9514 1404 393
Answer:
- base area: 21 ft²
- volume 105 ft³
Step-by-step explanation:
The area of a triangle is given by the formula ...
   A = (1/2)bh
The base and height of a right triangle can be taken to be the leg lengths, since each is perpendicular to the other.
   A = (1/2)(6 ft)(7 ft) = 21 ft² . . . . base area
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The volume is the product of the base area and the height:
   V = Bh
   V = (21 ft²)(5 ft) = 105 ft³ . . . . volume
 
        
             
        
        
        
Answer:
37.79924
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
4.806 g ≤ n ≤ 5.194 where n is the mass of a nickle. 
Step-by-step explanation:
The problem tells us the weight can vary by .194 g, this means it can be up to .194 lighter and 194 heavier.  Well what value is .194 lighter and .194 heavier?  4.806 and 5.194 respectively.  So that means a nickle can be anywhere in that range, which tells us the inequality.
 
        
             
        
        
        
What you have here is the fibonacci sequence. 
Each number in the sequence adds itself to the number before it.
1+1 = 2
1+2 = 3
3+2 = 5
5+3 = 8
8+5 = 13
the sequence is 0,1,1,2,3,5,8,13
        
             
        
        
        
you don't have enough info, we need to know how old he was when he was twice her age, or how old she was