Answer:
C
Step-by-step explanation:
Let the first term be a and the common ratio be r. 
ATQ, ar^4=24 and ar^6=144, r=sqrt(6) and a=24/(sqrt(6))^2=24/36=2/3
 
        
             
        
        
        
Answer:
hope it helps...
Step-by-step explanation:
The value of the constant of proportionality is k=5k=5
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=ky/x=k or y=kxy=kx
The value of the constant k is equal to the value of the slope
In this problem we have
y=5xy=5x ------> is a linear direct variation
The slope is m=5m=5
therefore
The value of the constant of proportionality is k=5k=5
 
        
             
        
        
        
Answer:
7√2 
Step-by-step explanation:
Thank to the give angle we can say that the two legs are congruent
b = 
98/2 = 49 
49/7 = 7 
7/7 = 1
98 = 7^2 x 2 
√98 = 7√2