Answer: 13
Step-by-step explanation: All you have to do is subtract -12 from -25 and you get -13. If it was -25 from 12 you would just add the two together.
Answer: 0.31
Step-by-step explanation:
Let A denotes the event that the students report drinking alcohol and B denotes the students report using some type of tobacco product .
Given : P(A) =0.84 ; P(B)=0.33 and P(A∪B)=0.86
We know that 
Then, the probability that the student both drunk alcohol and used tobacco in the past month is given by :-

Hence, the probability that the student both drunk alcohol and used tobacco in the past month = 0.31
Answer:
Step-by-step explanation:
radius r = 5 cm
Height h = 5 cm
Volume of cylinder = πr²h
= π * 5 * 5 * 5
= 125π cm³
Answer:
80
Step-by-step explanation:
We are given:
⇒ ![[\alpha,\beta] = [0,4]](https://tex.z-dn.net/?f=%5B%5Calpha%2C%5Cbeta%5D%20%3D%20%5B0%2C4%5D)
To find arc length, we will use the following formula,

You do 100x28=280
280/2=140.
the answer is 140