Answer:
117
Step-by-step explanation:
216/3=72
216-72=144
144-26=117
Answer:
y = (√7)/4
Step-by-step explanation:
The equation of the unit circle is ...
x^2 +y^2 = 1
Putting the given value in for x, we can find y to be ...
(-3/4)^2 +y^2 = 1
y^2 = 1 -(-3/4)^2 = 1 -9/16 = 7/16 . . . . . subtract 9/16
y = √(7/16) . . . . . . . . . . . take the square root; y > 0 here
y = (√7)/4
Answer:
Option b
Step-by-step explanation:
- Calcium has atomic no-20
- Hence it has 20 protons
- Silicon has atomic no 14
- Hence it has 14protons
Total:-

Answer:

Step-by-step explanation:
The sum is larger than 9, it means we have: 10, 11, and 12
- To get the outcome is 12, we have only one way is that the two dice shows face-6. The probability to have 12 is:
P(12) =
=
- To get 11, we have it two ways once dice shows face-5 and the other shows face-6 and vice versa
P(11) = 2*
= 
- To get 10, we have it three ways ( once dice shows face-5 and the other shows face-6 and vice versa , two dice show 5)
P(10) = 3*
=
So the probability of getting a number larger than 9 for the first time on the third roll is:
P(12) + P(11) +P(10 )
=
+
+
= 