Thursday

February 11, 2016
Total # Posts: 21,179

**Stats**

a. Z = (score-mean)/SD = (6820-7500)/1750 = -.39 Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score = .3483. b. Mean the same, but SEm = SD√n. Standard Error ...
*May 23, 2015*

**Statistics**

However, if you need sample of thousands to get statistical significance, it probably is not of practical significance in individual cases.
*May 23, 2015*

**Statistics**

https://www.google.com/search?client=safari&rls=en&q=practical+statistical+significance&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*May 23, 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.
*May 22, 2015*

**English**

Since this is not my area of expertise, I searched Google under the key words "interpreting scantron scores" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=reading+scantron+scores&ie=UTF-8&oe=UTF-8&gws_rd=ssl#rls=en&q=interpreting...
*May 22, 2015*

**algebra**

(2n^2+5n+4)(-4) = -8n^2 - 20n - 16 (2n^2+5n+4)(2n) = 4n^3 + 10n^2 + 8n Combine like terms. Looks like you have typos for C.
*May 22, 2015*

**Algebra**

Without the graphs, we cannot adequately respond.
*May 22, 2015*

**5 th grade math**

Process: 1 lb = 16 oz .30 * 16 oz = $4.80
*May 21, 2015*

**algebra**

agree.
*May 21, 2015*

**algebra**

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.
*May 21, 2015*

**algebra**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. a^4b + a^2 b^3 = a^2b(a^2+b^2)
*May 21, 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.
*May 21, 2015*

**Math**

120/30 = x/84 Solve for x.
*May 21, 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 related to the Z score. Multiply by 800.
*May 21, 2015*

**math**

What is your question?
*May 21, 2015*

**biology**

Since this is not my area of expertise, I searched Google under the key words "unsaturated alkenes" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=obesity&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information ...
*May 21, 2015*

**Prob and Stats**

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.
*May 21, 2015*

**CSIR General Aptitude**

What figure?
*May 20, 2015*

**probability self study**

Once you find the silver watch, you can eliminate the box with the two gold watches. So it is either the box with the two silver watches or the one with gold and silver, two possibilities = 1/2.
*May 19, 2015*

**Math**

4/(8-1) = ?
*May 19, 2015*

**math**

Get rid of parentheses. 9z+8+6-12z-9 = 40 Combine terms. -3z + 5 = 40 Subtract 5 from both sides and then divide by -3.
*May 19, 2015*

**math**

Add 4 to both sides, then multiply both sides by 3.
*May 19, 2015*

**science (any tutor)**

Good for you!
*May 19, 2015*

**Math**

Since when are baseballs filled with air? I would say zero. However, to find the volume: V = 4/3 π r^3 r = d/2
*May 19, 2015*

**Math**

4000(30% of 20% + 30%) = ?
*May 18, 2015*

**Math**

Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you. 72/2 = ?
*May 18, 2015*

**Math HELP! Ms.Sue**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1. P(purple) = 7/9 Once purple is selected, P (white) = 2/(9-1) Multiply. 2, 3. Use similar process and compare answers.
*May 18, 2015*

**algebra**

100w + 10000 = 400w + 7000 Subtract 7000 and 100w from both sides. 3000 = 300w Solve for w. Insert w value in your equations above.
*May 18, 2015*

**math**

When multiplying/dividing, exponents are added/subtracted respectively. Answer is not A.
*May 18, 2015*

**math**

When multiplying/dividing, exponents are added/subtracted respectively. 100^12/100^8 = ?
*May 18, 2015*

**anatomy and physiology**

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.
*May 17, 2015*

**Maths**

3/9 / 2/8 = 3/9 * 8/2 = 1/3 * 4 = 4/3 2/5 * 8/4 = 2/5 * 2 = 4/5 Add the two.
*May 17, 2015*

**Science**

You are welcome.
*May 17, 2015*

**Science**

Since this is not my area of expertise, I searched Google under the key words "radiation conduction convection definitions" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=radiation+conduction+convection+definitions&ie=UTF-8&oe=UTF...
*May 17, 2015*

