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Posts by PsyDAG

Total # Posts: 23,478

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.

Math
1. x > 17 2. 3x ≤ 21 x ≤ 7 3. 5a < 20 a < 4 2t+8 ≥ -4t-4 6t ≥ -12 t ≥ -2

Math
19

Statistics (?)
It would help if you proofread your questions before you posted them. No values given. 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 ...

science
D = r * t D = 65 * 7/3 = 151 2/3 151 2/3 = 65t 151 2/3 = 43t Compare the two.

Math
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Move decimal place 5 points to the right. 1.42*10^5 = 142,000

psy/315 (?)
No table.

value
From your data: x + 9 = 2 1/4x = 2.25x Solve for x. However, this does not solve to be a whole number. Typos?

Math
Assuming that the person has to completely refill an empty tank: 35d + 19.95d + 19*3.40 = b

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

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

Statistics
-1Z < µ < +1Z

Math
Since the increase for any two years is never greater than 100, what would you say?

Biology
the sex cells, sperm or egg.

Algebra
Use Pythagorean theorem. Triangles needed for what? For one diagonal, only gives two triangles.

Health!
I would suspect that it is close to zero, since their blame and aggression is typically expressed toward others. https://www.google.com/search?client=safari&rls=en&q=anitsoical+personality+disorder+suicide&ie=UTF-8&oe=UTF-8

science
It would depend on the type of statistics. https://www.google.com/search?client=safari&rls=en&q=statistical+diagrams&ie=UTF-8&oe=UTF-8

statistics (?)
It would help if you proofread your questions before you posted them. You cannot copy and paste here. What do you want to find?

mathematics
.9x = 27 Solve for x.

Science, Biology
Do they eat the same food? If so, they would compete for the same source. However, the effect would depend on how plentiful the food source was.

College algebra
-2.4+(5.2) = 5.2-2.4 = 2.8

Math (?)
It would help if you proofread your questions before you posted them. Lacking data.

Math
2 Twelve packs (24) = 7.98 Case (24) = 6.88 Compare.

Math
3.99 * 2 = 7.98

Math
8/3 < 12/4

Algebra
-(3x-2y) -(5x-4y) = -3x+2y-5x+4y = 6y-8x

math
Diameter = 2 cm, so 2 cm width would only get 5 disks. Thus 4cm is minimum, but will get 10 disks.

math
Cannot diagram here. 36/4 = 9

science
agree

Math
If you change each answer to decimals, the answer will become clear. For example: .83 < .67

math
Distance traveled to and distance from a particular goal from a particular starting point (negative relationship).

Math (?)
Lacking data.

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 12/13 * (12-1)/(13-1) = ? (Assuming that the person does not want a double portion of any topping)

8th grade math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. When multiplying/dividing, exponents are added/subtracted respectively. 1.4*10^9/1.28*10^4...

psychology
I would go with A.

Algebra
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. When multiplying/dividing, exponents are added/subtracted respectively. (6*10^-5)(3*10^4...

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