# Posts by PsyDAG

Total # Posts: 23,198

**Languge arts (?)**

What is a "tang town"?

*May 19, 2016*

**math !**

Welcome

*May 19, 2016*

**math !**

1) 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. 2) not an inequality. 60/15 = 4 3) anything < 14 ...

*May 19, 2016*

**math**

75/1.5 = 50 mph 325/50 = ?

*May 19, 2016*

**geometry**

the first two are correct, but I can't answer the following because the figures are not given.

*May 19, 2016*

**Artificial Intelligence**

If B is pardoned, either A or C will be executed, 1 out of 2.

*May 19, 2016*

**Science (?)**

What are your choices? Minerals?

*May 19, 2016*

**math**

It would help if you proofread your questions before you posted them. "1 cm : 0.5 cm"?

*May 18, 2016*

**Language arts**

No need to correct.

*May 18, 2016*

**Math (?)**

No diagram.

*May 18, 2016*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Received placebo (1-.80) = .20 Showed improvement (1-.62) = .38

*May 18, 2016*

**maths geometry (?)**

No angle shown. Cannot copy and paste here.

*May 18, 2016*

**Math**

How can you "toss three coins and get one head and one tail"?

*May 18, 2016*

**math**

Cannot graph here. I will use substitution. l = k + 150 l + k = 900 Substitute k+150 for l in the second equation and solve for k. Insert that value into the first equation to solve for l. Check by putting both values into the second equation.

*May 18, 2016*

**Math**

V (round) = π(r^2)h V Rectangular = 6*9*2 A (round-bottom) = 2πrh + πr^2 A (rect.-bottom) = 6*9 + 2*2*9 + 2*2*6

*May 18, 2016*

**Spanish**

1. right 2. wrong 3. right 4. wrong 5. right 6. wrong 7. DK 8. DK 9. right

*May 18, 2016*

**Math**

V = π(r^2)h *3 = ?

*May 18, 2016*

**math**

To compare more easily, change to decimals. 1/4, 1/3, 2/3, 5/7 = .25, .33, .67, .71

*May 18, 2016*

**math (?)**

What is the original distribution?

*May 18, 2016*

**math for IT(?)**

Need data. What is the distribution?

*May 18, 2016*

**Math (Anon.)**

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. Second, there are no figures. You cannot copy and paste here.

*May 18, 2016*

**Math**

S = E 2S = 2E = E - 4 + 40

*May 18, 2016*

**Math(?)**

No table. Cannot copy and paste here.

*May 18, 2016*

**statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.18) and its Z score. Z = (score-mean)/SD

*May 18, 2016*

**biology**

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

*May 17, 2016*

**math**

W = 450 - C 280C + 125W = 102,750 Substitute 450-C for W in the second equation and solve for C.

*May 17, 2016*

**math**

J = 200/B J-5 = 3B - 4 Substitute 200/B for J in the second equation and solve for B. Insert that value into the first equation to solve for J. Check by putting both values into the second equation.

*May 17, 2016*

**maditsi(?)**

Which offender? What career?

*May 17, 2016*

**Biology**

The sweat loses salt along with fluid, so the person should take water along with the salt tablet.

*May 17, 2016*

**math**

Median = 50th percentile, middle score in value Mean = ∑x/n = sum of scores/number of scores

*May 17, 2016*

**algebra 2b**

99% = mean ± Z SEm SEm = SD/√n

*May 17, 2016*

**math (?)**

How are "pints" awarded?

*May 17, 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.

*May 17, 2016*

**Stat**

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 textbook.

*May 16, 2016*

**8th Grade Electives Advice**

Do you have any long term goals that might fit either one? Journalism will enhance your writing skills, and Creative Photography should enhance you artistic abilities. Which is more important to you?

*May 16, 2016*

**Biology**

Disagree. Google "protist movement."

*May 16, 2016*

**science**

You can use anything that is used for insulation.

*May 16, 2016*

**Statistics**

220/(220+370) = ?

*May 15, 2016*

**Math**

It would help if you proofread your questions before you posted them. How many? Assuming the brick is square, 12 inches = 1 foot, so brick is 1 foot square. 13 * 7 = ? sq ft

*May 15, 2016*

**English**

Learning indigenous languages allows for better communication and indicates empathy for those peoples and their traditions.

*May 15, 2016*

**English**

agree.

*May 15, 2016*

**matha literacy,business studies,Tourism,Accountin**

intense or irrational dislike or fear of people from other countries. You can Google for definitions.

*May 15, 2016*

**Maths**

March-November = 9 months 162/9 = ? ? * 5 = Allowance

*May 15, 2016*

**why dont u tell me**

What is the hardest subject for anyone is the one that is most difficult to understand. It will vary from person to person. What is your hardest subject?

*May 15, 2016*

**English**

What is the status of married women in a traditional African marriage? What may they do and may not do?

*May 15, 2016*

**Maths (?)**

Lacking data. Perimeter = 2 Length + 2 Width

*May 15, 2016*

**Math**

perimeter = 2 Length + 2 Width

*May 15, 2016*

**Math(?)**

Don't understand your a and b.

*May 15, 2016*

**math (?)**

It would help if you proofread your questions before you posted them. "7 and than 13"?

