Answer:
2 one that's the right one
 
        
             
        
        
        
Answer:
tan38 = 0.31
cos47 = -0.99
sin77 = 0.99
Step-by-step explanation:
There are several free online calculators that can help you do this! I recommend Desmos!
 
        
             
        
        
        
√45 = √9√5 = 3√5
√20 = √4√5 = 2√5
3√5+2√5-√5=4√5
answer = 4√5 
:)
        
             
        
        
        
Answer: 6 days
Explanation: If he washes 75 cars in 5 days; and you need to find how many days it takes to wash 90 you do 75 divided by 5 which is 15; so he washes 15 cars in a day, then do 90 divided by 15 which is 6 days
        
             
        
        
        
4 and 8 would be the anwser because 4 x 2 = 8 and then 8x1=8