Answer:
Step-by-step explanation:
Convert rectangle (x , y) to polar coordinates ( r , θ)


a) converts (9, 0) to polar coordinates  ( r , θ)


b) Convert  to polar coordinates ( r, θ)
 to polar coordinates ( r, θ)


c)  converts (-5, 5) to polar coordinates  ( r , θ)


d)  converts (-1, √3) to polar coordinates  ( r , θ)



 
        
             
        
        
        
Answer:
french
Step-by-step explanation:
convert both to percentage: 
1. spanish:

 
2.French: 

therefore Claire did better in the French test
 
 
 
        
             
        
        
        
Answer:
See description below.
Step-by-step explanation:
A distance -time graph of Maria's journey would look like a very steep line with slope 100 meters/1 minute until minute 4. At minute 4, Maria stopped to talk so it would like a horizontal flat line at that same distance for 3 minutes. This means at minute 7, Maria began walking again. From minute 7 on would be a positive line heading up with a slope of 75 meters/ 1 minute.
 
        
             
        
        
        
There are 2 answers for this in my opinion
1. nothing happens because its still in the origin and that won't change
2. depending on which way you turn it the points will change based on that
so if you know how to use a graph you should be good
        
             
        
        
        
Answer:
Option C
The student's conclusion is correct because the solution to the system of equations  and
  and  is
 is 
Step-by-step explanation:
Let
x------> the cost of each burger
y-----> the cost of each sandwich
we know that
 -----> equation A
 -----> equation A
 
 
 ----> equation B
 ----> equation B
Solve the system of equations
Multiply the equation B by 
 ----->
 -----> ------> equation C
 ------> equation C
Adds equation A and equation C

Substitute the value of x in the equation B



The solution of the system of equations is the point 
so
The price of each burger is 
The price of each sandwich is 