Thursday

February 23, 2017
Total # Posts: 23,035

**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.

*April 24, 2016*

**statistics**

4/5^17

*April 24, 2016*

**Science**

Something that allows a current to flow through it. A person who leads an orchestra.

*April 24, 2016*

**math**

To find it, just look at it. If you are asking for probabilities: even number = 1/2 >6 = 7 or 8, each = 1/8 Either-or probabilities are found by adding the individual probabilities.

*April 23, 2016*

**Math**

Put the value to zero for each one in the equation.

*April 23, 2016*

**Math**

Good!

*April 23, 2016*

**science**

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

*April 23, 2016*

**science (?)**

What is your question?

*April 22, 2016*

**Stat**

a. Either-or probabilities are found by adding the individual 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. Add the two. b. If the events ...

*April 22, 2016*

**science**

Since this is not my area of expertise, I searched Google under the key words "titanium reacts with oxygen" to get these possible sources: https://search.yahoo.com/yhs/search?p=titanium+reacts+with+oxygen&ei=UTF-8&hspart=mozilla&hsimp=yhs-002 In the future, you can ...

*April 22, 2016*

**Math: Statistics**

It would depend on what level of significance you are using. Typically it is P ≤ .05. If you are using this cut-off point and the level you found was .061, you should say that the relationship was a chance one.

*April 22, 2016*

**math (?)**

You do not indicate how length is related to either width or height or the volume.

*April 22, 2016*

**Math- I'd really appreciate it if you could help!!**

We would appreciate it if you could state the problem without all the dollar signs ($).

*April 21, 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. Also post with the same name. See your later post.

*April 21, 2016*

**mathes**

How do you define "under age"… less than the mean? Mean = sum of scores/number of scores I'll let you do the calculations.

*April 21, 2016*

**STAT**

99% = mean ± Z (SEm) SEm = SD/√n Z for ±.005 = 2.575 Calculate.

*April 21, 2016*

**mathematics**

Lacking data. What is its shape?

*April 21, 2016*

**Statistical work**

Z = (score-mean)/SD Use table In back of text labeled area under normal distribution. C. Either-or probabilities found by adding individual probabilities. D,E. Both probabilities found by multiplying individual probabilities.

*April 21, 2016*

**Stat HW for.**

1b. 1/4 = .25 Probability of both found by multiplying individual probabilities. E. .5 * (1-.25) = ?

*April 21, 2016*

**Statistics**

Z = (mean-mean)/SEm SEm = SD/sqrt n Use table in back of text labeled area under normal distribution.

*April 21, 2016*

**Statistical concept 68-95-99.7**

Don't repeat posts. It wastes our time responding to them. See your later post.

*April 21, 2016*

**Maths!**

Lacking data. How many colors/marbles?

*April 21, 2016*

**Stat**

Z = (score-mean)/SD Use table labeled area under normal distribution in the back of your text. Either-or probabilities found by adding individual probabilities. Both probabilities found by multiplying individual probabilities.

*April 21, 2016*

**3rd grade math**

Yes

*April 20, 2016*

**MATH**

A more exact answer to cups = 5/(5+1+3+2) = 5 /11 = .45

*April 20, 2016*

**MATH**

3/(6+1+2+3) = ?

*April 20, 2016*

**MATH!**

Boys< 30-16

*April 20, 2016*

**MATH**

Without the outlier, the mean (which functions as a balance point) would be lower.

*April 20, 2016*

**math**

2/5 * 150 = ?

*April 20, 2016*

**Math**

54/(7+2) = 6 Multiply the 7 and 2 by 6.

*April 20, 2016*

**Math**

See your later post.

*April 20, 2016*

**Math**

Second and third choices are correct. The correlation would only show straight line if there was perfect predictability (+1.00) for the positive trend.

*April 20, 2016*

**math**

2 * 3= ? 10 * 15 = ?

*April 20, 2016*

**stats**

Z = (52-50)/SEm SEm = SD/sqrt n Look up Z in table in back of your text labeled area under normal distribution.

*April 20, 2016*

**math**

Why do you divide the width by 4? Is That because the length is 1/4W?

*April 20, 2016*

**math**

You do not state relationship between width and length.

*April 20, 2016*

**Maths**

What is your question?

*April 20, 2016*

**Math**

Probability of 2 or more independent events occurring is found by multiplying the individual events Assuming replacement, P(both) = .08 * .08 At least one = one or two. Either-or probabilities are found by adding the individual probabilities. P(one) = .08 * .92 P(both) shown ...

*April 19, 2016*

**math**

Let X = tens and y = twenties X = 7 - y 10 X + 20 y = 100 Substitute 7-y for X in the second equation and solve for y, then use first equation to find x.

*April 19, 2016*

**math help pls pls pls**

0 no correlation

*April 19, 2016*

**math**

5/(30+12+5)=?

*April 19, 2016*

**MaThS LITERACY; GEOGRAPHY;TOURISM AND ECONOMIC**

Consult with your school counselor,who can help you estimate your interests and abilities and the occupations they relate to.

*April 19, 2016*

**Algebra**

P.S. It is better to indicate specific topic in subject space to get a tutor who knows the subject. You lucked out this time.

*April 19, 2016*

**School**

B = 3C 2B + 4C = 30 Substitute 3C for B in the second equation to solve for C, then insert value in the first equation to find B.