*May 15, 2016*

**Statistics Homework (?)**

What is your question?

*May 15, 2016*

**Math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. I agree with C, but how is that different from D?

*May 14, 2016*

**math (Please help me out)**

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 "...

*May 14, 2016*

**Math**

1) 350/(6 1/3) = ? 2) (1-4/9)500 = ?

*May 13, 2016*

**Statistics Homework**

As indicated previously, if something happened 6 out of 20 times would you call that common?

*May 13, 2016*

**Geometry**

Which numbers indicate the sides (lateral area)?

*May 13, 2016*

**math**

1. wrong 2. wrong 3. wrong 4. Wrong, see definition of coefficient 5. wrong 6. wrong 7. Wrong, When multiplying/dividing, exponents are added/subtracted respectively. 8. Wrong Go back to your text book and read your lessons.

*May 13, 2016*

**Math**

Welcome

*May 13, 2016*

**Math**

All numbers are either odd or even.

*May 13, 2016*

**Safety & Emergencies**

Agree

*May 13, 2016*

**Life orientation**

What will you choose?

*May 13, 2016*

**science 4th grade**

inertia

*May 12, 2016*

**Math probibility**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 11/23 * (11-1)/(23-1) = ?

*May 12, 2016*

**math (?)**

What is your question?

*May 12, 2016*

**Math**

Week = 7 days Month = approximately 30 days.

*May 12, 2016*

**Math**

No

*May 12, 2016*

**psychology**

Do not explain study to physicians and nurses. Have a third party, who does not know the hypothesis, record interactions.

*May 12, 2016*

**math**

16 = 4S S = 4 16+x = 2(4+x) Solve for x.

*May 12, 2016*

**Math (?)**

What Chart? Cannot copy and paste here.

*May 12, 2016*

**chemistry needs help**

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

*May 12, 2016*

**Math**

10^3 for digits (26-5)for first letter 26 for second letter If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

*May 12, 2016*

**science**

You're right that you're right.

*May 12, 2016*

**science**

Google the term.

*May 12, 2016*

**math**

Didn't you indicate the percentage increased by 60%?

*May 12, 2016*

**math**

950%

*May 11, 2016*

**Math algebra**

4x^2(2x+x^3y)+x^y = 8x^3 + (4x^5)y + x^y When multiplying/dividing, exponents are added/subtracted respectively. Anything to the zero power = 1 4x^5 * zero = zero So you are left with 8x^3 +1 = ?

*May 11, 2016*

**Math**

21 * .8125 = 17.0625 Right

*May 11, 2016*

**math**

1 59/100 or 159/100

*May 11, 2016*

**math**

1 3/10 or 13/10

*May 11, 2016*

**Spanish**

First two are right, but I cannot comment on the last two.

*May 11, 2016*

**Pre- Algebra**

Yes.

*May 11, 2016*

**Pre- Algebra**

Disagree with Gucci's answer. .3 * 60 = ?

*May 11, 2016*

**Life science,,maths lit,economic,business study**

Consult your school counselor, who can assess your abilities and interest to suggest possible careers for you.

*May 11, 2016*

**Maths lit, life science,business study,economic**

Consult your school counselor, who can assess your abilities and interests to suggest possible careers for you.

*May 11, 2016*

**Maths (?)**

How is this math? What is your context?

*May 11, 2016*

**Riddle**

We might be able to solve it, if it was in English.

*May 11, 2016*

**stats**

I don't know how you did it in class. 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 for the Z score. How does it compare to your ...

*May 10, 2016*

**Science**

With multiple choice, treat each alternative as a T-F question. If you don't know right answer, before guessing, eliminate wrong alternatives. This increases the chances of your guess being correct. Chemical change.

*May 10, 2016*

**health**

Although all are true, I would pick tissues.

*May 10, 2016*

**math**

What is YOUR reasoning?

*May 10, 2016*

**MATH**

12 * 12 = 144 inches on each side. 144/9 = 16 (16*3)+2 = ?

*May 10, 2016*

**Spanish**

Right, but it requires a following verb.

*May 10, 2016*

**Math**

D = 3S (42+10) + S+10 + D+10 = 100 Substitute 3S for D in the second equation and solve for S. Insert that value into the first equation to solve for D. Check by putting both values into the second equation.

*May 10, 2016*

**Math**

I don't know about "free calculators" mean, but all you need to do is insert various values for x and calculate the y value that matches. e.g., y = 8-8 = 0

*May 10, 2016*

**Statistics Range, Variance, and Standard Deviation**

Range = highest value - lowest Find the mean = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = square root of variance ...

*May 10, 2016*

**Statistics Homework**

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 "...

*May 10, 2016*

**Statistics**

From the sample, with only 6 of 20 earning the degree in 4 years, it does not seem "common."

*May 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. See previous post.

*May 10, 2016*

**Alegebra**

When multiplying/dividing, exponents are added/subtracted respectively. 5^12 5x^2 + 6x - 2

*May 10, 2016*

**science**

The force was not great enough?

*May 10, 2016*

**science**

It would help if you proofread your questions before you posted them. How much did it increase per year? Remember, there are 3 years of interest.

*May 10, 2016*