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1. Solve for r r/5+6/5=r/7=8/7?

r/5 + 6/5 = r/7 + 8/7 7r + 42 = 5r + 40 2r = - 2 r = - 1 Answer: r = - 1 Checking: - 1/5 + 6/5 = - 1/7 + 8/7 5/5 = 7/7 1 = 1

2 Answers · Science & Mathematics · 17/11/2010

2. Find R(11)?

R(x) = -2x³ - 7x + 14 R(11) = -2(11)³ - 7(11) + 14 R(11) = -2(1331) - 77 + 14 R(11) = -2662 - 77 + 14 R(11) = -2725

3 Answers · Science & Mathematics · 03/07/2008

3. Algebra Help - Find R !!!!?

I = e/R + r IR = e + rR {multiply both sides by R} IR - rR = e {subtract rR from both sides} (I - r)R = e {factor left side} R = e/(I - r) {divide both sidea by (I - r)

4 Answers · Science & Mathematics · 13/10/2007

4. critical values of f(r)= |r^2-3r+2|?

f(r) = |(r - 2)(r - 1)|. As a piecewise defined function f(r) = (r - 2)(r - 1) if r ≤ 1 or r ≥ 2 f(r) = -(r - 2... that f ' isn't defined at r = 1. f has three critical values on the...

1 Answers · Science & Mathematics · 27/06/2013

5. Find the limit as r approaches 0?

lim ((a^r + b^r)/2)^(1/r) (as r --> 0) LN lim = lim LN lim LN ((a^r + b^r)/2)^(1/r) = = lim (1/r)LN ((a^r + b^r)/2) (as r --> 0) is...

3 Answers · Science & Mathematics · 15/10/2012

6. Solve for r.................?

Complete the square r^2 + 3r = 2 (r + 3/2)^2 - 9/4 = 2 (r + 3/2)^2 = 2 + 9/4 (r + 3/2)^2 = 17/4 r + 3/2 = +/- Sqrt 17/4 r = - 3/2 +/- Sqrt 17/4 If you need to go further r = - 3/2 + 2.0615 = 0.5615 r = - 3/2 - 2.0615 = - 3.5615

1 Answers · Science & Mathematics · 16/08/2010

7. 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

8. 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 · 06/04/2012

9. 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

10. 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