A. 2.
A radical is an expression which implies the use of a root.
There are three components of a radical expression:
(i) The root "√".
(ii) The radicand √"a".
(iii) The degree or index of the radical , when index of the radical is not shown then it understood to be a index of 2.
The index is the number used to indicate the degree of the root.
For the example , 10 is the radican and the index is not shown so it understood is 2.
Answer:
answers are a d and b
Step-by-step explanation:
11/26 chance that the student plays both instruments.
First, add the amount of students that just play flute or piano:
3 + 5 = 8
Then add 8 to the amount that does not play either instrument:
8 + 7 = 15
Then do:
26 - 15 = 11
Then place 11 over the amount of people:
11/26
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