Thursday

February 23, 2017
Total # Posts: 23,035

**algebra**

mean = ∑x/n 93 = (95+92+98+76+100+x)/6 Solve for x. x ≥ ?

*October 6, 2016*

**Math**

g = 52 - c 2c + 4g = 128 Substitute 52-c for g in the second equation and solve for c. Insert that value into the first equation to solve for g. Check by putting both values into the second equation.

*October 6, 2016*

**Health**

I disagree. You are doing this to "maintain my #1 seed on the tennis team."

*October 6, 2016*

**math please help**

450 + .07s ≥ 681 + .04s Solve for s.

*October 6, 2016*

**Math**

adult size = 5.5 * 15/.75 = ? Child size = 5.5 * 15/.5 = ?

*October 5, 2016*

**Math**

7 * 4 = 28 ft^2 Each plant requires 1 ft^2. What does that tell you?

*October 5, 2016*

**psychology (?)**

What choices? You cannot copy and paste here.

*October 5, 2016*

**Science**

Which weighs more?

*October 5, 2016*

**Statistics**

"at least 4" = 4, 5, or 6. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Online, “*” is used to indicate multiplication to avoid confusion with “x&#...

*October 5, 2016*

**Math**

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. I'll let you do the calculations.

*October 5, 2016*

**Biology**

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

*October 5, 2016*

**statics**

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. However, here is a start. If the events are independent, the probability of both/all events ...

*October 5, 2016*

**maths**

M = Et - 5 Er = 2Et Er + Et + M = 47 Substitute Et-5 for M and 2Et for Er in the third equation and solve for Et. Insert that value into the other equations to solve for M and Er. Check by putting all values into the third equation.

*October 5, 2016*

**Math (?)**

Lack data. Also cannot graph on these posts.

*October 3, 2016*

**Math**

Since this is not my area of expertise, I searched Google under the key words "what does skip half an increment mean in graphs" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=what+does+skip+half+an+increment+mean+in+graphs&ie=UTF-...

*October 3, 2016*

**math**

A had 3 wins, one loss and one draw in relation to B. That means 5 games.

*October 3, 2016*

**algebra**

5/20* 2/19* 1/18

*October 3, 2016*

**math**

$3.15/3.875 = $.81 Compare to $1.60 Not "more than 2 times the price."

*October 3, 2016*

**Biology**

Think of it this way. Over which source would the experimenter have the least control?

*October 3, 2016*

**math**

First of all, online "^" is used to indicate an exponent, e.g., x^2 = x squared, and “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Also when multiplying/dividing, exponents are added/subtracted respectively. 5....

*October 3, 2016*

**Math115**

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 you later post.

*October 2, 2016*

**algebra**

good!

*October 2, 2016*

**algebra**

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

*October 2, 2016*

**math**

Close. h = (S-2πr^2)/2πr = S/2πr - r Online "^" is used to indicate an exponent, e.g., x^2 = x squared.

*October 2, 2016*

**math (stats)**

Examples P(not green) = 1 - .15 = ? Either-or probabilities are found by adding the individual probabilities. P(blue or orange) = P(blue) + P(orange) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of ...

*October 2, 2016*

**Science**

14 days = 14 * 24 * 60 * 60 seconds 2.5 m = 2.5 * 1,000,000 micrometers micrometers/seconds = ?

*October 2, 2016*

**Algebra**

L = 2W L*W = 259 Substitute 2W for L in the second equation and solve for W.

*October 2, 2016*

**Math (?)**

Lack data. Cannot copy and paste here.

*October 2, 2016*

**Math work**

Either-or probabilities are found by adding the individual probabilities. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. P(RB) = 7/38 * (7-1)/(38-1) = ? P(L) = 11/38 * 10/37...

*October 2, 2016*

**Math (?)**

Typos? Smallest digit means in one's place? 245 one digit MORE than the digit in the tens place?

