Saturday

April 25, 2015

April 25, 2015

Total # Posts: 19,715

**Math**

Right.
*March 24, 2015*

**Biology**

Google each term.
*March 24, 2015*

**maths**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Since 3 sides are even and 3 are odd, the chances of even = 3/6 = 1/2. For three dice, probability of all even = (1/2)^3 = 1/2...
*March 24, 2015*

**Math, Algebra**

B = A/2 B = C + 1/12 = 1/6 + 1/12 = 2/12 + 1/12 = ? Put answer to second equation into the first to find A, then add the two.
*March 24, 2015*

**Math**

If it is a rectangular prism, why would you sketch a triangle? First, find the perimeter, 2L + 2W. Then multiply by 200/4, "the top quarter of each vertical face."
*March 23, 2015*

**statistis**

Range = highest score - lowest. Find the mean = 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...
*March 23, 2015*

**pls help me pre algebra**

2^3/2^3 = (2*2*2)/(2*2*2) They cancel each other out, which gives you 1.
*March 23, 2015*

**math**

Also, indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*March 23, 2015*

**expressions**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. I agree with your answers. 5^2 * 5^4 = 5^6 3^3 * 3^6 = 3^9
*March 23, 2015*

**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 proportions/probabilities related to your Z scores.
*March 23, 2015*

**algebra**

7.2 - 8.6 + 9.3 + 5.4 = 13.3
*March 23, 2015*

**Probability & 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 = 1.96 95% = mean ± 1.96 SEm SEm = SD/√n
*March 23, 2015*

**biology/evolution**

Does it fool pollinators into believing that it does?
*March 22, 2015*

**analytical tools**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .74^4 * (1-.74) = ?
*March 22, 2015*

**Biology needs help**

Medhat's response makes it look like the post has been answered.
*March 22, 2015*

**Probability and Statistcis**

I don't know what five numbers you are seeking, but this might be a partial response. 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 ...
*March 22, 2015*

**Statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .05^10 = ?
*March 22, 2015*

**Science Please**

6. correct 7. wrong 8. right 9. wrong 10. disagree
*March 22, 2015*

**Biology**

Right, all are tall and half are yellow.
*March 22, 2015*

**math**

"Before the third card is chosen" means a 1 is chosen as either the first card or second card. Probability of 1 being chosen as first card = 2/6. Assuming that the first card was not a 1, the probability of 1 being chosen as a second card = 2/5. Either-or ...
*March 22, 2015*

**Psychology help**

Not sure what you seek. Acknowledging positive achievements?
*March 22, 2015*

**Life orientation**

What is NFSAS?
*March 22, 2015*

**math**

x would be the height and 6 - 2x would be the length/width.
*March 22, 2015*

**algebra**

100 * (3,000-237)/3,000 = ?
*March 21, 2015*

**English**

"Go" is not necessary. "Sic" indicates that it was as written, even if erroneous. “you’re ready to go (sic) do something else’’ (Jordan, first name, year, possibly page if book) https://www.google.com/search?client=safari&rls=en&q=text+...
*March 21, 2015*

**math**

A = S + 8 17A + 9S = 4,400 Substitute S+8 for A in the second equation and solve for S. Insert that value into the first equation to solve for A. Check by putting both values into the second equation.
*March 21, 2015*

**Math**

We cannot graph on these posts.
*March 21, 2015*

**maths**

Convert cm to mm by multiplying by 10. V = πr^2h = π * 140^2 * 100 = π * 19600 * 100 = 1,960,000π 1,960,000π = π2^2h = π4h Solve for h = length
*March 21, 2015*

**math**

Lacking data. How many numbers are there? The probability of hitting a particular number is the same no matter which spin it is.
*March 21, 2015*

**Help with Psychology regarding Positive Correlatio**

With a positive correlation, both variables increase/decrease together.
*March 21, 2015*

**Genetics (science)**

Both are Bb. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*March 21, 2015*

**Science**

Man is FF, woman is aa. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*March 21, 2015*

**statistic**

No data. You cannot copy and paste here.
*March 21, 2015*

**statistics (jay)**

If you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked.
*March 20, 2015*

**statistics (etoile)**

Ho: M = E Ha: M < E 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 ...
*March 20, 2015*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/14 * 1/13 * 1/12 = ?
*March 20, 2015*

**math**

(x - .30) = 3(24.95) + 2(45) Solve for x.
*March 20, 2015*

**math**

A square would maximize the area. 400/3 = ?
*March 20, 2015*

**geometry**

B = 3C + 22 86 + B + C = 180 Substitute 3C+22 for B in the second equation and solve for C.
*March 20, 2015*

**Tsi math**

Perimeter = 2L + 2W (2*20 + 2*7) *.98 = ?
*March 20, 2015*

**math**

80 - 13 - 10 = 57 Since that number is odd, how could he have an equal number? Do you have typos?
*March 20, 2015*

**english**

Not unless you post it. You cannot copy and paste here.
*March 19, 2015*

**Math**

Hint: When multiplying/dividing, the exponents are added/subtracted respectively.
*March 19, 2015*

**Math**

3.25*10^-22 * 3*10^3 = ?
*March 19, 2015*

**MATH SUPER HELP!**

1 gm = 1000 mgm 1 liter = 1000 ml 1 m = 10 cm Use those equivalents to find your answers.
*March 19, 2015*

**Math**

Plot the points out on graph paper to see what you get. It could be more than one of the alternatives.
*March 19, 2015*

