01/02/16

Use the first derivative test to find any relative extrema
Hello could someone please help me find the extrema on this function:   f(x)= (3/2)sin((πx/2)-1) on the interval [0,4]   I did the first derivative and I think it's f'(x)=... more
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12/31/15

Testing for significant difference? help please!
My topic was: Are there significant multitasking differences between males and females? I had a total of 90 subjects (45 males and 45 females) play an online game. The game consisted of levels, and... more
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12/22/15

Immediate help
Hi everyone. I have a complex statemant with Gamma functions. I wil be so happy if someone can help me. I have uploaded its formula image in this... more
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12/21/15

Suppose 14 men and 24 women apply for jobs. If four people are selected randomly to fill job positions, what is the probability at least three women are select
Suppose 14 men and 24 women apply for jobs. If four people are selected randomly to fill job positions, what is the probability at least three women are selected for the job?
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12/16/15

HELP NEEDED ANSWERING THIS QUESTION!!!!!
I AM LOST BECAUSE I'M NOT A HUGE FAN OF STATISTICS   An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 140 lb and 201 lb. The... more
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12/12/15

Solution of heat equation
I have been asked to prove the below function satisfies heat equation.u(r,t)=2Uπ∑n=1∞ {(−1)^n+1}(1/r)sin(nπr)e^−n^2π^2tI have tried to equate ∂u/∂t = ∂^2u/∂x^2 however both let hand side and right... more
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12/10/15

I would appreciate it for your help!
In an isolated system, Bicycle 1 and Bicycle 2, each with a mass of 15 kg, collide. Bicycle 1 was moving to the right at 1 m/s, while Bicycle 2 was moving to the left at 3 m/s. What is the... more
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12/09/15

bay's theorem based quesion
in a university office two clerks are working to checking application form.on an average the first clerk 60percent while clerk second check remaining .the error rates are by and first and second... more
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12/06/15

what is a good thesis statement for supporting minimum wage increase
I'm having trouble with figuring out a good thesis statement in support of raising minimum wage. What are some good points or strong argument reasons i could talk about?
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12/03/15

true or false: ANOVA is used in hypotheses testing to evaluate mean differences between 2 or more treatments (or populations)
My question is just true or false, it is not an actual problem. Just a word problem, that is it.
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11/28/15

Expected Value
I get to answer 1 question a day that I have a 70% chance of getting that question right. I'm offered prizes for getting a streak of questions right in a row. However, anytime I accept a prize, the... more
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11/23/15

difficult statistics question................................. see below
4. (Hypothetical) You are conducting research on the prevalence of severe binge drinking among college students. You define severe binge drinking as consuming 10 or more alcoholic beverages at a... more
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11/16/15

use a combination formula to answer the question in the description?
suppose there are 12 seniors and 10 juniors in a schools honor society. ten honor students must be chosen to attend a conference. the conference organizers require that a school send more seniros... more
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11/10/15

factor the following trinomials m² + 7m + 12=
I need help  
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11/08/15

word problem for university level grade 12 physics
On a two lane highway where the posted speed limit is 80 km/h, a car of mass "mc" and an SUV of mass "ms" have a head-on collision. The collision analysts observe that both vehicles come to a stop... more
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11/08/15

A student takes a 32-question multiple-choice exam, but didn't study and randomly guesses each answer.
Each question has three possible choices for the answer. Find the probability that the student guesses more than 60% of the questions correctly. What would the probability be that the student... more
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11/06/15

P(n,r)=r!C(n,r) troe or false
P(n,r)=r!C(n,r) is this true or false
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11/02/15

How do you factor 2k^2+4k+8?
I am stuck on this one. And we haven't learned quadratic formula yet.
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11/02/15

And arrow is shot straight up into the air at a speed of 98M/S what is the maximum height which by the arrow? You may neglect air friction
I dont understand how to set it up
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10/26/15

The radius of circle A is 1/2r, and the radius of circle B is 3/4r. What is the ratio of the area of circle A to the area of Circle B?
After doing all the calculations I get a ratio of 1/4 to 9/16. Now I just need to find the ratio of these two fractions.
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10/24/15

In May, the average of the agents' commision at Country Reaty was $2680.35. Find the agents' total comissions for May
I just need the answer cause Im really confused what the question is asking, so i need help on this really hard question
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10/23/15

Selecting a committee
A city council consist of 8 Democrats and 5 Republicans. If a committee of 6 people is selected, find the probability of selecting 4 Democrats and 2 Republicans.
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10/23/15

A practical approach to understanding physics:
Note: This question is NOT a homework problem--it is to help me to understand basic physics though a practical approach.If a 170g cue ball is at rest on a flat, smooth surface, how would you... more
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10/21/15

Probability function
For what value of c is the following a probability function?   X       1     2     3     4     5 P(x)  4c  6c   2c    3c    5c
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10/20/15

find the interest on a loan of $2,300 at 7? for 9 years
I don't get the question I need help please help its homeowork
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