Answer:
-5.875
Step-by-step explanation:
 
        
             
        
        
        
The answer is B.  2(4) + 3(24) = 80
1(4) + 4(24) = 100
 
        
                    
             
        
        
        
1. a²+b²=c²
a=6²=36
b=x²
c=15²=225
x=√189 feet deep (the square root of 189)
2. a²+b²=c²
a=3²=9
b=x²
c=5²=25
x=√16=4
Hope that helped
;)
        
             
        
        
        
Answer:
P = 0.041553
Step-by-step explanation:
Probability that a student considers calculus exciting. = 0.84
Probability that a student finds calculus not exciting = 0.16
This is a binomial experiment.
 p = 0.84 and n = 29
The probability of observing 28 or more of the students who consider calculus to be an exciting subject in our sample of 29 is given by:
 
 
P = 0.041553
 
        
             
        
        
        
Answer:
5cm
Step-by-step explanation:
A=4πr2 =  100πcm2 
r = 5