2+sqrt 5/ 2- sqrt 5
Mathematics, 16.04.2020 09:12 perezsamantha3oqr0za
How can you write the expression with a rationalized denominator?
2+sqrt 5/ 2- sqrt 5
a. -1
b. 1
c. 9+4 sqrt 5
d. -9-4 sqrt 5
I think that the square roots would cancel each other out and the 2/2 would come out to 1 making the answer B. but I'm not sure... Can someone help me figure it out and explain why it is that answer if I'm wrong?
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 19:00
Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.
Answers: 2
Mathematics, 21.06.2019 22:00
Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°
Answers: 1
Mathematics, 21.06.2019 22:10
In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2
Answers: 2
You know the right answer?
How can you write the expression with a rationalized denominator?
2+sqrt 5/ 2- sqrt 5
2+sqrt 5/ 2- sqrt 5
Questions
Biology, 31.08.2019 15:30
History, 31.08.2019 15:30
History, 31.08.2019 15:30
English, 31.08.2019 15:30
History, 31.08.2019 15:30
Mathematics, 31.08.2019 15:30
Mathematics, 31.08.2019 15:30
Social Studies, 31.08.2019 15:30
