Friday
August 1, 2014

Posts by PsyDAG


Total # Posts: 17,990

Math
1/3 + 5/6 = 2/6 + 5/6 = 7/6 = 1 1/6

Math
If the triangle is equilateral, then: 5x - 7 = 2x + 5 Solve for x.

MAT-134 Math XL
9x^4(x^2-7x+4)

Science
mitosis

Math 100
Isn't gross sales identical to plan B? 12(2400) + .09(2400)12 > 32000

math 100
2x>3x-40 An inequality is treated just like an equation, except that multiplying/dividing by a negative value reverses the carat (< to >). -x > -40 x < 40

Biology -Genetics
False, they are also found in all body cells, except only the males have Y.

math
3/7 three chances out of seven

Math
You are welcome!

Math
a. (1 - .25) 10 = x b. 1.25x = 201 Solve for x.

Spanish
Qué

Science
What about spiral shaped?

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 your later post.

6th grade science
The gene for hemophilia is sex-linked, a recessive on the X-chromosome. The daughter must have both Xs with the gene, while the son does not have the gene on his X chromosome. With that information, you should be able to get the parental genotypes.

statistics (?)
What null hypothesis do you want to consider?

statistics
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.

science
The process of body cell replication. https://www.google.com/search?client=safari&rls=en&q=mitosis&ie=UTF-8&oe=UTF-8

science (?)
What is a "prac"?

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

Math (?)
We haves no idea of the arrangement, especially the corners.

math
Temperature > -20º F

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 3
Population is the total group, while the sample is a portion of that total.

math Standard deviation
Z = (score-mean)/SD Insert values and calculate.

math probability
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 related to the Z score.

math
360 * .80 = ?

algebra
A = 450 - C 70A + 40C = 27750 Substitute 440-C for A in second equation and solve for C. Insert that value into the first equation and solve for A. Check by inserting both values into the second equation.

home,school &COMMUNITY
Also, please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you.

Algebra help PLEASE?
V = π*r^2*h Insert values and calculate.

math
Divide the amount of change by the original amount. (4-12)/12 = ? (20-15)/15 = ?

Math oops
3.5y = 10.5 - 2.1 = 8.4 y = 8.4/3.5 = ?

math
(76 - 51)/76 = ?

Math
7/8(20) = 17.5 1/4x = 17.5 Solve for x.

math
What is 1/2 as decimal or percent?

Math (?)
Possibly it might signify the volume of a cylinder. Cannot solve without equal sign for an equation. To simplify, multiply the terms.

Spanish
With my basic Spanish: How do you want the means of communication to be/function?

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

math
We cannot show visual models on the posts. Draw a diagram?

science HELP ASAP!!!!!!!
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
L = 2W + 3 2L + 2W = 72 Substitute 2W+3 for L in second equation and solve for W. Insert that value into the first equation and solve for L. Check by inserting both values into the second equation.

psychology
Agree

interpersonal communication
http://drdavespsychologypage.homestead.com/Relationships__Starting_and_Continuing.pdf

interpersonal communication
You cannot copy and paste here.

education (?)
What business plan? 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.

statistics
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. Percentile rank is the proportion below a particular score. OR… http://davidmlane.com/hyperstat/z_t...

math
Mode = most frequently occurring score(s) Median = arrange in order of value, then find middle-most score. Mean = 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 sc...

Dividing decimals
Move decimal place one to the right for both and then proceed with normal long division.

Statistics (?)
Data missing.

Statistics
99% = mean ± 2.575 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. To include each end, double proportion.

SAT prep help
-2x+5=2-5+2x Put like terms on the same side of the equation by adding 3 and 2x to both sides. 8 = 4x

science (?)
It would help greatly to know the context of the term.

Pys 202
a case study?

Geometry
V = hπr^2 h = V/πr^2 Insert values and solve for h.

science
Average about 28 days. Diagram lacking. You cannot copy and paste here.

math (?)
No line of best fit. You cannot copy and paste here.

Biology
agree

statistics
Either-or probabilities are found by adding the individual probabilities. .43 + .14 = ?

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

Math (?)
Graphs not shown, Cannot copy and paste here.

math
C = πd d = 2r In your case: C = 50 * π * 2r Insert values and calculate for C

Math (?)
What is "your original set"?

Statistics
If "the probability of birth is equal in all months," that means that you would expect 10 students to be born in each month. Would either distribution apply in this case?

Statistics
Are the means from the same population or different?

Science
Agree

math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1. 35 + 50 + (25/5 * 5) - (8+11) = 110 - 19 = 91 2. 24/8 + 31 = 34 3. 3 + 2(7) = 17 4. 5(3) - 16 = 15 - 16 = -1 5. right.

BIOLOGY
Not willfully, but random mutation does occur.

ethics
I disagree. http://www.utilitarianism.net/singer/by/1972----.htm

consumer math
($15,876 * 1.0525) - .1($15,876) = ?

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
Volume = height * Base Therefore: V/B = h Insert values and calculate.

ethics
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.

algebra
Do you mean 5 -(+2)? 5 - (+2) = 5 - 2 = 3

Algebra
With 2π factored out… (x^2 + 4x + 4) + (x^2 + 7x + 10) = 2x^2 + 11x + 14 or 2π(2x^2 + 11x + 14)

math
81 > n^2 = (-8)^2

math
35 + 35 = 70 (?)

Math
-6x^2 + 15x

Math 102
(30.60-18)/18 = ?

math
(8*32) - 52 = ?

Alegbra
Substitute 4c for d in first equation and solve for c. Insert that value into the second equation and solve for d. Check by inserting both values into the first equation.

Math
15.025

Psychology
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results. Extraneous variables — other than the independent ...

Psychology
Responses consistent over time, places and persons are attributed to one's personality. Consequences to an organism's responses are the key relationship in operant conditioning. Rewarded responses will continue or increase, nonrewarded responses will go to extinction. ...

health
http://drdavespsychologypage.homestead.com/AIDS_in_Arizona.pdf

Maths (?)
We cannot see the figure. You cannot copy and paste here.

statistics
Z = (score-mean)/SD Either use the handout or 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.

Mathematic
1000

math
4(6+2) - 6 = 26

Science (?)
Missing needed data. Cannot copy and paste here.

algebra
2L + 2W < 330 L < 90 180 + 2W < 330 2W < 150 W < 75

math (?)
What do c and d signify?

math
7.5 mm

math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. .06x = 9.33 x = 9.33/06 = 155.50

Math
5 + .04t < 2 + .10t 3 < .06t t > 3/.06 = 50

MATH (?)
How many of each color are in a package?

math
(2.50-1.75)M - 40 = 550 .75M = 590 M = 590/.75

Algebra Readiness
The previous post is for the square cake. Need more data for the "heart cake."

Algebra Readiness
L = W = 8 2W + 2L = Perimeter W * L = area

behavioral statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities to compare their Z scores (the most common type of standard score).

Math
(2*6+3)^2 > 175 15^2 > 175 225 > 175

Statistics
Don't have a TI-84 calculator, but.... 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 (.80) related to a Z score. Insert that value into the above equa...

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