Saturday

December 3, 2016
Total # Posts: 22,740

**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 the two Z scores. Multiply by 100 to get the percentage.

*February 6, 2016*

**Verbal reasoning**

Not knowing what you want to relate to fly, I would pick rapid vs. slow.

*February 6, 2016*

**algebra**

Reiny is right. I goofed. Mia Culpa.

*February 6, 2016*

**algebra**

P.S. Making a mistake does not mean you are dumb. We all make mistakes. However, if you keep making the same mistake, then you might be dumb.

*February 6, 2016*

**algebra**

Let d = # dimes and n = # nickels. d = 2n 10d + 5n = 195 Substitute 2n for d in the second equation and solve for n. Insert that value into the first equation to solve for d. Check by putting both values into the second equation.

*February 6, 2016*

**maths**

Revolution = one circumference C = πd cm = 1/100m Km = 1000m Can you put those together to solve the problem?

*February 6, 2016*

**Algebra**

The Y-intercept is where the lines pass through the Y axis.

*February 6, 2016*

**math**

F = 4J (F+22) = 2(J+22) Substitute 4J for F in the second equation and solve for F. Insert that value into the first equation to solve for J. Check by putting both values into the second equation.

*February 6, 2016*

**statistics**

Need data. What is the mean and Standard deviation for weight of newborns?

*February 6, 2016*

**math**

Ray paid $K for 1/2 hour Bill needs to pay for 7(1/2 hour) Bill paid $K + 2.5(2/3K)

*February 6, 2016*

**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 of the Z score. Multiply by 600.

*February 5, 2016*

**Statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. a. .25 * .25 * .75 = ? b. .75^3 = ? I'll leave c and d for you.

*February 5, 2016*

**MATH**

Assuming that a side is not a fraction of a length, the first square cannot use 17 lengths for a square perimeter.

*February 5, 2016*

**math**

1/2x = 3 Solve for x. Cannot draw or use strips here.

*February 5, 2016*

**Mat**

Assuming that you are talking about a cube, two sides would be 4 by 4, and 4 sides would be 4 by 2.

*February 5, 2016*

**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 of the Z score. How does it compare to .05?

*February 4, 2016*

**Math (?)**

Contradiction here. You originally say each crate "holds 10 vases."

*February 4, 2016*

**math**

Sum even = 2, 4, 6, 8, 10, 12 Mult. of 3 = 3, 6, 9, 12 Note that 6 and 12 fit both criteria. Either-or probabilities are found by adding the individual probabilities.

*February 4, 2016*

**Basic 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 "...

*February 4, 2016*

**Algebra**

Do you know the 68-95-99.7 rule? Approximately 68% of scores in normal distribution are within one standard deviation (34% on each side of the mean), 95% within 2 SD, and 99.7% within 3 SD. ±3Z = (score-mean)/SD

*February 4, 2016*

**Math**

32 * 2.1^5 = 32 * 40.8 = 1307

*February 4, 2016*

**Math**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. We cannot graph on these posts.

*February 4, 2016*

**algebra**

Let x = hours 10 + 5x = 40 + 3x Solve for x.

*February 4, 2016*

**science**

The individual tutors are not online all the time, so some questions may seem to take a relatively long time to get a response from someone with the specific expertise needed. Both factors typically increase as the depth decreases, allowing many marine creatures to survive.

*February 4, 2016*

**setswana (?)**

We are only able to respond to questions in English. Also, indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.

*February 4, 2016*

**math**

(1-.2) * 924 = 739.20 (1+.2) * 924 = 1108.8

*February 4, 2016*

**math**

Need data. What is the height?

*February 4, 2016*

**math**

Especially if we are from different backgrounds, don't assume that we know what abbreviations mean. What are S.P. and C.P.?

*February 4, 2016*

**math**

Do you have a recipe available?

*February 4, 2016*

**Science**

Do you think the the tied end is completely leak proof?

*February 4, 2016*

**math**

4/10 4/10 * 40 I'll let you reason it out.

*February 3, 2016*

**Statistics**

Unless the curve is normal, the median and mean may not be the same and you cannot calculate the percentages with a Z score. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the ...

*February 3, 2016*

**Statistics**

That may be the notation, but it does not = married.

*February 3, 2016*

**Math**

The question is not how much greater, but "How many times greater." 3.05/6.10 = 50% greater

*February 3, 2016*

**Bio**

Need more data. What genes are dominant or recessive?

*February 3, 2016*

**mathematics**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Is this what you mean? (4x^2)/3 + (5x^1)/3 - 6 Or do you mean this? 4x^(2/3) + 5x^(1/3) - 6 Or something else?

*February 3, 2016*

**mathematics**

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.

*February 3, 2016*

**science**

1. yes 2. no 3. yes 4. Even with internal fertilization, millions of sperm are released. Does that help?

*February 3, 2016*

**maths**

M = 2y (M-8) = 3(y-8) Substitute 2y for M in the second equation and solve for y.

*February 3, 2016*

**math**

let x = total students .4x = 972 Find x, then subtract 972 from that.

*February 3, 2016*

**Math Ms. Sue writeteacher anyone plz help!!!**

No, area = hb/2

*February 3, 2016*

**science/maths**

D = s * t D = 30(10) + 50(20) = ?

*February 3, 2016*

**math**

b = a-2 Area = ba/2 Substitute a-2 for b in the second equation and solve for a.

