Friday

September 30, 2016
Total # Posts: 22,398

**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*

**Statistics**

Use same process, but calculate both Z scores first, then use the table.

*October 6, 2015*

**Statistics**

Same process.

*October 6, 2015*

**Math**

x = 39 - y 3.87x + 2.90y = 137.35 Substitute 39-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 5, 2015*

**Math**

a) Basic = 45 + .25x b) Continental = ? c) 45 + .25x < Continental Solve for x.

*October 5, 2015*

**science**

It would help if you proofread your questions before you posted them. What units are 19.2 of the "bock"? Is the "bock" wood, stone or some other material?

*October 5, 2015*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.121) and its Z score. Z score = -1.27 is standard deviations below the mean. 115 + 1.27(1.2) = mean

*October 5, 2015*

**bio statistics question!**

Aren't they between zero and one?

*October 5, 2015*

**math**

$500 + $50(weeks) $500 + $50(30) = ? Don't you get any interest on those savings?

*October 5, 2015*

**Math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 10^3 = 10 * 10 * 10 = ?

*October 5, 2015*

**History needs help**

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

*October 5, 2015*

**Statistics**

1) Either-or probabilities are found by adding the individual probabilities. 2) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

*October 5, 2015*

**Biology**

I think it's soft, (comma) and it's because being soft would help it to amplify sound waves to hear things more clearly. I think a person with a sore throat might end up with a mild ear infection, (comma) because the throat and the ear are linked by the EustachiAn tube...

*October 4, 2015*

**Science**

I agree with D.

*October 4, 2015*

**English**

The patient resides in a nursing home, which toppled over giving the patient a broken hip.

*October 4, 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 3, 2015*

**statistics**

Median = 50th percentile

*October 3, 2015*

**Gr.11 Biology**

Since it is a recessive X-linked gene, the father definitely does not have the MD gene. Since the mother does not have MD, she is heterozygous. There is a 50% chance of the other boys getting the MD gene and the disease and a 50% chance of the daughters being carriers, but no ...

*October 3, 2015*

**science**

Bone and muscle?

*October 3, 2015*

**AP Statisics**

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

*October 2, 2015*

**Statistics**

It would help if you proofread your questions before you posted them. "One bond is chosen risk?"

*October 2, 2015*

**Statistics**

1 - .80 = ?

*October 2, 2015*

**Statistics**

53 * .27 = ?

*October 1, 2015*

**Algebra**

L = W + 24 2L + 2W = 128 Substitute W + 24 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.

*October 1, 2015*

**algebra**

Q = 44 - D 10D + 25Q = $7.40 Substitute 44-D for Q in the second equation and solve for D.

*October 1, 2015*

**Statistics**

X = (107+19+10)/(total frequency)

*October 1, 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.

*October 1, 2015*

**Statistics**

Frosh = (4+15)/grand total Member = (4+9)/grand total Either-or probabilities are found by adding the individual probabilities.

*October 1, 2015*

**math fractions**

11 * (2 2/3)/(1 4/7) = 11 * (8/3)/(11/7) = 11* 8/3 * 7/11 = ?

*October 1, 2015*

**ratios**

What is your question?

*October 1, 2015*

**Math**

$12 * 768/24 = ?

*October 1, 2015*

**math**

Multiply both by 1,000,000. 27/9 = 3

*September 30, 2015*

**math**

Find the mean first = sum of scores/number of scores. Range = highest score - lowest Add the two values.

*September 30, 2015*

**Math (?)**

Complete

*September 29, 2015*

**statistics**

How many players on the team?

*September 29, 2015*

**math**

What is the length of the pieces?

*September 29, 2015*

**maths**

Use the Chi-square (X^2) method. X^2 = ∑ (O-E)^2/E, where O = observed frequency and E = expected frequency. ∑ = sum of all the cells. E = (column total * row total)/grand total df = n - 1, where n = number of cells Look up value in X^2 table in the back of your ...

*September 29, 2015*

**Math**

W = M + 6

*September 29, 2015*

**math**

$4,250,000 - $1,075,000 = ? This is a positively skewed distribution.

*September 28, 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.

*September 28, 2015*

**psychological test and measurements**

disagree.

