Saturday

July 26, 2014

July 26, 2014

Total # Posts: 17,975

**MAth - Percents**

(100%-10%)(40%) = ?

**Math - Percents**

.15 * 40 = 6 6/27 = ?

**Math - Percents**

2n - .125n = 28 Solve for n.

**Math**

-11 -(-14) = -11 + 14 = ?

**science**

Since this is not my area of expertise, I searched Google under the key words "reproduction of mosses, ferns, gymnosperms, and angiosperms" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=reproduction+of+mosses,+ferns,+gymnosperms,...

**science**

Asexual reproduction has less genetic variety. Any catastrophic environmental change would effect all organisms. Since sexual reproduction gives a variety of genetic combinations, some organisms would probably survive.

**statistics (?)**

By "x+/-2s", do you mean "x±2s"? What does x stand for?

**math (?)**

What is your question?

**science**

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 ...

**math (?)**

From your data, I don't understand. How can a six-digit number have a value of 90,000? Is there some typo?

**math**

Interquartile range is the middle 50%.

**science**

You can consciously flex a voluntary muscle.

**science**

I agree with 2, but not necessarily repeat the same experiment, but rather a revised one.

**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.

**Math**

10 yards are needed for a first down. With the losses, they needed to make 18 yards. They made 15. The decision to punt or go for it would depend on where they are in the field, the time remaining and the current score. They might even want to try a field goal. http://drdavesp...

**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.

**math (?)**

More data needed.

**Math**

5/8 indicates 5 divided by 8 = .625. Therefore 4 5/8 = 4.625.

**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.

**Math**

80/5x = 16/x

**Math**

.80 < [(131+120+140)/150 + x/200]/4 Solve for x.

**Math - Ratios**

If each exam = 3 quizzes, then 2 exams = 6 quizzes. That should help you.

**Math - Averages**

90 - 6(2.25)(44) = amount needed Amount needed/(4*2.25) = average boxes that need to be sold.

**Math - Averages**

90 - 6(2.25)(44) = amount needed Amount needed/(4*2.25) = average boxes that need to be sold.

**Math -?**

How does a fit in?

**5th grade math help**

Where did you get "10" from? 3w + 7g = ?

**Math - Number Properties**

6 + 5 = ?

**science (?)**

It would help if you proofread your questions before you posted them. Inadequate data.

**Math**

17. a -17 = 11- 17 ≠ -28 18. Right 19. Right 20. b - a = 8 - 11 ≠ 19 22. Right 23. Right 24. Right 25. c - a -b = -6 -11 -8 ≠ -3 28. c - a + b = -6 -11 + 8 ≠ -13

**Math**

The greater your depth, the longer it will take to ascend.

**body systems terminology**

Sensory nerves are afferent nerves. Plasma with a clotting factor removed HIV Colds are causes by viruses.

**Math**

(24*48)/(4*6) = ?

**math**

"Of what she had left" leads me to think some data is missing. If not, 16 - 16/4 = 16 - 4 = 12

**math**

Yes, but the specific relation depends on the specific activity related to burning the calories

**math**

-8º Celsius

**math**

We do not have access to your text or tables.

**Math**

https://www.google.com/search?client=safari&rls=en&q=prime+numbers+list&ie=UTF-8&oe=UTF-8

**algebra**

Let x = number of dimes, then x/2 for nickels and x-10 for quarters. 5x/2 + 10x + 25(x-10) = 875 Solve for x, then x/2 and x-10.

**Algebra**

Let first number = x, then 4x = second and x-13 = third. x + 4x + x-13 = 353

**math**

Assuming three meals of stew a day, number of packages = (3*3*8)/2 = ? For cost, multiply the above answer by $4.95.

**math**

You don't have any pieces of fruit to look for yourself?

**math**

Why would you want a longer way to work out the problem? What you did is fine.

**Algebra**

It must be less than 8 and greater than 6.

**STAT**

Measures of central tendency are all know generally as "averages." I. Mean is calculated as mean = ∑X/N. The mean is the fulcrum (balance point) for the distribution; therefore it is most influenced by deviant scores. II. Median is the point of the distribution...

**MATH**

Z score is the raw score in terms of standard deviations from the mean. The Z score cuts off the same proportion for any normal distribution. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" t...

**math (?)**

More data needed.

**Math - Fractions**

Let x = total appointments x - 1/9x - 3/16(x-1/9x) = 234 Calculate for x, then subtract 234 from x.

**comm**

http://drdavespsychologypage.intuitwebsites.com/Listening_Helpfully.pdf Take your pick.

**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 related to the Z score.

**science**

Does liking a cereal mean that it is better for you?

**MATH**

7 * 4/5 * 7 = ?

