Friday

August 22, 2014

August 22, 2014

Total # Posts: 17,987

**math**

Multiply both sides by P and divide both sides by 300 to solve for J.
*April 29, 2014*

**Statistic in Social Science**

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(.90, .15, etc.) and related Z score. Insert into above equation and solve for score. For last two (c & d) ...
*April 29, 2014*

**statistics**

Without more data, I would also pick C.
*April 28, 2014*

**Math**

√-1 = i https://www.google.com/search?client=safari&rls=en&q=square+root+of+negative+one&ie=UTF-8&oe=UTF-8
*April 28, 2014*

**Math**

First of all, range is not a measure of central tendency. Since hours are numerical, eliminate C. However, since the data is not given, we cannot know if there are a significant number of outliers on one side (skewed distribution) or not. If so, median. If not, mean. The mean ...
*April 28, 2014*

**Science. Check Answer**

I assume you are referring to the physics definition of work. 1. W 2. W 3. N 4. W 5. W 6. N 7. W 8. W 9. W 10. N In physics, a force is said to do work when it acts on a body, and there is a displacement of the point of application in the direction of the force. For example, ...
*April 28, 2014*

**math**

a. Matched pairs c. 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)/grand total df = n - 1, where n = number of cells Look up value in X^2 table in...
*April 28, 2014*

**Biology**

Since this is not my area of expertise, I searched Google under the key words "functions of the skin" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=functions+of+the+skin&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*April 28, 2014*

**math question**

From your data, 63% + 9% = ?
*April 28, 2014*

**Science**

Since this is not my area of expertise, I searched Google under the key words "contribution of African elephant to world" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=contribution+of+African+elephant+to+world&ie=UTF-8&oe=UTF-8 ...
*April 27, 2014*

**Statistics**

Use data from your previous post. 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 your Z score.
*April 27, 2014*

**Statistics (?)**

Lacking data. https://www.google.com/search?client=safari&rls=en&q=cats+sleep+time&ie=UTF-8&oe=UTF-8
*April 27, 2014*

**Probability**

How does she know that she wasn't picking the same marble each time?
*April 27, 2014*

**Sociology**

A little additional information: http://drdavespsychologypage.homestead.com/Person_Perception__East_vs__West.pdf
*April 27, 2014*

**Sociology**

Assuming that you comparing Oriental (Easterners) vs. Occidentals (Westerners), Agree
*April 27, 2014*

**Sociology**

Disagree
*April 27, 2014*

**Biology**

The female has to be GG, and the male has to be bb. (Cannot be Gb.) The above are the genotypes. Use a Punnett Square to calculate offspring. https://www.google.com/search?client=safari&rls=en&q=Punnett+square&ie=UTF-8&oe=UTF-8
*April 27, 2014*

**math**

If x = shorter piece, then 4x = longer. x + 4x = 35 Solve for x.
*April 27, 2014*

**Psychology**

To find out if the test measures what it is supposed to measure (validity), test results are compared to some criterion.
*April 27, 2014*

**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 (.025) related to the Z score.
*April 27, 2014*

**Math needs Help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*April 27, 2014*

**statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability ([1-.95]/2 = .05/2 = .025) and its Z score. A. 95% = mean ± 1.96 SEm SEm = SD/√n
*April 27, 2014*

**science (?)**

How do you define "food miles" and "food points"?
*April 27, 2014*

**ap statistics**

Same as previous post.
*April 26, 2014*

**ap statistics**

Ho: mean1 = mean2 Ha: mean1 > mean2
*April 26, 2014*

**Math**

Circumference = 2πr = 2 * 3.14 * 8 = ?
*April 26, 2014*

**Science**

Since this is not my area of expertise, I searched Google under the key words "limitations for modeling mitosis" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=limitations+for+modeling+mitosis&ie=UTF-8&oe=UTF-8 In the future, you ...
*April 26, 2014*

**science**

Since the consumers eat the producers, I think more producers would lead to more energy available to the consumers.
*April 26, 2014*

**ap 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.
*April 25, 2014*

**ap 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 later post.
*April 25, 2014*

**health sciences**

Since this is not my area of expertise, I searched Google under the key words "changes that occur in the DNA of muscle fibers during exercise" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=changes+that+occur+in+the+DNA+of+muscle+...
*April 25, 2014*

**science**

acceleration?
*April 25, 2014*

**Math**

Right!
*April 25, 2014*

**ap statistics**

If you have multiple samples, their means will have a distribution. The mean and SD for that distribution answers your question.
*April 25, 2014*

**Biostatistics (?)**

If the data is missing, how can you put it in?
*April 25, 2014*

**Science (?)**

None listed. You cannot copy and paste here.
*April 25, 2014*

**Statistics**

https://www.google.com/search?client=safari&rls=en&q=pearson+correlation+calculator&ie=UTF-8&oe=UTF-8
*April 24, 2014*

**math**

R/2 = G G + R + 8 quarts = R/2 + R + 2 gallons = 14 gallons Solve for R.
*April 24, 2014*

**statistics (?)**

What is (are) your question(s)?
*April 24, 2014*

**Math**

https://www.google.com/search?client=safari&rls=en&q=Statistical+trees+branches&ie=UTF-8&oe=UTF-8
*April 24, 2014*

**science**

Consumer?
*April 24, 2014*

**math**

4 times as many as 8 = 8 * 4 = 32 1/4 as many as 8 = 1/4 * 8 = 8/4 = 2 Cannot draw on these posts.
*April 24, 2014*

**SCIENCE (incomplete)**

No chart. Cannot copy and paste here.
*April 24, 2014*

**biology**

Since this is not my area of expertise, I searched Google under the key words "cell translation" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=cell+translation&ie=UTF-8&oe=UTF-8 In the future, you can find the information you ...
*April 24, 2014*

**Health**

Lack of professionals to access, cost of accessing, lack of trust of professionals, not believing they need help
*April 24, 2014*

**Math**

Read my answer again. m = math time.
*April 24, 2014*

**Math**

Let m = math time, then English = 3m and science = 2m. m + 3m + 2m = 120 minutes Solve for m, then 2m.
*April 24, 2014*

**science**

How about feathers, wings and beaks? https://www.google.com/search?client=safari&rls=en&q=bird+characteristics&ie=UTF-8&oe=UTF-8
*April 24, 2014*

**math (?)**

Same thing here.
*April 23, 2014*

**math (?)**

"jpg" indicates you are copy and pasting. Can't do it here.
*April 23, 2014*

**Science**

https://www.google.com/search?client=safari&rls=en&q=Dilithium&ie=UTF-8&oe=UTF-8 What conclusion do you come to?
*April 23, 2014*

**Biology help**

We know that certain genes have specific effects on one's phenotype. However, Outside of containing DNA, we do not know how they cause these effects. https://www.google.com/search?client=safari&rls=en&q=How+does+a+gene+determine+a+trait%3F&ie=UTF-8&oe=UTF-8
*April 23, 2014*

**math**

It would help if you proofread your questions before you posted them. Millimeters is a length unit rather than volume. Even if this was changed to milliliters, the question is still unclear.
*April 23, 2014*

**Science**

Merely by writing these sentences will help you to remember the material you have written. Information in the following articles might also help. http://drdavespsychologypage.homestead.com/Be_Here_Now_.pdf http://drdavespsychologypage.homestead.com/Learning_Requirements.pdf ...
*April 23, 2014*

**maths**

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 it less than .05?
*April 23, 2014*

**Statistics and probability**

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)/grand total df = n - 1, where n = number of cells Look up value in X^2 table in the back of your ...
*April 23, 2014*

**Algebra II**

Anything times 1 or to the first power is itself. Unless you have typos, here is what I get: (2x)^3 + 12x^2 * (-5y) + 6x * 25y^2 - 125y^3 = 8x^3 - 60x^2y + 150xy^2 - 125y^3
*April 23, 2014*

**Algebra II**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (12/15)^7 * (3/15)^3 = ?
*April 23, 2014*

**math**

I assume it is a right triangle. Area = 48 = 1/2 hb 96 = hb Set one variable as multiple of 2 and see if the same multiple of 3 will multiply to = 96. Pythagorean theorem: 8^2 + 12^2 = Hyp^2 64 + 144 = 208 = Hyp^2 √208 does not match any of your choices. 14 < √...
*April 23, 2014*

**Stats.**

What about the women that tested negative for cancer?
*April 23, 2014*

**statistics (?)**

No table. You cannot copy and paste here.
*April 23, 2014*

**math**

If c = "additional number off (sic) customers," then each teller will serve "c - 16 OVER 4" [more clearly written (c-16)/4] additional customers.
*April 22, 2014*

**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 your later post.
*April 22, 2014*

**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. Quit using different names.
*April 22, 2014*

**health**

Since this is not my area of expertise, I searched Google under the key words "cardiac smooth muscle" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=cardiac+smooth+muscle&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*April 22, 2014*

**Science**

https://www.google.com/search?client=safari&rls=en&q=increase+the+magnetic+field+around+a+wire%3F&ie=UTF-8&oe=UTF-8
*April 22, 2014*

**genetics**

1. Mate with an Ll. If about 25% offspring are short-winged, it is also Ll. If none, it is LL. 2. If dominant, only one gene is needed for the disorder. If mom is heterozygous, her chances are 50%, if homozygous, certainty. 3. Right. If both parents are only carriers for the ...
*April 22, 2014*

**Algebra**

60 - 60/3 - 60/4 = ?
*April 22, 2014*

**Probability (?)**

Five defects out of how many? What size sample?
*April 22, 2014*

**statistics**

95% = mean ± 1.96 SEm SEm = SD/√n 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 = ...
*April 21, 2014*

**Math**

If the scale does not continue to slide, 20 * 10 = ?
*April 21, 2014*

**Math**

L > 3s + 4
*April 21, 2014*

**math**

x/17.5 = 12/5 Solve for x.
*April 21, 2014*

**math**

Convert feet to inches, then divide. (11*12*14*12)/(4*4) = ?
*April 21, 2014*

**statistics (?)**

Lacking data.
*April 21, 2014*

**geology**

Since this is not my area of expertise, I searched Google under the key words "value of igneous rocks" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=value+of+igneous+rocks&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*April 21, 2014*

**math (?)**

What is your question?
*April 21, 2014*

**Evolution question - HELP!**

Since this is not my area of expertise, I searched Google under the key words "Niles Eldredge change" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Niles+Eldredge+change&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*April 21, 2014*

**Biology**

If you are talking about the undigested food, it is chyme. If you mean the valve, it is the pyloric valve. You could have checked your answer more quickly by Googling it.
*April 21, 2014*

**Psychological and Psychophysiological Stress Disor**

I don't know if they are all undiagnosable, but war, rape, earthquake, tornado, explosions, severe physical attack, kidnapping….
*April 20, 2014*

**Ollu**

How close will you be standing to the mirror?
*April 20, 2014*

**statistics**

Why are two of the scores 35? Typo? Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the percentiles related to the Z scores. T = 50 + 10Z
*April 20, 2014*

**statistics**

We cannot show frequency distribution here. Arrange score in order of value. The frequency of each score will determine its value on the ordinate (y-axis).
*April 20, 2014*

**statistics**

Since this is not my area of expertise, I searched Google under the key words "contribution of computer in the development of science and technology" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=contribution+of+computer+in+the+...
*April 20, 2014*

**Math**

What do the widget manufacturers want to know? Production levels of widgets? Standardization of widgets? Sales of widgets?
*April 19, 2014*

**math**

From the way you have your last equation written "square root 3 /2" Looks like √(3/2). It should be written (25√3)/2. The brackets make the meaning clearer. The square root sign (√) can be obtained by using "v" and "alt/option" ...
*April 19, 2014*

**math**

Use Pythagorean theorem to find other leg. h^2 + b^2 = Hypotenuse^2 h^2 + (5√3)^2 = 100 Solve for h. Area = 1/2 hb Insert values and solve for area.
*April 19, 2014*

**math**

-4x-4y=12 Mutliply by 4. -16x - 16y = 48 Second equation: 16y=-16x-48 Transpose. 16x + 16y = -48 Multiply by -1. -16x - 16y = 48 What does that tell you?
*April 19, 2014*

**maths**

x = included, y = bring own y = 30 - x 5x + 3y = 110 Substitute 30-x for y in second equation and solve for x. Insert that value into the first equation and solve for y. Check by inserting both values into the second equation.
*April 19, 2014*

**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.
*April 19, 2014*

**statistics**

Ho: µ = sample mean
*April 18, 2014*

**statistics**

Z = (score-mean)/SD Insert the known values and solve for the unknown.
*April 18, 2014*

**Psychology**

interaction?
*April 18, 2014*

**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.
*April 18, 2014*

**sociology**

I would tend to go with "not falsifiable." This theory is NOT "based on empiricism," since "she is unable to produce an individual with above chance predictions."
*April 18, 2014*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.05) = Z = 1.645 90% = mean ± 1.645 SEm SEm = SD/√n
*April 18, 2014*

**Science**

In the chromosomes of the egg and sperm.
*April 18, 2014*

**Algebra**

Divide both numerator and denominator by 2.
*April 18, 2014*

**Algebra**

8/2a
*April 18, 2014*

**Stats**

95% = mean ± 1.96 SEm SEm = SD/√n
*April 18, 2014*

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