Tuesday

August 4, 2015

August 4, 2015

Total # Posts: 20,072

**science**

It depends on the results of the experiment. Are the results statistically significant or not? What are your null and alternate hypotheses?
*April 15, 2015*

**Science**

I am assuming you are starting from "your house." No rounding required. 270 - 24 = ?
*April 15, 2015*

**math**

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 (.0401) and its Z score. Insert values in above equation to get SD.
*April 15, 2015*

**math**

OR… just in case your computer crashes, you could use this equation: Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to the Z scores. For d...
*April 15, 2015*

**6th Grade Math**

Sounds good as far as you went, but expensive. However, part of the input is also selecting the number. Make sure the output includes the lemonade coming down the slot, not just remaining in the machine.
*April 15, 2015*

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 20/100 * 19/99 * (98-18)/98 * (97-18)/97 * (96-18)/96 = ?
*April 15, 2015*

**Math**

.90 * .80 = ?
*April 15, 2015*

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. A. .6 * (1-.8) = ? C. .6 * .8 = ? Use similar processes for B and D.
*April 15, 2015*

**Stats**

Ho: M = T Ha: M > T (one-tailed) I do not want to do an F-test to find out if the SDs are equal. 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 ...
*April 15, 2015*

**math**

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 by adding the individual probabilities. Since pr(crash|rain or snow) = .2 and pr(crash|cloudy ...
*April 14, 2015*

**Math**

C + D = 54 therefore C = 54-D 4C + 2D = 122 Substitute 54-D for C in the third equation and solve for D. Insert that value into the second equation to solve for C. Check by putting both values into the third equation.
*April 14, 2015*

**Math**

90km/hr = 55.92 mi/hour
*April 14, 2015*

**Math**

A. (9*15) - (3*7) = ? B. Answer to A * 8/12 to get topsOil volume.
*April 14, 2015*

**math**

Agree.
*April 14, 2015*

**mathematics**

4ab(b+2-4a)
*April 14, 2015*

**Mathematics**

-5m^2
*April 14, 2015*

**Math**

6'5" = 5'17" 5'17" - 2'7" = 3'10"
*April 14, 2015*

**Math**

Convert 7 yds, 1' to 6 yds, 4', then subtract. Multiply yards by 3.
*April 14, 2015*

**Science**

Cannot draw graphs on these posts.
*April 14, 2015*

**geometry**

Cannot draw on these posts.
*April 14, 2015*

**biology**

agree.
*April 13, 2015*

**Statistics**

You have 9 possibilities. Divide that into the number of possibilities without chocolate.
*April 13, 2015*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. A. 7/9 * 2/(9-1) = ? B. 2/9 * (2-1)/9-1) = ? C. Use similar processes for this question.
*April 13, 2015*

**Simple math**

Assuming that the cubes are numbered 1-6, probability is zero. 5 + 0 = 5
*April 13, 2015*

**Pre - CALCULUS**

2y - x = 5 x = 2y-5 Online "^" is used to indicate an exponent, e.g., x^2 = x squared. x^2 + y^2 - 25 = 0 Substitute 2y-5 for x in the third equation and solve for y. Insert that value into the second equation to solve for x. Check by putting both values into the ...
*April 13, 2015*

**Kelly**

Academic goals are the majors or degrees that you seek, while career goals are the jobs you seek. Academic majors can often lead to a wide variety of jobs.
*April 13, 2015*

**Pre Algebra Probability**

5! = 5 factorial = 5*4*3*2*1 = 120
*April 13, 2015*

**math**

What diagram? Cannot copy and paste here.
*April 13, 2015*

**BUS 303 HUMAN RESOURCES MANAGEMENT**

Also, please do not use all capitals. Online it is like SHOUTING. Not only is it rude, but it is harder to understand. Thank you.
*April 13, 2015*

**Algebra 8th grade**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. What is your question? Factor? (y^2 -3y) = y(y-3)
*April 13, 2015*

**genetics**

Also, to be statistically relevant, you need larger samples.
*April 13, 2015*

**English**

Right.
*April 13, 2015*

**Math: stats**

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 "...
*April 12, 2015*

**Math**

What diagram? Cannot copy and paste here.
*April 12, 2015*

**maths**

Cannot draw or model here. c. Volume = 30 * 15 * 10 = ? Divide volume by 6 to get number of boxes per carton.
*April 12, 2015*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. r = 1/2d V = π r^2 h = π (4.3*10^-2)^2 * .44 = ? π = 3.14 Take it from here.
*April 12, 2015*

**math**

What is your question?
*April 12, 2015*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. (6*10^9)/(2*10^6) = 3*10^3 6/2 = 3
*April 12, 2015*

**ALGEBRA**

Lacking data.
*April 12, 2015*

**Science**

What image? Cannot copy and paste here.
*April 12, 2015*

**Math Help**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1/5 = .2 1/5 * 13,500 = 2,700 Either divide 13,500 by 5 or multiply by .2
*April 12, 2015*

**leal aspects of health information**

Since this is not my area of expertise, I searched Google under the key words "fraudulent billing types" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=fraudulent+billing+types&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can ...
*April 12, 2015*

**Math**

1/20 - 1/40 = 1/40
*April 12, 2015*

**Maths**

(1- .83)x = 1870 Solve for x.
*April 12, 2015*

**Math**

No diagram. Cannot copy and paste here.
*April 12, 2015*

**statistics**

Do not have calculator. (a) 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 ...
*April 11, 2015*