*February 3, 2016*

**maths **

What is your question? Also lacking data.

*February 3, 2016*

**science**

It would help if you proofread your questions before you posted them. "theaerasolto"?

*February 3, 2016*

**Algebra**

mean = ∑x/n 64 = (71+62+64+x)/4 Solve for x.

*February 2, 2016*

**English**

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.

*February 2, 2016*

**math**

P(colored) = 10/14

*February 2, 2016*

**Algebra**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Tank = 2 * 3 * 4 = 24ft^3 Water = 2 * 3 * h = 20ft^3

*February 2, 2016*

**Algebra**

Income = .14x + 1300

*February 2, 2016*

**maths**

What are your answers? 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.

*February 2, 2016*

**math**

P(purple) = 70/90 = ?

*February 2, 2016*

**Science**

Need more data. What kind of a "butt" are you referring to?

*February 1, 2016*

**Math**

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

*February 1, 2016*

**Math**

let x = number of tiles needed. 1/3 = 9/x x/6 = number of boxes

*February 1, 2016*

**Math**

It would help if you proofread your questions before you posted them. The information does not make sense as typed.

*February 1, 2016*

**Statistics**

87 is 1 SD below mean. 68% are ±1 SD, therefore 34% are below the mean, leaving 50% - 34% = 16% Here is another way to figure it out exactly. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution&...

*February 1, 2016*

**Math**

I assume the number you started with was 23.2. 2.32 + 1.16 = 3.48

*February 1, 2016*

**science (?)**

More data needed.

*February 1, 2016*

**Geometry**

1/9.52 = $/450 Solve for $.

*February 1, 2016*

**Geometry**

288/752 = H/564 Solve for H.

*February 1, 2016*

**Geometry**

To get 36, the ratio would need to be 4:8:10:14. What is x?

*February 1, 2016*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (2/9)^3 = ?

*February 1, 2016*

**activity**

What are your choices?

*February 1, 2016*

**activity**

You cannot copy and paste here.

*February 1, 2016*

**math-story prob**

Let x = sq ft 79.50 + x = 2.50x Solve for x.

*February 1, 2016*

**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 related to the Z score. Relate to level of significance you are using. Multiply ...

*January 31, 2016*

**statistics, probability**

Not necessarily true.

*January 31, 2016*

**math**

No choices. You cannot copy and paste here.

*January 31, 2016*

**Quantitative methods**

How many in each group? 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 ...

*January 31, 2016*

**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. However.... Since this is not my area of expertise, I searched Google under the key words &...

*January 31, 2016*

**science**

Please indicate answers with question. 1. The liquid part of the blood is called _____. (1 point) hemoglobin plasma*** platelets white blood cells 1. right 2. wrong 3. right 4. wrong 5. right 6. right 7. right 8. right 9. right

*January 31, 2016*

**algebra**

Hint: largest area would be a square.

*January 31, 2016*

**Physics needs help**

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

*January 31, 2016*

**tourism , geography, mathematical literacy, economics**

Speak with your school counselor so that person can ask you specific questions to help answer your question.

*January 31, 2016*

**Science**

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

*January 31, 2016*

**Technical drawing**

What angle? What type of figure?

*January 31, 2016*

**Science**

What do you use to generate enough heat to melt either metal?

*January 30, 2016*

**Science**

agree.

*January 30, 2016*

**statistics**

Need standard deviation (SD) value. 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 Z score.

*January 30, 2016*

**Psychology**

Agree with A, because person is dealing with the problem and is "problem-focused."

*January 30, 2016*

**setswana**

English please.

*January 30, 2016*

**Sociology**

We do not have access to the videos.

*January 29, 2016*

**algebra**

See previous post.

*January 29, 2016*

**algebra**

(n - 5)(n - 1) = n^2 - 6n + 5

*January 29, 2016*

**poetry**

What are the specific haiku? You cannot copy and paste here.

*January 29, 2016*

**Math**

I assume "reaping" means fencing. Let x = fencing in meters 27.5x = 55,000 45x/100 = ? Solve for x, then ?.

*January 29, 2016*

**English (?)**

What is the "Big Question"?

*January 29, 2016*

**Business study,econamics,math lit,tourism**

Talk to your school counselor, who can ask you specific questions to determine what jobs would suit you.

*January 29, 2016*

**Math**

"≥" can be obtained by using ">" key along with "option" key.

*January 29, 2016*

**Math**

It would help if you proofread your questions before you posted them. 14 what of an hour?

*January 28, 2016*

**Physics needs help**

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

*January 28, 2016*

**Science**

Mere boiling would not help unless all the water had evaporated.

*January 28, 2016*

**Science Help!**

You cannot copy and paste here. The mating of two LS cats would give you 75% short hair.

*January 28, 2016*

**math**

M = 40 - S M + 10 = 2(S + 10) Substitute 40-S for M in the second equation and solve for S. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.

*January 28, 2016*

**Math**

5/.75 = ?

*January 28, 2016*

**math**

"≥" can be obtained by using ">" key with "option" key. An inequality is treated just like an equation, except that multiplying/dividing by a negative value reverses the carat (< to >).

*January 28, 2016*

**English**

Disagree

*January 27, 2016*

**English**

Agree

*January 27, 2016*

**Math**

Subtract 11 from both sides, then divide by 2.

*January 27, 2016*