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by buddy
Mon Jan 25, 2016 8:21 pm
Forum: Intermediate Algebra
Topic: inverse proportion
Replies: 1
Views: 65

Re: inverse proportion

Please help! I am having a trouble understanding what steps to take to get the answer. They show the steps here . Suppose that y is inversely proportional to x and that y-7/8 when x=16. Is the "y-7/8" supposed to be "y = 7/8", "y = -7/8", or something else? I understan...
by buddy
Thu Jan 21, 2016 1:40 pm
Forum: Intermediate Algebra
Topic: Horizontal Asymptotes
Replies: 1
Views: 129

Re: Horizontal Asymptotes

I read the explanation on horizontal asymptotic but was wondering if there was a better way of finding out the asymptotic without observing a graph when the power of the numerator is smaller than the denominator. You mean here ? They just used the graph to explain the rule: If the power is smaller ...
by buddy
Sat Dec 19, 2015 1:34 am
Forum: Trigonometry
Topic: Solve equation for a roof loading: =[2 x (3/2)Cos(45) x 1] x 2.25
Replies: 3
Views: 363

Re: Solve equation for a roof loading: =[2 x (3/2)Cos(45) x 1] x 2.25

So if RL is "Roof Load", W is "width of the bay window's opening in the wall", D is "depth of the bay window, or how far the window sticks out past the rest of the wall", and P is "the pitch angle of the roof, covering the two-floor building, where the bay window i...
by buddy
Tue Nov 03, 2015 12:10 am
Forum: Forum Rules & Guides
Topic: Log In
Replies: 1
Views: 574

Re: Log In

If you figure out the answer, will you please let me know? it drives me nuts!
by buddy
Wed Oct 14, 2015 7:54 pm
Forum: Matrix (Linear) Algebra
Topic: Linear Algebra: Transposes
Replies: 1
Views: 290

Re: Linear Algebra: Transposes

Section 2.7. Problem 40: Suppose Q T equals Q -1 (transpose equals inverse, so Q T Q = I ). . . . (a) Show that the columns q 1 , ..., q n are unit vectors: || q i || 2 = 1. . . . (b) Show that every two distinct columns of Q are perpendicular: q i T q j = 0 for i != j . . ....
by buddy
Mon Oct 12, 2015 4:43 pm
Forum: Pre-Algebra
Topic: indicated operation and
Replies: 1
Views: 665

Re: indicated operation and

bettybad5 wrote:Perform the indicated operation and, if possible, simplify

5/8 + 2/7

You can learn how to add fractions here and here. Before you try the problem, do at least 2 or 3 lessons from the links. Then do the common denominator (or LCM) of 8 and 7 (its 56) to get 35/56 and 16/56. Then add, etc.
by buddy
Fri Oct 09, 2015 1:19 am
Forum: Geometry
Topic: Calculating angles for a physical regular icosahedron
Replies: 1
Views: 613

Re: Calculating angles for a physical regular icosahedron

Are you looking for something like what they show in this video?
by buddy
Wed Sep 30, 2015 12:45 pm
Forum: Uncategorized
Topic: Question
Replies: 4
Views: 346

Re: Question

Alfred wrote:It's "puzzle style" and I know the answer...

What is "puzzle style"?
by buddy
Tue Sep 15, 2015 2:28 pm
Forum: Calculus
Topic: Need help with: If dy/d(theta)=5, dr/d(theta)=18, and y=40, what is theta?
Replies: 3
Views: 255

Re: Need help with: If dy/d(theta)=5, dr/d(theta)=18, and y=40, what is theta?

TDavenport wrote:this is the entire problem. It's entirely possible considering the fact that someone else in my class has already solved it.

Cool. Show us how he did it. Thnx.
by buddy
Tue Sep 15, 2015 11:04 am
Forum: Calculus
Topic: Need help with: If dy/d(theta)=5, dr/d(theta)=18, and y=40, what is theta?
Replies: 3
Views: 255

Re: Need help with: If dy/d(theta)=5, dr/d(theta)=18, and y=40, what is theta?

TDavenport wrote:I need help please with a quick problem:

If dy/d(theta)=5, dr/d(theta)=18, and y=40, what is theta?

Until you give us a relationship between y and r, we can't answer this (same as they said here, here, and here). You really do need to give us the rest of the problem.

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