Thursday

February 11, 2016
Total # Posts: 21,179

**College/Career Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 5/18 * 4/(18-1) = ? Use same method for P(C then B)
*October 14, 2015*

**College/Career Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 5/18 * 4/(18-1) = ? Use same method for P(C then B)
*October 14, 2015*

**math statistics**

Z = (score-mean)/SD Which Z scores are the greatest?
*October 14, 2015*

**Math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Is that what you want to indicate?
*October 14, 2015*

**maths**

x = rs10, y = rs5 x + 1 = y 10x + 5y = 80 Substitute x+1 for y in the second equation and solve for x. Insert that value into the first equation to solve for y. Check by putting both values into the second equation.
*October 14, 2015*

**maths**

x = present age x +12 = 3(x-4) Solve for x.
*October 14, 2015*

**maths**

a = f - 32 a-4 = 1/5(f-4) Substitute f-32 for a in the second equation and solve for a. Insert that value into the first equation to solve for f. Check by putting both values into the second equation.
*October 14, 2015*

**Statistics**

Z = (sample-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.
*October 14, 2015*

**Math**

50 + 1.15x = 2.50x Solve for x.
*October 13, 2015*

**Math**

5 - 16/10 = 5 - 1.6 = ?
*October 13, 2015*

**maths**

1 - 5/12 - 5/12 = ?
*October 13, 2015*

**algebra**

Multiply both sides by e/3.
*October 13, 2015*

**Statistics**

See previous post.
*October 13, 2015*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.65) and its Z score.
*October 13, 2015*

**Statistics**

You are looking for ± .175 on the table.
*October 13, 2015*

**Statistics**

Once you find Z = .44, what are you looking for?
*October 13, 2015*

**college algebra**

What is your question?
*October 13, 2015*

**Math**

(9 * 58 1/3)/(8 1/3) = ?
*October 12, 2015*

**math (stats)**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (± .295) and the Z scores.
*October 12, 2015*

**Science Urgent😖😖😖**

Now you have it!
*October 12, 2015*

**Science Urgent😖😖😖**

disagree.
*October 12, 2015*

**maths**

360 * 12 = Cost 270 * 15 = Income (270*15)/(360*12) = ?
*October 12, 2015*

**Pre-algebra**

x = 2, y = -5 Lower right
*October 12, 2015*

**Multi Cultural Psychology**

I disagree. A "change" would indicate a difference threshold.
*October 11, 2015*

**Stats**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Both = .10 * .10 = ? "at least one" indicates either one or both. One = .10 * (1-.10) = ? Either-or probabilities are ...
*October 11, 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 11, 2015*

**business**

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 11, 2015*

**business**

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 11, 2015*

**human resources**

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 11, 2015*

**maths**

8/3 = x/2.5 Solve for x.
*October 11, 2015*

**Science/math**

Agree.
*October 11, 2015*

**Math-Sorry I had a mistake in the first problem.**

1. agree 2. agree 3. drug = independent 4. agree
*October 10, 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 10, 2015*

**Probability i need help**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. a. 25/45 * 20/25 = ? b. 25/45 * 15/25 = ? or 20/45 * 20/25 = ? Either-or probabilities are found by adding the individual ...
*October 10, 2015*

**algebra**

P/9 - 15 What is your question?
*October 10, 2015*

**Math / Statistics**

Yes, if you are using P = .05 as level of significance. However, no, if you are using P = .01.
*October 9, 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. However, I will give you a start. If you are generalizing to all college students, they ...
*October 9, 2015*

**Math**

(x+2) + 9 + x + 9 = 50 Solve for x.
*October 9, 2015*

**bio**

No following dilutions.
*October 9, 2015*

**Spanish**

Both seem right to me. Why do you think the answers are wrong?
*October 9, 2015*

**statistics**

A percentile (or a centile) is a measure used in statistics indicating the value below which a given percentage of observations in a group of observations fall.
*October 9, 2015*

**science**

It would help if you proofread your questions before you posted them. Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. f = 1.5(what?) * 10^...
*October 9, 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.
*October 9, 2015*

**science**

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

**Algebra**

x = 3y + 4 4x - 5y = 32 - y Substitute 3y+4 for x in the second equation and solve for y. Insert that value into the first equation to solve for x. Check by putting both values into the second equation.
*October 8, 2015*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Out of the 52 cards there are 4 kings, 4 Queens, 12 face cards, 13 diamonds and 4 aces. 1. 4/52 * 4/52 = ? 5. 13/52 * 4/52 = ? ...
*October 8, 2015*

**Algebra 2**

x = 18 - y .25x + .02y = 2.20 Substitute 18-y for x in the second equation and solve for y. Insert that value into the first equation to solve for x. Check by putting both values into the second equation.
*October 8, 2015*

**math**

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. What tools are available?
*October 8, 2015*

