
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.
September 12, 2015

math
1/10 = x/11.9 Solve for x. Do the same for second question.
September 12, 2015

Biology
If blue is recessive to hazel, yes. Even not knowing genotypes for hair, I would assume not.
September 11, 2015

algebra
80 + .35n = 49.25 + .5n 30.75 = .15n n < 205
September 11, 2015

biology
Right
September 11, 2015

math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. A negative times a positive is a negative.
September 11, 2015

science
What graph? You cannot copy and paste here.
September 11, 2015

science
What graph? You cannot copy and paste here. Only use one name.
September 11, 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.
September 11, 2015

Physics needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. How is this biology?
September 11, 2015

psychology
What are your choices? Behaviorism?
September 10, 2015

Alegbra
s = L -18 5L - 4s = 100 Substitute L-18 for s in the second equation and solve for L. Insert that value into the first equation to solve for s. Check by putting both values into the second equation.
September 10, 2015

Math needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
September 10, 2015

Statistics
.997 = mean ± Z * SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.003/2) and its Z score. Insert data into above equation and solve.
September 10, 2015

Math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Get rid of parentheses first. Z - 9 = 208 + 530 - 8 Continue from there.
September 10, 2015

Math
26^3 + 10^2 = ?
September 10, 2015

Math question
Are you sure it is 3 squares rather than 4? If 4, have longer sticks in a square, and shorter sticks bisecting within the larger square.
September 9, 2015

Math
Get rid of parentheses first. -12÷3•(-8+16-6)+2 = -12÷3•(2)+2 = ?
September 9, 2015

science
How about using a magnet?
September 9, 2015

science
What surface?
September 9, 2015

Science
What list? You cannot copy and paste here.
September 9, 2015

Science
No following. Cannot copy and paste here.
September 9, 2015

Physics needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
September 9, 2015

statistics
See previous post.
September 9, 2015

statistics
Use the Chi-square (X^2) method. X^2 = ∑ (O-E)^2/E, where O = observed frequency and E = expected frequency. ∑ = sum of all the cells. E = (column total * row total)/grand total df = n - 1, where n = number of cells Look up value in X^2 table in the back of your ...
September 9, 2015

Snethezekile High School
I would suggest consulting your high school school counselor, who can administer interest tests and ask you specific questions to help you in your decisions.
September 9, 2015

algebra
If roommates are not sharing in this expense, M = $500 + x However, if it is "how much more money," then M = x.
September 9, 2015

?
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. What is your question?
September 9, 2015

Math
Of the 4 by 6, which is the width? L/W = NL/15 Enter L and W and solve for new length (NL).
September 8, 2015

Math
Percent bar? 300 * .80 = ?
September 8, 2015

Math
Board is 26 by (26 + 10) = 36. Area = 26 * 36 = ? Divide area by 9, then calculate possible length and width.
September 8, 2015

Math
You do not need to press "return" to put in the denominator in a fraction. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 7/10 * (7-1)/(10-1) = ?
September 8, 2015

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