Answer:
wheres A
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
length of an arc(s) = θ/360 x 2πr
where θ is the central angle and r is the radius
 
        
             
        
        
        
¾ an hour is 45 minutes
So to have your answers you need to do a cross product :
45 minutes —> 2/3 of a chapter
60 minutes —> X of a chapter
((2/3) • 60) / 45 
40/45 = 8/9
Answer : You read 8/9 of a chaper per hour! :)
        
             
        
        
        
Answer:
b=204
Step-by-step explanation:
The law of sine states that: 
We know that a triangle has 180° total, so we can subtract the two angle measures we know to find the third angle:  °.
°. 
Using these two things, we can come up with the equality  , which we can use to solve for side b.
, which we can use to solve for side b. 
 , so we know that
, so we know that  .
. 
Next, we would multiply both sides by b to get  .
. 
Sin49°≈0.75471, so to find b we would multiply 0.75471×270=203.77
Since the problem asks us to round to the nearest whole number, b=204
Hope this helps! :)