# Posts by PsyDAG

Total # Posts: 23,385

**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.

**math**

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

**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.

**Statistics**

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

**Math**

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

**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.

**math**

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

**math**

Have more confidence in yourself.

**math**

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

**math**

12 - 3 + 10 - 15 = ?

**algebra 1**

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

**algebra 1**

disagree

**math**

123,456

**algebra 1**

agree

**Math**

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

**math**

29.97 * .2 + ?

**Math**

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

**math (?)**

No table. Cannot copy and paste here.

**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

**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.

**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.

**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.

**Science**

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

**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.

**Math**

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

**Math (?)**

No model pictured. Cannot copy and paste here.

**Math**

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

**science**

conclusion

**algebra**

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

**Statistics**

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

**Statistics**

Cannot draw Venn diagram here.

**science**

atomic number?

**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.

**Physics needs help**

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

**math**

2.4/12 = ?

**physics needs help**

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

**Algebra**

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

**Math**

4,999 + 4,998

**Statistics**

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

**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 ...

**Algebra 1 (?)**

What variables?

**science**

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

**algebra**

-(a)^n will always be negative. (-a)^n will be positive for the even powers.

**biology**

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

**Math**

df = (4-1)(5-1) = 12 Looking up 17.209 at 12 df gives you .20>P>.10. What does that tell you?

**Chemistry needs help**

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

**Math**

(400-320)/400 = ? (convert to percent).

**Math**

-2 * 3 = ?

**Science**

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

**geometry**

Are they the same height?

**geometry**

.23033 Km = 230.33 m 35.42: 230.33

**Math?**

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

**science**

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

**Physics needs help**

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

**biology**

1 and 2 fine. Still disagree with 3.

**biology**

Disagree with 3.

**Math**

.85

**biology**

No, any child will get either A or B from mom.

**biology**

N = normal gene, a = albino Both parents must be Na. Use a Punnett square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl

**Math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 8 * 5/6 = 40/6 = 20/3 4 * 1/4 = 4/4 = 1 110 * 21/66 = 2310/66 = 770/22 = 385/11 = 35 I have given examples of the process. You do the rest.

**math**

The progression divides by 5.

**Math**

1) divide both sides by 5 2) subtract 1 from both sides 3) divide both sides by 6

**science,John Dalton**

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

**math**

2(55) + .38(94-40) = ?

**algebra**

It would help if you proofread your questions before you posted them. You state the probability (1/4). Unless there is more data, that is the odds.

**math**

It would help if you proofread your questions before you posted them. "the numerator of a fraction is 3 less than the numerator"?

**Math**

520/5 = 104 sq inches for base Area of cardboard = 105 + 4(5^2) Length = √area

**science**

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

**algebra**

Cheepers = 39x + 20 Busters = 49x

**Math**

Welcome

**Math**

12 * 10 = 120 yards 7.5 * 10 = 75 yards sq yard = 9 sq feet 9(120 * 75) = ?

**math (?)**

It would help if you proofread your questions before you posted them. Which it won? total - won = lost (assuming no ties)

**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.

**Math (?)**

It would help if you proofread your questions before you posted them. According to your data, they all study.

**Math**

9 - (-16+5) = 9 + 16 - 5 = 20

**Math (?)**

Both the brownies and case have depth. Not given. For a tray: (12*16)/(2*2) = ? Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.

**Math**

3 + 2 = 5 5 * 4 = ?

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .15^3 * .85^9 = ?

**Math (?)**

It would help if you proofread your questions before you posted them. How much more? 23,20; 30,13....

**math**

3/8 + 4/8 = ?

**probability**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 13/52 * 13/52 = 1/4 * 1/4 = ?

**probability**

Use Punnett Square with Rr and RR.

**probability**

Use Punnett square with Rr and rr. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=sslhttps://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl

**Science**

If you are defining life as vs. non-life, yes.

**fundamentals of math (?)**

perpendicular bisector

**Fundamentals of Math**

Change meters to cm. 49/90 = x/3600 Solve for x.

**math**

4000 ≤ 0.25m + 1300 2700 ≤ .25m 2700/.25 = m

**Mathematics**

Speed = distance/time speed * time = distance Convert time to hours.

**Biology assignment**

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

**PSY 202 - Abnormal Psychology**

I searched Google under the key words "Major Depression symptoms" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Major+Depression+symptoms&ie=UTF-8&oe=UTF-8&gws_rd=ssl Do the same for Anxiety Disorders. In the future, you can find...

**Math**

What is your question?

**math**

7x - 3x = 24 Solve for x, then 3x.

**Math**

The only even number > 6 and < 10 = 8.

**Algebra**

Let x = minutes 40 + .20(x-250) = total monthly Treat any negative value of x-250 as = zero.

**Physics needs help**

First, please do not use all capitals. Online it is like SHOUTING. Not only is it rude, but it is harder to understand. Thank you.

**Statistics (?)**

What is your question?

**Math**

Let x = wheel x + 2x + 3x = 60 Solve for x, then 2x and 3x.

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

**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.

**math**

one hundred thousand two hundred and three 100.203 * 10^3