Thursday

September 18, 2014

September 18, 2014

Total # Posts: 18,195

**stats**

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 "...
*June 20, 2014*

**Science**

Molecules, atoms, protons, neutrons and electrons?
*June 19, 2014*

**epi (?)**

What diagram?
*June 19, 2014*

**math**

All correct.
*June 19, 2014*

**math**

Most of Steve's answers do not fit the requirement of "The digit in my hundreths place is one less than the digit in my thousansths place."
*June 18, 2014*

**math**

.189 .178 .156 .145 .134 .123 Which do you want to use?
*June 18, 2014*

**science**

x * 15 * 6 = 216 Solve for x.
*June 18, 2014*

**math (?)**

Gets what?
*June 18, 2014*

**math (?)**

What is your question?
*June 18, 2014*

**math**

(5 * 24) + 8 = ?
*June 18, 2014*

**ENGLISH 111**

What is your area of interest? Enjoyment of the date? Repeated dating? Leading to a permanent relationship? Whichever: Online dating is (not) as satisfactory as traditional dating.
*June 18, 2014*

**finite math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
*June 17, 2014*

**finite math**

.445
*June 17, 2014*

**math**

No figure shown. You cannot copy and paste here.
*June 17, 2014*

**math**

Use process indicated in previous posts.
*June 17, 2014*

**math**

Transpose two values on the left-hand side of the equation. -x = 48675 - 57865 - 23129 = ? Then multiply both sides by -1.
*June 17, 2014*

**math**

Transpose two values on the left-hand side of the equation. x = 2240 - 5277 + 9384 = ?
*June 17, 2014*

**Statistics**

A. .9498 E. (454+741+1058)/(478+833+1644) = ?
*June 16, 2014*

**math**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Also, it would help if you proofread your questions before you posted them. How many of each color? How specifically do you want it rounded?
*June 16, 2014*

**algebra**

Add the two equations to cancel out y. 5x = -15 You should be able to work it from there.
*June 16, 2014*

**Statistics**

What is the standard deviation? T = 50 + 10SD
*June 16, 2014*

**Algebra**

Add the two equations. -x = 2 -4 - y = -1 y = ?
*June 16, 2014*

**science:biology**

They all carry blood.
*June 16, 2014*

**statistics for health research**

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 scores.
*June 16, 2014*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*June 16, 2014*

**Psychology?**

Person
*June 15, 2014*

**Math**

"<" indicates that the previous value is LESS than the following value. ">" indicates that the previous value is MORE than the following value.
*June 15, 2014*

**Algebra II**

a and b. Anything to the first power ("^1") is that value, 100^1 = 100. c. There is a middle (xy) term missing. d. The x^2 values combine but do not cancel each other out.
*June 15, 2014*

**psychology**

What information do you want from us? Here is a guess. https://www.google.com/search?client=safari&rls=en&q=correlation+coefficient&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*June 14, 2014*

**Algebra**

(x-3)(x+5) = ?
*June 13, 2014*

**Anatomy**

https://www.google.com/search?client=safari&rls=en&q=model+of+blood+flow+through+the+heart&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/...
*June 13, 2014*

**psychology (?)**

To what question?
*June 13, 2014*

**Anatomy**

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.
*June 13, 2014*

**science cant figure it out**

Since this is not my area of expertise, I searched Google under the key words "pace of evolutionary change" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=pace+of+evolutionary+change&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you...
*June 12, 2014*

**algebra (?)**

What is your question?
*June 12, 2014*

**Math**

It would help if you proofread your questions before you posted them. Online "^" is used to indicate and exponent, e.g., x^2 = x squared. Online, “*” is used to indicate multiplication. 7-9. Correct. 10. There is no equation. Equation requires equal sign...
*June 10, 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.
*June 10, 2014*

**Maths**

How do you expect use to help you on this message board?
*June 10, 2014*

**algebra**

4^3 - 5(4)^2 + 4 = 64 + 80 + 4 = ?
*June 10, 2014*

**statistics (?)**

What "lines below"?
*June 9, 2014*

**statistics**

There is no relationship.
*June 9, 2014*

**Math (?)**

Data missing.
*June 9, 2014*

**biology**

After 30 minutes = 2, after 60 = 4, after 90 = 8.
*June 9, 2014*

**biology**

After 30 minutes = 2, after 60 = 4, after 90 = 6.
*June 9, 2014*

**algebra (?)**

What is your question? With two unknowns, cannot solve without more data.
*June 8, 2014*

**Psychology**

If you cannot understand the above site, possibly this might help. 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...
*June 8, 2014*

**algebra (?)**

What following?
*June 8, 2014*

**math**

What criteria would you use to indicate "better"?
*June 8, 2014*

**Mathematics (?)**

No graph. No question.
*June 8, 2014*

**Math**

Right.
*June 8, 2014*

**Math**

3x + 40 = 2(x+17) = 2x + 34 x = -6 4(-6 -9) = ?
*June 8, 2014*

**Math (?)**

What statements? You cannot copy and paste here. Just guessing: 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 your Z scores.
*June 8, 2014*

**Stats**

a - d. 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. e. Reverse process, starting with .25 and its Z score
*June 7, 2014*

**statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.01 for two-tailed) and its Z score (score in terms of standard deviations). 98% = mean ± 2.33 SEm SEm = SD/√n
*June 6, 2014*

