3/4 is 0.75 as a decimal so 4 x 0.75 = 3
        
             
        
        
        
Answer:
It's the law of cosines
Step-by-step explanation:
law of cosines states that 
so we know that a = 7, b = 4, and alpha would be 135 degrees, so just plugging it in gets us 49+16-2*7*4*(-0.707) = 65 + 39.59 = 104.59
 
        
             
        
        
        
Answer:
As one thing decreases, the other increases
Step-by-step explanation:
 
        
                    
             
        
        
        
1/8 ÷ 4 = 
1/8 × 1/4 = 1/32
Multiply the reciprocal 
        
             
        
        
        
Answer:
y=4
Step-by-step explanation:
if y+2=6, you can subtract 2 from both sides, giving you y=6-2. 6-2=4, which is y.