Wednesday
July 23, 2014

Posts by PsyDAG


Total # Posts: 17,967

algebra
Multiply out. 2x +20

sci207
Since this is not my area of expertise, I searched Google under the key words "water temperature affecting weather" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=water+temperature+effecting+weather&ie=UTF-8&oe=UTF-8 In the future...

math
1. 2(2/5) + 1/2 = 4/5 + 1/2 = .8 + .5 = 1.3 = 1 3/10 2. Using the information above, you should be able to do this one yourself.

Psychology
Possibly this article might help: http://drdavespsychologypage.homestead.com/Memory__What_Memory_.pdf

statistics
It would help if you proofread your questions before you posted them. You only have one value for the young. The independent variable is age, but it would be better if you more specifically defined the age ranges. I hope this helps.

Technology
Since this is not my area of expertise, I searched Google under the key words "sepia examples" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=sepia+examples&ie=UTF-8&oe=UTF-8 In the future, you can find the information you desire ...

statistics
You start with a null hypothesis and an alternative hypothesis. You decide what probability you will use to reject your null hypothesis, in other words what is statistically significant. That is also your type I error, the probability of rejecting your null hypothesis, when it...

Simple Biology
I am worried whether the majority is only 51% as vs. something like 95%. Besides, how could you test it?

Technology
See your later post.

please help bio
Since he only has one X chromosome, the allele must be for normal color vision.

Statistics
Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n (n = 25) 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 &...

science
motor or efferent

science
Since this is not my area of expertise, I searched Google under the key words "nerve nets" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=nerve+nets&ie=UTF-8&oe=UTF-8 In the future, you can find the information you desire more qui...

arithmetic
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 (?)
Insufficient data. How large is the paper and/or the strips?

Math
7 61/1000

Bar Graphs
Your preference.

Math--2question
Area = 4 π r^2 Volume = 4/3 π r^3

math
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Unclear. 37.8/103 = .36699 OR Online "^" is used to indicate and exponent, e.g., x^2 = x squared. 37.8/(10^3) = 37.8/1000 = .0378

maths
.21/12 = .0175 per tablet 1.50/100 = .015 per tablet (.0175-.015) * 12 = ?

math
.375 * (1- 2/3) = ? Change to percentage.

Algebra (?)
What is your question?

Maths
Profit for each = sales price - cost of production and sales.

Statistics (?)
No distribution shown.

Statistics
Have cells indicating satisfied/dissatisfied for each group. Calculate column, row and grand totals. 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...

Algebra II
Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to the Z scores.

algebra/ Can see I am right
So far so good, but what about the 241 letter arrangements not allowed?

I need to know how to work this Maths Problem
Frist of all, you don't have an equation. Equations have equal signs (=). If you don't know how to find a square root, there might be a table in your textbook. Assuming you haves no typos: -2√62+38 = -2(7.874) + 38 = -15.748 +38 = 22.252 38 - 2√62 ≠ 2...

Science--check my answers.
1. Agree 2. Disagree 3. Agree 4. Agree 5. Agree 6. Disagree

BIOLOGY please help
Since this is not my area of expertise, I searched Google under the key words "somatic cell division" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=somatic+cell+division&ie=UTF-8&oe=UTF-8 In the future, you can find the informati...

Math
Yes, that would add to give you the smallest prime p.

Science
Antibodies?

Algebra
10 * 9 * 8 * 7 = ?

Math (?)
There are several. What are your choices?

math
Since you didn't ask your question, I assume you want the total. 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 = ?

statistics (?)
Unable to predict with no more data. I don't even know what a math score of 30 signifies. Do you have choices?

Maths
So girls make up 1/3 of group, while boys make up 2/3. 1/3 *40 = 13. 3 rounded to 13 40 - 13 = 27 Do you have typos?

Math
Since this is subtraction, older person does not go "on top." Calculate number of days from May 17 thru December 31, then add 365( 2002-1987), then add days from Jan. 1 through October 28.

Not 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.

Math
5 - 2.25 ≥ 2.75

Pre Algebra
B, theoretical P(5) one roll = 1/6

math
a ≤ 12

HELP PLEASE !!
1. Disagree, are they arguing that they are not trapped? 2. See no indication of bursting through door; Mom doesn't sound worried. 3. If Tina is worried about drowning, what does that suggest? 4. Which would include the neighborhood?

biology
Look on most diagrams of the eye. Rods and cones Cornea and lens optic nerve

statistics
8 * .2 = 1.6 rounded to 2 are married and supervisors. 2/140 = ?

maths (?)
Cannot graph here and data is lacking.

