Wednesday

May 4, 2016
Total # Posts: 21,639

**Math**

Was the "percent of fat calories that a person in America consumes each day" determined by this sample? If so, this sample is too small to generalize to the population. If not, I would assume that the data was found with a larger sample and apply the normal ...
*November 20, 2015*

**science**

What are your choices? Habit?
*November 20, 2015*

**Statistics**

Unclear. Typo? Z = .12/2 = .06? Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.06) and its Z score.
*November 20, 2015*

**Chemistry?**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. What is your question?
*November 20, 2015*

**Behavioral Statistics Help!**

How would you respond, if a bonus was taken away? Using "the same subjects tested in both situations" would lead this to happen.
*November 20, 2015*

**Statistics**

In the patient's mind, the placebo reduces anxiety (and therefore some of the stress). This reduction can decrease the perceived pain. http://drdavespsychologypage.homestead.com/Placebo_Power.pdf http://drdavespsychologypage.homestead.com/Placebo_Power_Doubled.pdf
*November 20, 2015*

**algebra**

https://www.google.com/search?client=safari&rls=en&q=cumulative+frequency+table&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*November 19, 2015*

**Math**

A square has all sides equal.
*November 19, 2015*

**math**

Distance = rate times time 10 = 65t 10 = 50t Solve for t, convert to minutes and compare.
*November 19, 2015*

**Stats**

No table. You cannot copy and paste here.
*November 19, 2015*

**math**

What is the "same" exchange rate?
*November 19, 2015*

**Science**

Since this is not my area of expertise, I searched Google under the key words "evolution evidence" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=evolution+evidence&ie=UTF-8&oe=UTF-8&gfe_rd=ssl&ei=6WJPVqyVB-aD8QfPwbWgDA In the ...
*November 19, 2015*

**science**

Density = mass/volume
*November 19, 2015*

**Statistics**

A) small sample. What experiment? B) If that is the first quartile, then 25% would consume 34.31 fat calories or less. Consumption ≤ 34.51
*November 19, 2015*

**Algebra**

When multiplying, exponents are added. 1. x^2/9 2. 16a^4/c^8
*November 19, 2015*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 19, 2015*

**scale factors**

3.5/1 = x/20 Solve for x.
*November 19, 2015*

**statistics**

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. 95% = mean ± Z(SEm) SEm = SD/√n Need value of SD.
*November 19, 2015*

**Science**

What solution?
*November 18, 2015*

**4th grade math**

How many 1/2 dozen and/or 1 dozen batches did she sell. For example: 6 half-dozen = $30 - $10 = $20 profit. 3 dozon = ? 2 half-dozen and 2 dozen = ? etcetera
*November 18, 2015*

**math**

b - .7b = Sale price
*November 18, 2015*

**Math**

It helps to indicate each answer WITH the question e.g., ***. 1. yes 2. No 3. No 4. Yes 5. Typo? 6. Yes 7. Yes 8. No 10. Yes
*November 18, 2015*

**Math**

We cannot chose for you.
*November 18, 2015*

**math**

It would help if you proofread your questions before you posted them. Typo?
*November 18, 2015*

**Math**

What rectangles? Cannot copy and paste here.
*November 17, 2015*

**Pre Algebra Math**

To check answers, we need to know what the problems are.
*November 17, 2015*

**Algebra(Please Help ASAP)**

Let x = tree height x/8 = 6/4 Solve for x.
*November 17, 2015*

**Chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 17, 2015*

**Business**

With data so spread out, it is essentially impossible to evaluate.
*November 17, 2015*

**biology**

Since this is not my area of expertise, I searched Google under the key words "purines in DNA" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=purines+in+DNA&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information ...
*November 17, 2015*

**maths**

1000km/2cm = xkm/2.5cm Solve for x.
*November 16, 2015*

**maths**

2/5 = x/15 20 - x = ?
*November 16, 2015*

**Southwark**

52 > 36
*November 16, 2015*

**Math**

B = 2S B - 600 = P B + P + S = 6900 2S + (B-600) + S = 6900 2S + (2S-600) +S = 6900 Solve for S.
*November 16, 2015*

**Math**

L = 2W + 8 2L + 2W = 100
*November 16, 2015*

**algebra**

It would help if you proofread your questions before you posted them. What quadratic function?
*November 16, 2015*

**Math**

http://www.celsius.co.uk/converter/
*November 16, 2015*

**Psychology**

The photoreceptor would sense brightness, whether rod or cone. However, since the cones work in combination to sense colors, that would not happen. Amount of light = brightness.
*November 16, 2015*

**Science**

What questions? We do not have lesson 9. 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.
*November 16, 2015*

**spanish**

What are your choices? ellos dan?
*November 16, 2015*

**biology**

Since this is not my area of expertise, I searched Google under the key words "history of the discovery of DNA" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=history+of+the+discovery+of+DNA&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the ...
*November 16, 2015*

**math**

For whole numbers, 2 and 1. If fractions, it can almost be infinite.
*November 16, 2015*

**Math**

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 ...
*November 15, 2015*

**English**

Noun
*November 15, 2015*

**college math**

3/5 = x/2000 Solve for x.
*November 15, 2015*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/49 * 1/48 * 1/47 * 1/46 * 1/45 * 1/44 = ? There is an equation for this, but I don't remember it.
*November 15, 2015*