**Statistics**

"Studded"? What were their gender scores before segregation?
*April 11, 2015*

**Statistics**

See later post, but use ±.05 for Z score.
*April 11, 2015*

**math**

two-dimensional, months vs. rainfall
*April 11, 2015*

**math**

Total degrees = 360º 2+4+6+8 = 20 Divide 360º by 20, then multiply by various ratios.
*April 11, 2015*

**math**

W * L = 40 L = 40 - W 2L + 2W = 26 Substitute 40-W for L in the third 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. For the last question, try halving one of the dimensions.
*April 11, 2015*

**Math**

You are welcome.
*April 10, 2015*

**Math**

(3.75+.5)(2+.5) - (3.75*2) = m^2 for border. Multiply that answer by $20.
*April 10, 2015*

**maths**

What is your question?
*April 10, 2015*

**statistics**

A only indicates studying 2 out of the seven days.
*April 10, 2015*

**statistics**

Agree.
*April 10, 2015*

**psych**

Disagree.
*April 10, 2015*

**statistics**

Assuming that the margin of 4.0% is for the depositors, at 1.0% depositors = 8 ± 4, while for 3.0%, depositors = 36 ± 4. Is my assumption valid? If so, I disagree.
*April 10, 2015*

**statistics**

Does the nurse know who is in which group? If so, B is correct.
*April 10, 2015*

**biology**

To maintain a balance, you have to sense imbalance, so you can return to the homeostatic state.
*April 10, 2015*

**English**

agree.
*April 9, 2015*

**science**

Since this is not my area of expertise, I searched Google under the key words "biotic and abiotic composition" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=biotic+and+abiotic+composition&ie=UTF-8&oe=UTF-8&gws_rd=ssl#rls=en&q=...
*April 9, 2015*

**math**

x ≥ 3 2x ≥ 6 etc….
*April 9, 2015*

**Math**

L = 2W-5 L * W = 88 Substitute 2W-5 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.
*April 9, 2015*

**math**

Isn't that what I indicated?
*April 9, 2015*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 12 * 3/4 is right.
*April 9, 2015*

**math**

Right.
*April 9, 2015*

**math**

Supplementary angles add up to 180º.
*April 9, 2015*

**algebra**

464 - 215 - 89 + 31 = ?
*April 9, 2015*

**Algebra**

6. x + 3x + 54º = 180º 11. x + 3x = 112 Solve for x.
*April 9, 2015*

**Psychology**

Although I know the theories, I have little or no knowledge of celebrity couples.
*April 9, 2015*

**statistics**

What criterion are you using to compare? If the distribution is relatively normal: 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 between score and mean ...
*April 8, 2015*

**Science**

With your limited data, I would assume that there are no left-handed persons in her lineage.
*April 8, 2015*

**Math**

What letters? You cannot copy and paste here.
*April 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. 3/6 * 2/4 = ?
*April 8, 2015*

**Biology**

Since this is not my area of expertise, I searched Google under the key words "roles restriction enzymes play in transformation" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=roles+restriction+enzymes+play+in+transformation&ie=...
*April 8, 2015*

**Statistic**

Need to know some measure of variability.
*April 8, 2015*

**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.
*April 8, 2015*

**science.......**

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.
*April 7, 2015*

**math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. y = 2x^2 y will have the same value whether the same x value is positive or negative.
*April 7, 2015*

**Math**

100s =12000 Solve for s.
*April 7, 2015*

**psychology**

I searched Google under the key words "psychoanalysis tenets" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=psychoanalysis+tenets&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information you desire more quickly, ...
*April 6, 2015*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (±.025) and its Z score. For 99%, use ±.005. 95% = mean ± Z SEm SEm = SD/√n
*April 5, 2015*

**statistics**

What is your question?
*April 4, 2015*

**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. See your later post.
*April 4, 2015*

**Music**

Since this is not my area of expertise, I searched Google under the key words "how to compose music" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=how+to+compose+music&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
*April 4, 2015*

**project child care**

Not unless you post the information.
*April 3, 2015*

**child development**

Your choice is split-half reliability.
*April 3, 2015*

**age question**

24 + x = 3x Solve for x.
*April 3, 2015*

**variation**

What is your question?
*April 2, 2015*

**math**

x+ y = 33 x + 3y = 81 Subtract first equation from second. 2y = 48 Take it from here.
*April 2, 2015*

**math please help**

No diagram, so we don't have any idea about F. You cannot copy and paste here.
*April 2, 2015*

**fluids**

Since this is not my area of expertise, I searched Google under the key words "benefits of a fluid system" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=benefits+of+a+fluid+system&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you ...
*April 1, 2015*

**math (urgent)**

It would help if you proofread your questions before you posted them. Is 20,000 missing a zero, or does 140,000 have an extra zero?
*April 1, 2015*

**Algebra 2**

A percentile is a measure used indicating the value below which a given percentage of observations in a group of observations fall. Arrange in order of value, lowest to highest. Third value = 30th percentile.
*April 1, 2015*

**Math**

315/1901 = ?
*April 1, 2015*

**prob. & stat.**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 15/24 * 15/24 = ?
*April 1, 2015*

**Algebra Please Help**

if x = 0, then y = 0^2 + (-3) = 0^2 - 3 = ? Do the same with the other x values.
*April 1, 2015*

**Algebra Please Help**

Substitute the x values in the equation and solve to find values of y.
*April 1, 2015*