Since she has seven key the probability that the first one will open the door is
if it takes three attempts to open the door,the probability is
if the three attempts would not work
then the probability that the fourth attempt will open the door is
hope this helps
Answer:
Step-by-step explanation:
Step 1: Write out limit
Step 2: Evaluate
(2 + 1)(3(2)² - 9)
3(3(4) - 9)
3(12 - 9)
3(3)
9
Answer:
3hr 30min
Step-by-step explanation:
3hr 30min
Step-by-step explanation:
step one:
given that the sample space is
red, yellow, green, white, and black. i.e (1+1+1+1+1)= 5
the sample size is 5
the probability of picking a colored card at random is
Pr(a colored card)= 1/5
step two:
without replacement, after the first event, the sample size is now 4
then the probability of picking a colored card at random is
Pr(a colored card)= 1/4
Answer:
Last Option moved 
units right
Step-by-step explanation:
If we have a function f(x) and we want to move it horizontally then we make the transformation:
If 
then the graph of f(x) moves horizontally h units to the right
If 
then the graph of f(x) moves horizontally h units to the left.
In this case we have the function 
and the transformation is performed to obtain 
Notice that in this transformation
<u><em>Then the graph of moves horizontally to the right</em></u>
