Thursday
January 19, 2017

Posts by PsyDAG

Total # Posts: 22,877

Algebra
What is your question?
December 10, 2016

math
Cannot post distributions here.
December 10, 2016

statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 12/24 * (12-1)/(24-1) = ?
December 10, 2016

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. What are your best answers?
December 10, 2016

Algebra, Solving inequalities
1. Subtract 5h from both sides and add 16 to both sides. 2.Add 13 and subtract 4x from both sides. Looks like there is a typo somewhere. 3. Don't know. 6. Add 12 to both sides. 7. Divide both sides by 12. 8. When multiplying/dividing inequalities by a negative number, the ...
December 9, 2016

Science
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable.
December 9, 2016

Science
lead
December 9, 2016

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-.12)(1-.29) = ? B) It is in your data, .07.
December 9, 2016

statistics
Z = (score-mean)/SD = (844-541)/101 = 303/101 = 3
December 8, 2016

Math Probability Distribution
It would help if you proofread your questions before you posted them. "lies between 57 - c and 57 - c" = 0 98% = mean ± Z (SD) Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the ...
December 8, 2016

Math Probability Distribution
It would help if you proofread your questions before you posted them. "lies between 57 - c and 57 - c" = 0 98% = mean ± Z (SD) Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the ...
December 8, 2016

Science
Consult text or Google it. I searched Google under the key words "blood flow through body and heart" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=blood+flow+through+body+and+heart&ie=UTF-8&oe=UTF-8 In the future, you can find ...
December 8, 2016

Science (?)
No following. Cannot copy and paste here. Mars is smaller, so gravity is less.
December 8, 2016

math
The common denominator would be 50.
December 8, 2016

Algebra 2(help please!!)
(a) It is direct. (b) Knowing they are being observed may change behavior. (c) Sample = 10 students Population = all high school students (d) I would say none, because the sample is too small and b.
December 7, 2016

Math
You need to post the specific questions.
December 7, 2016

math
My son's name.
December 7, 2016

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 (.30) and its Z score. Insert data into above equation to solve for the score.
December 7, 2016

Algebra
Need some indication of twins' ages.
December 7, 2016

Algebra
It would help if you proofread your questions before you posted them. "$2.00"?
December 7, 2016

Math
The number ? is a mathematical constant, the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159. It has been represented by the Greek letter "?" since the mid-18th century, though it is also sometimes spelled out as "pi"...
December 7, 2016

math
T = .9(30) = ? P = .78(90) = ?
December 7, 2016

Science
No illustration. You cannotcopy and paste here. They are all related to reproduction.
December 7, 2016

math
More data needed.
December 7, 2016

Math
(1-.6)x = 240 Solve for x.
December 7, 2016

maths
8.5(128*81 - 125*78) = ?
December 7, 2016

Math
.6/6 = ?
December 7, 2016

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 between the two Z scores.
December 7, 2016

math
No table. Cannot copy and paste here.
December 6, 2016

math
agree
December 6, 2016

Math
Disagree, assuming each block is 1x1, that gives you 16 blocks. by the way, 1/4 ? 20%, 1/5 ? 25%
December 6, 2016

Math
.3 * 450 = ?
December 6, 2016

Science
80 * 4/5 = ?
December 6, 2016

Math
agree
December 5, 2016

attitude
As far as I know, "teapoi" is not one of the tutors. Even so, I apologize for any hateful post.
December 4, 2016

Maths
M = 3N (M+10) + (N+10) = 80 Substitute 3N for M in the second equation and solve for N. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.
December 4, 2016

math
The answer is right in front of you. "Skittles 30%"
December 4, 2016

Math
He could have just 6 insects. Or he could have 3 spiders and 2 insects.
December 4, 2016

algebra
Pythagorean theorem for right triangle. a^2 + b^2 = c^2 3^2 + 4^2 = c^2 Solve for c.
December 4, 2016

Maths
How can it be 125 and 295. To sum to 99, each must be less than 99.
December 4, 2016

math
Possibilities out of 36 are 1,3 1,2 3,1 2,1 1,1 2,2 6/36 = ?
December 4, 2016

Math
.6(150) + .75(200) + 130 = ?
December 3, 2016

Math
.6(150) + .75(200) + 130 = ?
December 3, 2016

Mathematics
1/70 = x/2100 Solve for x.
December 3, 2016

Math
27.30/17 = x/30 Solve for x.
December 3, 2016

MATH
No following given. You cannot copy and paste here.
December 2, 2016

biology
Look up each term in your text or Google.
December 2, 2016

math
No table.
December 1, 2016

Math
(1-1/4)x + 10*20 = 300 Solve for x.
December 1, 2016

Math
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 between the two Z scores.
December 1, 2016

