I need help please, I'm a little confused
1 answer:
You might be interested in
Answer:
x = -1
Step-by-step explanation:
First, we can translate this statement to the equation
Subtracting 4x from both sides gives us a quadratic equation:
From here, we can factor the expression on the right to give us the equation's two solutions. The factored form will look like
We need a + b = -4 and ab = -5, and picking a = 1 and b = -5 do the job there. Our expression factors then to (x + 1)(x - 5), giving us the equation
And the solutions x = -1 and x = 5. Since we're only looking for the negative solution, x = -1 is the one we want.
I hope this helps, sorry for my messy handwriting. If you have any questions feel free to ask me!
Given:
Sample space be S = 1, 2 ,3 , 4, 5, 6.
The outcomes are equally likely.
To find:
The probability of the event E ="an even number".
Solution:
We have,
Sample space is S = 1, 2 ,3 , 4, 5, 6.
So, the total number of outcomes is 6.
E ="an even number".
E = {2,4,6}
So, the total number of favorable outcomes is 3.
The probability of the event E is
Therefore, the probability of the event E is 0.5.