Wednesday

November 25, 2015
Total # Posts: 20,768

**Math**

b + 5 9/8 = 5 6/8 Subtract 5 9/8 from both sides.
*November 11, 2015*

**Algebra Math**

Welcome.
*November 11, 2015*

**Algebra Math**

L = 3W +2 2L + 2W = 116 Substitute 3W+2 for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.
*November 11, 2015*

**chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 11, 2015*

**math**

Could designate in gallons (above), quarts, and scientific notation.
*November 11, 2015*

**Statistical Math (?)**

More data needed. Also, what do B, P and R signify?
*November 11, 2015*

**math**

You need to post the problem.
*November 11, 2015*

**maths**

1. 1 litre = 1000 ml 2. 2.199, 2.2, 2.22 3. 20 - 2x = 1 Solve for x.
*November 11, 2015*

**statistic concept application**

Lacking data. Mean? Standard Deviation?
*November 11, 2015*

**English**

It could be either, but I would bet on the Park.
*November 10, 2015*

**science help ASAP**

Agree with first but not second.
*November 10, 2015*

**science help**

Disagree. Fighting is cooperative?
*November 10, 2015*

**Math lacking data**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. It would help if you proofread your questions before you posted them.
*November 10, 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.
*November 10, 2015*

**math**

36/4 = ?
*November 10, 2015*

**Statistic**

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 Z = (score-mean)/SEm SEm...
*November 9, 2015*

**math**

Since he always has the dollar bill, the problem then goes to how many ways can he make $.75 out of quarters and dimes. If both have to be used, it would only be 5 dimes and one quarter — one way. However, it could also be done with 3 quarters alone, giving you two ways. ...
*November 9, 2015*

**math -4th grade**

Agree with your answers.
*November 9, 2015*

**4th grade 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.
*November 9, 2015*

**Chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 9, 2015*

**Psychology**

Haven't noticed Ms Sue haters, but even so, your post is unnecessary in inappropriate.
*November 9, 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. Also, it would help if you proofread your questions before you posted them. Data is missing.
*November 9, 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.
*November 9, 2015*

**Statistics**

a) For the population, what about the residents who are not listed in the phone book?
*November 9, 2015*

**Spanish**

¡Que bueno!
*November 9, 2015*

**Spanish**

¡verdad!
*November 9, 2015*

**maths**

Let x = starting sum x - x/2 - x/4 = 1.25 Multiply by 4. 4x - 2x - x = 5
*November 9, 2015*

**Stats**

a. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (±.005) and its Z score. 99% = mean ± Z (SD) = 34 ± 2.575(12) b. Z = (score-mean)/SEm SEm = SD/&#...
*November 9, 2015*

**Allide school**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. (52.5*32.5) - (50*30) = ?
*November 9, 2015*

**math**

a^2 + b^2 = c^2 Insert values to see which fits.
*November 9, 2015*

**psychology**

You would walk 30º to the right, but you will not adapt to the glasses, even trying to correct you perception, until using them for an extended period of time. I hope this helps.
*November 9, 2015*

**psychology**

So, what do YOU think? 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.
*November 9, 2015*

**Comm Tech**

Agree with #1, but not #2. No scatter plot available.
*November 9, 2015*

**health**

Which path? The ovum developing and coming down or the sperm coming up?
*November 8, 2015*

**Statistics and probability**

Getting a score 104 or higher: Z = (score-mean)/SD Getting a mean of 104 or higher: Z = (score-mean)/SEm SEm = SD/√n For both, find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/...
*November 8, 2015*

**math**

a - c
*November 8, 2015*

**statistic**

c) Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.99) and its Z score. Insert data into equation below. Z = (score-mean)/SD d) Using same table, Z = (score-mean)/SEm SEm = ...
*November 7, 2015*

**Statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 3/15 * 7/15 = ?
*November 7, 2015*

**math**

10 * -12 = -120
*November 7, 2015*

**maths**

Cannot draw shapes on these posts.
*November 6, 2015*

**math's**

It would help if you proofread your questions before you posted them. The average of how many numbers? What seven numbers?
*November 5, 2015*

**SCIENCE HELP**

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.
*November 5, 2015*

**Science**

Since this is not my area of expertise, I searched Google under the key words "tools used to collect data in space" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=tools+used+to+collect+data+in+space&ie=UTF-8&oe=UTF-8&gws_rd=ssl In...
*November 5, 2015*

**biology**

Put the bag over the mouth of the beaker and push?
*November 5, 2015*

**6th grade Math**

1/4 * 8/2 = ?
*November 5, 2015*

**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.
*November 5, 2015*

**stat**

What is your question?
*November 5, 2015*

**Math 141**

I assume that one die = 3. The other numbers to get ≤ 7 are 1, 2, 3, 4. Since the other die has six sides, what are the odds?
*November 5, 2015*

**Math 141**

I assume that on of one die = 3. The other numbers to get ≤ 7 are 1, 2, 3, 4. Since the other die has six sides, what are the odds?
*November 5, 2015*

**Zibonele high school**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*November 5, 2015*

**Math**

Correct as far as you went, but what are the probabilities? 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 scores. D) Either-or ...
*November 5, 2015*

