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Today,
03:04 PM
Dr.Peterson
replied to a thread
Discrete Math Binomial Theorem
in
Pre-Algebra
Start by writing out the binomial theorem itself. Then look for a part that you can turn into a 2, and a part that you can turn into -1 (probably by...
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1 replies | 23 view(s)
Today,
02:22 PM
sita
started a thread
Discrete Math Binomial Theorem
in
Pre-Algebra
Please could someone help me the way to approach this?
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1 replies | 23 view(s)
Today,
11:00 AM
Dr.Peterson
replied to a thread
Pre-U Vector Question
in
Geometry and Trig
Is the picture meant to be related?? One thing to do is to find the distance from A to your new plane, and set that distance equal to 1. Then you...
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1 replies | 34 view(s)
Today,
10:54 AM
mgranatosky
replied to a thread
Help understanding the role of ϕ in equations for C_limb, COL_walk
in
Intermediate/Advanced Algebra
I attempted to work this out in excel. Is this correct? A 10
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6 replies | 121 view(s)
Today,
10:53 AM
Dr.Peterson
replied to a thread
Prove points A,P and E are collinear.
in
Intermediate/Advanced Algebra
I hope you meant to say |a| = √(ax2 + ay2), which is quite different.
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11 replies | 221 view(s)
Today,
10:12 AM
j-astron
replied to a thread
Compute number of distinct divisors of 98000 = 2^4 * 5^3 * 7^2.
in
Pre-Algebra
Hope this is not giving too much away When I was trying to figure out what stapel was saying, I realized it was useful to write the product of...
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3 replies | 310 view(s)
Today,
09:50 AM
richiesmasher
replied to a thread
Prove points A,P and E are collinear.
in
Intermediate/Advanced Algebra
Got it, AE and DE are the same length, so therefore it is an isosceles triangle, I used this formula to prove it |a| = √ax2 +√ ay2
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11 replies | 221 view(s)
Today,
04:12 AM
Masaru
replied to a thread
The probability of all the same type of books not being together on a shelf
in
Probability / Statistics
No, I did not look at the wrong answer. I double and triple checked it and the text says clearly that the answer is 9/30. It is written in...
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2 replies | 95 view(s)
Yesterday,
11:50 PM
Dr.Peterson
replied to a thread
Prove points A,P and E are collinear.
in
Intermediate/Advanced Algebra
You're almost there! What is the length of each of those vectors??
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11 replies | 221 view(s)
Yesterday,
11:15 PM
richiesmasher
replied to a thread
Prove points A,P and E are collinear.
in
Intermediate/Advanced Algebra
Hmm this one i proving to be difficult I say... Let's see DA= (3,3) and DE = (3,0) and since AE is -DA +DE I would get AE = (0,-3)... and I'm not...
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11 replies | 221 view(s)
Yesterday,
10:40 PM
Dr.Peterson
replied to a thread
Prove points A,P and E are collinear.
in
Intermediate/Advanced Algebra
I would just go back to what you were given, and find the components of DA and DE, and use that to find AE (as actual numerical values). You could...
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11 replies | 221 view(s)
Yesterday,
10:29 PM
bennyJ
replied to a thread
Volumetric Displacement Question (3,000 barrels of toxic chemicals)
in
Geometry and Trig
This problem seems to want you to use Archimedes' Principle. Since the barrels will be floating, I reasoned that the weight of the displaced water...
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4 replies | 328 view(s)
Yesterday,
09:57 PM
richiesmasher
replied to a thread
Prove points A,P and E are collinear.
in
Intermediate/Advanced Algebra
Hi Dr. Peterson sir, this is from the same question but they say using a vector method, if x=(2,0) and y= (1,1) prove triangle AED is isosceles. I...
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11 replies | 221 view(s)
Yesterday,
09:40 PM
Yoshimineb
started a thread
Pre-U Vector Question
in
Geometry and Trig
Hello, I'm struggling with the question below. The plane with equation 2x + 2y − z = 5 is denoted by m. Relative to the origin O,...
