# geometry

Remove the radical from the denominator below. Do not simplify the answer.

-2 sqrt15 / (6- sqrt13)

1. 👍
2. 👎
3. 👁
1. -2 √15 / (6- √13)
= -2 √15 / (6- √13) * (6+√13)/(6+√13)
= (-12√15 - 2√195)/(36-13)
= -(12√15 + 2√195)/23

1. 👍
2. 👎

## Similar Questions

1. ### Algebra 1B Radical expressions & data analysis

1. Simplify 2/√5 A. 2/√5 B. √10 C. √10/5 D. 2√10/5 *** My answer 2. Simplify -11√112 A. -44√7 B. -176 √7 C. -27 √7 D. 4√7 *** My answer 3. Simplify 17√17 -9 √17 A. 8 *** My answer B. 8√17 C. 26√17 D.

2. ### Mathmatics

4.8.1 - Test: Radical Expressions and Equations Unit Test Part 1 Honors Algebra 1 B (CL); 7.20 / 4. Radical Expressions and Data Analysis / 4.8. Radical Expressions and Data Analysis Unit Test Connexus studies! Just went through

3. ### algebra

am I right? 1. Simplify radical expression sqrt 50 5 sqrt ^2*** 2 sqrt ^5 5 sqrt ^10 5 2. Simplify the radical expression sqrt 56x^2 28x 2x sqrt 14*** 2x sqrt 7 sqrt 14x2 3. Simplify the radical expression. sqrt 490y^5w^6 2 sqrt

4. ### Algebra - Check My Work

For Question 1-8 Simplify the Radical Expression *** - My Answer 1.√45 3√5*** 2.√180x^2 6x√5*** 3.√150x^3 k^4 5xk^2√6x*** 4.√21y * 5√49y 35y√21*** 5.(The square root sign applies for the whole equation; both

1. ### algebra

1. simplify the radical expression. √45 5√3 3√5 3√15** 15 2. Simplify the radical expression √180x^2 90x** 6x√5 5x√6 6√5x^2 3. simplify he radical expression √250h^4 k^5 hk√125 5√10h^4 k^5 5h^2 k^2√10k**

2. ### Alg 1

Simplifying Radicals A gardener is mowing a 20-yd-by-40 yd rectangular pasture using a diagonal pattern. He mows from one corner of the pasture to the cxorner diagonally opposite. What is the length of this pass with the mower?

3. ### Algebra

Simplify the radical expression by rationalizing the denominator. 5 ------- sqrt 30 A. 30 sqrt5 B. sqrt30 C. sqrt180 /30 D. sqrt30 /6 I did it on my own and did not come out with any of these answers, please help me.

4. ### Algebra

1- Simplify the radical expression: √250h^4k^5 a) hk√125 b) 5√10h^4k^5 c) 5h^2k^2√10k d) 25hk√10k ** 2- Simplify the radical expression: √21y * 5√49y a) 5y√1,029 b) 5√1,029y^2 c) 35y√21 d) 35√21y^2 ** 3-

1. ### Math

If cos A = 1/3 with 0 < A< pi/2, and sinB=1/4, with pi/2

2. ### Algebra

1.Simplify the radical expression. √5+6√√5 A.5√5 B.7√10 C.7√5 D.5√10 2.Simplify the radical expression. 2√6+3√96 A.14√6 B.14√96 C.5√96 D.50√6 3.Simplify the radical expression. (8+√11)(8-√11) A.53

3. ### algebra

solve the equation or formula for the indicated variable R=ts^2+3 a)s=under radical R-3/t (not under radical b)s=everything under radical R-3/t c)s=R (under radical)-3/t d)s=everything under radical R/t-3 Thanks again I feel

4. ### History

which answer best describes andrew johnson's relationship with the radical republicans? A:he founded the radical Republican movement B: he worked with the radical Republicans to pass important legislation C: you frequently voted