10 to the 5th power means 5 times zero, place 8 before that and it will be 800000 then multiply with 0.5 it will be 400000. In scientific notation it will be like 4x10 the 5th power.
        
                    
             
        
        
        
The sum of their speeds is 380 miles per hour. The difference of their speeds is 30 miles per hour. Then the faster plane is traveling at
.. (380 +30)/2 = 205 miles per hour
The slower plane's speed is 30 miles per hour less, so it is traveling at
.. 205 mph -30 mph = 175 miles per hour
        
             
        
        
        
Answer:
Segment EF is twice as long as segment AB. 
The length of segment EH is 16 units.
Step-by-step explanation:
its 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Hello!
Given the probabilities:
P(A₁)= 0.35
P(A₂)= 0.50
P(A₁∩A₂)= 0
P(BIA₁)= 0.20
P(BIA₂)= 0.05
a) 
Two events are mutually exclusive when the occurrence of one of them prevents the occurrence of the other in one repetition of the trial, this means that both events cannot occur at the same time and therefore they'll intersection is void (and its probability zero)
Considering that P(A₁∩A₂)= 0, we can assume that both events are mutually exclusive.
b)
Considering that  you can clear the intersection from the formula
 you can clear the intersection from the formula  and apply it for the given events:
 and apply it for the given events:


c)
The probability of "B" is marginal, to calculate it you have to add all intersections where it occurs:
P(B)= (A₁∩B) + P(A₂∩B)=  0.07 + 0.025= 0.095
d)
The Bayes' theorem states that:

Then:


I hope it helps!
 
        
             
        
        
        
Answer:
Step-by-step explanation:
You can set this up by reversing it. 
(9+4)- (x/2)
(13)-(x/2)
(13)-(2x)
=11x