Answer:
top right
Step-by-step explanation:
If you imagine yourself building with that model you can see its that one
 
        
             
        
        
        
Answer:
A. x=0
Step-by-step explanation:
x+20+10x=20+9x
cancel equal terms
x+10x+9x
add x to 10x
11x=9x
move variable to left
11x-9x=0
subtract 11x to 9x
2x=0
divide Both sides by 2
x=0
 
        
             
        
        
        
Answer:
Frank
Step-by-step explanation:
First let's start by calculating the speed of each runner. 
Let's use feet per second
Frank's speed is already given in feet per second: 14 feet/second
We are given that Jake runs 382 feet in 38 seconds. To bring this down to feet/second we need to divide both numbers by 38. 
382/38=10.05 feet/second (about)
We are given that Will runs 1 mile in 394 seconds. 1 mile is equivalent to 5280 feet. Now we divide both numbers by 394 to bring it down to feet/second. 
5280/394=13.401  feet/second (about)
We are given that Ron runs 555 feet in 1 minute. 1 minute is equivalent to 60 seconds. Now we divide both numbers by 60 to bring it down to feet/second. 
555/60=9.25 feet/second 
After comparing all the speeds, we can conclude that Frank runs the fastest
 
        
             
        
        
        
Answer:
300 is your answer
Step-by-step explanation:
 
        
             
        
        
        
X^2 + 4x + 8 = 0
( x + 2 ) ( x + 2 ) = 0
i am a mathematics teacher. if anything to ask please pm me