**science**

Since this is not my area of expertise, I searched Google under the key words "four principles of kinetic friction" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=four+principles+of+kinetic+friction&ie=UTF-8&oe=UTF-8&gws_rd=ssl In...
*May 17, 2015*

**Biology**

Since this is not my area of expertise, I searched Google under the key words "digestion absorption and assimilation of food" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=digestion+absorption+and+assimilation+of+food&ie=UTF-8&oe...
*May 17, 2015*

**Math**

P.S. How is this math?
*May 16, 2015*

**Math**

Since this is not my area of expertise, I searched Google under the key words "photosynthesis" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=photosynthesis&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information ...
*May 16, 2015*

**Probalility**

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.
*May 15, 2015*

**math**

Assume you weigh 100. 4/18 = x/100 400 = 18x x = 22.22 Is that close enough to 0.25?
*May 14, 2015*

**Math**

The number of events is 2, choosing the M&M and choosing the Skittle.
*May 14, 2015*

**education technology**

Newspaper? Book?
*May 14, 2015*

**MATH**

When multiplying/dividing, you add/subtract exponents, respectively. 1. x^9/x^2 ≠ x^11 2. h^14/h^3 ≠ h^19 None of the alternatives for 2 are correct. Do you have a typo?
*May 14, 2015*

**Math help please**

The chance probability of any number from 1-12 is 1/12 = 8.3%
*May 14, 2015*

**statistics**

a. 25.2 years b. 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. 95% = mean ± Z SEm SEm = SD/√n SD = √variance c. Same ...
*May 14, 2015*

**Math**

Let x = amount invested at 19%. .19x + .06(25,000-x) = 3,320 Solve for x.
*May 13, 2015*

**Math**

A=πr(r+√[h^2+r^2]) Insert values and solve.
*May 13, 2015*

**Math**

Convert to decimals or… Consider that 7/8 > 1/2 and 7/24 < 1/2.
*May 13, 2015*

**information technology**

Since this is not my area of expertise, I searched Google under the key words "scope of information technology" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=scope+of+information+technology&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the ...
*May 13, 2015*

**written communication**

Plan? Intend?
*May 13, 2015*

**math**

.12x = 19,200 Solve for x.
*May 13, 2015*

**math**

V=πr^2h/3 350 = π r^2 (10/3) Solve for r.
*May 13, 2015*

**mode in central tendency**

Is there a score which appears most often?
*May 12, 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.
*May 12, 2015*

**Ton**

Each toss of two dice has 36 possibilites. 2 can only be obtained by 1,1 --> 1/36 *1000 = ? 4 can be obtained by 2,2 3,1 1,3 so --> 3/36 * 1000 = ? And so on….
*May 12, 2015*

**Math**

Let B = Brown (dominant) and b = blue (recessive) Lavonne's genotype is Bb, because dad has bb. Use Punnett square for Bb (Lavonne) and bb (husband) https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl Each birth is independent, ...
*May 12, 2015*

**Math (Oooops)**

4/10 * 2/10 = 2/5 * 1/5 ≠ 3/25
*May 12, 2015*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 4/10 * 2/10 = 3/25
*May 12, 2015*

**math**

1 2/3 + 7/8 = 5/3 + 7/8 = 40/24 + 21/24 = ? in hours. Or your could convert to minutes. 60 + 40 + 52.5 = ? in minutes
*May 11, 2015*

**Math**

Cannot graph on these posts.
*May 11, 2015*

**math**

Yes
*May 11, 2015*

**Statistics**

1. 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 score. 2. Z = (score-mean)/SEm SEm = SD/√n Use same table.
*May 11, 2015*

**Statistics**

190 what? Minutes? Hours? 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.
*May 11, 2015*

