Saturday

July 26, 2014

July 26, 2014

Total # Posts: 17,977

**Stats**

80% = mean ± 1.28 SD

**statistic help please**

See Post under name of Helen.

**statistic help please**

32/259 = ? I have already answered this second question in a previous post.

**statistic**

I'm not sure about D.

**statistic**

A. 26/52 = ? B. How many queens are there? Divide by 52. C. How many red queens are there? Divide by 52. D. If the face card was replaced, no different from B. If not replaced, and queen drawn, 3/51. Or if queen not drawn, 4/51. Either-or probabilities are found by adding the ...

**Biology**

B https://www.google.com/search?client=safari&rls=en&q=water+to+steam&ie=UTF-8&oe=UTF-8 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/searchtools/.

**Biology**

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

**Science**

Different from what? Each different substance has distinct chemical and physical properties.

**science (?)**

Which wave? https://www.google.com/search?client=safari&rls=en&q=calculate+amplitude+of+a+wave&ie=UTF-8&oe=UTF-8

**Science**

Agree with Jay.

**Math (Partial)**

First two questions and last. Z = (score-mean)/SD SD^2 = variance Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score.

**Statistics (?)**

No data given. 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 ...

**statistics**

95% = mean ± 1.96 SEm SEm = SD/√n

**Science**

Rain forest is only one type of environment and trees are only one group of plants. Organisms either adapt to their environment or die.

**math**

Volume cone = 1/3π(r^2)h Surface area Square pyramid = 2bs+b^2 Volume Rectangular prism = L*b*m

**stat**

I don't know what your "rule of thumb" is, but: a. 95% = mean ± 1.96 SD b. 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 t...

**Phi**

Since this is not my area of expertise, I searched Google under the key words "social contract approach to political theory" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=social+contract+approach+to+political+theory&ie=UTF-8&oe=U...

**human bio please help**

A fibers B Calcium?

**science (?)**

What phenotypes?

**science**

http://simple.wikipedia.org/wiki/Malleability 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/searchtools/.

**math**

Looks good!

**math**

Right!

**Weather needs help**

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

**Science**

These apply to any subject. http://drdavespsychologypage.homestead.com/Be_Here_Now_.pdf http://drdavespsychologypage.homestead.com/Learning_Requirements.pdf http://drdavespsychologypage.homestead.com/Learning_Hints.pdf

**Biology**

Right

**Science... plz help~!(?)**

https://www.google.com/search?client=safari&rls=en&q=popul+Vuh&ie=UTF-8&oe=UTF-8#q=popol+vuh+mayan&rls=en

**Algebra**

(x+y)^2 = x^2 + 2xy + y^2

**Alegbra**

Online "^" is used to indicate and exponent, e.g., x^2 = x squared. When multiplying terms, the exponents are added. (x^5)(x^7) = x^12

**SCIENCE HELP ASAP PLZ! ONLY ONE QUESTION!!!!!!!!**

Since when do social groups provide instincts?

**SCIENCE HELP ASAP PLZ!**

If you have no territory, you have no resources.

**Science**

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

**math**

Find 2 factors in your end terms that will add to give the middle term. 18 = 9*2 = 6*3 This doesn't seem possible with your equation. Do you have a typo?

**Chem needs help**

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

**human biology please help**

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

**algebra**

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. I'll let you do the calculations.

**Liberal Arts Math II**

https://www.google.com/search?client=safari&rls=en&q=snowflake+island+perimeter&ie=UTF-8&oe=UTF-8

**biology PLEASE HELP**

Cell membrane

**human biology need help**

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.

**Physics needs help**

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

**Math**

I would use a bar graph for both.

**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.

**Math - please help**

L = 3s k = s -20 s + 3s + s-20 = 170 Solve for s, then k and L.

**Algebra**

Right!

**Algebra**

1, 2. Okay 3. √0 - 2 = -2… √9 - 2 = 3 - 2 = 1 I'll let you do the other two.

**math**

.06% = .0006

**Please Help Me :( Science: Biology, Genetics!**

1. alleles? 2. mitosis, meiosis 3. incomplete dominance? 4. chromosomes 5. reproduce?

**6th grade math - statistics**

The middle 50% would be from between 3 and 4 to between 8 and 10 (the middle 6 scores). Q1 defines the lowest 25% (0, 1, 3), while Q3 defines the highest 25% (10, 12, 12).

**exam # 013050 (?)**

No data given.

