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Posts by PsyDAG

Total # Posts: 23,313

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.

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

math (?)
Cannot decipher your data.

Statistics
a) yes b) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 2/4 * (2-1)/(4-1) = ? c) 2/4 * 2/(4-1) = ?

Algebra
The vertical bars indicate absolute value, regardless of sign. 16/7

probability and Stats
SEm = SD/?n I could only find it from b.

Maths
Q1 — 1/6 Q2 — DK, more data needed, but would guess very unlikely Q3 — DK, more data needed, what was their past performance?

Math
Let x = ten and y = 20 cent coins x = y+12 .10x + .20y = 5.40 Substitute y+12 for x in the second equation and solve for y. Insert that value into the first equation to solve for x. Check by putting both values into the second equation.

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.

maths(?)
Clarify question.

math
L = W + 11 2L + 2W = 106 Substitute W+11 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.

Statistics
It would be okay to compare the Z scores, but not the raw scores, from each test. In order to do that, you would have to know the mean and standard deviation of each test, assuming they were all normally distributed.

math
The empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean. The empirical rule can be broken down into three parts: 68% of data falls within the first standard deviation from the mean. 95% fall within...

Statistics
(a) yes (b) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/6 * 1/6 = ? (c) same odds (d) Either-or probabilities are found by adding the individual probabilities.

Statistics
Agree with all answers

math
D = 6M (D + 12) = 2(M + 12) Substitute 6M for D in the second equation and solve for D. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.

Maths
(500-5)/500 = ?

Maths
2/3x = 1/4x + 500 Solve for x.

Science
agree

Discrete Math
a) #red/total = ? b) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. c) Either-or probabilities are found by adding the individual probabilities. d) (1-c)^5 e) 6/38 * (1-6/38) = ?

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 later post.

Statistics
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 related to the Z score. Multiply by 1100.

Statistics
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 related to the Z score. Multiply by 1900.

math
I will start you out. a) There are 36 possibilities. 6,2; 2,6; 3,5; 5,3 are the only combinations that = 8. b) P(even) = 3/6 = 1/2 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual ...

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

Math
Sí, sí, c.

math
(a) 1/4 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (b) 1/4 * 1/(4-1) = ?

math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 4/12 * (4-1)/(12-1) = ?

Math
I don't know why you have the second step. 2s < $25 s < $12.50

Math
(24,710.40-22,464)/22,464 = % increase 1.(% increase) * 24,710.40 = ?

math
(-5)(-2) = 10

math
It would help if you proofread your questions before you posted them. [34+?] Also, online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.

Algebra
$6.50h = m h = 4.25

math
(1/12)x = 5/8 2/24x = 15/24 2x = 15

Spanish
Sorry, pressed wrong button. Agree, second one is incorrect Third is correct, but "yo" is redundant.

Spanish
No, trabajadora is a noun, not an adjective.

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

math
W = 175/D W-5 = 4(D-5) Substitute 175/D for W in the second equation and solve for W. Insert that value into the first equation to solve for D. Check by putting both values into the second equation.

Math (?)
Cannot post flow chart. Even so, need to let us know the three numbers.

Algebra
agree

STATISTICS
(a) 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 that relates to the Z score. (b,c) Reverse process from proportion to Z score. Insert into above ...

science
True

botany?
Since this is not my area of expertise, I searched Google under the key words "biggest desert plant" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=%22biggest+desert+plant%22&ie=UTF-8&oe=UTF-8 In the future, you can find the ...

algebra
20 + .40(x-60) = C Insert cost and solve for minutes(x).

algebra
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.

Spanish
Don't have post here.

Science 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.

algebra
If t = $6 and s = $3, and you buy 5 notebooks 3t + 2s ≤ $24 Do you want > 5 notebooks?

Science
Which science? Species?

Ela
Unless a specific problem is posted, we cannot help you.

Drivers ED
agree

Science
traction?

algebra
-15 + 5x + 4 = 5q - 11 5x = 5q - 22 x = q - 22/5 I assume this is what you wanted to know, but I am not sure, since you did not ask a question.

Math (?)
Lack data. Why do you multiply by 4?

maths
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.

Science Biology
Each mutation has an equal probability of occurring.

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