Answer:

Step-by-step explanation:
Use this formula,

where n is the amount of even intergers, a is the starting term, d is the common difference.
-  the amount of even intergers from 2 to 200 is 100
- The starting number is 2
- The common difference is 2




 
        
             
        
        
        
The vector AB is found by subtracting the coordinates of point B from the coordinates of point A => (8, 3, 4) - (5, 7, - 2)
(8, 3, 4) - (5, 7, - 2) = (3, - 4, 6)
=>
a) a 3 x 1 column = 
|  3  |
| -4  |
|  6  |
b) xi + yj + zk
=> 3i - 4j + 6k
        
             
        
        
        

It is non recurring number
Hope it helps you
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Hello!
I'll express all the given percentages as probabilities:
Given the events:
Banking online (Bo)
Under the age of 50 (<50)
P(Bo)= 0.30
P(<50)= 0.40
P(Bo ∩ <50)= 0.25
1) What percentage of adults do not conduct their banking online? 
The event "adults that do not conduct their baking online" is the complement of the event "adults that conduct their baking online" Symbolically 
P( )= 1 - P(Bo)= 1 - 0.30 = 0.70
)= 1 - P(Bo)= 1 - 0.30 = 0.70
2) What type of probability is 25%?
The probability P(Bo ∩ <50)= 0.25 is a joint probability, it indicates the intersection between both events.
3) Construct a contingency table showing all joint and marginal probabilities. 
Check attachment.
4) What is the probability that an individual conducts banking online given that the individual is under the age of 50?
Symbolically:
P(Bo/<50)= <u> P(Bo ∩ <50) </u> = <u> 0.25 </u> = 0.625
                        P(<50)            0.40
I hope it helps!
 
        
             
        
        
        
Answer:
2x = 10
Step-by-step explanation:
7 + 3x = 22
-7           -7
Subtract 7 from both sides (you are trying to get the variable alone, and to do that, you have to get every other number to 0. <em>7 - 7 = 0</em>. BUT, whatever you do, you have to do to both sides.)
3x = 15
/3    /3 
Divide both sides by three to get the variable alone.
x = 5
Now, plug in the value of x to the second equation and solve.
2(5) = ? --> 10