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1. ### π(r+6) ² = 15(2πr) + 2 πr²?

π(r+6) ² = 15(2πr) + 2 πr² First, recognize that since everything on both... out of the equation entirely. π(r+6) ² = 15(2πr) + 2 πr² π(r+6) ² = π[15(2r) + 2r²] (r+6...

5 Answers · Education & Reference · 20/09/2010

2. ### How do you solve this for r....?

✰Answer✰ r = (-3y - 2k)/(a - 1) ✐Derivation✐ 2k + ar = r - 3y Try different... is the better way to solve for r. ar = r - 3y - 2k ar - r = -3y - 2k Factor the left side. r(a - 1) = -3y - 2k r = (-3y - 2k)/(a...

3 Answers · Science & Mathematics · 27/07/2012

3. ### Show that SL(2,R) ◅ GL(2,R)?

GL(n,R) is the group of nxn invertible matrices under matrix multiplication, and... with determinant 1. Now first we have to show that SL(2,R) is a subgroup of GL(2,R). Clearly the identity element...

1 Answers · Science & Mathematics · 07/04/2012

4. ### DVD-R or DVD+R?

I use DVD+R but it depends on your DVD burner. Most older...1) The DVD-R (pronounced "DVD dash R") and -RW media formats are officially approved...

5 Answers · Consumer Electronics · 26/12/2006

5. ### Simplify (r^2-36)/((r+6)^2 ) by removing factors of 1…?

(r^(2)-36)/((r+6)^(2)) The binomial can be factored using the difference...difference of squares formula is a^(2)-b^(2)=(a-b)(a+b). ((r-6)(r+6))/((r+6)^(2)) Reduce the expression by canceling out...

5 Answers · Science & Mathematics · 06/03/2010

6. ### The relation R on R (all real #s) given by x R y iff x - y element of Q?

Let R be a relation on R(all reals) given by x R y iff x.... To show R is an equivalence relation, then we must show that R is reflexive, symmetric, and transitive. Reflexive: We must show...

1 Answers · Science & Mathematics · 22/03/2014

7. ### My question is about DVD-R, and DVD+R!?

DVD-R created by the DVD Forum DVD+R created...operate almost exactly the same. However, on the technical level, a DVD-R is 4,707,319,808 bytes and a DVD+R is 4,700...

2 Answers · Consumer Electronics · 04/12/2008

8. ### need help r-2x = 14 for s?

r - 2s = 14 Solve for s: Subtract r off both sides: -2s = 14 - r Multiply both sides by -1 to avoid trouble later: 2s = r - 14 Divide by 2: s = (r - 14)/2

5 Answers · Science & Mathematics · 21/09/2012

9. ### Japanese R sound?

The Japanese 'r' is a mix of what is called an alveolar flap and an alveolar...a trill). The alveolar flap is the same as a Spanish 'r' in the middle of a word. Imagine the Croatian 'r', but...

3 Answers · Society & Culture · 25/06/2015

10. ### Determine the r-values?

r^2h)/(2πrh+2πr^2)<1/3 (πr^2)/(2πr+2πr^2)<1/3 (πr^2)/2πr(1+r)<1/3 r/2(1+r)<1/3 r<...

2 Answers · Science & Mathematics · 24/08/2012