I believe so because in order to solve for x, you don't want it to be a negative number.
<h2>Final Answer: 13</h2>
Step By Step Explanation:
- Calculate: Calculate the sum
- Calculate: Calculate the sum or difference
- Remove the parentheses: When there is a + in front of an expression in parentheses, the expression remains the same
- Calculate: Calculate the sum or difference
<h3>☆彡Hanna</h3>
Answer:
a: 0.08, or 8% chance he wins all 3
b: 0.42, or 42% chance he wins 2
Step-by-step explanation:
P(win A) = 0.8
P(lose A) = 0.2
P(win B) = 0.5
P(lose B) = 0.5
P(win C) = 0.2
P(lose C) = 0.8
The situations are independent, so we multiply probabilities together.
To win all 3: P(win A)*P(win B)*P(win C) = 0.8*0.5*.02 = 0.08
To win 2 of the 3 there are 3 ways to do this. We add up the probabilities of the 3 situations...
P(win A)*P(win B)*(lose C) = 0.8*0.5*0.8 = 0.32
P(win A)*P(lose B)*P(win C) = 0.8*0.5*0.2 = 0.08
P(lose A)*P(win B)*P(win C) = 0.2*0.5*.02 = 0.02
0.32 + 0.08 + 0.02 = 0.42
A=14
(3*2)+(4*9)/3 do the parentheses first then add then divide
