Posts by PsyDAG
Total # Posts: 24,206

math
No choices given. Cannot copy and paste here. 
conversions math
1728 in^3 = 1 ft^3 70.5/1728 = x/1 Solve for x. 
Spanish
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. 
biology
What cycle? Cannot copy and paste here. 
science
Since hydrogen and helium are the most elemental, I would pick them. 
Science
What do YOU think? 
Math
If the events are independent, the probability of both/all events occurring. 2 * 3 * 3 = ? 
math
Yes 
math
Disagree. Arrange values in order of size to solve. 
la
Agree 
Math
4m 
Sociology
I searched Google under the key words "sociological imagination" to get these possible sources: https://us.search.yahoo.com/yhs/search?hspart=iry&hsimp=yhsfullyhosted_011&type=mcx_mdmac_18_14_1¶m1=yhsbeacon¶m2=f%3D4%26b%3DSafari%26cc%3DUS%26p%3Dmcyahoo%26cd%... 
math
Since this is not my area of expertise, I searched Google under the key words "weather predictions accuracy" to get these possible sources: https://us.search.yahoo.com/yhs/search?hspart=iry&hsimp=yhsfullyhosted_011&type=mcx_mdmac_18_14_1¶m1=yhsbeacon¶m2=f%... 
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 * 1/4 = ? 
Math
Do it step by step. .4+.7 = 1.1 1.1 * 2 = 2.2 4  2.2 = ? 
Metallurgy
It would help if you proofread your questions before you posted them. 
Algebra
This is not algebra. 
Science
This might be a start. https://hypertextbook.com/facts/1999/JaneFishler.shtml 
Math
Looks fine to me. 
Math
I can't make sense about what you have written. This is my guess for the first. 6/15? 14/35? 
Math
What "negative indices"? What happened to "a" in your second alternative? I would go with 1/9a^2. 
Maths
Unless there is a typo, 42/8 = 5 with 2 sweets left over. 
SOCIAL STUDIES
Further Limitations Speech – any serious threat of harm, e.g., "I will kill you and your children." Movement – any purposeful action intended to result in harm to others, excluding self defense. 
Algebra
No statements. Cannot copy and paste here. Sexist; Mandy's equation choices are all, y = 9x. 
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. What do you think? 
Science
By the way, this math not science. 
Science
Since both = y, they must be equal to each other. x^2+2x = 3x+20 Solve for x, then y. 
science
From Google: Suntan and sunburn are familiar effects of overexposure of the skin to UV, along with higher risk of skin cancer. Living things on dry land would be severely damaged by ultraviolet radiation from the Sun if most of it were not filtered out by the Earth's ... 
PreAlgebra
Agree with Swimmer 
math
No line plot. Cannot copy and paster here. 
science
Since this is not my area of expertise, I searched Google under the key words "types of muscle tissue" to get these possible sources: https://us.search.yahoo.com/yhs/search?hspart=iry&hsimp=yhsfullyhosted_011&type=mcx_mdmac_18_14_1¶m1=yhsbeacon¶m2=f%3D4%26b%... 
Math
Try mapping them out on graph paper. It should become evident. 
science
It would depend on how close the planet is to the sun. 
Math
4 can be obtained by 2,2 3,1 or 1,3 9 can be obtained by 6,3 3,6 5,4 or 4,5 10 can be obtained by 6,4 4,6 or 5,5 For each, they are out of 36 possibilities. 
Medicine
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, here is a start. https://us.search.yahoo.com/yhs/search?hspart=iry&hsimp=yhs... 
Statistics
a) 37/75 b) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (37/75)^2 * (38/75)^3 = ? C) do similar process as b. 
math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .68 * .87 = ? 
statistics
https://us.search.yahoo.com/yhs/search?hspart=iry&hsimp=yhsfullyhosted_011&type=mcx_mdmac_18_14_1¶m1=yhsbeacon¶m2=f%3D4%26b%3DSafari%26cc%3DUS%26p%3Dmcyahoo%26cd%... 
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 ... 
Statistics
n = 4, the values are 78, 86, 79, and 81. Compare to mean = 85. 
Math
No advertisement. Cannot copy and paste here. 
Math
Can't make sense out of your data. 
science
Can't make sense out of your data. Three Ds for two cars? What pillars? 
Science
It would depend on individual differences, age, health status, and so on. 
Science
Sounds good. 
math
Cannot see yellow sector. You cannot copy and paste here. 
math
Since this is not my area of expertise, I searched Google under the key words "meteorologist predictions" to get these possible sources: https://us.search.yahoo.com/yhs/search?hspart=iry&hsimp=yhsfullyhosted_011&type=mcx_mdmac_18_14_1¶m1=yhsbeacon¶m2=f%3D4%... 
Statistics
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. Standard deviation = square root of variance Z = (mean1  mean2)/... 
Math
p(not red) = (5020)/50 = ? 
Statistic
Z = (scoremean)/SEm = (43.5)/SEm SEm = SD/?n Look in the back of your statistics textbook for a table called something like “area under normal distribution” to find the proportion/probability related to the Z score. 
