# Posts by PsyDAG

Total # Posts: 23,417

**Math Algebra**

L = 3W-2 L*W = 65 (3W-2)W = 65 3W^2 - 2W - 65 = 0 Factor to solve for W, then insert W value in the first equation to find L.

**Math**

Disagree. Jason scored at the lower quartile.

**Maths**

4/9*90 = 40 are sheep, 1/3* 90 =30 are cows, 1/10*90 = 9 are horses. What is left?

**Vocabulary**

If you are narrating what is happening now, it is correct. If not, "gulped" should be used.

**psychology**

chemical, biochemical, physiological?

**math (?)**

No picture. Cannot copy and paste here.

**Math (?)**

Need more data. What is BAC?

**Math (?)**

No figure. Cannot copy and paste here.

**maths**

18

**bio**

Assuming tall is dominant and short is recessive, use Ts and ss in a Punnett Square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8

**Statistics**

Look in the back of your statistics textbook for a table called something like “area under normal distribution” to find the proportion between the mean and Z = 1.37.

**Satistics (?)**

There is no data on stink bugs here.

**math**

Get common denominator. x/50 + 2x/50 + 3x/50 + 4x/50...+ 100x/50 = ?

**math**

What is missing in the "..."?

**science**

https://www.google.com/search?client=safari&rls=en&q=methods+to+reduce+global+warming&ie=UTF-8&oe=UTF-8 Don't just copy the material. Express the ideas in your own words. Although this will take more time and effort, you will learn more.

**math (?)**

It would help if you proofread your questions before you posted them. "like this..." ??? Cannot copy and paste here.

**USG**

Judge on previous decisions.

**math**

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 I'll let you do the ...

**math statistic**

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. 95% = mean ± Z(SEm) SEm = SD/?n Find table in the back...

**maths**

Circumference = d? Each competitor needs d? *60 cm.

**math**

P = 10W L = W+9 2L + 2W = P 2(W+9) + 2W = 10W Solve for W.

**math**

7x + 5.5 ? 19.5 Solve for x.

**Math**

Not knowing how big the garden is or how far apart the flowers have to be planted, I can't tell you.

**Algebra/ please help!!!!**

I don't agree. Annual Wage = $17*40*52 = $35,360 (No vacation?) Annual Rent = $934*12 = $11,208 Unless he is earning income from a rental, the rent is subtracted from the wages.

**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 your later post.

**math**

95% = 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 (±.475) and its Z score. Insert Z and other data into above equations to check.

**Math Breakdown/ please help!!**

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 your later post.

**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.

**Statistics**

.59963

**English**

B indicates emotion.

**English**

The worst was yet to come. Still shedding tears, I climbed back into the hearse to return to a home, which would never be the same again....

**science**

https://www.google.com/search?client=safari&rls=en&q=humidity+level+vs+dew+point&ie=UTF-8&oe=UTF-8

**science**

https://www.google.com/search?client=safari&rls=en&q=solar+vs+lunar+eclipse&ie=UTF-8&oe=UTF-8

**algebra**

Cannot draw Punnett square here. However, using two RL's would do the job.

**statistics and probability**

To round to whole people, you would round up if it was .5 of a person or greater.

**math (?)**

No table. You cannot copy and paste here.

**plant **

Place the child twice as far from the fulcrum as the father. https://www.google.com/search?client=safari&rls=en&q=mechanical+advantage+of+seesaw+lever&ie=UTF-8&oe=UTF-8

**ratio pls help asap**

180/9 = 20 3*20 = 60 2*20 = 40 4*20 = 80 Use same method for the second problem.

**math**

2,000,000/5 = 400,000 2.61*6.14*.0043*400,000 = ? cubic inches 12*12*12 cubic inches = 1 cubic foot Solve for cubic inches, then feet.

**Statistics**

https://www.google.com/search?client=safari&rls=en&q=Chebyshev%E2%80%99s+theorem&ie=UTF-8&oe=UTF-8

**Math**

Cannot draw on these posts.

**Health**

This might also help. http://drdavespsychologypage.homestead.com/Learning_Hints.pdf

**Math**

You don't have to print "dollar sign." "$5" is adequate. This is what I assume you mean: You have $20 to spend on taxi fare. The ride costs $5 plus $2.50 per mile. $5 + $2.50m ? $20 Solve for m.

**Psychology**

It has been a long time since I used the Strong, but I would go with C for both.

**Statistics**

Use the Chi-square (X^2) method. 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.

