rearrange the equation to where you set it equal to 0 by moving the 25 over.
n2 - 8n -9 = 0
now factor
(n-9)(n+1)
so n1 = 9
n2 = -1
The answer is a² + 6. "Sum of a squared and 6" means you square a value and then add 6 to it.
Answer:
a= 4x+15/x+3
Step-by-step explanation:
25% because the first FLIP, it was a fifty-fifty chance. FLIP again and the chances are divided by two since you can only get 2 things, either heads or tails.
<u>The probability that the marble will be blue if he shakes the bag and when you puts his hand into the bag, to move it around and probably he'll get the blue marble.</u>
<em>Hopefully, it correct.... :)</em>
