# Posts by PsyDAG

Total # Posts: 23,393

**Math**

3t = 5c

**Math**

The field is 30 by 10. Figure it from there.

**science**

From Google: Eukaryotic organisms, such as algae, fungi, and higher plants, have multilayered cell walls composed in large part of either cellulose or chitin . Cellulose and chitin are polysaccharides , meaning they are composed of many linked sugar molecules.

**science**

agree

**Math**

You figured the area. The athlete runs the perimeter = 50 * 4 = 200 Kilometer = 1000 meters. (3*1000)/200 = ?

**STATISTICS**

.95 = mean ± Z(SD) = 1050 ± 290Z Look in the back of your statistics textbook for a table called something like “area under normal distribution” to find the proportion/probability (±.025) and its Z score. Insert the Z score into the equation ...

**math (?)**

By what process?

**Statistics**

Have you considered the fact the the king and/or the 10 could be a heart? Consider those probabilities. Either-or probabilities are found by adding the individual probabilities.

**Math**

A is right.

**Math**

Disagree. Watch out for "always" and "never" answers.

**math**

2/3 * 3/4 = ?

**Math**

Cannot diagram here. Distance A-C, use Pythagorean theorem. https://en.wikipedia.org/wiki/Pythagorean_theorem Total distance = 9 + 12 = ?

**Health (Ms. Sue Check Please)**

Not knowing WHY the doctor is worried about Kori's cardiovascular health, I would tend to agree.

**Biology**

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

**life sciences (?)**

Lack data. No leaves.

**English**

1. 3 * 300ml = 3 * .3 liters = .9 liters 2 and 3 are even less, but 2 = .005 liters, 3 = .015 liters 4. is a possibility, but that is too much water. It would be better to express all in liters, but you would want them to drink more than .0015 liters a day.

**English**

All are okay, but 2 is better than 1. 3. would be like using weights that are too heavy. 4 would probably relate to frequency or duration of exercise. 5 would relate to frequency. 6. would relate to duration.

**Maths (?)**

No data. Cannot draw a flow chart here.

**Math**

However, I will give you a start. Convert all to cubic yards. Even so, there are several problems in making a comparison. Here are some examples: Knowing the size of the yard = (80/3)^2 sq yards is not really helpful, because you don't know the depth of the soil that will ...

**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.

**Biology-Genes**

Use a Punnett square. https://en.wikipedia.org/wiki/Punnett_square Red fish are all rr. Green fish are either GG or Gr.

**Math (?)**

No tables shown. Cannot copy and paste here.

**mathematics**

Cannot draw on these posts.

**algebra**

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 "areas under ...

**Mathematics Algebra**

value ? (b^2-a^2)

**Math**

Welcome

**Math**

you got it!

**Math**

1) 8/500 = x/20,000 2) 15/50 = x/2000

**MMATH08**

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. Second, it would help if you proofread your questions before you posted them. If you are using only "10 aquare" tiles of gigantic size: ...

**Algebra**

5) Multiply first equation by 5. 5x - 20y = 60 6) Multiply first equation by 4. 4y - 24x = -12 Subtracting first equation from the second, what does that tell you?

**Science (?)**

Lack data.

**Science**

agree

**Algebra**

x/3x = 1/3x = 1/3(100) = .333

**genetic variation and biotechnology**

agree

**Science**

It has to pump blood into the whole body.

**Maths**

See following post.

**English**

1. Disagree. Why would she consider it a "slap in the face"? 2. Disagree. 3. Agree

**Math**

Disagree. There are only 6 sides of a cube.

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/2 * 3/6 = ?

**Mathmatics plz help**

agree on both

**math (?)**

What is your question? Cannot copy and paste here.

**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. However, I will start you out. 3g + 4g + 8.4g = 15.4g 1g = 1000mg 3000mg + 4000mg + 8400mg...

**math**

Glad you figured it out by yourself.

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Either-or probabilities are found by adding the individual probabilities. I will do one problem for you, so you can see the ...

**science**

Cannot copy and paste here.

**Statistics**

Work from the opposite end. !! or more = 3/36 = 1/12 5,6 6,5 6,6 1 - 1/12 = ?

**Math (?)**

No frequency table. Cannot copy and paste here.

**Algebra**

Assuming you have no typos: y = 500 + 2.45x

**English**

When you are suddenly very afraid, your adrenaline production jumps, causing many bodily changes.

**English**

2, 4, 6 and 8 are correct. 10. possibly, probably, likely?

