Saturday

February 25, 2017
Total # Posts: 23,047

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 5(4+3) * 6 = 210

*September 12, 2016*

**math**

W = 2L - 8 W * L = 172 Substitute 2L-8 for W in the second equation and solve for L. Insert that value into the first equation to solve for W. Check by putting both values into the second equation. Then use Pythagorean theorem. W^2 + L^2 = diagonal^2

*September 11, 2016*

**Math**

5 and -5, the magnitude of a real number without regard to its sign.

*September 11, 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. See later post.

*September 11, 2016*

**Math**

The same. High minus low still the same.

*September 11, 2016*

**math (?)**

What about the hundreds place? x95, x84, x73, x62, x51 Need more info.

*September 11, 2016*

**math**

F = M - 240 M - 260 = 2F Substitute M-240 for F in the second equation and solve for M.

*September 11, 2016*

**algebra (?)**

What is your question?

*September 11, 2016*

**Maths**

(1-4/9)x = 45 Solve for x, then subtract 45 from that.

*September 11, 2016*

**Math**

N + 3

*September 11, 2016*

**math**

Radius bisects square, so use Pythagorean theorem. x^2 + x^2 = 2x^2 = 12^2

*September 10, 2016*

**math**

12^2

*September 10, 2016*

**math**

Use Pythagorean Theorem. s^2 + s^2 = 12^@

*September 10, 2016*

**math**

Pythagorean theorem again 12^2 + 9^2 = d^2

*September 10, 2016*

**math (?)**

Which two corners?

*September 10, 2016*

**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, 2016*

**Science**

1-3 Right 4. Rejected 5. Lack of thiamine causes beriberi. New set of chickens fed whole grain or polished rice.

*September 10, 2016*

**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. Cannot draw diagrams on these posts.

*September 10, 2016*

**English (?)**

equals what?

*September 9, 2016*

**Math**

Right, x = 18 mean = ∑x/n Therefore mean * N = ∑x 14 * 5 = 70 Which 5 scores will = 70?

*September 8, 2016*

**Math**

Subtract 8x from both sides, then divide both sides by -4.

*September 8, 2016*

**Math**

You do not need to use all four operations ("at most"). 33*3 + 3/3 = 100

*September 8, 2016*

**Math**

Assuming that 10.5 is the height of the pictures, that is what I would do.

*September 7, 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.

*September 7, 2016*

**Math**

Right

*September 7, 2016*

**Algebra Age**

J = 3A J+15 = 2(A+15) Substitute 3A for J in the second equation and solve for A. Insert that value into the first equation to solve for J. Check by putting both values into the second equation.

*September 7, 2016*

**Math**

I will do two for you to show the process. 2) 97/100 3) 36/2

*September 7, 2016*

**Math (?)**

What is your question?

*September 7, 2016*

**math**

Cannot graph on these posts.

*September 7, 2016*

**Math**

40/7 = x/20 Solve for x.

*September 7, 2016*

**Math**

Although each chosen color was the most likely, the majority of the time (55%) they will be wrong.

*September 7, 2016*

**science**

Sexual reproduction involves a chance combination of half the chromosomes from each parent. It is impossible to tell how it effects the chances for survival for AN organism, but with severe environmental changes, it increases the chances that some members of the species will ...

*September 7, 2016*

**english speech**

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.

*September 7, 2016*

**MATH help asap**

You need to post the specific problem, so we can give an adequate response.

*September 7, 2016*

**Math (?)**

It would help if you proofread your questions before you posted them. Second car speed?

*September 7, 2016*

**Math**

10/3 = x/.5 Solve for x.

*September 7, 2016*

**Math**

In the two hours, first car has traveled 70 miles. 55x = 70 + 35x Solve for x. 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 7, 2016*

**math**

54/18 = 3

*September 7, 2016*

**Science**

Every question answered brings up new questions. Can you think of a better way than the inquiry process?

*September 7, 2016*

**Science**

Since this is not my area of expertise, I searched Google under the key words "How Can Nitrogen Be Obtained From Ammonia Gas? " to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=How+Can+Nitrogen+Be+Obtained+From+Ammonia+Gas%3F&ie=UTF...

*September 7, 2016*

**Maths**

It would help if you proofread your questions before you posted them. You are missing a number between - and /.

*September 7, 2016*

**statistics**

5 * 10 * 6 * 8 = ?

*September 7, 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.

*September 7, 2016*

**Science**

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

*September 7, 2016*

**Math (?)**

What graphs? Cannot copy and paste here.

*September 7, 2016*

**math**

431,205,601

*September 6, 2016*

**Algebra**

22.50 = (1-.25)p Solve for p.

*September 6, 2016*

**Science**

...or predator.

*September 6, 2016*

**Science**

It matches the background, so they are less likely to be detected as prey.

*September 6, 2016*

**Math**

Just think of Arctic Circle, where the sun is up 24 hours a day during the summer.

*September 6, 2016*

**Math**

Correlation does not necessarily mean causation.

*September 6, 2016*

**Math**

Convert to decimals to clarify. .6 + .7 = 1.3 lbs 1.3/.8 = ?

