Thursday

December 8, 2016
Total # Posts: 22,769

**Literature (?)**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. What book/story does this relate to?

*May 25, 2016*

**Chemistry needs help**

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

*May 24, 2016*

**my son's math help please**

It doesn't matter how many slices. 2/3 of a cake is larger than 1/3 of a same-sized cake.

*May 24, 2016*

**English**

Don't know the story, but Holmes is noted for his careful and scientific solutions.

*May 24, 2016*

**Math**

5280 * .2 = ?

*May 24, 2016*

**Maths**

It would help if you proofread your questions before you posted them. From your data, it could be 863, 881, 845, 827 or 809.

*May 24, 2016*

**statistics**

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 "...

*May 24, 2016*

**Math**

Average = mean = sum of scores/number of scores I'll let you do the calculations.

*May 23, 2016*

**ALGEBRA**

It would help if you proofread your questions before you posted them. Where did you get 3/11? From your data, I would get 1/5(letters) * 1/2(coin) = 1/10

*May 23, 2016*

**pre algebra**

agree

*May 23, 2016*

**algebra (?)**

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

*May 23, 2016*

**Geometry**

Circumference = 2πr

*May 23, 2016*

**algebra**

10.5x = 7.5x + 30 Solve for x, then insert into one of the two equations to find y.

*May 23, 2016*

**math**

1. disagree, when dividing, exponents are subtracted. 2. disagree, when dividing, exponents are subtracted. 3. disagree, what is 4^-2? 4. disagree, anything to the Zero power = 1.

*May 23, 2016*

**math**

What are your answers? 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. When multiplying/dividing, exponents are added/subtracted respectively.

*May 23, 2016*

**Math**

Can get 7 with 4,3 or 3,4 or 5,2 or 2,5 or 6,1 or 1,6 out of 36 possibilities = 6/36 Use the same logic for above or below 7.

*May 23, 2016*

**Math**

7.5 gallons/cubic foot Convert to feet. V = 18 * 8 * 12 = 1.5 * 2/3 * ! = ?

*May 23, 2016*

**Maths**

M = 3D M+5 = 2.5(D+5) Substitute 3D for M in the second equation and solve for D. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.

*May 23, 2016*

**Math**

8/44 = ?

*May 23, 2016*

**Math**

5/12x = 25 Solve for x. Subtract 25 from x. He will not have any chickens after 3 months.

*May 23, 2016*

**science (?)**

What plants? Biological categories? https://www.google.com/search?client=safari&rls=en&q=plant+classification+chart&ie=UTF-8&oe=UTF-8&gfe_rd=ssl&ei=4y5DV43PBOSD8QfJ8YbYBg

*May 23, 2016*

**Math (?)**

No figures. Cannot copy and paste here.

*May 22, 2016*

**Math**

Or you could try it this way. P-4 = A 6A = 4P Substitute P-4 for A in the second equation and solve for P. However, something seems askew here. Typos?

*May 22, 2016*

**Math**

6A = 4P A = 4/6P = 1/3P P = A + 4 Substitute P/3 for A in the third equation and solve for P.

*May 22, 2016*

**math**

N = 6E

*May 22, 2016*

**maths**

Cannot graph here.

*May 22, 2016*

**Science**

Since this is not my area of expertise, I searched Google under the key words "What develops from the Allantois" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=What+develops+from+the+Allantois&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the ...

*May 22, 2016*

**Biology**

What are your answers? 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.

*May 21, 2016*

**math**

1543 = 16t^2 Divide both sides by 16 and then get square root.

*May 21, 2016*

**Math**

To get product (one negative) of -36, can have 18,2 or 9,4 or 3,12. 12 - (-3) = 15

*May 21, 2016*

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. a. 1/3 * 1/3 = ? b. increase, 1/2 * 1/2 = ?

*May 21, 2016*

**math**

36,336 and 63,363

*May 20, 2016*

**Physics needs help**

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

*May 20, 2016*

**math**

D = L - 28 1/3L = 4/5D Substitute L-28 for D in the second equation and solve for L.

