Sunday
July 24, 2016

Posts by PsyDAG

Total # Posts: 22,083

Statistic
What is your question?
April 17, 2016

dramatic art .tourism. history and math lit
Contact your school counselor with this question.
April 17, 2016

Elementary Statistics
Z = (score-mean)/SEm SEm = SD/sqrt n Use same table.
April 16, 2016

Algebra
Let X = initiation fee X + 18m = 3950 X + 7m = 3125 Subtract second equation from first to solve for m. Insert value into either equation to solve for X.
April 16, 2016

science help pls pls
Under changing conditions
April 15, 2016

science help pls pls
Hydro- = water Geo- = ground
April 15, 2016

i really need help with science pls help
Disagree.
April 15, 2016

science help pls pls pls
Dwarf planet
April 15, 2016

algebra
We cannot measure your subjects to get the data.
April 14, 2016

Algebra
You did a good job. What's your confusion?
April 14, 2016

math
(1-7/8)*12 = ?
April 14, 2016

i really need help with science pls help
No diagram. Can't copy and paste here.
April 14, 2016

Math
Either-or probabilities are added. 10/20 + 3/20 + 5/20 = ?
April 14, 2016

Stats - Help!!!
Disagree.
April 14, 2016

Stats - Help!!!
Agree.
April 14, 2016

Stats - Help!!!
Agree with second choice.
April 14, 2016

Stats - Help!!!
Need goal before sample.
April 14, 2016

Maths Lit, Geography, English, LO, EGD, Afr.
Consult your school counselor who can help you define your goals according to your abilities and interests.
April 14, 2016

math
A = 6/8S 6A + 8S = 60 Substitute 6/8S for A in second equation and solve for S. Then use first equation to find A.
April 14, 2016

math
See your later post.
April 13, 2016

Stats
Since assignment is random, it is not C.
April 13, 2016

Stats
Agree. The blind condition will reduce probability of Jimenez treating them different.
April 13, 2016

stats
Use "areas under normal distribution" table in the back of your statistics text.
April 13, 2016

science (correct please)
2, 4 are wrong. The rest are right.
April 13, 2016

Statistics
Don't repeat questions. It wastes our time responding to multiples. See your later post.
April 13, 2016

Statistics
Don't repeat questions. It wastes our time responding to multiples. See your later post.
April 13, 2016

Science
1. Styrofoam insulates, copper conducts. 2. Warm air rises.
April 13, 2016

Urns and $ - Pre-Algebra
P (both) found by multiplying them. 1. P(red,red) = 12/20*8/13 = ? 2. P(1,10) = 5/18 * 6/(18-1) = ?
April 13, 2016

Physics needs help
Indicate specific area in subject heading.
April 13, 2016

Math
No parts shown. Cannot copy and paste here.
April 13, 2016

Algebra (Correction)
J + D + K = 320 Solve for D, then K.
April 12, 2016

Algebra
J = D + 20 K = D/2 J + D + K = ? (D+20) + D + D/2 = ?
April 12, 2016

Mathematics
We don't do your work for you. However, we will be glad to respond to your answers. Consult your text.
April 12, 2016

Health Plz help THX!!
Oxygen correct. Others unanswered or wrong. Seems like you are just guessing. Use your textbook.
April 12, 2016

science PLEASE CHECK MY ANSWERS
Disagree with first answer but not sure about second but guess at cast.
April 11, 2016

7th Grade Science
Those variations (mutations) that lead to survival in the environment continue. If not, those go to extinction.
April 11, 2016

science
Different, gas, solid or liquid. You supply why.
April 11, 2016

biology
The sperm and egg are each haploid.
April 11, 2016

Statistic
OK
April 11, 2016

Statistics
5,352/100,000 = ?
April 9, 2016

Statistics
26*26*10^3 = ?
April 9, 2016

Math
Any value to the zero power = 1
April 9, 2016

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.
April 9, 2016

math
let x = fiction books. 3x + x = 2000 Solve for x then 3x.
April 4, 2016

Math
From your info: 2/4 = x/8 Solve for x.
April 4, 2016

Math
5 + .10k > 1 + .50k Solve for k.
April 3, 2016

math
9.5 * 2/3 = ?
April 3, 2016

math
Unclear about the meaning of 6 1.
April 2, 2016

math
24/15 = x/18 Solve for x.
April 2, 2016

math
260/13 = 20 8(20) + 5(20) = 260 Can you work it from there?
April 2, 2016

Math
57(1.08) = ?
April 2, 2016

math
1. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. I. (50/90)^2 = ? II. Generalize from I. III. (50/90)(40/90) = ? 2. Either-or probabilities are found by adding the individual...
April 2, 2016

