Question

(√(5)+√(2))/(√(5)-√(2)) how would I rationalize the denominator and solve

Answer 1

multiply that fraction by conyugate of the denominator
hint : conyugate of √(5)-√(2) is √(5)+√(2)

Answer 2

ok, wat do I do next?

Answer 3

multiply both fractions :)

Answer 4

for my answer I got 7+2squareroot of 10/3

Answer 5

yes, u are right

Answer 6

ok can i ask you another question if thats ok?!

Answer 7

sure

Answer 8

how would I start graphing this inequality. y<-x^(2)+5

Answer 9

is it an equality ?

Answer 10

i meant inequality

Answer 11

y≤-x^(2)+5

Answer 12

actually, suppose it be an quadratic equation y=-x^2+5

Answer 13

to graph that function, u can use the steps bellow
1) find x-intercept (miss it if there are not points x-intercept)
2) find y-intercept by take x=0
3) determine the vertecs (x=-b/2a , to get y just subtitute x-vertec to f(x))
4) make a graph and utilize according to the values above

Answer 14

another way, use wolfram :)
http://www.wolframalpha.com/input/?i=y%3C%3D-x^2%2B5

Answer 15

thanks

Answer 16

you're welcome