Math
Area = width * height 35 = 5 * ?
December 1, 2016

Math
98
December 1, 2016

math (?)
No Data
December 1, 2016

math
M = S + 20 M + S = 50 Substitute S+20 for M in the second equation and solve for M. Insert that value into the first equation to solve for S. Check by putting both values into the second equation.
December 1, 2016

Math
41 + 41/7 = Total cost Divide total cost by 2.
November 30, 2016

Statistics
H0: mean = 185 H1: mean ? 185
November 30, 2016

math
B = O + 1 12B + 20O = 108 Substitute O+1 for B in the second equation and solve for O. Insert that value into the first equation to solve for B. Check by putting both values into the second equation.
November 30, 2016

Math
540/45 = x/60 Solve for x.
November 30, 2016

Math
75, 93, 57, 39 Which one?
November 30, 2016

VU
(1-5/7)x = 500 Solve for x.
November 30, 2016

math
Z = (score-mean)/SD
November 30, 2016

Math
7.5/22 = x/13 Solve for x.
November 29, 2016

Math
7.5/22 = x/1313 Solve for x.
November 29, 2016

math
3x-2 = 91 Solve for x.
November 29, 2016

Business 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.
November 29, 2016

Science/Biology/Health and Social Care
"If the body didn't have any energy," the organism would die.
November 29, 2016

Statistics (?)
What is your question?
November 29, 2016

Statistics
95% = mean ± Z(SD) 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. Insert data into above equation and solve.
November 28, 2016

math
I don't know how this is related to math. Although this is probably not much help for you, I would choose another site.
November 28, 2016

Math
Assuming that you meant 20 distance units: 20/5 = x/12 Solve for x.
November 28, 2016

Science
Glass, water, plants....
November 28, 2016

math
1000 + 900 + 800 + 700 + 600 + 500 + 400 = 4900
November 28, 2016

maths
Mode = most frequently occurring score.
November 28, 2016

Math
1?
November 28, 2016

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 later post.
November 28, 2016

math
3.9 + .15 = ?
November 28, 2016

Math
Outlier is most deviant score. mean = ?x/n
November 28, 2016

Math
No triangles. Cannot copy and paste here.
November 28, 2016

Math
D = 2R
November 28, 2016

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 "areas under ...
November 28, 2016

Math
No figures. Cannot copy and paste here.
November 28, 2016

Math
Possibly this. .2x = 16 Calculate for x.
November 27, 2016

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
November 27, 2016

math
5554.52/20 = 27.73 per hour Multiply by the hours worked.
November 27, 2016

MATH HELP NEEDED prt 2
"start fraction x over 3 end fraction" is more easily written "x/3." 1. Letter answer conflicts with asterisks. 2. x/3 - 10 = -12 x/3 = -2 x = -6 Letter answer conflicts with asterisks. 3. Letter answer conflicts with asterisks. 4. Letter answer conflicts ...
November 26, 2016

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.
November 26, 2016

Math
.09x = 18 Solve for x.
November 25, 2016

Science (?)
More data needed.
November 25, 2016

Math
Subtract 2 from both sides, then divide by 5.
November 25, 2016

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/2 * 1/3 = ?
November 25, 2016

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 6 * 6 = ?
November 23, 2016

system of equations
Multiply first equation by 3. -12x - 3y = 18 12x - 2y = -8 Add the two equations. -5y = 10 Solve for y, then x.
November 23, 2016

Math
If there are three figures total. 2(7*3) + 4^2 = ?
November 23, 2016

Math
I am assuming that the square is one of the rectangles. 7 * 3 + 4^2 = ?
November 23, 2016

Math
4/180 = x/400 Solve for x.
November 23, 2016

MATH
(x+1) + 2x + (3x+1) = 30 Solve for x, then the values of each side.
November 23, 2016

Math
Cannot draw on these posts.
November 23, 2016

science
Since this is not my area of expertise, I searched Google under the key words "what makes us cry while chopping onions" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=what+makes+us+cry+while+cutting+onions&ie=UTF-8&oe=UTF-8 In the...
November 23, 2016

science (?)
It would help if you proofread your questions before you posted them. "worm infestation of certain autoimmune disorders...."?
November 23, 2016

Algebra
2M + 22
November 22, 2016

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