**Math 6th grade**

Verbal presentation is presentation with words (e.g., two thousand fourteen).
*November 15, 2015*

**chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 15, 2015*

**math**

Let x = John's age (x-4)/2 = (x+5)/3 Solve for x.
*November 15, 2015*

**Algebra**

21.25
*November 15, 2015*

**math**

3, 13, 23, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39 39-42 pages
*November 15, 2015*

**Biology**

Stable environment where?
*November 14, 2015*

**Biology**

Other organisms produce them.
*November 14, 2015*

**Math**

M = F - 3 M = 4W Substitute F-3 for M and solve.
*November 14, 2015*

**math**

What original function?
*November 14, 2015*

**Biology**

a. How can it be dominant, if there are carriers who do not have the disease? b. No, use Punnett Square: https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*November 13, 2015*

**Biology**

a. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl b. Note that the male Y-chromosome does not have a normal clotting gene to dominate the recessive h gene on the X, so males cannot be just carriers. If they have one h gene, ...
*November 13, 2015*

**math**

A square would get the maximum area. (720/3)^2 = ?
*November 13, 2015*

**Biology 30**

a. Child would receive either A or B from mom, so could never have type O blood. There is no indication whether the parents are + or -. b. Do punnett square: https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*November 13, 2015*

**Statistics**

Ho: error1 = error2 Ha: error1 ≠ error2 Ho: new = old Ha: new > old
*November 13, 2015*

**Science**

Agree.
*November 13, 2015*

**Statistics Help!**

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.
*November 12, 2015*

**science**

A, B (disadvantage for the bacteria)
*November 12, 2015*

**science**

Varying sieves?
*November 12, 2015*

**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 (.758) and its Z score. Insert data into equation above to calculate score.
*November 12, 2015*

**math**

Pythagorean theorem a^2 + b^2 = c^2 (hypotenuse)
*November 12, 2015*

**math**

None. You cannot copy and paste here.
*November 12, 2015*

**english**

Since this is not my area of expertise, I searched Google under the key words "suddenly" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=suddenly&ie=UTF-8&oe=UTF-8&gfe_rd=ssl&ei=cMZEVo_kNOWD8QfHxYzYBg In the future, you can find ...
*November 12, 2015*

**Statistics Help Please!**

If P = .01, then directional would look for P = .01. If nondirectional, you would look for P = .005 in either direction.
*November 12, 2015*

**science**

Since this is not my area of expertise, I searched Google under the key words "pftba" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=pftba&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information you desire more ...
*November 11, 2015*

**math (?)**

It would help if you proofread your questions before you posted them.
*November 11, 2015*

**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 "...
*November 11, 2015*

**MLA citation**

https://www.google.com/search?client=safari&rls=en&q=mla+format&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*November 11, 2015*

**Paleontology needs help **

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Also it makes it much easier for us to respond, if the answers are listed with each question (e.g., *). 13 &14 are right.
*November 11, 2015*

**Math**

b + 5 9/8 = 5 6/8 Subtract 5 9/8 from both sides.
*November 11, 2015*

**Algebra Math**

Welcome.
*November 11, 2015*

**Algebra Math**

L = 3W +2 2L + 2W = 116 Substitute 3W+2 for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.
*November 11, 2015*

**chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 11, 2015*

**math**

Could designate in gallons (above), quarts, and scientific notation.
*November 11, 2015*

**Statistical Math (?)**

More data needed. Also, what do B, P and R signify?
*November 11, 2015*

**math**

You need to post the problem.
*November 11, 2015*

**maths**

1. 1 litre = 1000 ml 2. 2.199, 2.2, 2.22 3. 20 - 2x = 1 Solve for x.
*November 11, 2015*

**statistic concept application**

Lacking data. Mean? Standard Deviation?
*November 11, 2015*

**English**

It could be either, but I would bet on the Park.
*November 10, 2015*

**science help ASAP**

Agree with first but not second.
*November 10, 2015*

**science help**

Disagree. Fighting is cooperative?
*November 10, 2015*

**Math lacking data**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. It would help if you proofread your questions before you posted them.
*November 10, 2015*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 10, 2015*

**math**

36/4 = ?
*November 10, 2015*

**Statistic**

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 = (score-mean)/SEm SEm...
*November 9, 2015*

**math**

Since he always has the dollar bill, the problem then goes to how many ways can he make $.75 out of quarters and dimes. If both have to be used, it would only be 5 dimes and one quarter — one way. However, it could also be done with 3 quarters alone, giving you two ways. ...
*November 9, 2015*

**math -4th grade**

Agree with your answers.
*November 9, 2015*

**4th grade 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.
*November 9, 2015*

**Chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 9, 2015*

**Psychology**

Haven't noticed Ms Sue haters, but even so, your post is unnecessary in inappropriate.
*November 9, 2015*

**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. Also, it would help if you proofread your questions before you posted them. Data is missing.
*November 9, 2015*

**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.
*November 9, 2015*

**Statistics**

a) For the population, what about the residents who are not listed in the phone book?
*November 9, 2015*

**Spanish**

¡Que bueno!
*November 9, 2015*

**Spanish**

¡verdad!
*November 9, 2015*