# 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

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

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

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

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 (?)

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

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