*September 6, 2016*

**Geometry**

Have no idea about length of line. Cannot copy and paste here.

*September 6, 2016*

**math**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. 8 + 12p ≤ 140 Solve for p.

*September 6, 2016*

**stats**

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. Z = (score-mean)/SD You can also find table in the back of your statistics text labeled...

*September 5, 2016*

**profit and loss (?)**

It would help if you proofread your questions before you posted them. What is your question?

*September 5, 2016*

**Science PLEASE HELP**

Since this is not my area of expertise, I searched Google under the key words "what functions do individual cells perform that are similar to the functions of our bodies?" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=what+...

*September 5, 2016*

**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 5, 2016*

**math**

Assuming all rows have the same number of seats: 600/36 = 16.67 = ?

*September 5, 2016*

**MATH**

The one boy could be born first, second, third or last, 4 ways. The rest will be girls. Cannot do a tree diagram here.

*September 4, 2016*

**Statistics**

P(65+) = .2 P(<65) = .98 P(2<65 of 6) = .98^2 * .2^4 = ? Cannot construct probability distribution here.

*September 4, 2016*

**Math**

Specific weight is weight per unit volume. 540/(5)^3 = ? g/cc

*September 4, 2016*

**Algebra**

A = C + 4 9A + 5C = 76 Substitute C+4 for A in the second equation and solve for C. Insert that value into the first equation to solve for A. Check by putting both values into the second equation.

*September 3, 2016*

**math**

mean = ∑x/n Since you just want change you can ignore direction. Use absolute values. Disagree

*September 3, 2016*

**math**

Have more confidence in yourself.

*September 3, 2016*

**math**

Agree with answer. Why are you not sure of your addition?

*September 3, 2016*

**math**

12 - 3 + 10 - 15 = ?

*September 3, 2016*

**algebra 1**

-3*4 = -12 A negative times/divided by a negative is positive. -12/-6 = 2

*September 3, 2016*

**algebra 1**

disagree

*September 3, 2016*

**math**

123,456

*September 3, 2016*

**algebra 1**

agree

*September 3, 2016*

**Math**

450 = 3/4, then 150 = 1/4 full = 600 2/3 * 600 = ?

*September 3, 2016*

**math**

29.97 * .2 + ?

*September 3, 2016*

**Math**

Assuming that you mean what she gets that week, I agree.

*September 3, 2016*

**math (?)**

No table. Cannot copy and paste here.

*September 2, 2016*

**Pre-algebra**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. P(red) = 3/6 P(blue) = 5/6

*September 2, 2016*

**algebra**

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 (.25) and its Z score. Insert data into above equation and solve for score.

*September 1, 2016*

**AP Psychology**

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.

*August 31, 2016*

**Examples**

Don't know about your statistics, but here is answer to your question. com·mon stock noun NORTH AMERICAN shares entitling their holder to dividends that vary in amount and may even be missed, depending on the fortunes of the company.

*August 31, 2016*

**Science**

How many significant figures do you want? I would pick C. http://www.purplemath.com/modules/rounding2.htm

*August 31, 2016*

**science**

A main point in this question is "you." 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.

*August 31, 2016*

**Math**

(100)16/(26+19+21+16+32) = ?

*August 31, 2016*

**Math (?)**

No model pictured. Cannot copy and paste here.

*August 30, 2016*

**Math**

Is the blank space supposed to be a decimal point? 10,000 + 1,000 + 700 + ....

*August 30, 2016*

**science**

conclusion

*August 29, 2016*

**algebra**

m - 150 = g m - 190 = g/2 m - 190 = (m-150)/2 Solve for m.

*August 29, 2016*

**Statistics**

Maybe this will help: https://www.google.com/?client=safari#q=venn+diagram+template&gws_rd=ssl

*August 29, 2016*

**Statistics**

Cannot draw Venn diagram here.

*August 29, 2016*

**science**

atomic number?

*August 28, 2016*

**Statstics**

Z for .01 on each side is approximately 2.33. 98% = mean ± Z(SD/√n) = 128 ± (2.33)(21/√41) I'll let you do the calculations.

*August 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.

*August 28, 2016*

**math**

2.4/12 = ?

*August 27, 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.

*August 27, 2016*

**Algebra**

3750 = 3000c - 900 Add 900 to both sides, then divide both sides by 3000.

*August 26, 2016*

**Math**

4,999 + 4,998

*August 26, 2016*

**Statistics**

A) 12/40 B) 13/40 * 100 C) 4/12 * 100 D) (40-13-12)/40

*August 25, 2016*

**biology**

Let N = normal allele and b = colorblind Parents are XNY and XNXb Only the girls in the first generation carried the b. If the boys had the b, they would be colorblind, because there would be no N on the Y chromosome. To produce 50% colorblind, the males must have married ...

*August 25, 2016*

**Algebra 1 (?)**

What variables?

*August 24, 2016*

**science**

Talk to your school counselor. That person should be able to answer your question better than we could.

*August 23, 2016*