Tuesday

July 29, 2014

July 29, 2014

Total # Posts: 17,984

**Math**

Can't draw a picture here, but 16 posts will be needed. Remember that the corner posts will each be used for two sides.

**math needs help**

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

**Law**

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

**statistics**

Assuming the sample size is the same, r^2 accounts for the amount of variability explained by r. r^2 = .04 r^2 = .16

**math (?)**

Data missing.

**math**

L = 3W - 40 L * W = 6400 (3W-40) * W = 6400 Solve for W, then L.

**statistics (oops)**

Sorry, mode should be less than 90.

**statistics**

I'm not sure what you are asking. It would help if you proofread your questions before you posted them. Positively skewed? Mode should be greater than 100.

**Science**

Your text must be defining B or the numbers. We do not have that data.

**math**

1500 * .21 = ?

**Psy 270**

Do you want to be a psychologist? If so, what area of psychology interests you? To give some ideas of applications ink one's personal life, this source might help: http://drdavespsychologypage.homestead.com/Line-on-Life-Articles-.html

**science**

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.

**science (?)**

No servings indicated.

**statistics**

With only 13 employees, it would be best to use X^2 (Chi-square) test. Ho: no diference 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 ...

**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 related to the Z score.

**science (CHECK plz)**

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.

**science (check!)**

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.

**algebra**

Multiply out. 2x +20

**sci207**

Since this is not my area of expertise, I searched Google under the key words "water temperature affecting weather" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=water+temperature+effecting+weather&ie=UTF-8&oe=UTF-8 In the future...

**math**

1. 2(2/5) + 1/2 = 4/5 + 1/2 = .8 + .5 = 1.3 = 1 3/10 2. Using the information above, you should be able to do this one yourself.

**Psychology**

Possibly this article might help: http://drdavespsychologypage.homestead.com/Memory__What_Memory_.pdf

**statistics**

It would help if you proofread your questions before you posted them. You only have one value for the young. The independent variable is age, but it would be better if you more specifically defined the age ranges. I hope this helps.

**Technology**

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

**statistics**

You start with a null hypothesis and an alternative hypothesis. You decide what probability you will use to reject your null hypothesis, in other words what is statistically significant. That is also your type I error, the probability of rejecting your null hypothesis, when it...

**Simple Biology**

I am worried whether the majority is only 51% as vs. something like 95%. Besides, how could you test it?

**Technology**

See your later post.

**please help bio**

Since he only has one X chromosome, the allele must be for normal color vision.

**Statistics**

Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n (n = 25) 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 &...

**science**

motor or efferent

**science**

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

**arithmetic**

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.

**math (?)**

Insufficient data. How large is the paper and/or the strips?

**Math**

7 61/1000

**Bar Graphs**

Your preference.

**Math--2question**

Area = 4 π r^2 Volume = 4/3 π r^3

**math**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Unclear. 37.8/103 = .36699 OR Online "^" is used to indicate and exponent, e.g., x^2 = x squared. 37.8/(10^3) = 37.8/1000 = .0378

**maths**

.21/12 = .0175 per tablet 1.50/100 = .015 per tablet (.0175-.015) * 12 = ?

**math**

.375 * (1- 2/3) = ? Change to percentage.

**Algebra (?)**

What is your question?

**Maths**

Profit for each = sales price - cost of production and sales.

**Statistics (?)**

No distribution shown.

**Statistics**

Have cells indicating satisfied/dissatisfied for each group. Calculate column, row and grand totals. 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...

**Algebra II**

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.

**algebra/ Can see I am right**

So far so good, but what about the 241 letter arrangements not allowed?

**I need to know how to work this Maths Problem**

Frist of all, you don't have an equation. Equations have equal signs (=). If you don't know how to find a square root, there might be a table in your textbook. Assuming you haves no typos: -2√62+38 = -2(7.874) + 38 = -15.748 +38 = 22.252 38 - 2√62 ≠ 2...

**Science--check my answers.**

1. Agree 2. Disagree 3. Agree 4. Agree 5. Agree 6. Disagree

**BIOLOGY please help**

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

**Math**

Yes, that would add to give you the smallest prime p.