*May 20, 2016*

**Math**

I didn't even know there were "12th grade admission exams" when I was teaching. The content is likely to vary with the school district.

*May 20, 2016*

**Statistics**

Z = (score-mean)/SD A,B. 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. Multiply by 100. C. Use same table to find Z for .02. Insert in above equation...

*May 20, 2016*

**find the number**

What is your answer? 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.

*May 20, 2016*

**Algebra**

I will not even get into the math. It would help if you proofread your questions before you posted them. First, you say "summarize it in one-two paragraphs," but you have four. "each country’s payroll" More than one country? Your lack of comma use is ...

*May 20, 2016*

**Business Communication**

Are company databases external?

*May 20, 2016*

**Business Communication**

Even with the errors in capitalization and punctuation, I find it readable, a. However, I agree with Writeacher that your need to avoid developing sloppy habits for business communications.

*May 20, 2016*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1. What is x*x? 2. What is -3m*8? 3. Agree. 4. What is 5b*6B? 5b*10?

*May 20, 2016*

**math**

1. Disagree. 2. disagree. 3. disagree. 4. disagree.

*May 20, 2016*

**Math (?)**

No picture. You cannot copy and paste here.

*May 20, 2016*

**Algebra(?)**

Need more data. Typos? ABCD?

*May 20, 2016*

**Pre algebra**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/2 * 1/6 = ?

*May 20, 2016*

**Geometry**

Pythagorean Theorem a^2 + b^2 = L^2 24^2 + 10^2 = L^2

*May 20, 2016*

**Math/ Ratios (oooops)**

I'm sorry. That was past tense, "did." If so, add A and H.

*May 20, 2016*

**Math/ Ratios**

A = H (A-23)/(H-7) = 3/4 Substitute H for A in the second equation and solve for H. Insert that value into the first equation to solve for A. Add (A-23) and (H-7).

*May 20, 2016*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 2*2*2 ≠ 12 However, unless you have more typos, I get 5 too.

*May 20, 2016*

**atlantic high**

Pythagorean Theorem a^2 + b^2 = c^2 a^2 + 4^2 = 8.5^2 Solve for a.

*May 20, 2016*

**Math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 4(2/4) = 2 2*4 = ?

*May 20, 2016*

**MAth**

Add 3.6 to both sides and divide by .9 to solve for x.

*May 20, 2016*

**science**

What are your choices? Digest? Eat? Consume?

*May 19, 2016*

**math**

1.06x = 42.40 I get 40 too.

*May 19, 2016*

**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.

*May 19, 2016*

**statistics (?)**

What does X stand for? If x is a score: Z = (score-mean)/SD

*May 19, 2016*

**Math**

P = 2L + 2W

*May 19, 2016*

**Physical Education: Just checkin' if they're right**

Free style? Agree with 300.

*May 19, 2016*

**maths**

C = 2πr = 2*3.14*(30/2) (C * 33.3)/100 = m traveled

*May 19, 2016*

**Math**

R = 25 - W 10R - 2W = 202 Substitute 25-W for R in the second equation and solve for W. Insert that value into the first equation to solve for R. Check by putting both values into the second equation.

*May 19, 2016*

**Math (check my work)**

Complementary means they add up to 90 degrees. (x+13) + (2x+23) = 90

*May 19, 2016*

**MATH PLZ HELP**

7. Disagree. 8. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 4/10 * 2/10 = ? 9. Correct 10. P(heads) = 1/2 P(<5) = P(4 or 3 or 2 or 1) Either-or probabilities are found ...

*May 19, 2016*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. assuming you want price per gallon: 10.75 * 12/128 = 1.008 gallon = $15.65, but $15.53 is the closest.

*May 19, 2016*

**math**

Either-or probabilities are found by adding the individual probabilities. P(<4) = P(3 or 2 or 1) = 1/6 + 1/6 + 1/6 = ?