Statistics
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. Jooby, if you can't provide an answer to the problem... 
Math
Original cost for shopkeeper. (1.2)(180) = 144 Original price before discount. 1.1 (180) = 198 (198144)/144 = ? 
Science (portfolio)
https://us.search.yahoo.com/yhs/search?hspart=iry&hsimp=yhsfullyhosted_011&type=mcx_mdmac_18_14_1¶m1=yhsbeacon¶m2=f%3D4%26b%3DSafari%26cc%3DUS%26p%3Dmcyahoo%26cd%... 
Math
You have two equations here. 3 * 3y = 3 9y = 3 Divide both sides by 9. y = 3/9 = 1/3 2x  y = 5 Substitute 1/3 for y and solve for x. 
Statistics
It would depend on the question(s) you are asking. 
Statistics
$ ? 
Biology
Mutation naturally occurs in individuals. If that mutation helps the individuals survive, their offspring will continue the changes in the population, causing it to evolve. 
Math
No choices given. Cannot copy and paste here. 
Statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. P(pass Geog) = .05 * .74 = ? P(pass Stat) = .95 * .26 = ? Eitheror probabilities are found by adding the individual probabilities. 
Math
If he tosses a 3, from your data, Joe will lose 30. 
Biology
Agree 
Math
.0111 * 7.5*10^9 = ? 
Math
Mean = ?x/n Calculate means. Whichever bags has the fewer potatoes, would have (on average) the larger potatoes. 
Sociology
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. Street crime is usually perceived as more violent, while ... 
Biology
Since a gamete is haploid, I would say one. A gamete is a reproductive cell or sex cell that contains the haploid set of chromosomes. 
Biology
Again, what are your choices? You cannot copy and paste here. 
Biology
What are your choices? 
Pre Algebra
The slope of a line in the plane containing the x and y axes is generally represented by the letter m, and is defined as the change in the y coordinate divided by the corresponding change in the x coordinate, between two distinct points on the line. Thus, even though it is ... 
Math
Volume = ? r^2 h = 3.14 * 17^2 * 27 = ? 
Statistics
Another way. Z = (scoremean)/SD = (5870)15 = ? Then 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. 
Statistics
Z = (scoremean)/SD = (5870)/15 = ? 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. 
Statistics
You are including values 5, 6, 7, 8, 9 & 10 and also the zero value for the range. 6/21 = ? 
Science
It must be one of three that they improved on the most, but you can't pick which of the three unless you have specific data on the speeds. I would hope you are controlling the factors related to the data being typed. 
AP Statistics
Whatever number is chosen, there is a 1/6 chance of that showing up on each die. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. P(win one) = 1/6 * 5/6 * 5/6 = ? P(win none) = ... 
Math
agree 
math
12L * .85 * 120 = 28,800 Solve for L. 
science
You want us to set up your experiment for you? 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. 
Math
Subtract 3 from both sides, then divide both sides by 7. 
Science
Since the sun is a star, no difference Since this is not my area of expertise, I searched Google under the key words "evolution of a star" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=evolution+of+a+star&ie=UTF8&oe=UTF8 In the... 
Math
You need to know what question you want to ask/answer. 
PreAlgebra
Disagree. Area = ? r^2 = ? 3^2 = ? (3*3) = ? 
algebra 2
15 + 18 + 21 + 24 + 27 + 30 + 33 = ? 
math statistics
Ignore my second post. 
math statistics
Sorry, I gave you the answer to not failing. Subtract the answer to above from 1.00. 
math statistics
Eitheror probabilities are found by adding the individual probabilities. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. P(1 fail) = .2 * .98^8 = ? P(2 fail) = .2^2 * .98^7 = ? 
Algebra 1
T = 4B T = B + 210 Substitute 4B for T in the second equation and solve for B. Insert that value into the first equation to solve for T. Check by putting both values into the second equation. 
Science
Since R indicates one allele and r indicates a different one, would that be "homo" or "hetero"? 
Life science (?)
First, please do not use all capitals. Online it is like SHOUTING. Not only is it rude, but it is harder to understand. Thank you. Second, what investigation? 
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. 
Spanish
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. 
Math
You are right. I goofed. 
Math
Disagree Area = 3.14 (150/2)^2 = ? 
Math (?)
First, what is the sample mean and standard deviation? No spreadsheet given. Cannot copy and paste here. 
Math (?)
Need mean and standard deviation of sample. 
Science
Since this is not my area of expertise, I searched Google under the key words "functions of leaves" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=functions+of+leaves&ie=UTF8&oe=UTF8 In the future, you can find the information ... 
Math, Science
Since this is not my area of expertise, I searched Google under the key words "displacement vectors in navigation" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=displacement+vectors++in+navigation&ie=UTF8&oe=UTF8 In the future... 
science
However, it would be more convenient for us if you indicate your choice at each question, e.g., an asterisk (*). 
science
agree on all 
Math(?)
No drawing. Cannot copy and paste here. It would also help if you proofread your questions before you posted them. "2 in by 3 in. "? Is this for a doll house? 
statistics
SEm = SD/?n = 27,000/?81 = ?