# Posts by PsyDAG

Total # Posts: 23,959

**Math**

2A - 3(A-6) = A Solve for A.

**Math**

Does "hence" mean from "10 years ago"? F = 2S F-10 = 4(S-10) Substitute 2S for F in the second equation and solve for S. Insert that value into the first equation to solve for F. Check by putting both values into the second equation.

**Science (?)**

No equations given.

**AP Statistics - Chapter 6**

1/6^10 * 5/6^10

**biology**

Instead of lungs, insects breathe with a network of tiny tubes called tracheae. Air enters the tubes through a row of holes along an insect's abdomen.

**Science**

What about it? Need to be more specific. https://www.google.com/search?client=safari&rls=en&q=athlete's+foot&ie=UTF-8&oe=UTF-8

**math help pls**

agree

**MATHIN-HELPN!**

a. 3 b. 1/2

**Anatomy**

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

**Math**

3/4x + 3.5 = 6.5 - 2/3x Solve for x.

**6 grade math**

Let x = length of longer pieces 2x + (x-15) = 156 Solve for x.

**Algebra**

Eight-sided? Assuming a 1 on one die, of the 8 sides of the other die, 1, 2, 3, 4 or 5 of the 8 ? 6. 5/8 = ?

**Algebra**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 3/5 * (3-1)/(5-1) * (3-2)/(5-2) = ?

**Math**

50/4.80 = x/10.80 Solve for x.

**math**

15V + 9

**Science**

How far away is he standing?

**cms (?)**

What numbers?

**Mathematics**

What are the units for land measurement?

**Math work**

30 + 30 = 60 cards from cousin X - 1/4X - .2X - .5X = 60 Solve for X.

**math**

None are rounded to the nearest pound. However, unless there are typos, the closest answer would be C, since I estimate 21/3 = 7.

**Statistics**

SEm = SD/?n 25 = 300/?n Solve for n.

**Math**

M = 3S (M+10) + (S+10) = 76 Substitute 3S for M in the second equation and solve for S. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.

**Math check**

Good estimates.

**Math Statistics**

SEm = SD/?n 25 = 100/n Solve for n.

**Statistics**

SEm = SD/?n 25 = 100/n Solve for n. Are you also anonymous? 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.

**Stats**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 20/50 * (20-1)/(50-1) = ?

**SCIENCE**

No diagram. Cannot copy and paste here.

**math**

The longest one would be 5 by 1 (perimeter = 2L + 2W). Could also make 4 by 2 or 3 by 3.

**maths**

a) 800/20 + 1 b) 800/20 c) 20 * 21

**Math**

(12x-32)/4

**maths**

Think it again. 3 red, 4 black, 3 red, 4 black, 3 red, 4 black, 3 red, 4 black, 3 red, 4 black.

**math**

That means that the two side lengths are 2/3 perimeter, leaving 1/3 to be divided among the two widths.

**Maximal area and dimensions of a window**

Maximal area of rectangle is a square. 4w = 500 Solve for w.

**math**

Welcome

**math**

40,000 = 5000 + 2500m Solve for m.

**math**

3n - 26 > 10 Solve for n.

**math**

100(103/237) = ?

**math**

If you got one of each on the first three pulls, what do you think would happen on the fourth pull?

**Math**

one thousandths

**Statistics**

P(soph) = .25 P(non dorm soph) = (1-.60) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

**Math**

Steve got 60 cards from his cousin. x - .25x - .20x - .5x = 60 Solve for x.

**Biology**

Not knowing how they would interact, I would say B.

**Math**

11 !/4 = 90/8 1 7/8 = 15/8 90/15 = ?

**statistics (Partial)**

Why would you have an odd number of socks of any color? 2. min = 2, max = 5 3. 7/19 4. 4/(19-1) = ?

**Math**

7/28 = ?

**math**

How would you know if a score is deviant or relatively expected?

**maths**

Multiply second equation by 2. 4x + 2y = -8 3x - 2y = 1 Add the two equations to solve for x. Insert x into one of the equations to solve for y.

**Heath**

Only have 7 answers for 14 questions. If the order for the first 7 are correct, the first 3 are wrong, 4 is right, 5, 6 wrong, 7 right. It seems like you are just guessing rather than searching for the facts. Look up the terms.