**Algebra 2 Honors**

-3/9 = y/81 Solve for y.
*May 11, 2015*

**Math**

√3b^2 = √3 * b or do you mean: √(3b^2/27b^4) = √(1/9b^2) = 1/3b
*May 11, 2015*

**math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. (x+2)^2-1=3 x^2 + 4x + 4 -1 = 3 x^2 + 4x = 0 x(x+4) = 0
*May 11, 2015*

**Math**

L = 4W L * W < 100 Substitute 4W for L.
*May 11, 2015*

**Math**

2 = 2 * 159 3 = 3 * 159 etcetra….
*May 11, 2015*

**Math**

c = 7s For your variables, determine what causes what. 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.
*May 11, 2015*

**Extremly hard math**

Just substitute those values for n to calculate C.
*May 11, 2015*

**probs & stats**

1. 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 SEm SEm = SD/√n 2. Same but use .025. 3. Same but use .05. What is size ...
*May 11, 2015*

**probs & stats**

What is the significance level you are using? P = .05? P = .01? 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 ...
*May 11, 2015*

**Math**

-5x^2 + 8x - 2 Do you have a typo?
*May 11, 2015*

**stats**

µ ± 1.0 SD = approximately 68%
*May 11, 2015*

**Pseudocode**

What problem?
*May 11, 2015*

**math**

L = 3W L * W = 3W * W = 198 Solve for L and W, then use Pythagorean Theorem. L^2 + W^2 = Diagonal^2
*May 11, 2015*

**mathsLiteracy,bussness and consumerstudies,economi**

Talk to your school counselor. S/he can ask more specific questions to help you become aware of your best alternatives.
*May 10, 2015*

**math**

Don't sin.
*May 10, 2015*

**math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. I assume r1 = r^1 = r to the first power = r. e = 1 - r - y Add y and subtract e from both sides. y = 1 - r - e Insert values and solve.
*May 10, 2015*

**Statistics**

Do you have typos? 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. Relate to .03.
*May 9, 2015*

**data**

What is your question?
*May 8, 2015*

**statistic**

Lacking data. How many green and white balls are in the urn? (green/total)^4 = ?
*May 8, 2015*

**maths**

Use Pythagorean theorem. 22^2 + 120^2 = diagonal^2
*May 8, 2015*

**math**

G = 11 W = J/2 G + J + W = 26 11 + J + J/2 = 26 Solve for J.
*May 7, 2015*

**math (oops)**

Sorry, my goof. Ms. Sue is right.
*May 7, 2015*

**math**

(2*28.5*10.5)/4 = ?
*May 7, 2015*

**Science**

Since this is not my area of expertise, I searched Google under the key words "plant photosynthesis process" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=plant+photosynthesis&ie=UTF-8&oe=UTF-8&gws_rd=ssl#rls=en&q=plant+...
*May 7, 2015*

**Math discussion**

The key word is "you" rather than us. https://www.google.com/search?client=safari&rls=en&q=meteorological+predictions&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*May 7, 2015*

**biology**

Since this is not my area of expertise, I searched Google under the key words "heart potentials initiated" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=heart+potentials+initiated&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you ...
*May 7, 2015*

**Science (?)**

What two tissue types?
*May 7, 2015*

**Stats**

Ho: mean = 370 Ha: mean > 370 Z = (score-mean)/SEm = ? SEm = SD/√n
*May 6, 2015*

**math**

Range is approximately 25,000 to 50,000. Divide that range into 5 intervals. Does that approximate a bell-shaped curve?
*May 6, 2015*

**Math**

Make a frequency distribution of the finish times. Does that approximate a normal, skewed or bimodal distribution?
*May 6, 2015*

**Statistics**

Ho: mean ≤ 90 Ha: mean > 90 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 elated to the Z score. Is the smaller area ≤ .10?
*May 6, 2015*

**biology**

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

**Science**

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

**Statistics**

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 "...
*May 4, 2015*

**Maths**

2(12+6) + 2(7+6) = ?
*May 4, 2015*

**science**

Humans have a heart the pumps the water and nutrients.
*May 3, 2015*