Answer:
bhet
Step-by-step explanation:
see ya there
 
        
                    
             
        
        
        
9514 1404 393
Answer:
   obtuse
Step-by-step explanation:
The law of cosines tells you ...
   b² = a² +c² -2ac·cos(B)
Substituting for a²+c² using the given equation, we have ...
   b² = b²·cos(B)² -2ac·cos(B)
We can subtract b² to get a quadratic in standard form for cos(B).
   b²·cos(B)² -2ac·cos(B) -b² = 0
Solving this using the quadratic formula gives ...
   
The fraction ac/b² is always positive, so the term on the right (the square root) is always greater than 1. The value of cos(B) cannot be greater than 1, so the only viable value for cos(B) is ...
   
The value of the radical is necessarily greater than ac/b², so cos(B) is necessarily negative. When cos(B) < 0, B > 90°. The triangle is obtuse.
 
        
                    
             
        
        
        
First question 
Volume = height * radius*radius*3.14 
5*3*3*3.14 = 141.3 in3 
Second qustion 
 Violume = height * radius * radius * 3.14 
28*8*8*3.14= 5626.88 cm3 
So the answer is 1875.63 because it's the closest
        
                    
             
        
        
        
Answer: The tripled tofu is 4 lb. 14 oz. Explanation: So you first want to turn your mass into the same unit, so change the pounds of tofu into ounces. There are 16 ounces in a pound, which means the total mass of the original tofu could be written as (16 oz.) + 10 oz. = 26 oz. tofu. Multiply this by 3, and you have tripled the tofu. 3 * 26 = 78. To simplify it, divide 78 oz by 16 to find pounds, and leave the remainder in ounces. 78/16 = 4 lb. 14 oz tofu.
        
             
        
        
        
ANSWER

EXPLANATION
The given fraction is,

To get an equivalent fraction, we multiply both the numerator and the denominator by the same quantity that will give us 
w²+w-20 
in the denominator.
This implies that,

We multiply out the numerators and denominators using the distributive property to obtain,

This simplifies to 