**maths**

(1-3/5)x + 26 = 12/17x Solve for x.

**Problem solving**

Cannot draw here. Also, with your limited data, we don't know what you are supposed to do either.

**math**

3a - 4 < 5 add 4 to bot sides, then divide both sides by 3.

**English**

"Because" would be better than "in that." He was sad, because his father passed away.

**science**

Because of its small size.

**statistics**

(50*40) + (5*100) = ?

**statistics**

(60+85+92+80)/4 = ?

**Matb**

He has 3 animals with 4 legs and 5 animals with 2 legs. However, from your data, I don't know if the 4-legged animals are pigs.

**Math grade 6, four operations**

B = 38-S (B-4) = 5(S-4) Substitute 38-S for B in the second equation and solve for S. Insert that value into the first equation to solve for B. Check by putting both values into the second equation.

**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.

**math ( i need help asap ) pls**

Agree on all. To indicate greater than or equal to, you can use carat key (>) plus option to give you this, ?.

**Science**

No choices given. Cannot copy and paste here.

**health 7th**

Agree with all.

**algebra 1**

L = 2W 2L + 2W = 76 Substitute 2W for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.

**8thgrademath**

What geometric argument?

**Algebra**

R = 2G .25G + .50R = 5.00 Substitute 2G for R in the second equation and solve for G. Insert that value into the first equation to solve for R. Check by putting both values into the second equation.

**algebra 2**

Cannot copy and paste here.

**Maths**

400 - .4 = ?

**STATISTICS**

It would help if you proofread your questions before you posted them. You are missing some values.

**Maths**

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.

**stats**

You have a lot of extraneous information. 500/47,600 = ?

**Math**

(10-6) + .50 per ride

**Algebra**

To "break the record," it would be any value less than 26 degrees. t ? 25 + 5

**maths**

a) 3 * 7 * 9 = 189 b) 189 - 171 = 18 18/9 = ?

**maths**

1) 1/4 * 2/3 = 1/6 2) 1/3 * 48 = 16 1/6 * 48 = 8 48 - 16 - 8 = ??

**Maths**

His/her baskets would be 8 per game times 6 games. These would only the ones s/he makes.

**statistics**

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 ...

**Stats**

https://www.google.com/search?client=safari&rls=en&q=statistics+t+vs+Z+distribution&ie=UTF-8&oe=UTF-8

**Business**

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

**Math 062**

210/170 = x/252 Solve for x.

**Maths**

a. 30/150 = ? b. 10 + (120-85) = ?

**biology**

If dimples (d) is a recessive trait to non-dimples (N), then each parent could be NN or Nd. If one or both NN, P(N) = 100%. If both Nd, then P(N) = 75%. Thus it cannot be determined from the phenotype of the first child.

**Statisics**

(37-33)/(37-23) = ? (27-23)/(37-23) = ?

**2nd grade math**

8+5 = 13, carry the 1 to the tens column, then 1+3+4 = 8. 38 + 45 = 83

**Algebra**

It would help if you proofread your questions before you posted them. What are the side lengths and what is your question?

**Math**

The first is the absolute value regardless of sign. The second is negative.

**Math**

The first is the absolute value regardless of sign. The second is negative.

**algebra (?)**

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

**math**

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

**Maths**

It would help if you proofread your questions before you posted them. "the first 600 km /h"?

**Science**

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

**statistics**

Here is process: 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 (.0625) and its Z score. Insert data into above equation and solve for score.

**math**

I don't really understand it either. Possibly they are looking for the values that will not have a fraction of cupcake in the solution.

**math**

If I understand the question correctly: 6th, 12th, 18th steps

**English 2 please help**

Agree with all.

**maths (?)**

What is your question?

**statistics**

The variable is number of children, which is discrete. (You can't have half of a child, pregnancy does not count.) Values are 0 to ??

**Math**

It would help if you proofread your questions before you posted them. "5 ten times greater"?

**math (?)**

Table not available.

**Math**

10 + 7*1.5 ? 20.5

**algebra**

P = 4x for small square P = 4(x+2) for large square 4x+2 = 2(4x) Solve for x then x+2.

**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 (.99) and its Z score. Insert data into above equation and solve for score.