Friday

April 18, 2014

April 18, 2014

Total # Posts: 17,479

**science (?)**

What is a "prac"?

**science**

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

**Math (?)**

We haves no idea of the arrangement, especially the corners.

**math**

Temperature > -20º F

**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 3**

Population is the total group, while the sample is a portion of that total.

**math Standard deviation**

Z = (score-mean)/SD Insert values and calculate.

**math probability**

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.

**math**

360 * .80 = ?

**algebra**

A = 450 - C 70A + 40C = 27750 Substitute 440-C for A in second equation and solve for C. Insert that value into the first equation and solve for A. Check by inserting both values into the second equation.

**home,school &COMMUNITY**

Also, please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you.

**Algebra help PLEASE?**

V = π*r^2*h Insert values and calculate.

**math**

Divide the amount of change by the original amount. (4-12)/12 = ? (20-15)/15 = ?

**Math oops**

3.5y = 10.5 - 2.1 = 8.4 y = 8.4/3.5 = ?

**math**

(76 - 51)/76 = ?

**Math**

7/8(20) = 17.5 1/4x = 17.5 Solve for x.

**math**

What is 1/2 as decimal or percent?

**Math (?)**

Possibly it might signify the volume of a cylinder. Cannot solve without equal sign for an equation. To simplify, multiply the terms.

**Spanish**

With my basic Spanish: How do you want the means of communication to be/function?

**Chem needs help**

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

**math **

We cannot show visual models on the posts. Draw a diagram?

**science HELP ASAP!!!!!!!**

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.

**Algebra**

L = 2W + 3 2L + 2W = 72 Substitute 2W+3 for L in second equation and solve for W. Insert that value into the first equation and solve for L. Check by inserting both values into the second equation.

**psychology**

Agree

**interpersonal communication**

http://drdavespsychologypage.homestead.com/Relationships__Starting_and_Continuing.pdf

**interpersonal communication**

You cannot copy and paste here.

**education (?)**

What business plan? 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.

**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. Percentile rank is the proportion below a particular score. OR… http://davidmlane.com/hyperstat/z_t...

**math**

Mode = most frequently occurring score(s) Median = arrange in order of value, then find middle-most score. 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 sc...

**Dividing decimals**

Move decimal place one to the right for both and then proceed with normal long division.

**Statistics (?)**

Data missing.

**Statistics**

99% = mean ± 2.575 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. To include each end, double proportion.

**SAT prep help**

-2x+5=2-5+2x Put like terms on the same side of the equation by adding 3 and 2x to both sides. 8 = 4x

**science (?)**

It would help greatly to know the context of the term.

**Pys 202**

a case study?

**Geometry**

V = hπr^2 h = V/πr^2 Insert values and solve for h.

**science**

Average about 28 days. Diagram lacking. You cannot copy and paste here.

**math (?)**

No line of best fit. You cannot copy and paste here.

**Biology**

agree

**statistics**

Either-or probabilities are found by adding the individual probabilities. .43 + .14 = ?

**biology**

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

**Math (?)**

Graphs not shown, Cannot copy and paste here.

**math**

C = πd d = 2r In your case: C = 50 * π * 2r Insert values and calculate for C

**Math (?)**

What is "your original set"?

**Statistics**

If "the probability of birth is equal in all months," that means that you would expect 10 students to be born in each month. Would either distribution apply in this case?

**Statistics**

Are the means from the same population or different?

**Science**

Agree

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1. 35 + 50 + (25/5 * 5) - (8+11) = 110 - 19 = 91 2. 24/8 + 31 = 34 3. 3 + 2(7) = 17 4. 5(3) - 16 = 15 - 16 = -1 5. right.

**BIOLOGY**

Not willfully, but random mutation does occur.

**ethics**

I disagree. http://www.utilitarianism.net/singer/by/1972----.htm

**consumer math**

($15,876 * 1.0525) - .1($15,876) = ?

**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**

Volume = height * Base Therefore: V/B = h Insert values and calculate.

**ethics**

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.

**algebra**

Do you mean 5 -(+2)? 5 - (+2) = 5 - 2 = 3

**Algebra**

With 2π factored out… (x^2 + 4x + 4) + (x^2 + 7x + 10) = 2x^2 + 11x + 14 or 2π(2x^2 + 11x + 14)

**math**

81 > n^2 = (-8)^2

**math**

35 + 35 = 70 (?)

**Math**

-6x^2 + 15x

**Math 102**

(30.60-18)/18 = ?

**math**

(8*32) - 52 = ?

**Alegbra**

Substitute 4c for d in first equation and solve for c. Insert that value into the second equation and solve for d. Check by inserting both values into the first equation.

**Math**

15.025

**Psychology**

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. Extraneous variables — other than the independent ...

**math**

C

**Psychology**

Responses consistent over time, places and persons are attributed to one's personality. Consequences to an organism's responses are the key relationship in operant conditioning. Rewarded responses will continue or increase, nonrewarded responses will go to extinction. ...

**health**

http://drdavespsychologypage.homestead.com/AIDS_in_Arizona.pdf

**Maths (?)**

We cannot see the figure. You cannot copy and paste here.

**statistics**

Z = (score-mean)/SD Either use the handout or 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.

**Mathematic**

1000

**math**

4(6+2) - 6 = 26

**Science (?)**

Missing needed data. Cannot copy and paste here.

**algebra**

2L + 2W < 330 L < 90 180 + 2W < 330 2W < 150 W < 75

**math (?)**

What do c and d signify?

**math**

7.5 mm

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. .06x = 9.33 x = 9.33/06 = 155.50

**Math**

5 + .04t < 2 + .10t 3 < .06t t > 3/.06 = 50

**MATH (?)**

How many of each color are in a package?

**math**

(2.50-1.75)M - 40 = 550 .75M = 590 M = 590/.75

**Algebra Readiness**

The previous post is for the square cake. Need more data for the "heart cake."

**Algebra Readiness**

L = W = 8 2W + 2L = Perimeter W * L = area

**behavioral statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities to compare their Z scores (the most common type of standard score).

**Math**

(2*6+3)^2 > 175 15^2 > 175 225 > 175

**Statistics**

Don't have a TI-84 calculator, but.... 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 (.80) related to a Z score. Insert that value into the above equa...

**math**

2 1/3x = 7/3x = 15 x = 6.43 .43 * 7/3 = ?

**math**

5x = beads in necklace 5x + x = 192 Solve for x, then 5x.

**math**

14 - 9 = ?

**probability**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (1-.4)(1-.8)(1-.6) = ?

**Statistics**

It is 99%, sorry for the typo.

**Statistics**

95% = mean ± 2.575 SEm SEm = SD/√n I'll let you do the calculations.

**Science Please HELP!!!**

X-chromsome Now are you reedy for the real thing rather than just practice?

**Genetics**

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.

**ela**

Google each term. 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/.

**business communication (?)**

Do you have alternatives to choose from? You cannot copy and paste here. Having typos (as you have in your subject listing) indicates lack of attention to detail.

**math**

19/5 = x/1.5 Solve for x.

**math**

9.5/2 = x/14 Solve for x.

**Math**

6'4" = 76" 1" = 2.54 cm 76" * 2.54 = ?

**Psychology**

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 searched Google under the key words "power assertion psychology" to get...

**vocab (?)**

It would help if you included the context for these terms.

**Science**

How could you throw a ball, "if inertia didn’t exist?"

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