Answer:
10 / 21
Step-by-step explanation:
Given:
5:(21/2)
Find:
Simplest form
Computation:
⇒ 5:(21/2)
⇒ 5:(10.5)
⇒ 5 / 10.5
⇒ 50 / 105
It's C.7
Use the foil method
the square root of 75 is either or 8.66
30=2*3*5, so it's 30
15=3*5, so it's not 15
20=2*2*5, so it's not 20
57=19*3, so it's not 57
rational