**math-roskdale (?)**

Scale lacking. The Z score is the raw score in terms standard deviations (SD). It is one type of standard score, cutting off the same percentages for any normal distribution. Z = (score-mean)/SD Find the mean first = sum of scores/number of scores Subtract each of the scores ...
*June 6, 2014*

**math**

95% = mean ± 1.96 SEm SEm = SD/√n
*June 5, 2014*

**statistics**

https://www.google.com/search?client=safari&rls=en&q=difference+between+small+and+large+samples&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*June 5, 2014*

**algebra**

Do you have a typo? "4x-4x" = 0 They cancel each other out.
*June 5, 2014*

**math question**

Agree
*June 5, 2014*

**English**

I would pick B.
*June 5, 2014*

**math (?)**

What is "it"?
*June 5, 2014*

**Math**

The Richter Scale is logarithmic, 5-2 = 3. 10^3 = 1000
*June 5, 2014*

**lıfe scıence (?)**

What kind of milk and cereal? How big is a serving?
*June 5, 2014*

**lıfe scıences**

Since this is not my area of expertise, I searched Google under the key words "importance of sodium in diet" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=importance+of+sodium+in+diet&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, ...
*June 5, 2014*

**lıfe scıences (?)**

What packet?
*June 5, 2014*

**MATH**

Multiply by 4. 6x + x - 2 = 40 Combine terms. 7x = 42 You should be able to take it from here.
*June 4, 2014*

**math (?)**

I have no idea what you are referring to. Lack needed data.
*June 4, 2014*

**random question about writing**

If nobody is available to proofread your work, you can do this yourself. After writing your material, put it aside for a day — at least several hours. (This breaks mental sets you might have that keep you from noticing problems.) Then read it aloud as if you were reading ...
*June 3, 2014*

**math**

Z = (score-mean)/SD Consult your table with the Z score. Multiply by 60.
*June 3, 2014*

**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.
*June 3, 2014*

**Scientific nottion**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Online "^" is used to indicate and exponent, e.g., x^2 = x squared. 3.0 * 10^6
*June 3, 2014*

**Science Plzz Help**

disagree
*June 3, 2014*

**math (?)**

No column data given. Cannot copy and paste here.
*June 3, 2014*

**math!!**

8.58/9 = ?
*June 3, 2014*

**statistics**

From your data, it looks like 84 took politics and 16 took history. There is no information to indicate how many took both.
*June 3, 2014*

**Meiosis and mitosis**

Only half, so combining egg and sperm does not double the number of chromosomes.
*June 3, 2014*

**algebra**

Total bill = 1.13 * meal
*June 3, 2014*

**biology (?)**

Who is mating with whom? For example AA with AA, all offspring would be AA.
*June 3, 2014*

**PLEASE HELP CHECK ANSWER SCIENCE**

agree
*June 2, 2014*

**college algebra**

If w = width, then length = w + 20 w(w+20) = 8000 Solve for w, then length.
*June 2, 2014*

**Two numbers with exponents??**

When multiplying, add the exponents. 3^36
*June 2, 2014*

**Science Plzz Help**

agree.
*June 2, 2014*

**Algebra**

We cannot graph here. Put various values for x and solve for y. Put these on a scatterplot to graph. I'll start you out. if x = 0, 4y > 20, y > 5.
*June 2, 2014*

**algebra**

Assuming there is no difference between capitals and lower case: When dividing exponents, you subtract their value. x^7 h^9
*June 2, 2014*

**math (?)**

It would help if you proofread your questions before you posted them. No data on shirt. If you mean shoes, (1-.30)45 = ?
*June 2, 2014*

**algebra**

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.
*June 1, 2014*

**Science**

1. A 2. C 3. D 4. B 5. D
*June 1, 2014*

**SCI 207 (?)**

Lacking data. What cycles?
*June 1, 2014*

**Science**

Since this is not my area of expertise, I searched Google under the key words "abiotic factor ecosystem" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=abiotic+factor+ecosystem&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*June 1, 2014*

**biology**

Since this is not my area of expertise, I searched Google under the key words "insulin glycogen homeostasis" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=insulin+glycogen+homeostasis&ie=UTF-8&oe=UTF-8 In the future, you can find...
*May 31, 2014*

**Health insurance (?)**

What is your question?
*May 30, 2014*

**Statistic**

To do the calculations yourself for 3 and 4: Range = highest score - lowest 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 ...
*May 30, 2014*

**Algebra**

-9 -3 + 9 - 7 = -10
*May 30, 2014*

**Algebra**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. (-5)(-8) - (6*6) = 40 - 36 = 4
*May 30, 2014*

**Algebra/I think I did this wrong**

Z = (score-mean)/SD = (180-170)/5 = 2 a. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability between score and mean for Z score. Multiply by 50 ≠ 29 b. Z = (176-170)/5 = 6/5...
*May 30, 2014*

**Simplify Polynomials**

Don't know about "7ft1". Combine like terms. -2x^2 + x + 3
*May 30, 2014*

**Algebra 2**

What are your formulas?
*May 30, 2014*

**bio**

Is the PKU gene represented by P or p? If the latter, C is correct for the last statement. Cannot respond to first two questions, because parental genotypes are not given.
*May 30, 2014*

**Algebra 2**

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.
*May 29, 2014*

**statistics**

https://www.google.com/search?client=safari&rls=en&q=confidence+intervals+inferential+statistics&ie=UTF-8&oe=UTF-8
*May 29, 2014*

Pages: <<Prev | 1 | 2 | 3 | 4 | **5** | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>