Answer:
Jason Inherit a land with a 45% chance of having oil.
Step-by-step explanation:
The probability of the land having oil is = P
(
O)
=
45
/100
The probability of the land having oil is= Q(O
)
=55/100
The machine has an accuracy of 80%. This suggests that 8 out of 10 times the machine will give a wrong reading.
The probability of the correct reading is= P(M)=80/100
The probability of the incorrect reading is=Q(M)=20/100
The case when the machine predicts there is no oil and there is indeed oil can be calculated:Probability=Probability of oil present × probability of the incorrect reading
Probability=P(O) x Q(M)
Probability=45/100 x 20/100
Probability=9/100
The probability of the test predicting no oil in land and the land has oil is 0.09 or 9%
<h3>
Answer:</h3>
![x=2](https://tex.z-dn.net/?f=x%3D2)
<h3>
Explanation:</h3>
Represent the sentence mathematically. ![2(x-3)=-2](https://tex.z-dn.net/?f=2%28x-3%29%3D-2)
Distribute. ![2x+(2*-3)=2x-6=-2](https://tex.z-dn.net/?f=2x%2B%282%2A-3%29%3D2x-6%3D-2)
Add 6 on both sides. ![2x=-2+6=4](https://tex.z-dn.net/?f=2x%3D-2%2B6%3D4)
Divide both sides by 2. ![x=2](https://tex.z-dn.net/?f=x%3D2)
Answer:
B. 45
Step-by-step explanation:
do 12×12 which is 144 then Davide it by 2 because it's a triangle then do 9×3 which is 27 then subtract that from 72 and you get 45.
Answer:
yes
Step-by-step explanation:
y < 2x +4
6 < 2·5 +4
6 < 14