Math
$450 * 52 = ? Assuming that "tax" was inserted in error: [$115(52) + .095($125,000)/52] = ? Subtract one from the other.
April 1, 2016

Mathematics
No, did you try the other alternatives? -1 = 2(-2) + 1 = -3
April 1, 2016

Mathematics
Disagree.
April 1, 2016

statistics
Need to know mean and 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 between the two Z scores.
April 1, 2016

Math (???)
No table.
April 1, 2016

science
2 is my preference.
March 31, 2016

Maths, life science,business studies, EGD, LO and
Consult with your school counselor, who can help you evaluate your interests and abilities.
March 31, 2016

Biology
agree.
March 31, 2016

math
Let x = width 3/6 = x/15 Solve for x and then multiply by length.
March 31, 2016

maths (??)
Points not given here.
March 31, 2016

algebra
a + 7c = 62 2a + 8c = 79 Multiply first equation by 2 and then subtract the second equation from it.
March 31, 2016

Science
300/4 = km/hr = ?
March 31, 2016

Rebus (???)
What is your question?
March 31, 2016

Math
11/55 = ?
March 31, 2016

Math
5 qts+2gallons = 5+8 = ? quarts 1 Quart = 4 cups
March 30, 2016

algebra
When multiplying/dividing, exponents are added/subtracted respectively. y^a * y^a+2 = y^2a+2
March 30, 2016

Science (???)
What following?
March 30, 2016

Geometry
Here are some things that are more specific. http://drdavespsychologypage.homestead.com/Learning_Requirements.pdf http://drdavespsychologypage.homestead.com/Learning_Hints.pdf Advice to the exam-lorn ("test wiseness") I. Answer easy items first. If have to think ...
March 30, 2016

Math
L = B + 5
March 30, 2016

algebra
18 + m = 25 Subtract 18 from both sides.
March 30, 2016

math
P = 1900 + 50N Insert N value and calculate.
March 29, 2016

math
(1-3/8)X = 15 Solve for X.
March 29, 2016

math
In either case, do you have the volume data? Cannot solve with two unknowns.
March 29, 2016

Science
The weight of a human or the weigh of the planet?
March 29, 2016

Biology
https://www.google.com/search?client=safari&rls=en&q=erythrocytes+function&ie=UTF-8&oe=UTF-8&gws_rd=ssl
March 29, 2016

Biology
Agree.
March 29, 2016

science
150,000,000/17,000 = hours How many hours in a year? 24 * 365 = ? Divide hours by ?
March 29, 2016

Science
Agree.
March 28, 2016

Nsu
Also you need to indicate what elements.
March 28, 2016

specialized patient record
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 28, 2016

Spanish
Tiene razon.
March 28, 2016

Statistics
I would find table in the back of my statistics text labeled something like "areas under normal distribution" to find the proportion/probability. Or you could use this one: http://davidmlane.com/hyperstat/z_table.html
March 28, 2016

Chemistry needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
March 28, 2016

statistics
Agree.
March 28, 2016

math essentials
It would help if you proofread your questions before you posted them. I have no idea what "es026-1.jpg" means.
March 27, 2016

Math
Area = πr^2 d = 2r Circumference = πd For consumed, 4/12. For crust, 8/12 remain.
March 27, 2016

maths
2(11*2) + 2(8*2) = 76 Find area.
March 27, 2016

Statistics
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. (You lucked out.)
March 27, 2016

ana g mendez
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 Z score and other data into equation below. 95% = mean ± Z(SD)
March 27, 2016

Statistics
Use SEm and same equation and table. Compare proportion above 105 and 115.
March 26, 2016

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 of the Z score at the ordinate. Z = (score-mean)/SEm SEm = SD/√n Use same table.
March 26, 2016

Statistics
Do you have choices?
March 26, 2016

Science
Agree.
March 26, 2016

Science
Disagree.
March 26, 2016

Science
Right.
March 26, 2016

Science
Wrong. Do a Punnett Square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
March 26, 2016

math
5 3/8 + 2 1/4 = 5 3/8 + 2 2/8 = ?
March 25, 2016

Probability
#of E's/total number of letters = ? #of M's/total number of letters = ?
March 25, 2016

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