*October 2, 2016*

**Genetics**

http://blogs.sciencemag.org/pipeline/archives/2016/04/18/the-myth-of-ethidium-bromide For further info, Google other sources.

*October 2, 2016*

**Finite math and probability**

P(Blue) = 7/16 P(Even) = 7/16 Either-or probabilities are found by adding the individual probabilities.

*October 2, 2016*

**Principle of color**

complement of red = green https://www.google.com/search?client=safari&rls=en&q=complement+of+red+color&ie=UTF-8&oe=UTF-8&gws_rd=ssl

*October 2, 2016*

**principles of color**

get it less saturated?

*October 2, 2016*

**algebra**

You added a negative sign in front of 800 when checking.

*October 1, 2016*

**math**

If it is not a continuous variable, 25. If continuous, 24.5.

*October 1, 2016*

**maths**

(2x)^2 --> 4Y 4Y is 300% greater than Y.

*October 1, 2016*

**Probability**

4/52 * 3/51 * 2/50 * 4/49 * 3/48 = ?

*October 1, 2016*

**stats**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (.52)^4 * (1-.52) = ?

*October 1, 2016*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (1-.569)^3 = ?

*September 30, 2016*

**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. 3*10^-8 seconds = 1 m 3 seconds = ?m I'll let you find the solution.

*September 30, 2016*

**Stat 154**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 5/100 * 4/99 * 95/98 * 94/97 * 93/96 * 92/95 * 91/94 * 90/93 = ? Or you could explore combinations and permutations. https://www...

*September 30, 2016*

**Math**

To solve for t (I'm assuming that is what you want to do.): Multiply both sides by 4 to get rid of the divisor. 2t + 14 = 3t + 36 Combine terms.

*September 30, 2016*

**Math (?)**

$8, unless you want to define your "four step plan."

*September 29, 2016*

**Psychology**

They differ in emphasis, especially motor functions, but interact via the corpus callosum. https://en.wikipedia.org/wiki/Lateralization_of_brain_function

*September 29, 2016*

**maths**

Welcome

*September 29, 2016*

**maths**

Only one possible outcome. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. P (Both lemon) = 5/9 * (5-1)/(9-1) = ? P (both orange) = 4/9 * 3/8 = ? Either-or probabilities are ...

*September 29, 2016*

**Grammar**

She lit scented candles, so the air will smell sweetly.

*September 29, 2016*

**math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. 2x^2 - 6x - cx + a + 6

*September 29, 2016*

**Statistics**

True

*September 29, 2016*

**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 Z = (score-mean)/SEm SEm...

*September 29, 2016*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability in the smaller area for the Z score of 1.32.

*September 28, 2016*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability for the Z score of 1.32.

*September 28, 2016*

**Statistics**

Mutually exclusive — each thing makes the other thing impossible : not able to be true at the same time or to exist together. Independent — one variable does not effect another. If they are neither, they can occur together and one variable effects another.

*September 28, 2016*

**foundations of algebra**

x = first piece x+15 = second piece 2x+5 = third piece x + (x+15) + (2x+5) = 100 Solve for x, then others.

*September 28, 2016*

**Math**

To me, if it moves "10 feet in 2 minutes," then it would move 5 feet in one minute. 5 ft ≠ .2 ft

*September 28, 2016*

**statistics**

Rolls < 6. 1, 1 1, 2 1, 3 1, 4 2, 1 2, 2 2, 3 3, 1 3, 2 9/36 = ?

*September 28, 2016*

**math**

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 between the two Z scores. Multiply by 250.

*September 27, 2016*

**Pre-Algebra.**

Round to .001?

*September 27, 2016*

**biology**

Consult blood flow diagram on Google.

*September 27, 2016*

**Science**

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

*September 27, 2016*

**Biology**

What are your choices? will, basic?

*September 27, 2016*

**Math**

What are you choices? You cannot copy and paste here.