**Science**

Antibodies?

**Algebra**

10 * 9 * 8 * 7 = ?

**Math (?)**

There are several. What are your choices?

**math**

Since you didn't ask your question, I assume you want the total. 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 = ?

**statistics (?)**

Unable to predict with no more data. I don't even know what a math score of 30 signifies. Do you have choices?

**Maths**

So girls make up 1/3 of group, while boys make up 2/3. 1/3 *40 = 13. 3 rounded to 13 40 - 13 = 27 Do you have typos?

**Math**

Since this is subtraction, older person does not go "on top." Calculate number of days from May 17 thru December 31, then add 365( 2002-1987), then add days from Jan. 1 through October 28.

**Not 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.

**Math**

5 - 2.25 ≥ 2.75

**Pre Algebra**

B, theoretical P(5) one roll = 1/6

**math**

a ≤ 12

**HELP PLEASE !!**

1. Disagree, are they arguing that they are not trapped? 2. See no indication of bursting through door; Mom doesn't sound worried. 3. If Tina is worried about drowning, what does that suggest? 4. Which would include the neighborhood?

**biology**

Look on most diagrams of the eye. Rods and cones Cornea and lens optic nerve

**statistics**

8 * .2 = 1.6 rounded to 2 are married and supervisors. 2/140 = ?

**maths (?)**

Cannot graph here and data is lacking.

**Algebra 1--Please, help me!**

(x-2)(x+2) = 780 x^2 - 4 = 780 x^2 = 784 Solve for x, then x+2 and x-2.

**algebra1**

No

**Science**

Since West is the direction the skates are heading, I would go with 3.

**Science**

I would agree.

**Algebra 2**

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 c...

**biology help**

Cone

**science help**

agree.

**math**

32, when omitted leaves the median = (29+35)/2 = 32.

**Science**

I am unaware of how the direction of travel solely effects friction. What other factors are being considered?

**Science**

The atrium receives the blood, sends it to the ventricle, which pumps it to the body.

**ALGEBRA**

Multiply each by 1.06 to find total cost of each camera. Arrange in order of value. Middle-most score = median The mean = sum of scores/number of scores. Mode = most frequently occurring score. Range = highest score - lowest score. I'll let you do the calculations.

**statistics**

95% = mean ± 1.96 SEm SEm = SD/√n I'll let you calculate and come to your own conclusions.

**Math help**

It would help if you proofread your questions before you posted them. The last term has an exponent sign (^) with no value. Secondly, to evaluate your answer, you need to use parentheses () to better define your terms.

**math**

rectangular.

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/6 * 1/6 = ?

**Human Biology please help**

Hypothalamus?

**Math**

5 black + 10 yellow = 2/3total Are you sure you don't have a typo?

**Statistics**

Definitely experimental, the doctors are not observing what is being done.

**Statistics**

Me too.

**science (?)**

None following. You cannot copy and paste here.

**research paper**

How about the old song title, "Smoke Gets in Your Eyes"?

**math**

I agree.

**science**

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

**statistics**

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.

**aLGEBRA**

Multiply everything by 12x. 15 + 7x = 4 - 2x Transpose. 9x = -11 x = -11/9

**Statistics**

Start with a correlation coefficient.

**math**

With this limited data, best estimate = 30/50 = ?

**math**

f(x) = 3x - 2 = 3(1.5) - 2 = ?

**science**

As indicated in your previous post, Google these concepts.

**science**

Since this is not my area of expertise, I searched Google under the key words "advantages disadvantages of diffusion in chemistry" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=advantages++disadvantages+of+diffusion+in+chemistry&...

**life sciences**

An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results.

**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. Multiply by 93.

**science**

If that happened, there was probably some trauma to the heart, so the organism would die.

**Matth**

16/(18+16+22) = ?

**math**

2.25/12 = ? 3.24/18 = ? The answers to the two equations should lead you to answer the 3 questions.

**math (?)**

It would help if you proofread your questions before you posted them. What is "one 25_ -pound bag"? I assume it is not one 25-pound bag. If it is: 15 * 25 = ?

**math (?)**

The information you need would vary, depending on the type of business decision you wanted to make. What decision concerns you?

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