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1 replies | 34 view(s)
Yesterday,
08:13 PM
j-astron
replied to a thread
Help understanding the role of ϕ in equations for C_limb, COL_walk
in
Intermediate/Advanced Algebra
Just out of curiosity, do you have the ability to graph this function out and see how it varies with phi? It seems like it's just of the form ...
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6 replies | 121 view(s)
Yesterday,
07:40 PM
mmm4444bot
replied to a thread
Help with getting better at calculus (for exam in 4 months)
in
Calculus
If your algebra and precalculus skills are good, then I'd suggest working with one of the free introductory calculus courses online. There are also...
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2 replies | 73 view(s)
Yesterday,
07:30 PM
j-astron
replied to a thread
Help with getting better at calculus (for exam in 4 months)
in
Calculus
Hi GeorgieB, Just out of curiosity, what "department" are you trying to get into? I ask because if this calculus is at the high school level, it...
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2 replies | 73 view(s)
Yesterday,
07:13 PM
j-astron
replied to a thread
Pretty tricky probability "dice" question
in
Probability / Statistics
I was! Did you write out P(win on 2nd throw), P(win on third throw), and P(win on fourth throw)? It should be enough to establish a pattern ;)
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16 replies | 1053 view(s)
Yesterday,
06:03 PM
Dr.Peterson
replied to a thread
Help please
in
Calculus
No, the right side is not negative! Maybe it's your lack of parentheses. You clearly intended -3/(2pi), having divided 3/2 by -pi, but you may...
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1 replies | 49 view(s)
Yesterday,
05:44 PM
mgranatosky
replied to a thread
Help understanding the role of ϕ in equations for C_limb, COL_walk
in
Intermediate/Advanced Algebra
Okay, let me see if my math works out. If you assume that all the other variables are 1, then Climb is negligible because will ∣1−T2T−20∣∣result in...
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6 replies | 121 view(s)
Yesterday,
05:41 PM
Seed5813
started a thread
Help please
in
Calculus
Ok so from y=e^(-x^2) to x=b is being revolved around the y axis and the resulting solid is 3/2 cubic units. I set up the shell method: 2pi...
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1 replies | 49 view(s)
Yesterday,
05:16 PM
stapel
replied to a thread
geometry of derivative: (a) Draw region enclosed by parab. y^2=4ax & latus rectum x=a
in
Calculus
Your formatting is ambiguous. I've broken the stream-of-consciousness math into separate lines, but I'm still confused. The derivative, in the...
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6 replies | 298 view(s)
Yesterday,
05:08 PM
stapel
replied to a thread
Help understanding the role of ϕ in equations for C_limb, COL_walk
in
Intermediate/Advanced Algebra
It's just plugging a number in, and simplifying. Copy the "C_limb" expression to the end of the COL_walk expression. Then pick a value for phi....
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6 replies | 121 view(s)
Yesterday,
04:49 PM
mgranatosky
replied to a thread
Help understanding the role of ϕ in equations for C_limb, COL_walk
in
Intermediate/Advanced Algebra
Thank you for your response. Unfortunately, my math skills are not where I would like them to be. Would you mind working out an example assuming...
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6 replies | 121 view(s)
Yesterday,
04:21 PM
stapel
replied to a thread
Racist Pepe the Frog Memes
in
Math Odds & Ends
Aw, shucks; thanks! :lol:
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3 replies | 205 view(s)
Yesterday,
04:16 PM
stapel
replied to a thread
Help understanding the role of ϕ in equations for C_limb, COL_walk
in
Intermediate/Advanced Algebra
What did you find, when you plugged in larger values? ;)
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6 replies | 121 view(s)
Yesterday,
04:08 PM
mgranatosky
started a thread
Help understanding the role of ϕ in equations for C_limb, COL_walk
in
Intermediate/Advanced Algebra
Hello, Thank you in advance for your help. I’m hoping to get some help understanding the role of ϕ in the equation below. Essentially, does...
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6 replies | 121 view(s)
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