Friday
July 1, 2016

Posts by PsyDAG

Total # Posts: 22,027

math
10 * -12 = -120
November 7, 2015

maths
Cannot draw shapes on these posts.
November 6, 2015

math's
It would help if you proofread your questions before you posted them. The average of how many numbers? What seven numbers?
November 5, 2015

SCIENCE HELP
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, 2015

Science
Since this is not my area of expertise, I searched Google under the key words "tools used to collect data in space" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=tools+used+to+collect+data+in+space&ie=UTF-8&oe=UTF-8&gws_rd=ssl In...
November 5, 2015

biology
Put the bag over the mouth of the beaker and push?
November 5, 2015

6th grade Math
1/4 * 8/2 = ?
November 5, 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. See your later post.
November 5, 2015

stat
What is your question?
November 5, 2015

Math 141
I assume that one die = 3. The other numbers to get ≤ 7 are 1, 2, 3, 4. Since the other die has six sides, what are the odds?
November 5, 2015

Math 141
I assume that on of one die = 3. The other numbers to get ≤ 7 are 1, 2, 3, 4. Since the other die has six sides, what are the odds?
November 5, 2015

Zibonele high school
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
November 5, 2015

Math
Correct as far as you went, but what are the probabilities? 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 scores. D) Either-or ...
November 5, 2015

math
Takeoff, each stop and landing. How many is that?
November 5, 2015

Algebra 2
$2.50 + $2m = C $2/mile sound very high. Typo?
November 5, 2015

technical drawing
Cannot draw on these posts.
November 5, 2015

Math
It would help if you proofread your questions before you posted them. Does V earn > or < F? If >, then V = F + 2.25 If <, then V = F - 2.25 V + F = 14.55 Substitute F ± 2.25 for V in the last equation and solve for F. Insert that value into the first ...
November 5, 2015

Math
6 - 3 3/8 = 5 8/8 - 3 3/8 = 2 5/8 remaining Since the remaining portion is too small to wrap another present, you would need 3 pieces. However, if you combined two 2 5/8 pieces for one present, you would only need 2 pieces.
November 4, 2015

Marh
Yes, 1/12 of the total, whatever that is.
November 4, 2015

6th grade Math
It would help if you proofread your questions before you posted them. From your data, I have no idea how you got a negative number.
November 4, 2015

math
Something sounds "fishy" here. Three is included in "three or more." I would hope that the lower price is honored.
November 4, 2015

Science
Since this is not my area of expertise, I searched Google under the key words "natural and artificial selection comparison" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=natural+and+artificial+selection+comparison&ie=UTF-8&oe=UTF...
November 4, 2015

math
They only have four plays to get the ten yards for a first down. Are the -23 1/3 yards part of this same series of downs? If so, they need the 10 yards plus the 26 1/3 lost. You determine the equation.
November 4, 2015

Statistics
red/(red plus blue) = ?
November 4, 2015

Math
30 + .50x = T1 Substitute 52 for x and solve. Do a similar procedure for the other company.
November 4, 2015

math
If q = standard deviation: 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 for each Z scores distance from the mean. Add.
November 3, 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.
November 3, 2015

math
How is this math? TV news gives rapid presentation of short news bursts?
October 30, 2015

Science
The pH scale is a measure of the hydrogen ion concentration. It spans from 0 to 14 with the middle point (pH 7) being neutral (neither acidic or basic). Any pH number greater than 7 is considered a base and any pH number less than 7 is considered an acid.
October 30, 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.
October 30, 2015

Science
Give an example.
October 30, 2015

Statistics
No scores shown. a) What is "Sturges' formula"? b) 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. ...
October 30, 2015

Math
Correct except for 5.
October 29, 2015

biology
Cell membrane
October 29, 2015

science
What list?
October 29, 2015

Biology
Goggle each term.
October 29, 2015

Biology
What ideas?
October 29, 2015

social
Why are two choices identical?
October 29, 2015

math
L = 2W-7 L * W = 165 Substitute 2W-7 for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.
October 29, 2015

Math
Pythagorean Theorem a^2 + b^2 = Hyp^2 16 + 25 ≠ 36 225 + 256 ≠ 625
October 29, 2015

math
30.6 - 30.6/3 = ?
October 29, 2015

Statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability for each Z score. Either-or probabilities are found by adding the individual probabilities.
October 29, 2015

Human Growth
A refers to monozygotic twins.
October 29, 2015

Statistics HELP!!
Try human heights and heights of a basketball team.
October 28, 2015

math
20.00 - 5.50 - 2.60 = ?
October 28, 2015

Math Can Someone explain me about this question
All you need to saw off is 2' 8" inches to make the board that long. However: 4 yards = 12' 11' 12" - 2' 8" = 9' 4"
October 28, 2015

statistics
Since this is not my area of expertise, I searched Google under the key words "difference between the coefficient of determination and residuals" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=difference+between+the+coefficient+of...
October 28, 2015

MATH help
Multiply both sides by 4. x - 20 = 24 Take it from here.
October 28, 2015

math
Subtract 12 from both sides, then multiply by -1.
October 28, 2015

Math
Yes, if you math is correct.
October 28, 2015

Science
A half plus a half = a whole A whole plus a whole gives you what?
October 28, 2015

