Answer:

Step-by-step explanation:
In  ,
,  represents a constant related to the period of the function. Here's how it's related:
 represents a constant related to the period of the function. Here's how it's related:
 , where
, where  is the period of the function.
 is the period of the function.
We're given  , so solving for
, so solving for  :
:

 
        
             
        
        
        
Answer: B
Step-by-step explanation:
 
        
             
        
        
        
We know that
If a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment. (Intersecting Secant-Tangent Theorem)
so
ST²=RT*QT
RT=7 in
QT=23+7-----> 30 in
ST²=7*30-----> 210
ST=√210-----> 14.49 in
the answer is
RT=14.49 in
 
        
        
        
Answer:
10
Step-by-step explanation: