Friday

September 19, 2014

September 19, 2014

Total # Posts: 18,216

**math (?)**

What are your choices? You cannot copy and paste here.
*May 1, 2014*

**Math**

It doesn't look like you did a problem. 2x - 28 + 3 = 7x + 5 -30 = 5x -6 = x
*May 1, 2014*

**Statistics**

.05 * 300 = 15 This means you would expect 15 tests to be significant solely by chance.
*May 1, 2014*

**Statistics**

With your limited data, I would pick C, because the confidence level includes zero.
*May 1, 2014*

**science**

Since this is not my area of expertise, I searched Google under the key words "restriction enzymes genetic engineering" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=restriction+enzymes+genetic+engineering&ie=UTF-8&oe=UTF-8 In ...
*May 1, 2014*

**Algebra**

https://www.google.com/search?client=safari&rls=en&q=math+ac+method&ie=UTF-8&oe=UTF-8
*April 30, 2014*

**biology**

Since this is not my area of expertise, I searched Google under the key words "ways that DNA mutation can alter genetic material" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=ways+that+DNA+mutation+can+alter+genetic+material&ie=...
*April 30, 2014*

**algebra**

Z = (score-mean)/SD Insert values and solve for SD.
*April 30, 2014*

**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 30, 2014*

**Probability**

One parent is Bb and the other is bb. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8
*April 30, 2014*

**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.
*April 30, 2014*

**Probabitilty**

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 30, 2014*

**science**

Since this is not my area of expertise, I searched Google under the key words "ocean area with few living things" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=ocean+area+with+few+living+things&ie=UTF-8&oe=UTF-8 In the future, ...
*April 30, 2014*

**Algebra 2**

Online "^" is used to indicate and exponent, e.g., x^2 = x squared. 5^4 = 5 * 5 * 5 * 5 = 625
*April 30, 2014*

**math (?)**

What is your question?
*April 30, 2014*

**math**

$154,330 * .045 = $6944.85
*April 30, 2014*

**statistics (?)**

What is your question?
*April 30, 2014*

**statistics**

A. Pairs were not matched. Sample too small for Z test. Group differences not measured by correlation.
*April 30, 2014*

**Math**

220 * 2 * $.75 = ?
*April 30, 2014*

**Math**

22,000/400 = ?
*April 30, 2014*

**math**

35 * 20 * 5 * 7 = ?
*April 30, 2014*

**statistics**

Inadequate data. 95% = mean ± 1.96 SEm SEm = SD/√n
*April 30, 2014*

**Math**

a. No, players of other sports not represented. b. Yes, it is open-ended.
*April 29, 2014*

**Statistics**

https://www.google.com/search?client=safari&rls=en&q=Tukey's+HSD+test&ie=UTF-8&oe=UTF-8
*April 29, 2014*

**statistics**

8. A 9. B
*April 29, 2014*

**science**

To keep the next generation from having double the species number of chromosomes.
*April 29, 2014*

**algebra 1**

x - 315/21 = 9 Solve for x.
*April 29, 2014*

**Math**

Assuming a normal distribution: 95% A = 1.2 ± 2 * .1 95% B = 1.5 ± 2 * .9
*April 29, 2014*

**math**

Cannot post graph here. Pick various values of x and calculate corresponding values of y. Draw your graph.
*April 29, 2014*

**Psychology**

Understanding the world around us. Does that correspond to any of your choices?
*April 29, 2014*

**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*

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