Step-by-step explanation:
Since they have a common denominator the answer is (-5 + 2) / 6 = -3 / 6 = -1/2.
The answer is B because the bottom has to be supplementary to 180 degrees because their supplementary angles
Answer:

Step-by-step explanation:
Probability refers to chance of happening of some event.
Conditional probability is the probability of an event A, given that another event B has already occurred.
denote the two boxes.
In box
:
No. of black balls = 1
No. of white balls = 1
In box
:
No. of black balls = 2
No. of white balls = 1
Let B, W denote black and white marble.
So, probability that either of the boxes
is chosen is 
Probability that a black ball is chosen from box
= 
Probability that a black ball is chosen from box 
To find:probability that the marble is black
Solution:
Probability that the marble is black = 
<h3>
Answer: Choice A) 50</h3>
For two numbers x and y, the geometric mean is G = sqrt(x*y)
In this case, x = 25 and y = 100, so
G = sqrt(x*y)
G = sqrt(25*100)
G = sqrt(2500)
G = 50
The person who’s answering the question right now please please help me the one with red profile please help me