**Alegbra**

x = 5000-y .05x + .08y = 331 Substitute 5000-y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation. Where can I find those interest rates?

**Math (?)**

What is your question?

**math(QUESTION)**

Agree

**psychology**

Since there are so many variables in personal interaction, it might be best to use several recorded requests (same content) from both genders and have doctors respond to them. To make is double blind, a third party would be the only one who knows the gender of the speakers, ex...

**operations and supply**

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

**statistics**

I'm not sure what you might be asking. 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.

**algebra**

Cannot copy and paste here.

**algebra (?)**

No drawing seen. Cannot copy and paste here.

**Statistics**

Is that value the Z score or the probability? Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.095) and its Z score.

**Child Care**

Here are some methods for learning this, but I agree the Pre-K is probably too young for them to absorb the lesson. http://drdavespsychologypage.homestead.com/Prejudice__Us_vs_Them.pdf http://drdavespsychologypage.homestead.com/Prejujdice__Causes_and_Solutions.pdf http://drdav...

**Statistics**

The mean serves as a fulcrum or balance point for a distribution. Therefore the difference from 30 must be the same on both sides. A wide variation of values could fit both situations. However, in the second situation, all scores could be 30.

**math**

40 * $7.60 = ?

**Algebra 1**

Assuming that there is no door or the door is painted as part of the wall: Ceiling = 9 by 7 = ? Opposite walls = 2(8*7) + 2(8*9) = ? Combine all of above and divide by 275. Any fraction would be left over.

**Algebra 1**

There are 89 two-digit numbers (10-99). The tens digits are higher in 10, 20, 21, 30, 31, 32 etc. Count them up.

**Algebra 1**

Since only the middle group have iPhones, 12%.

**Math**

Online "^" is used to indicate and exponent, e.g., x^2 = x squared. f(x) = 2x^2 – 3 = 2*2*2 - 3 = ?

**Statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 3/8 * 3/8 = ? 3/8 * (3-1)/(8-1) = ?

**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. OR… http://davidmlane.com/hyperstat/z_table.html

**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.

**math**

y = (9 * 11 * 11) + 9 = ?

**Science**

It's a start, but I will let you elaborate it.

**Science**

Travel at miles per hour, feet per second or meters per minute? If you have a value of ten for each, they would be distinctively different.

**Statistics**

If the experiment involves two independent variables, the possibility of an interaction between the variables can be measured.

**Algebra word problem**

(7*6) - 2^2π = ?

**Algebra**

420 + .07(420)x > 552 + .04(552)x Solve for x.

**Algebra**

(6 * 9) - π4^2 = ?

**Asking For Your Opinion:**

"I personally don't like how the language sounds and its mechanics." That is what you will learn by taking the courses.

**Asking For Your Opinion:**

Consider what language — other than English — that you would be most likely to use. If that is French, go for it.

**biology**

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

**Science**

https://www.google.com/search?client=safari&rls=en&q=tiger+quolls+habitat&ie=UTF-8&oe=UTF-8

**mathematics.**

1/4

**math**

(6-4.5)/4.5 = ?

**math**

Check = -$8.98 Deposit = +$8.98 Difference between the two: $8.98 - (-$8.98) = ?

**Algebra**

(x-7y)(x+3y)

**prealgebra**

V=πr^2h 525 = 7πr^2 Insert the value you want for π (pi), calculate r, then double that to find diameter.

**Algebra**

Find factors of -28 that will add to -3.

**science**

Dominant traits will perpetuate, while recessives may not.

**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. Different names will not make it speedier either.

**math**

(x-5)(x-3) = 0 x = 5,3

**Math**

1/3 + 5/6 = 2/6 + 5/6 = 7/6 = 1 1/6

**Math**

If the triangle is equilateral, then: 5x - 7 = 2x + 5 Solve for x.

**MAT-134 Math XL**

9x^4(x^2-7x+4)

**Science**

mitosis

**Math 100**

Isn't gross sales identical to plan B? 12(2400) + .09(2400)12 > 32000

**math 100**

2x>3x-40 An inequality is treated just like an equation, except that multiplying/dividing by a negative value reverses the carat (< to >). -x > -40 x < 40

**Biology -Genetics**

False, they are also found in all body cells, except only the males have Y.

**math**

3/7 three chances out of seven

**Math**

You are welcome!

**Math**

a. (1 - .25) 10 = x b. 1.25x = 201 Solve for x.

**Spanish**

Qué

**Science**

What about spiral shaped?

**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. See your later post.

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