Answer:
dependent, 39/155
Step-by-step explanation:
Since the checkers are not replaced, the events are dependent since the number of checkers in the bag when you pick the second time depends on the first pick.
31 checkers—13 red and 18 black.
P(red) = red/ total
= 13/31
Keep the checker
Then 30 checkers—12 red and 18 black.
P(black) = black/ total
= 18/30 = 3/5
P ( red, keep,black) = 13/31 *3/5
39/155
Answer:
(a) 
(b) 
Step-by-step explanation:
(a) 
can also be written as 
x 
the = ± y
Therefore :
= ±
since it was given that y < 0 , then the factor will be
(b) 
can also be written as : 
x
Therefore , one of the factor is
Answer:
<h3>The answer is option 3 </h3>
Step-by-step explanation:
4x² - 2y
when
x = - 2 and y = - 1
Substitute the values of x and y into the expression and simplify
That's
We have the final answer as
<h2>18</h2>
Hope this helps you
Answer:
n > -2 or n < -3
Step-by-step explanation:
|2n+5| > 1
We have two solutions one positive and one negative. Remember to flip the inequality symbol for the negative
2n+5 > 1 or 2n+5 < -1
Subtract 5 from each side
2n+5-5 > 1-5 2n+5 -5 < -1 -5
2n >-4 2n < -6
Divide by 2
2n/2 > -4/2 2n/2 < -6/2
n > -2 or n < -3
Answer: A
explanation: the vertex in this graph is the lowest point, making it a minimum vertex. If it was the highest point, it would be maximum