**math**

Takeoff, each stop and landing. How many is that?
*November 5, 2015*

**Algebra 2**

$2.50 + $2m = C $2/mile sound very high. Typo?
*November 5, 2015*

**technical drawing**

Cannot draw on these posts.
*November 5, 2015*

**Math**

It would help if you proofread your questions before you posted them. Does V earn > or < F? If >, then V = F + 2.25 If <, then V = F - 2.25 V + F = 14.55 Substitute F ± 2.25 for V in the last equation and solve for F. Insert that value into the first ...
*November 5, 2015*

**Math**

6 - 3 3/8 = 5 8/8 - 3 3/8 = 2 5/8 remaining Since the remaining portion is too small to wrap another present, you would need 3 pieces. However, if you combined two 2 5/8 pieces for one present, you would only need 2 pieces.
*November 4, 2015*

**Marh**

Yes, 1/12 of the total, whatever that is.
*November 4, 2015*

**6th grade Math**

It would help if you proofread your questions before you posted them. From your data, I have no idea how you got a negative number.
*November 4, 2015*

**math**

Something sounds "fishy" here. Three is included in "three or more." I would hope that the lower price is honored.
*November 4, 2015*

**Science**

Since this is not my area of expertise, I searched Google under the key words "natural and artificial selection comparison" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=natural+and+artificial+selection+comparison&ie=UTF-8&oe=UTF...
*November 4, 2015*

**math**

They only have four plays to get the ten yards for a first down. Are the -23 1/3 yards part of this same series of downs? If so, they need the 10 yards plus the 26 1/3 lost. You determine the equation.
*November 4, 2015*

**Statistics**

red/(red plus blue) = ?
*November 4, 2015*

**Math**

30 + .50x = T1 Substitute 52 for x and solve. Do a similar procedure for the other company.
*November 4, 2015*

**math**

If q = standard deviation: 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 for each Z scores distance from the mean. Add.
*November 3, 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.
*November 3, 2015*

**math**

How is this math? TV news gives rapid presentation of short news bursts?
*October 30, 2015*

**Science**

The pH scale is a measure of the hydrogen ion concentration. It spans from 0 to 14 with the middle point (pH 7) being neutral (neither acidic or basic). Any pH number greater than 7 is considered a base and any pH number less than 7 is considered an acid.
*October 30, 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.
*October 30, 2015*

**Science**

Give an example.
*October 30, 2015*

**Statistics**

No scores shown. a) What is "Sturges' formula"? b) 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. ...
*October 30, 2015*

**Math**

Correct except for 5.
*October 29, 2015*

**biology**

Cell membrane
*October 29, 2015*

**science**

What list?
*October 29, 2015*

**Biology**

Goggle each term.
*October 29, 2015*

**Biology**

What ideas?
*October 29, 2015*

**social**

Why are two choices identical?
*October 29, 2015*

**math**

L = 2W-7 L * W = 165 Substitute 2W-7 for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.
*October 29, 2015*

**Math**

Pythagorean Theorem a^2 + b^2 = Hyp^2 16 + 25 ≠ 36 225 + 256 ≠ 625
*October 29, 2015*

**math**

30.6 - 30.6/3 = ?
*October 29, 2015*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability for each Z score. Either-or probabilities are found by adding the individual probabilities.
*October 29, 2015*

**Human Growth**

A refers to monozygotic twins.
*October 29, 2015*

**Statistics HELP!!**

Try human heights and heights of a basketball team.
*October 28, 2015*

**math**

20.00 - 5.50 - 2.60 = ?
*October 28, 2015*

**Math Can Someone explain me about this question**

All you need to saw off is 2' 8" inches to make the board that long. However: 4 yards = 12' 11' 12" - 2' 8" = 9' 4"
*October 28, 2015*

**statistics**

Since this is not my area of expertise, I searched Google under the key words "difference between the coefficient of determination and residuals" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=difference+between+the+coefficient+of...
*October 28, 2015*

**MATH help**

Multiply both sides by 4. x - 20 = 24 Take it from here.
*October 28, 2015*

**math**

Subtract 12 from both sides, then multiply by -1.
*October 28, 2015*

**Math**

Yes, if you math is correct.
*October 28, 2015*

**Science**

A half plus a half = a whole A whole plus a whole gives you what?
*October 28, 2015*

**Statistics**

Either-or probabilities are found by adding the individual probabilities. Do that for failure rates, then subtract from 1.
*October 28, 2015*

**11th grade math**

When multiplying/dividing, exponents are added/subtracted respectively. y^(a-b)
*October 28, 2015*

**11th grade math**

When multiplying/dividing, exponents are added/subtracted respectively. y^a-b
*October 28, 2015*

**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 later post.
*October 28, 2015*

**Pertunia msimango**

It might help to ask this question of your high school/college counselor, who can ask the above and other questions and give you interest tests to help you determine possible avenues.
*October 28, 2015*

**Math**

√20 = 4.4721
*October 28, 2015*

**MAth**

1 and 4 are correct. 2. Add 8 to both sides. 3. Subtract 5 from both sides.
*October 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.
*October 28, 2015*

**Behavioral Statistics Help!**

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.
*October 28, 2015*

**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.
*October 27, 2015*

**Behavioral Statistics**

I answered this previously. We need to get 25% of the obtained scores. You are assuming that the scores ranged close to 1-100. That is typically NOT the case. What if all the scores were above 75? Check with one of the tests taken in any of your classes. What would the range ...
*October 27, 2015*