*May 19, 2016*

**Stuck in a Question**

Does the definition sound uncertain? Critical?

*May 19, 2016*

**algebra II**

Q = 120 - D .25Q + .10D = 19.05 Substitute 120-D for Q in the second equation and solve for D. Insert that value into the first equation to solve for Q. Check by putting both values into the second equation.

*May 19, 2016*

**Languge arts (?)**

What is a "tang town"?

*May 19, 2016*

**math !**

Welcome

*May 19, 2016*

**math !**

1) 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. 2) not an inequality. 60/15 = 4 3) anything < 14 ...

*May 19, 2016*

**math**

75/1.5 = 50 mph 325/50 = ?

*May 19, 2016*

**geometry**

the first two are correct, but I can't answer the following because the figures are not given.

*May 19, 2016*

**Artificial Intelligence**

If B is pardoned, either A or C will be executed, 1 out of 2.

*May 19, 2016*

**Science (?)**

What are your choices? Minerals?

*May 19, 2016*

**math**

It would help if you proofread your questions before you posted them. "1 cm : 0.5 cm"?

*May 18, 2016*

**Language arts**

No need to correct.

*May 18, 2016*

**Math (?)**

No diagram.

*May 18, 2016*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Received placebo (1-.80) = .20 Showed improvement (1-.62) = .38

*May 18, 2016*

**maths geometry (?)**

No angle shown. Cannot copy and paste here.

*May 18, 2016*

**Math**

How can you "toss three coins and get one head and one tail"?

*May 18, 2016*

**math**

Cannot graph here. I will use substitution. l = k + 150 l + k = 900 Substitute k+150 for l in the second equation and solve for k. Insert that value into the first equation to solve for l. Check by putting both values into the second equation.

*May 18, 2016*

**Math**

V (round) = π(r^2)h V Rectangular = 6*9*2 A (round-bottom) = 2πrh + πr^2 A (rect.-bottom) = 6*9 + 2*2*9 + 2*2*6

*May 18, 2016*

**Spanish**

1. right 2. wrong 3. right 4. wrong 5. right 6. wrong 7. DK 8. DK 9. right

*May 18, 2016*

**Math**

V = π(r^2)h *3 = ?

*May 18, 2016*

**math**

To compare more easily, change to decimals. 1/4, 1/3, 2/3, 5/7 = .25, .33, .67, .71

*May 18, 2016*

**math (?)**

What is the original distribution?

*May 18, 2016*

**math for IT(?)**

Need data. What is the distribution?

*May 18, 2016*

**Math (Anon.)**

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. Second, there are no figures. You cannot copy and paste here.

*May 18, 2016*

**Math**

S = E 2S = 2E = E - 4 + 40

*May 18, 2016*

**Math(?)**

No table. Cannot copy and paste here.

*May 18, 2016*

**statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.18) and its Z score. Z = (score-mean)/SD

*May 18, 2016*

**biology**

Use a Punnett Square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl

*May 17, 2016*

**math**

W = 450 - C 280C + 125W = 102,750 Substitute 450-C for W in the second equation and solve for C.

*May 17, 2016*

**math**

J = 200/B J-5 = 3B - 4 Substitute 200/B for J in the second equation and solve for B. Insert that value into the first equation to solve for J. Check by putting both values into the second equation.

*May 17, 2016*

**maditsi(?)**

Which offender? What career?

*May 17, 2016*

**Biology**

The sweat loses salt along with fluid, so the person should take water along with the salt tablet.

*May 17, 2016*

**math**

Median = 50th percentile, middle score in value Mean = ∑x/n = sum of scores/number of scores

*May 17, 2016*

**algebra 2b**

99% = mean ± Z SEm SEm = SD/√n

*May 17, 2016*

**math (?)**

How are "pints" awarded?

*May 17, 2016*

**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.

*May 17, 2016*

**Stat**

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 cells Look up value in X^2 table in the back of your textbook.

*May 16, 2016*