Saturday

February 6, 2016
Total # Posts: 21,122

**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*

**Math**

m + (-13) = -18 m -13 = -18 m = -5
*September 21, 2015*

**English**

What is you question?
*September 21, 2015*

**Business Statistics**

With you limited data, the best estimate is 350 hours. If you want a probability statement, P = mean ± Z (SEm) SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/...
*September 20, 2015*

**Statistics**

It is one of the eleven numbers.
*September 20, 2015*

**Algebra**

It would help if you proofread your questions before you posted them. Do you really mean "4 ft by 10 in long"? If so, 10 inches is the width. If that is really what you mean 40/4 = 10.
*September 20, 2015*

**Math**

Inadequate data.
*September 20, 2015*

**science**

What is your question?
*September 20, 2015*

**Science**

Since when is water volume measured in meters? With the same volume of each water, (10+90)/2 = ?
*September 20, 2015*

**English**

Have you tried reading the story? Are you talking about the "White Knight Chronicles"? If so, Google that title.
*September 20, 2015*

**Science**

What distance?
*September 20, 2015*

**MATH**

Multiply both sides of the equation by x.
*September 19, 2015*

**science**

What is your question?
*September 19, 2015*

**math**

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. Online, “*” is used to indicate multiplication to avoid confusion with “x&#...
*September 19, 2015*

**Math**

Looks good to me.
*September 19, 2015*

**Math**

7/5 = x/35 Solve for x.
*September 19, 2015*

**Biology**

Need to know dominance factors of genotype to gauge percents of phenotype.
*September 19, 2015*

**Psychology**

It would go from upper left to lower right in a moderately loose pattern.
*September 18, 2015*

**Science**

Since this is not my area of expertise, I searched Google under the key words "models in science" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=%22models+in+science%22&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
*September 18, 2015*

**Algebra**

Not shown. Cannot copy and paste here.
*September 18, 2015*

**math**

Multiply both sides by 8. 3. x + 56 = -80 5. 4x - 40 = -3x +16 6. Get rid of parentheses. 3x - 12 - x - 5 = 2x + 11 Combine like terms and solve for x. However, unless you have a typo, #6 is unsolvable.
*September 17, 2015*

**community psychology**

What is your hypothesis?
*September 17, 2015*

**science**

agree
*September 17, 2015*

**Math**

(42-10)/42 = ?
*September 17, 2015*

**Math**

9/(5+1) = 1.5 1.5 * 5 = 7.5 1.5 * 1 = 1.5 7.5 + 1.5 = 9
*September 17, 2015*

**Math**

area = a * base area/a = base 96/8 = ?
*September 17, 2015*

**math**

Let x = speed 3x = 2(x+19) Solve for x.
*September 16, 2015*

**Science**

Right
*September 16, 2015*

**Science**

Agree
*September 16, 2015*

**college algebra**

Consider a country with only 100 people. What do you think their total emissions would be?
*September 16, 2015*

**maths**

Factors to (x-6)(x+1)
*September 16, 2015*

**college algebra**

It would help to relate to number of drivers in each country, not just per capita.
*September 16, 2015*

**college algebra**

94,848/128,000,000 = x/US population Insert data and solve for x.
*September 16, 2015*

**biology (hannah)**

If you don't know, do not respond. Your response indicates that the post was already answered.
*September 15, 2015*

**biology**

Since this is not my area of expertise, I searched Google under the key words "rocks storing carbon" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=rocks+storing+carbon&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
*September 15, 2015*

**stats**

Z = (score-mean)/SD Insert values and calculate.
*September 15, 2015*

**science**

No figure. You cannot copy and paste here.
*September 15, 2015*

**Math**

What is your question? Here is a guess. a/c - c/a Multiply by ca a^2 - c^2
*September 15, 2015*

**Science**

No, the experiment is confounded with the quality of the irrigation systems.
*September 15, 2015*

**Math**

2x ≤ $35 Your division signs look like plus signs. 2x/2 ≤ $35/2 x ≤ $17.50 per puppy However, if one puppy < $17.50, the other can be proportionately > $17.50. "≤" is found by pressing "<" and "option" keys.
*September 15, 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.
*September 15, 2015*

**satistics**

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 "...
*September 15, 2015*

**Statistics**

Approximately mean ±2Z or ±2SD
*September 14, 2015*

**Science**

A, but anyway, the sample of 2 hits is too small.
*September 14, 2015*

**science**

No. 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 14, 2015*

**Math**

Graph it out. What does it look like?
*September 14, 2015*

**STATISTICS**

Need measure of variability.
*September 14, 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 between the two Z scores.
*September 14, 2015*

**Math**

No circle graph. Cannot copy and paste here.
*September 14, 2015*

**Math**

What was original problem?
*September 14, 2015*

**Algebra**

It would help if you proofread your questions before you posted them. Do you really want "the average cost of the crate"? ($75+$82)/2 = ?
*September 14, 2015*

**algebra**

-3*(4+7) = -3 * 11 = -33
*September 14, 2015*

**statistics**

It seems like it is asking for the numerical values of each variable.
*September 13, 2015*

**grammer**

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, I will start you out. drawings (plural) are
*September 13, 2015*

**math**

9.6 - 8.4 = ?
*September 13, 2015*

**Maths**

1) 2a^2b(1+4b) 2) Correct
*September 13, 2015*

**Physics needs help**

Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you. Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*September 13, 2015*

**math**

12 cm (120*72)/(12*12) = 60
*September 13, 2015*

**math**

6 cm (120*72)/(6*6) = 240
*September 13, 2015*

**math**

What is your question?
*September 12, 2015*

**algebra**

f(2) = (3*2^2) - (4*2) - 1 = 3*4 - 8 - 1 = 3 Use the same process for the remaining problems.
*September 12, 2015*

**math**

2/5c + 4 -1/5 = -4 Subtract 4 and add 1/5 to both sides. 2/5c = -7 4/5 = -7.8 Multiply both sides by 5/2. c = 19.5
*September 12, 2015*

**Math**

Quantitative, quantitative, nominal, (nominal)???, quantitative
*September 12, 2015*

**Algebra 2**

What expression? You cannot copy and paste here.
*September 12, 2015*

**statistic**

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 12, 2015*

**math**

1/10 = x/11.9 Solve for x. Do the same for second question.
*September 12, 2015*

**Biology**

If blue is recessive to hazel, yes. Even not knowing genotypes for hair, I would assume not.
*September 11, 2015*

**algebra**

80 + .35n = 49.25 + .5n 30.75 = .15n n < 205
*September 11, 2015*

**biology**

Right
*September 11, 2015*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. A negative times a positive is a negative.
*September 11, 2015*

**science**

What graph? You cannot copy and paste here.
*September 11, 2015*

**science**

What graph? You cannot copy and paste here. Only use one name.
*September 11, 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 11, 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. How is this biology?
*September 11, 2015*

**psychology**

What are your choices? Behaviorism?
*September 10, 2015*

**Alegbra**

s = L -18 5L - 4s = 100 Substitute L-18 for s in the second equation and solve for L. Insert that value into the first equation to solve for s. Check by putting both values into the second equation.
*September 10, 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.
*September 10, 2015*

**Statistics**

.997 = mean ± Z * SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.003/2) and its Z score. Insert data into above equation and solve.
*September 10, 2015*