# 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

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.

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.

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.

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

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) = ?

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

Agree with all.

maths (?)

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.