*April 19, 2016*

**math**

(1-.10)X = 36 Solve for x.

*April 19, 2016*

**math**

2*24*2 minutes less.

*April 19, 2016*

**Math**

Cannot drag on these posts.

*April 18, 2016*

**math**

1/2 + 1/6 = 6/12 + 2/12 = 8/12 = 2/3 Neither do I. Probably a typo in the answer key.

*April 18, 2016*

**Maths**

(4 * 2) +1 = 9

*April 18, 2016*

**Math needs help**

Indicate specific topic so tutor with the right knowledge will respond.

*April 18, 2016*

**Math**

(12 - 7)/12 = ?

*April 18, 2016*

**English**

What is your question?

*April 18, 2016*

**English**

Either

*April 17, 2016*

**Bio**

Haploid

*April 17, 2016*

**Scince**

What are your choices?

*April 17, 2016*

**maths littercy ,agricultural science ,life science ,tourism , life orientatiom, ndebele and english**

Consult your school counselor, who can help you assess your abilities and interests along with recommending schools that will fit your needs.

*April 17, 2016*

**stats**

No data set. You can't copy and paste here.

*April 17, 2016*

**history,maths literacey,english,xitsonga,religion,**

Contact your school counselor.

*April 17, 2016*

**Statistic**

What is your question?

*April 17, 2016*

**dramatic art .tourism. history and math lit**

Contact your school counselor with this question.

*April 17, 2016*

**Elementary Statistics**

Z = (score-mean)/SEm SEm = SD/sqrt n Use same table.

*April 16, 2016*

**Algebra**

Let X = initiation fee X + 18m = 3950 X + 7m = 3125 Subtract second equation from first to solve for m. Insert value into either equation to solve for X.

*April 16, 2016*

**science help pls pls**

Under changing conditions

*April 15, 2016*

**science help pls pls**

Hydro- = water Geo- = ground

*April 15, 2016*

**i really need help with science pls help**

Disagree.

*April 15, 2016*

**science help pls pls pls**

Dwarf planet

*April 15, 2016*

**algebra**

We cannot measure your subjects to get the data.

*April 14, 2016*

**Algebra**

You did a good job. What's your confusion?

*April 14, 2016*

**math**

(1-7/8)*12 = ?

*April 14, 2016*

**i really need help with science pls help**

No diagram. Can't copy and paste here.

*April 14, 2016*

**Math**

Either-or probabilities are added. 10/20 + 3/20 + 5/20 = ?

*April 14, 2016*

**Stats - Help!!!**

Disagree.

*April 14, 2016*

**Stats - Help!!!**

Agree.

*April 14, 2016*

**Stats - Help!!!**

Agree with second choice.

*April 14, 2016*

**Stats - Help!!!**

Need goal before sample.

*April 14, 2016*

**Maths Lit, Geography, English, LO, EGD, Afr.**

Consult your school counselor who can help you define your goals according to your abilities and interests.

*April 14, 2016*

**math**

A = 6/8S 6A + 8S = 60 Substitute 6/8S for A in second equation and solve for S. Then use first equation to find A.

*April 14, 2016*

**math**

See your later post.

*April 13, 2016*

**Stats**

Since assignment is random, it is not C.

*April 13, 2016*

**Stats**

Agree. The blind condition will reduce probability of Jimenez treating them different.

*April 13, 2016*

**stats**

Use "areas under normal distribution" table in the back of your statistics text.

*April 13, 2016*

**science (correct please)**

2, 4 are wrong. The rest are right.

*April 13, 2016*

**Statistics**

Don't repeat questions. It wastes our time responding to multiples. See your later post.

*April 13, 2016*

**Science**

1. Styrofoam insulates, copper conducts. 2. Warm air rises.

*April 13, 2016*

**Urns and $ - Pre-Algebra**

P (both) found by multiplying them. 1. P(red,red) = 12/20*8/13 = ? 2. P(1,10) = 5/18 * 6/(18-1) = ?

*April 13, 2016*

**Physics needs help**

Indicate specific area in subject heading.

*April 13, 2016*

**Math**

No parts shown. Cannot copy and paste here.

*April 13, 2016*

**Algebra (Correction)**

J + D + K = 320 Solve for D, then K.

*April 12, 2016*

**Algebra**

J = D + 20 K = D/2 J + D + K = ? (D+20) + D + D/2 = ?

*April 12, 2016*

**Mathematics**

We don't do your work for you. However, we will be glad to respond to your answers. Consult your text.

*April 12, 2016*

**Health Plz help THX!!**

Oxygen correct. Others unanswered or wrong. Seems like you are just guessing. Use your textbook.

*April 12, 2016*

**science PLEASE CHECK MY ANSWERS**

Disagree with first answer but not sure about second but guess at cast.

*April 11, 2016*

**7th Grade Science**

Those variations (mutations) that lead to survival in the environment continue. If not, those go to extinction.

*April 11, 2016*

**science**

Different, gas, solid or liquid. You supply why.

*April 11, 2016*

**biology**

The sperm and egg are each haploid.

*April 11, 2016*

**Statistics**

5,352/100,000 = ?

*April 9, 2016*

**Statistics**

26*26*10^3 = ?

*April 9, 2016*

**Math**

Any value to the zero power = 1

*April 9, 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.

*April 9, 2016*