**foreign language**

From Google: Translated roughly, it means "I bow to the God within you", or "The Spirit within me salutes the Spirit in you"

**statistics(?)**

What is your question?

**Statistics**

Disagree. 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 of the Z score. Multiply by 100.

**math**

Cannot graph here.

**Statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 2/3 * 2/3 * 1/3 = ?

**Science**

Since this is not my area of expertise, I searched Google under the key words "calculate specific heat and thermal energy" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=calculate+specific+heat+and+thermal+energy&ie=UTF-8&oe=UTF-8...

**Math**

What about Bosnian's answer don't you understand? Which answer can be boiled down without a square root sign?

**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. However, just as a start, I disagree with your first answer. Also, "five over eleven&...

**maths**

A = 105 - S 4A + 2S = 360 Substitute 105-S for A in the second equation and solve for S. Insert that value into the first equation to solve for A. Check by putting both values into the second equation.

**math**

I completely agree with you. My only thought is that there are typos in the book. Your typo: 25/81 ? .81

**Statistics**

3-7 = 5 possibilities * 4 suits = 20 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 20/52 * (20-1)/(52-1) = ?

**statistics**

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 of the Z score. Multiply by 100 to get the percentage.

**math**

.096 rounds to .10. If the last significant digit ?5, round up. If not, just delete the digit.

**algebra**

Between 25% and 75% of the scores is 20 points.

**Math**

3*10 + 10,000/12 + 1000 = ? feet

**Math**

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

**Rational number**

If you convert each fraction to a decimal, it will be relatively easy to do.

**Math**

1-3. Wrong. Pay attention to ± signs. Did not go further.

**Number problems**

Starting with 12, go up the line with numbers that factor with 3 until you find one that sums to 1/3 the value. That's what I did to get the answer.

**Psychology Stats and Research**

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. I will start you out. State with your own notations. Ho: no difference H1: difference Z = (...

**Psychology**

An example of testing for the truth would be the validity scales of the MMPI. https://scholar.google.com/scholar?q=mmpi+validity+scales&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwi70PP18NHTAhXklFQKHV9QClkQgQMIKjAA

**Algebra B (?)**

Not sure of your notation. 4/?150 divided by ?189x?

**math (?)**

Divide it equally in terms of how many parts? Can pour from 5 liters into 3 liters to get 4 equal parts of 2 liters.

**statistic**

Find the mean first = 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 Use the previous process...

**statistic**

Use same process shown in previous post.

**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. Find table in the back of your statistics text labeled something like "areas under ...

**Decision tool (?)**

What data?

**Science**

They are both processes of cell division.

**Math**

If the median is from a larger population, then it can be true. If the median is just for the 10 students, then it cannot be true. The median is the 50th percentile.

**Math**

The mean serves as a fulcrum for the distribution, so it is affected by extreme scores in either direction. If they had a day in which they sold very many cameras, this would bias the mean. I would choose the median (50th percentile).

**math (?)**

What is your question?

**math**

Agree

**maths variation**

If this is in relation to a previous question, you need to restate that question.

**Statistics (?)**

What is your question?

**Statistics**

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 related to the Z scores.

**statistics**

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. Also, we do not have access to those studies. However, for (a) an experiment has: An ...

**Biomechanics (?)**

What do you need to solve?

**Mrs Sue Math**

Does D = d? 18d = -18 Take it from here.

**maths**

Variation? 15 sec = 1800m 15/1800 = x/648 Solve for x.

**Biology**

https://en.wikipedia.org/wiki/Punnett_square

**Statistics**

Do not understand "x~N(80,100)". 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 related to the Z scores.

**Educational Tech**

Agree

**math**

Let x = one number and x+7 the other. x + x + 7 = 31 Solve for x, then x+7.

**math**

18.45/3 = 6.15 195/6.15 = ?

**ELA Please check my work**

A pronoun (I, me, he, she, herself, you, it, that, they, each, few, many, who, whoever, whose, someone, everybody, etc.) is a word that takes the place of a noun. In the sentence Joe saw Jill, and he waved at her, the pronouns he and her take the place of Joe and Jill, ...

**Statistic**

Arrange in order of value. It would range from the 4th ranked to the tenth.

**Systems Analysis and Design**

Cannot draw on these posts.

**Math (?)**

Regroup? 99 - 91 = 8

**Statistics**

99% = 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/probability (.005) and its Z score. Insert data into above equation.

**statistics**

a-c) Z = (score-mean)/SD Find table in the back of your statistics text labeled something like like "areas under normal distribution" to find the proportion/probability related to the Z scores. (d,e) Look up % in table to get Z score.