*September 28, 2015*

**math**

9. r = d/t For d, multiply both sides by t. 10. y = 3x - 10 How did you get 7x? 3. (P - 21)/2 = w

*September 28, 2015*

**Math**

Divide 274 by (3+7+11) = 13.05 3 * 13.05 = ? 7 * 13.05 = ? 11 * 13.05 = ?

*September 28, 2015*

**Math**

If you are just concerned only with your class and measure the whole class, it is the population. If you want to generalize results to whole school or all students, you have a sample. I hope this helps.

*September 28, 2015*

**fundamentals math**

Are you allowed to use the table in your statistics text labeled something like "areas under normal distribution"?

*September 27, 2015*

**math**

1. $40 + $1x 2. $6x 3. You do this.

*September 27, 2015*

**math**

Math is good, but online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.

*September 27, 2015*

**math**

1.06x = 57.24 Solve for x for sale price. (1-.4)x = sale price Solve for x for full price.

*September 27, 2015*

**math**

G = E + 2 (G+5) + (E+5) = 42 Substitute E+2 for G in the second equation and solve for E. Insert that value into the first equation to solve for G. Check by putting both values into the second equation.

*September 27, 2015*

**Math**

Hundreds digit has to be 3. If there is another 3, then the third digit = 6. 363 or 336

*September 27, 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.

*September 27, 2015*

**Math**

27.75/2.5 = ?

*September 26, 2015*

**Math**

-5 + 24 - 28 = ?

*September 25, 2015*

**STAT**

Ho: mean1 = mean2 Ha: mean1 > mean2 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...

*September 25, 2015*

**Learning Behaviors**

Since this is not my area of expertise, I searched Google under the key words "opponent process theory of solomon and corbit" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=opponent+process+theory+of+solomon+and+corbit&ie=UTF-8&oe...

*September 24, 2015*

**math**

Here is one, a simple method. .37(27.6 + 15.9) = ?

*September 24, 2015*

**science**

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

*September 24, 2015*

**science**

Google "photosynthesis."

*September 24, 2015*

**Maths**

50 + (3*5) = ?

*September 23, 2015*

**Algebra 1**

1 4/5 = 1.8 1 2/3 = 1.67 2 is right.

*September 23, 2015*

**math**

Absolute value is the value regardless of sign.

*September 23, 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.

*September 23, 2015*

**Chemistry needs help**

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

*September 23, 2015*

**math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. (7^6)/7 = 7^5

*September 22, 2015*

**Mathematics (I really need help)**

1/100

*September 22, 2015*

**math**

Right

*September 22, 2015*

**maths**

h = 4k h - k = 36 Substitute 4k for h in the second equation and solve for k. Insert that value into the first equation to solve for h. Check by putting both values into the second equation.

*September 22, 2015*

**math**

Right.

*September 22, 2015*

**Science**

Control is amount of water in tanks. Otherwise correct.

*September 22, 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. See later post.

*September 22, 2015*

**math**

Get rid of parentheses. 2x^2-5x+9-0.5x^2+7x-3 = Combine like terms. 1.5x^2 + 2x + 6 Do the same with the second formula.

*September 22, 2015*

**Science Can You Please Check**

Agree with all.

*September 22, 2015*

**science**

What is your question?

*September 22, 2015*

**Math**

https://www.google.com/search?client=safari&rls=en&q=Algebra+addition+properties+and+subtraction+rules&ie=UTF-8&oe=UTF-8&gws_rd=ssl

*September 21, 2015*

**Math**

Mistake? I would estimate 220.

*September 21, 2015*

**Education(?)**

Maybe, if you explain what RTI is, we might be able to help.

*September 21, 2015*

**math**

Cannot draw graphs on these posts.

*September 21, 2015*

**science**

What reaction?

*September 21, 2015*

**probability**

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 (.20) and its Z score. Insert data into above equation. 1 - .20 = ?

*September 21, 2015*

**Math (partial)**

3. Add 33 to both sides. 5. Subtract 7 from both sides.

*September 21, 2015*

**math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Assuming that you mean (y^4)(y^3) with the numerals as exponents. When multiplying with the same base, the exponents are added. (y^4)(y^3) = y^7

*September 21, 2015*