Answer:
Step-by-step explanation:
30 meters
 
        
             
        
        
        
Draw a rectangle 37 cm by 42 cm and then count how many 1cm by 1cm squares are inside it.
        
             
        
        
        
Answer:
x=  0.5
 or x=  -1.5
Step-by-step explanation:
Let's solve your equation step-by-step. 
4x2+4x−3=0 
Step 1: Factor left side of equation.
 (2x−1)(2x+3)=0 
Step 2: Set factors equal to 0.
 2x−1=0 or 2x+3=0 
x= 1/2 or x= −3/2
 
        
             
        
        
        
Answer:
p(blue or red) = 0.52 = 52%
Step-by-step explanation:
total number of marbles = 7 + 10 + 14 + 19 = 50
number of blue marbles = 7
number of red marbles = 19
number of blue or red marbles = 7 + 19 = 26
p(blue or red) = 26/50
p(blue or red) = 0.52 = 52%