Friday

August 26, 2016
Total # Posts: 22,159

**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.
*January 12, 2016*

**Science**

1. Identical twin studies 2. Depends on the type of mutation. 3. eye color
*January 12, 2016*

**Math**

c = 28-a-b = 28-a-(a+3) a+3+(a+3)+10[28-a-(a+3) = 131 Solve for a, then b and c.
*January 12, 2016*

**HELP_ME_PLEASE_VERY FAST**

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.
*January 12, 2016*

**Math**

First and third problems are wrong.
*January 12, 2016*

**algebra**

x/6 + 3/8x = 13 Solve for x, after multiplying equation by 24.
*January 12, 2016*

**STATS**

Z = (score-mean)/SD Insert Z, mean and SD values to solve for scores
*January 12, 2016*

**math**

It would help if you proofread your questions before you posted them. "Rach?" More data needed.
*January 11, 2016*

**Math**

Since this is not my area of expertise, I searched Google under the key words "calculate angles" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=calculate+angles&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
*January 10, 2016*

**English**

In relation to the second question, watch out for a decision trap. http://drdavespsychologypage.homestead.com/Decision_Trap.pdf
*January 10, 2016*

**Statistics**

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 ...
*January 10, 2016*

**math**

Is the 4.5 the radius, diameter or circumference? Same with flowers.
*January 10, 2016*

**math**

3m = 300cm 2m = 200cm Cut-out piece = 250 * 90 = 22,500cm^2 (300*200)-22,500 = remainder Find ratio of cut-out piece to remainder.
*January 10, 2016*

**Math**

right
*January 10, 2016*

**Psychology**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. A
*January 9, 2016*

**Science**

Few fossils? Quality of whatever fossils are found?
*January 8, 2016*

**check my english partial**

1. a However, I am not familiar with the prose selections.
*January 8, 2016*

**math**

7 - 5 = ?
*January 7, 2016*

**Math (?)**

What risers? Cannot copy and paste here.
*January 7, 2016*

**Math**

Multiply the three together to get one number. You can include other prime numbers to get other products. 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...
*January 7, 2016*

**science please help anyone**

We cannot create a digital model here. However, I would reverse the order of calculation, starting with present day at the right.
*January 7, 2016*

**Math**

5 * 3 * 7 = ? 5 * 3 * 7 * 2 = ? Continue on.
*January 7, 2016*

**fourth grade math**

No scatter plot. Cannot copy and paste here.
*January 7, 2016*

**math (?)**

What is the starting point?
*January 7, 2016*

**Biology (?)**

No choices given. Cannot copy and paste here.
*January 7, 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.
*January 7, 2016*

**biology**

Does it have a cell wall?
*January 6, 2016*

**Spanish**

"Hablo" is first person presnt.
*January 6, 2016*

**Art (?)**

You cannot copy and paste here. What piece? What choices?
*January 6, 2016*

**science**

It would not mean much.
*January 5, 2016*

**help**

First, indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Second, we don't know what "you learned about." Lastly, we do not do your homework for you. Although it might take more ...
*January 5, 2016*

**Spanish 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.
*January 5, 2016*

**math**

Do you have typos here? First, a cat cannot walk 2,190 miles in 2 hours. 2,190/2 = 1,095 = 1000 + 90 + 5
*January 5, 2016*

**math (?)**

What do you want us to find?
*January 5, 2016*

**English**

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.
*January 5, 2016*

**Biology (Mitiku)**

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. Since this is not my area of expertise, I searched Google under the key ...
*January 5, 2016*

**Biology (Jerry)**

Since this is not my area of expertise, I searched Google under the key words "acids polar vs. nonpolar" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=acids+polar+vs.+nonpolar&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can ...
*January 5, 2016*

**English**

As an academic paper it is okay. However, if you are depressed and seeking help in committing suicide, it would be much better to get psychological help, such as from a school counselor.
*January 5, 2016*

**Math (?)**

What sets of compatible numbers are you using?
*January 4, 2016*

**Math**

It sounds like a bimodal distribution.
*January 4, 2016*

**algebra**

First, we cannot draw a rectangle on these posts. Second, 5 times x = 5x and 5 times 2 = 10.
*January 4, 2016*

**Biology**

Since this is not my area of expertise, I searched Google under the key words "chromosomal mutation vs point mutation" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=point+vs.+chromosomal+mutation&ie=UTF-8&oe=UTF-8&gws_rd=ssl#q=...
*January 4, 2016*

**statistics (?)**

Total income? We cannot see pie chart. You cannot copy and paste here.
*January 4, 2016*

**math**

$1.82 * 1.15 = ? $1.82 * .95 = ?
*January 3, 2016*

**MATHS**

I assume it is 1/4 of the remainder from the first week, so what she brings home is 1/3 * 3/4 = ?
*January 3, 2016*

**Science Fair**

I would suggest asking your instructor. However, making a hot air balloon and going up in it is a VERY ambitious and somewhat dangerous project.
*January 2, 2016*

**biology**

Since this is not my area of expertise, I searched Google under the key words "carbohydrate,proteins and fats" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=carbohydrate,proteins+and+fats&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the ...
*January 1, 2016*

**Business Math**

A = p(1+rt) = 1632(1+.04*2) = ?
*January 1, 2016*

**Math**

Yes Happy New Year!
*December 31, 2015*

**Happy New Year!**

Same to you!
*December 31, 2015*

**Statistics**

1/32 Happy New Year!
*December 31, 2015*

**psychology**

Agree with Reed, but HAPPY NEW YEAR anyway.
*December 31, 2015*

**Psychology**

Is something wrong with their car?
*December 30, 2015*

**Psychology**

I searched Google under the key words "gender differences in mental ability" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=gender+differences+in+mental+ability&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
*December 30, 2015*

