Answer:
27.
Step-by-step explanation:
x/3 −9=0 Step 1: Simplify both sides of the equation. x/3 −9=0 1/3 x+−9=0 1/3 x−9=0 Step 2: Add 9 to both sides. 1/3 x−9+9=0+9 1/3 x=9 Step 3: Multiply both sides by 3. 3*( 1/3 x)=(3)*(9) x=27
31 because two more tens is equal to 20. so 20+11 is 31
1. Trapezoid
2. Kite
3. Y = 75°
Hope this helps and feel free to ask me if you have any concerns!
Answer: ![\text{P(A or B)}=0.90](https://tex.z-dn.net/?f=%5Ctext%7BP%28A%20or%20B%29%7D%3D0.90)
![\text{P(A and B)}=0.18](https://tex.z-dn.net/?f=%5Ctext%7BP%28A%20and%20B%29%7D%3D0.18)
Step-by-step explanation:
Given : P(A)=0.60 and P(B)=0.30
We will say A and B are independent events if :
![\text{P(A or B)=P(A)+P(B)}\\\\=0.60+0.30=0.90](https://tex.z-dn.net/?f=%5Ctext%7BP%28A%20or%20B%29%3DP%28A%29%2BP%28B%29%7D%5C%5C%5C%5C%3D0.60%2B0.30%3D0.90)
![\text{P(A and B)=P(A) x P(B)}\\\\=0.60\times0.30=0.18](https://tex.z-dn.net/?f=%5Ctext%7BP%28A%20and%20B%29%3DP%28A%29%20x%20P%28B%29%7D%5C%5C%5C%5C%3D0.60%5Ctimes0.30%3D0.18)
Thus , A and B are independent events if :
![\text{P(A or B)}=0.90](https://tex.z-dn.net/?f=%5Ctext%7BP%28A%20or%20B%29%7D%3D0.90)
![\text{P(A and B)}=0.18](https://tex.z-dn.net/?f=%5Ctext%7BP%28A%20and%20B%29%7D%3D0.18)
751 ? seven hundred and fifty-one