*September 27, 2016*

**statistic**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

*September 27, 2016*

**elementary algebra**

44/(7+4) = 44/11 = 4 7 * 4 = 28 4 * 4 = 16 16 + 28 = 44

*September 27, 2016*

**Math (?)**

What is your question?

*September 27, 2016*

**Math**

at 1 cm each cut, 21 + 27 = 48

*September 27, 2016*

**Math (?)**

It doesn't make sense. Summing two positive numbers will not get a negative.

*September 27, 2016*

**Math**

5/6 * 3/10 = ?

*September 27, 2016*

**Maths**

It would help if you proofread your questions before you posted them. x = 75 degrees

*September 27, 2016*

**math**

Cannot construct an equi quadrilateral here.

*September 27, 2016*

**Sociology**

I searched Google under the key words "basic logic of probability sampling" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=basic+logic+of+probability+sampling&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...

*September 27, 2016*

**Statistic**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (a) .58 * .58 (b) .42 * .42 (c) "at least one" = one or two P(2) = (a) P(1) = .58 * .42 Either-or probabilities are ...

*September 26, 2016*

**math (partial)**

(A) 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 Z = (score-mean)/SEm ...

*September 26, 2016*

**math**

99% = mean ± Z (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 (.005) in the smaller area and its Z score. Insert data into equations above.

*September 26, 2016*

**Math**

Cannot draw tables on these posts. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. p(0) = 1/10 * 1/10 P(1) = 9/10 * 1/10 P(2) = 9/10 * 9/10

*September 26, 2016*

**English( PLS HELP!!)**

Welcome

*September 26, 2016*

**English( PLS HELP!!)**

jam

*September 26, 2016*

**Science**

water

*September 26, 2016*

**stats**

integers

*September 26, 2016*

**psychology**

We do not know the behaviors "you exhibit every day" outside of eating, drinking, breathing, sleeping, urinating and defecating.

*September 25, 2016*

**Biology**

Still don't know your question.

*September 25, 2016*

**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 for each Z score. For last question, use the table to find .05 and insert its Z score in the equation above.

*September 25, 2016*

**math**

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. Conclusion would be related to level of significance you are using.

*September 25, 2016*

**Algebra**

2x + (x-3) = 42 Solve for x to get twins' age and subtract 3 for 3rd child.

*September 25, 2016*

**algebra**

Volume = w * h * L 18 = (5-2) * 1 * L Solve for L.

*September 25, 2016*

**math**

3x = x + 48 Solve for x.

*September 25, 2016*

**Math**

Cannot draw diagrams on these posts.

*September 25, 2016*

**Physics needs help**

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

*September 25, 2016*

**math**

A circle has no volume, however, its area = πr^2.

*September 25, 2016*

**math 6th grade ?**

It would help if you proofread your questions before you posted them. "13 4 feet wide" = 134, 13.4, 13feet 4 inches? Also lacking data. How much lumber did he buy? How big are DVD cases and paperback books?

*September 24, 2016*

**6th grade math**

Lacking data. How big are the shelves?

*September 24, 2016*

**Chemistry needs help**

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

*September 24, 2016*

**Maths**

We do not have access to the figure. You cannot copy and past here.

*September 24, 2016*

**Biology**

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

*September 24, 2016*

**SCIENCE**

100kW/m^2

*September 24, 2016*

**Math**

https://www.google.com/search?client=safari&rls=en&q=graph+information+from+a+ratio+table&ie=UTF-8&oe=UTF-8&gws_rd=ssl

*September 23, 2016*

**Grammar**

What about commas? Thank you, John, Peter, Susan and Veronica, for being a part of the crew.

*September 23, 2016*

**algebra**

.5 + .5d = 7.5 Solve for d.

*September 23, 2016*

**Math**

The two end digits cannot be even because subtracting one from the other would be an even difference. Explore the odd choices. 123, 345, 567, 789

*September 23, 2016*