**Psychology**

The question asks for your thoughts rather than ours.

**Physics needs help**

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

**statistics**

With "or", it is unclear whether you want the probability between the scores, above them or below them. Assuming that you want the probability between the Z scores, find table in the back of your statistics text labeled something like "areas under normal distrib...

**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 - Algebra**

b + 3/4b + 5/8b + 9/16b + 7/16b = 216 b + 3/4b + 5/8b + b = 216 Solve for b, then 9/16b = ?

**stat**

Z = (score-mean)/SD Calculate the Z score from your data above. Do you think a null hypothesis can be accepted or rejected with n = 1?

**Psychology**

1. Synapse is a gap, so you have to define what you mean by "meet." 2. Right. 3. Agree. 4. Is suckling acquired or inborn? 5. I'm not sure what you mean by reminder sessions. However, events need to be repeated often to be remembered. Also, in later life, there i...

**COMM100**

http://drdavespsychologypage.intuitwebsites.com/Communication__Gender_Bias.pdf

**STATISTICS**

Correlation does not necessarily indicate causation.

**STATISTICS (?)**

What is your question?

**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 between the two Z scores.

**statistics (?)**

Data missing. What is your question?

**math (?)**

What is the tax rate and allowance for dependents?

**math**

$7.45*40 + 4*2*$7.45 + 12*1.5* $7.45 = ?

**Math**

7 + 4 = 11 66/11 = 6 6*4 = ?

**Math**

35,200,000 - 250,000 = ? 35,200,000 - 252,800 = ?

**biology**

For Juice, Ho: no difference in stacks for slime, Ho: no difference between effects of juice vs. water

**math (incomplete)**

It would help if you proofread your questions before you posted them. Need more data. Cost of admission? Number in group?

**AP Psychology**

http://drdavespsychologypage.intuitwebsites.com/Brain__General_Anatomy.pdf

**math**

Typically (99% of the time) Z ranges from -3 to +3. Essentially ALL of the area would be to the right (greater than) Z = -103. Do you have a typo?

**LMI (?)**

You need to define "them."

**Math**

I assume you want a little space between the top of the box and the model. If not: 1.5/8 = ?

**science**

14.1 * 15 = 211.5 sq m It looks like you have 4 significant figures.

**science**

40 mL = .040 L Does that help?

**algebra (?)**

What is your question? The numbers as printed do not make sense.

**science**

Are they both at the same temperature?

**Math**

Will they all need to be seated like a Greyhound Bus? If so, the number of seats.

**Algebra**

3P = 2C(6 +5M) 3P/2C = 6+5M (3P/2C) - 6 = 5M [(3P/2C)-6]/5 = M

**Statistics**

It can only be stated in probability terms. 68% = within one SD 95% = within 2 SD

**stats**

I'm not sure what you men by "rank-over" but here is some information about the others. http://drdavespsychologypage.intuitwebsites.com/Two___Two_____four.pdf

**Spanish**

Since iPod is a brand name, you can use it.

**English**

You're welcome.

**English**

disgusting, improper, degenerate, clinically psychotic?

**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.

**algebra 2 (?)**

Data missing. What are your choices?

**Statistics**

You are welcome.

**Statistics**

Right.

**STATISTICS**

Whichever correlation is closest to ±1 is right. That is choice D.

**Statistics**

First one is B. I would agree with the second too, if P<.05.

**math**

The one closest to a square, 20 by 20.

**Math**

Revise your thinking. 1. Single blind gives the control group a placebo — a substance that is inert, it has no physical effect. Subjects don't know if they are in experimental or control group to reduce placebo effect, a change in behavior solely due to believing that...

**math (long div.)**

Divide 6984 into 8.0000000. 6984 into 8.000 = .001 with remainder of 1016. Drop the next zero to give you 10160, divided by 6984 = 1 with remainder of 3176. Drop the next zero to give you 31760, divided by 6984 = 4 with remainder of 3824. So far the answer is .00114. Continue ...

**Grammar**

with = not algebra for = not trig However, "for" version is a little awkward. "I want to take algebra instead of trigonometry" would be better.

**5th grade math (?)**

Insufficient data.

**5th grade math**

2L + 2W = 88 88 factors into 2 * 2 * 2 * 11 Use that info to find your L and W, then multiply L*W = area.

**Science**

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

**Statistics**

1. Definitely NOT II. 2. How did they know that the students started with the "same levels of mathematical achievement"? Was Britain's National School-Leaving Exam given previously? 3. Right.

**Math**

Since lurking variable is essentially the same as confounding variable, I don't think it is B. Without more data, my best guess would be E.

**math**

1.2 meters per minute

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