Statistics
Either-or probabilities are found by adding the individual probabilities. Do that for failure rates, then subtract from 1.
October 28, 2015

11th grade math
When multiplying/dividing, exponents are added/subtracted respectively. y^(a-b)
October 28, 2015

11th grade math
When multiplying/dividing, exponents are added/subtracted respectively. y^a-b
October 28, 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. See later post.
October 28, 2015

Pertunia msimango
It might help to ask this question of your high school/college counselor, who can ask the above and other questions and give you interest tests to help you determine possible avenues.
October 28, 2015

Math
√20 = 4.4721
October 28, 2015

MAth
1 and 4 are correct. 2. Add 8 to both sides. 3. Subtract 5 from both sides.
October 28, 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.
October 28, 2015

Behavioral Statistics Help!
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.
October 28, 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.
October 27, 2015

Behavioral Statistics
I answered this previously. We need to get 25% of the obtained scores. You are assuming that the scores ranged close to 1-100. That is typically NOT the case. What if all the scores were above 75? Check with one of the tests taken in any of your classes. What would the range ...
October 27, 2015

math
Do you mean (√23)/3 or √(23/3)? Either way, these answers do not apply as you have them written. Typos?
October 27, 2015

Math
2 * 2 = 4 Can draw pictures on these posts.
October 27, 2015

Geometry
The other endpoint will be the same distance from the midpoint as the known endpoint.
October 27, 2015

Maths
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Cannot sketch on these posts. Also, do you have a typo in your equation?
October 27, 2015

Chemistry needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
October 27, 2015

algebra
Multiply both sides by 6/5 5/6x * 6/5 = 25 (6/5) x = 30
October 27, 2015

math
74 + 12(52) = ?
October 27, 2015

math
3(2+1) = 3 * 3 = ?
October 27, 2015

Algebra
4x - 4b = x Subtract 4x from both sides. -4b = -3x Divide both sides by -3.
October 27, 2015

business statistics
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. Is that less than the level of significance you are using?
October 27, 2015

Algebraic Expressions
I'm not sure what you are asking. 1/3B = $13/hr(?)
October 27, 2015

Multi-cultural Psychology
It sounds best.
October 26, 2015

Math please check
agree.
October 26, 2015

Spanish
c, c, enseño, señor. tilde =n and alt, followed by typing the n in.
October 26, 2015

Spanish
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. c
October 26, 2015

5th grade math
V = 4D 5D + 3V = 3213 Substitute 4D for V in the second equation and solve for D. Insert that value into the first equation to solve for V. Check by putting both values into the second equation. Add D and V.
October 26, 2015

science
https://www.google.com/search?client=safari&rls=en&q=refraction&ie=UTF-8&oe=UTF-8&gws_rd=ssl
October 26, 2015

Science
2. I'm confused too. I would pick A or C. B and D are identical too. Either you have typos or bad question. 3. Right 4. Disagree. If dimples are dominant and one parent is homozygous, the child will always get a dominant gene. 5. What is B? Disagree. A would lead to all ...
October 26, 2015

Treasure!
of what?
October 26, 2015

Algebra 2
y = 11 - 2x 3x - 4y = 11 Substitute 11-2x for y in the second equation and solve for x. Insert that value into the first equation to solve for y. Check by putting both values into the second equation.
October 26, 2015

Trends
Why would you care? Does it effect how you feel about yourself? http://drdavespsychologypage.homestead.com/Looking-Glass_Self.pdf
October 26, 2015

Chemistry needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
October 26, 2015

Math- word prolems
A square will give you the maximum area. Do the two areas need to be the same size?
October 26, 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. However, I will give you a start. Z = (score-mean)/SD Find table in the back of your ...
October 26, 2015

Behavioral Statistics
What if nobody scored below 75?
October 25, 2015

Algebra 1
It doesn't give you an extra foot on each side, but it does add to the total dimensions and area. A square is a rectangle with equal sides. Try my method. Two sides would be 168, and the side across from river would be 164 of fencing plus a 4 foot gate.
October 25, 2015

Algebra 1
Get the closest to a square. (500 +4)/3 = length of side Side * side = ?
October 25, 2015

Biology Help PLEASE
You are right.
October 25, 2015

Biology Answer Check
Use same name when you post.
October 25, 2015

Biology Answer Check
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.
October 25, 2015

Biology Answer Check !!!!
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. Use same name. You are right.
October 25, 2015

science
With homozygous T parent, won't there always be a T in the genotype? Electrons are not in nucleus. https://www.google.com/search?client=safari&rls=en&q=mitochondria+plasma+membrane&ie=UTF-8&oe=UTF-8&gws_rd=ssl
October 25, 2015

science
agree
October 25, 2015

math
Disagree. ($1570-$400)/$100 = ? Disagree. $40 + (790-600).25 = ? Agree.
October 25, 2015

math
Agree.
October 25, 2015

math
Disagree. See previous post.
October 25, 2015

math
$3*1.7 + $3.50*.5 = ?
October 25, 2015

life science
What organisms?
October 25, 2015

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