**Math**

2L = 2000 mL 2000/8 = ?
*October 8, 2015*

**Math**

Z = (sample-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 each Z score.
*October 8, 2015*

**science**

...properties? disagree.
*October 8, 2015*

**math**

(34,868-34,300)/(12+17) = ?
*October 8, 2015*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. When multiplying/dividing numbers with exponents, the exponents are added/subtracted respectively.
*October 8, 2015*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/6 * 1/2 = ?
*October 8, 2015*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 6/11 * (6-1)/(11-1) * (6-2)/(11-2) = ?
*October 8, 2015*

**Math**

Insert each of the x values into the equation and solve for y.
*October 8, 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. What is your question?
*October 8, 2015*

**health**

I don't agree with the statement. Is that what you wanted to know?
*October 8, 2015*

**math**

Agree
*October 8, 2015*

**Math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. When multiplying/dividing, the exponents are added/subtracted respectively.
*October 8, 2015*

**Biology**

Increase
*October 8, 2015*

**math**

(9/3) by (15/3)
*October 8, 2015*

**math**

.75x = x - 41 Solve for x.
*October 8, 2015*

**Math**

1 - 1/4 - 2/5 - 1/10 = 1 - 5/20 - 8/20 - 2/20 = ?
*October 7, 2015*

**Math**

FMFMFMFMF As long as you don't care which specific males or females occupy a space, one.
*October 7, 2015*

**math**

4 * 3 * 4 * 3 = ?
*October 7, 2015*

**algebra**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. When multiplying/dividing numbers, the exponents are added/subtracted respectively. (2.8*...
*October 7, 2015*

**Math**

60/5 = x/7 Solve for x.
*October 7, 2015*

**algebra**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 35^2 * 30 = ? 35 * 2 * 30 = ? 35/2 * 30 = ? Do you have typos?
*October 7, 2015*

**algebra**

17/9, √6, √15, √30, 3^3
*October 7, 2015*

**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 ...
*October 7, 2015*

**Algebra**

A. Substitute .095 for .10 B. Substitute $1500 for $1000
*October 7, 2015*

**algebra**

M = 2T -7 M + T = 137 Substitute 2T-7 for M in the second equation and solve for T. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.
*October 7, 2015*

**Math**

100,000
*October 7, 2015*

**Math**

1 2/7x = 9/7x = 54 Solve for x.
*October 7, 2015*

**HELP SCIENCE ASAP**

I'll start you out. They are all animals with backbones. Do you think you can find differences?
*October 7, 2015*

**science**

What do you think the backbone would do to the caudal fin?
*October 7, 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.
*October 7, 2015*

**backbones**

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 7, 2015*

**Probability help**

The possible scores are 7-0 6-1 5-2 4-3 You should be able to figure it from this.
*October 7, 2015*

**math Diana**

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. 4 times the cost per T-shirt.
*October 7, 2015*

**math Brown**

I have no idea concerning what your numbers signify. More data needed.
*October 7, 2015*

**Middle School Math**

What are your options?
*October 7, 2015*

**Science**

It would help if you indicated answer with the question. 1. Disagree 2. agree 3. disagree 4. disagree 5. agree
*October 7, 2015*

**Math**

a. 12/52 b. 1 -12/52
*October 7, 2015*

**math**

Let x = daughter's age. 3x - x = 36 Solve for x.
*October 7, 2015*

**science**

Cellular respiration is the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.
*October 7, 2015*

**Gr.11 Biology**

One is either BBss or Bass; the other is aaRs or aaRR. Which combination would always give a Black coat and only sometimes a smooth coat?
*October 6, 2015*

**Math**

What table?
*October 6, 2015*

**Match**

(9/40)/(1/5) * 3/8 = Dividing by a fraction is the same as multiplying by its inverse. (9/40) * 5 * 3/8 = ? Carry on.
*October 6, 2015*

**Math**

1.32 * 10^-7 or 13.2 * 10^-8
*October 6, 2015*

**Algebra**

3 7/12 + (-2 4/5) = 43/12 - 14/5 Change to common denominator and subtract.
*October 6, 2015*

**Algebra**

L = 2W + 2 2W + 2L = 28 Substitute 2W+2 for L in the second equation and solve for W.
*October 6, 2015*

**Science**

It would help if you proofread your questions before you posted them. For several questions, we have no idea what the letters indicate.
*October 6, 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.
*October 6, 2015*

**math**

1) A = $15.37/10 = $1.54/bar B = $15.35/12 = ? 2) A = $1.54/2.1 = ? B = ? 3) From these calculations, you can determine better buy.
*October 6, 2015*

**math**

1) OC = $10/3.5 = ? TT = $1.25 * 2 = ? 3) $.05 * 60 = ? Compare and explain.
*October 6, 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 (.46) and its Z score. Insert data into above equations and calculate.
*October 6, 2015*

**Statistics**

Use same process as shown in following post.
*October 6, 2015*