**Math**

average = mean = ∑x/n = (.82+.89+.77)/3 = ?
*March 19, 2015*

**environmental science**

Availability of food and mates? Safety from predators?
*March 19, 2015*

**math**

agree.
*March 19, 2015*

**math help please**

Agree.
*March 19, 2015*

**biology**

From the F1 generation, I would assume that Tall is dominant and short is recessive. What genotypes would give you approximately 25% short. Cannot draw a Punnett square here.
*March 19, 2015*

**sociology**

Math, English, Science, etc.? Elementary, Middle School, High School, Etc.?
*March 19, 2015*

**math**

I assume you mean cm^2 for area. 3003.014/32 = ?
*March 18, 2015*

**Math needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Online "^" is used to indicate an exponent, e.g., x^2 = x squared.
*March 17, 2015*

**statistics**

a-c. 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 of the Z scores. Multiply by 100 to get percentage. d. Go to table first to find Z, then insert into...
*March 17, 2015*

**Math**

None of the opposite sides form any triangle. A triangle needs three sides.
*March 17, 2015*

**Psychology**

How the genotype effects the phenotype?
*March 17, 2015*

**mensuration**

It would help if you proofread your questions before you posted them. Missing data, "breadth is ___ cm."
*March 17, 2015*

**math**

What table?
*March 17, 2015*

**math**

We cannot draw pictures on these posts. Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 3 * 50 = 150
*March 17, 2015*

**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., even though I don't know what 5 steps you mean. Z = (...
*March 16, 2015*

**Math**

Parallelogram, rectangle?
*March 16, 2015*

**sciences**

How do you expect us to "explain in your own words"?
*March 16, 2015*

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .30 * 120,000/1,800,000 = .30 * 12/180 = ?
*March 16, 2015*

**Math**

Whether -9 or 9, x^2 = 81 81 + z = 103
*March 16, 2015*

**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.
*March 16, 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 between the two Z scores.
*March 16, 2015*

**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.
*March 16, 2015*

**life orientatiton**

What is "nfsas"?
*March 15, 2015*

**Statistics**

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.
*March 15, 2015*

**English Literature**

Since this is not my area of expertise, I searched Google under the key words "Pietism and the American Character" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Pietism+and+the+American+Character&ie=UTF-8&oe=UTF-8&gws_rd=ssl In ...
*March 15, 2015*

**algebra**

x ≠ 3x Online "^" is used to indicate an exponent, e.g., x^2 = x squared. If you mean x = 3, the 8x^2 + 4x = 8 * 3 * 3 + 4 * 3 = ?
*March 15, 2015*

**math**

What about the other 9 students? Cannot display Venn diagram here.
*March 15, 2015*

**math**

I don't know about the "formular," but the other two sides could be 50m each, with the area = 50^2.
*March 15, 2015*

**algebra**

No table.
*March 14, 2015*

**spanish**

Did your look up each term in your Spanish dictionary? I did. B
*March 14, 2015*

**Algebra**

Definitely don't take plan three at $30/minute. After first month: One: $19.99 + $25 + .32m Two: ($70-$40) + $30 + .30m Three: $28 + $30m At beginning of month, there are no minutes.
*March 14, 2015*

**Stats**

SEm = SD/√n
*March 13, 2015*

**Statistics**

mean = ∑x/n = 980/14 = ? Subtract each of the scores (# in each class) 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 ...
*March 13, 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.
*March 13, 2015*

**science**

Sperm and egg each have the haploid number of chromosomes = 23. Of these, only one is a sex chromosome, X for females and either X or Y for males.
*March 13, 2015*

**Science Help Please**

Agree.
*March 13, 2015*

**Separation processes**

Since this is not my area of expertise, I searched Google under the key words "bubble-point line" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=bubble-point+line&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
*March 13, 2015*

**Science Help**

disagree.
*March 13, 2015*

**Science - 7th grade (repost)**

38. agree 48. C 49. Not sure 57 - 59. Yes
*March 12, 2015*

**satistics**

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. Hint: in smaller portion.
*March 12, 2015*

**Math**

Including the four in the corners, 16.
*March 12, 2015*

**math**

For each increase on the left, you lose 3 on the right.
*March 12, 2015*

**Science - 7th grade**

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.
*March 12, 2015*

**statistics/probability**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability between the two Z scores.
*March 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 related to the Z score.
*March 12, 2015*

**Maths**

https://www.google.com/search?client=safari&rls=en&q=Factorizing+trinomials&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*March 12, 2015*

**Math**

W = 3/4L WL = 432 Substitute 3/4L for W in the second equation and solve for L. Insert that value into the first equation to solve for W. Check by putting both values into the second equation.
*March 11, 2015*

**math**

W = 2/3L WL = 864 Substitute 2/3L for W in the second equation and solve for L. Insert that value into the first equation to solve for W. Check by putting both values into the second equation.
*March 11, 2015*

**Science - 7th grade**

Right on all counts.
*March 11, 2015*

**statistics (Agnes)**

First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked. What is your question?
*March 11, 2015*

**statistics (Stuart Joel)**

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.
*March 11, 2015*

**science**

Since this is not my area of expertise, I searched Google under the key words "apparent vs absolute magnitude" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=apparent+vs+absolute+magnitude&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the ...
*March 11, 2015*

**science**

https://www.google.com/search?client=safari&rls=en&q=moon+rotation+and+orbital+period&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*March 11, 2015*

**Stats**

(9-3.25)/9 = ?
*March 11, 2015*