**math**

First prize = 5/200 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1st and 2nd Prizes = 5/200 * (5-1)/(200-1) = ?

**Maths**

Distance = rate * time D = 60km/h * 1/4h = 15km 15km = 36km/h * h Solve for h and convert to minutes, if necessary.

**maths (?)**

Lack data. Why should there be any peanuts?

**maths (?)**

It would help if you proofread your questions before you posted them. 30 ?

**Science**

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.

**Heath**

You cannot copy and paste here.

**math**

Cannot draw Venn diagram here.

**math**

x/5 = 60/3 Solve for x.

**science (?)**

No illustration. Cannot copy and place here. I searched Google under the key words "sporophyte" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=sporophyte&ie=UTF-8&oe=UTF-8 Do the same with the other terms. In the future, you can ...

**math**

Thousands digit must be 2. 2650

**English writting**

Goggle "barbie dolls." Don't just copy the material. Express the ideas in your own words. Although this will take more time and effort, you will learn more.

**Maths**

"dam"? Assuming the side of the square has 16.5m: 16.5m * 16.5m = ??m^2 Don't just copy the material. Express the ideas in your own words. Although this will take more time and effort, you will learn more.

**Maths**

385/500 = ? Multiply ? by 100.

**Math**

How big/long is the track? 1/4 Track + 3/8 mile

**Math**

2. B and C 3. How many CDs cost $30.00?

**Math**

Perimeter = 2(4.04) + 2(1.707) Volume = 4.04 * 1.707 * .078 Convert to cm. 1 inch = 2.54 cm

**science (?)**

It would help if you proofread your questions before you posted them. What do you want to find?

**science**

1. agree 2. Agree 4. disagree 5. what is your choice?

**Mathematics**

Is there a typo?

**Mathematics**

Multiply by 2. 6cm = 63 km Divide by 6. 1cm = 1.5km

**geometry needs help**

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

**math (?)**

No map. Cannot copy and paste here.

**Math**

(36-6)/36 = ?

**Algebra**

x = y + 2

**Algebra**

C = (F-32)5/9

**Math**

X - 1/2x - 1/2(1/2x) = 10 Solve for x.

**statistics**

The base would be between $20 and $30, and the height would be he number of shares.

**math (?)**

What does X stand for?

**division**

Does it need to have decimals? 8/4 = 2 8/2 = 4 8/8 = 1

**Psychology**

agree with A

**Statistics**

Z = MD/SEm SEm = SD/?n Online "^" is used to indicate an exponent, e.g., x^2 = x squared. SD = ?s^2 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 ...

**science**

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

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 10-2+3*5 = 8 + 15 = 23

**math**

Since 20 is an even number, there must be an even number of 3-point baskets. 2 3-point and 7 2-point baskets.

**Social Studies quiz PLEASE HELP**

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. What are your answers?

**math**

L * W = Area 120 * W = 480 Solve for W.

**Algebra (?)**

What matrix? Cannot copy and paste here.

**Science**

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

**Maths**

2L + 2W = perimeter. 2L + 2(3) = 20 Solve for L.

**math**

W * L = Area W * 4 3/8 = 9 13/18 Solve for W. 2W + 2L = perimeter

**Math**

10 * 1/2 = ?

**math**

I don't know. If you have a spinner, how many possibilities are there on the spinner?

**math**

It would help if you proofread your questions before you posted them. What is the situation? If P(7) = 3/8, then P(not 7) = 5/8.

**Biology**

Welcome

**Biology**

Do a Punnett square. Amber is right.

**Biology**

Capitals indicate dominant, and since both letters are the same, it is homozygous.

**math**

26 * 10 * (10-1) = ?

**math**

M = S/2 1.25M + 1.75S ? 20 Substitute S/2 for M in the second equation and solve for S.

**math**

12 * 2x = 18 Solve for x.

**Maths**

It would help if you proofread your questions before you posted them. Typo? You have the answer in your question, "2/7 of the class are left-handed boys".

**probability**

a. 14/40 b. 26/40 c. Either-or probabilities are found by adding the individual probabilities.

**Math**

Substitute 3+2j for f in the second equation and solve for j. Insert that value into the first equation to solve for f. Check by putting both values into the second equation.

**psych**

Agree with all except 9.

**psych**

1. Disagree. What is variable about it? Agree with 2, 3, 4, 5, 6. 7. Disagree. Does it make any difference about how long it takes to lose 5 pounds?

**MATH**

Agree 1.075-(-3.1) = 4.175