**science**

an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
*December 29, 2015*

**math - probability**

Do not know what f and c indicate. Note that the first half of the alphabet include 3 vowels. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Either-or probabilities are found ...
*December 28, 2015*

**math needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*December 28, 2015*

**Math**

How many hours is the store open? Would any specific employee work more than one day?
*December 28, 2015*

**matrix (?)**

What is your question?
*December 28, 2015*

**stats**

Z = (score-mean)/SD = ([114-1]-125)/6 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.
*December 27, 2015*

**statistics**

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.
*December 26, 2015*

**math**

N = U - 13 S = 2U + 8 U + N + S = 103 Substitute U-13 for N and 2U+8 for S in the third equation and solve for U. Insert that value into the first equations to solve for N and S. Check by putting all values into the third equation.
*December 26, 2015*

**statstics a level s1**

Cannot draw tree diagram on these posts. Probability of picking one of those cards in each of three picks. 20/52 * (20-1)/(52-1) * (20-2)/(52-2) = ?
*December 25, 2015*

**math**

(23.5^2)/64 = ?
*December 25, 2015*

**maths**

What is your question? I assume: 3x^3 - 2x^2 - 9x + 9
*December 25, 2015*

**Human growth**

yes
*December 24, 2015*

**Statistics**

How many squares do you have in your Chi-square?
*December 23, 2015*

**Statistics**

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 = number of cells Look up value in X^2 table in the back of your ...
*December 23, 2015*

**Math**

If the pennant is a right triangle, you only need one. The theorem does not apply, unless you are concerned with the length of sides or hypotenuse.
*December 22, 2015*

**Math**

The Pythagorean Theorem applies only to right triangles. Will your pennant be a right triangle? A pennant is typically an isosceles triangle. Can you construct an isosceles triangle from a group of right triangles?
*December 22, 2015*

**statistics**

A. 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 (.04) and its Z score. Insert Z into above equation and solve for score.
*December 22, 2015*

**math**

w - 1 = b r = w + 2 r + w + b = 28 (w+2)+ w + (w-1) = 28 Solve for w, then r and b.
*December 20, 2015*

**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.
*December 19, 2015*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*December 19, 2015*

**math**

m = 2s (m-10) = 4(s-10) Substitute 2s for m in the second equation and solve for s.
*December 19, 2015*

**Language (?)**

What novel?
*December 18, 2015*

**science**

Mother would have to be BO, so child has a chance of A phenotype. 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 Since hemophilia is an X-linked gene, what is the chance of getting the hemophila gene from ...
*December 18, 2015*

**english**

When Not to Use Commas with Who and Which There is often confusion about when to use commas with who and which. Unfortunately, there is no simple rule. Sometimes there should be commas and sometimes there should not. The rule is: When the information provided by the clause is ...
*December 17, 2015*

**science help**

Shouldn't that be done BEFORE severe weather occurs?
*December 17, 2015*

**Science**

1. d 2. b 3. c 4. b
*December 17, 2015*

**Biology**

No figure. Cannot copy and paste here.
*December 17, 2015*

**Biology**

Right!
*December 17, 2015*

**Biology**

No, acidic is below 7.
*December 17, 2015*

**Statistics**

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.
*December 17, 2015*

**Algebra 1**

He's hungry? Lack Data.
*December 17, 2015*

**math**

5.4/810(converted to feet) = ? 1m = 3.28 feet
*December 17, 2015*

**Math**

No figures shown. Cannot copy and paste here.
*December 17, 2015*

**math**

15/5 = 3 (15-3) + 12 = ?
*December 17, 2015*

**math**

What is your question(s)?
*December 17, 2015*

**Statistics**

Histogram would also be normally distributed. How many modes does a normal distribution have? Do you know the 68-95-99.7 rule? Approximately 68% of scores in normal distribution are within one standard deviation (34% on each side of the mean), 95% within 2 SD, and 99.7% within...
*December 16, 2015*

**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 (.90) and its Z score. Insert data into equation and solve for score.
*December 16, 2015*

**Statistics**

It would help if you proofread your questions before you posted them. Have no data on ovens. 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/...
*December 16, 2015*

**science help PLS**

Although this is not my area of expertise, I would choose larger.
*December 16, 2015*

**science**

http://www.childrensheartinstitute.org/content/blood-flow-diagram.html https://www.google.com/search?q=spine+joints+anatomy&client=safari&rls=en&tbm=isch&imgil=RGwtYIvv8IITYM%253A%253BPeT0NG0OXkL7nM%253Bhttp%25253A%25252F%25252Fwww.agingspinecenter.com%25252Fcontent%...
*December 16, 2015*

**S.S**

No following. Cannot copy and paste here.
*December 16, 2015*

**Math (Statistics)**

(1-.81)21 = ?
*December 14, 2015*

**Science**

Which would be needed for a predator rather than the prey?
*December 14, 2015*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 12/50 * (12-1)/(50-1) * (12-2)/(50-2) = ?
*December 13, 2015*

**probability distribution**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Do you mean "no" red balls or number of red balls?
*December 13, 2015*

**Biology**

Assuming that the DNA changes effect phenotype and/or behavior (some do not), your assumption is correct. No clarification necessary.
*December 13, 2015*