Algebra 1--Please, help me!
(x-2)(x+2) = 780 x^2 - 4 = 780 x^2 = 784 Solve for x, then x+2 and x-2.

algebra1
No

Science
Since West is the direction the skates are heading, I would go with 3.

Science
I would agree.

Algebra 2
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 I'll let you do the c...

biology help
Cone

science help
agree.

math
32, when omitted leaves the median = (29+35)/2 = 32.

Science
I am unaware of how the direction of travel solely effects friction. What other factors are being considered?

Science
The atrium receives the blood, sends it to the ventricle, which pumps it to the body.

ALGEBRA
Multiply each by 1.06 to find total cost of each camera. Arrange in order of value. Middle-most score = median The mean = sum of scores/number of scores. Mode = most frequently occurring score. Range = highest score - lowest score. I'll let you do the calculations.

statistics
95% = mean ± 1.96 SEm SEm = SD/√n I'll let you calculate and come to your own conclusions.

Math help
It would help if you proofread your questions before you posted them. The last term has an exponent sign (^) with no value. Secondly, to evaluate your answer, you need to use parentheses () to better define your terms.

math
rectangular.

math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/6 * 1/6 = ?

Human Biology please help
Hypothalamus?

Math
5 black + 10 yellow = 2/3total Are you sure you don't have a typo?

Statistics
Definitely experimental, the doctors are not observing what is being done.

Statistics
Me too.

science (?)
None following. You cannot copy and paste here.

research paper
How about the old song title, "Smoke Gets in Your Eyes"?

math
I agree.

science
Since this is not my area of expertise, I searched Google under the key words "lineage bears" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=lineage+bears&ie=UTF-8&oe=UTF-8 In the future, you can find the information you desire mo...

statistics
Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to the Z scores.

aLGEBRA
Multiply everything by 12x. 15 + 7x = 4 - 2x Transpose. 9x = -11 x = -11/9

Statistics
Start with a correlation coefficient.

math
With this limited data, best estimate = 30/50 = ?

math
f(x) = 3x - 2 = 3(1.5) - 2 = ?

science
As indicated in your previous post, Google these concepts.

science
Since this is not my area of expertise, I searched Google under the key words "advantages disadvantages of diffusion in chemistry" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=advantages++disadvantages+of+diffusion+in+chemistry&...

life sciences
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results.

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 related to the Z score. Multiply by 93.

science
If that happened, there was probably some trauma to the heart, so the organism would die.

Matth
16/(18+16+22) = ?

math
2.25/12 = ? 3.24/18 = ? The answers to the two equations should lead you to answer the 3 questions.

math (?)
It would help if you proofread your questions before you posted them. What is "one 25_ -pound bag"? I assume it is not one 25-pound bag. If it is: 15 * 25 = ?

math (?)
The information you need would vary, depending on the type of business decision you wanted to make. What decision concerns you?

Biology
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Disagree with all except #2. 1. Food goes through small intestine before large. 3. What do you think the rocks are for? 4. Look up the functi...

Ethics in Criminal Justice
Whenever you have rights and privileges, duties and responsibilities are also present, not only for the other but for one's self.

math
Assuming that a and b are both ≥ 1, A.

math
Looks like PQ is divided into thirds. What does that tell you?

math
(80-20)/80 = ? Change to %.

health
Get a coach.

Statistics
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. Find the mean first = sum of scores/number of scores. Subtrac...

brilient stars
(3-2) * 40 = ?

physical (?)
What is your question?

statistics (?)
No data. You cannot copy and paste here.

Science
https://www.google.com/search?client=safari&rls=en&q=Fr,+atomic+number+87&ie=UTF-8&oe=UTF-8

Biology
Since this is not my area of expertise, I searched Google under the key words "shade avoidance in auxin in plants" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=shade+avoidance+in+auxin+in+plants&ie=UTF-8&oe=UTF-8 In the future, ...

statistics (?)
Cannot tell what values go with what variables.

statistic
It would help if you proofread your questions before you posted them. P typically stand for probability, which cannot be greater than 1.

math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 13/52 * (13-1)/(52-1) = ? I don't understand what you want in the last sentence.

statistics
A parameter is a value related to the total population, while statistic only relates to a sample, a portion of the population. That should help you to come to your own answers.

Algebra Help!!!
https://www.google.com/search?client=safari&rls=en&q=Graphing+Square+Root+Functions+on+Connexus&ie=UTF-8&oe=UTF-8

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