Answer:
(1.5,-2.6)
Step-by-step explanation:
Given the polar coordinates (-3,60°).
Let our Cartesian coordinates be (x,y)
#We know that when converting the rectangular coordinates (x,y) to polar (r,θ), then:

#Using the illustration above, we can express our polar coordinates as:

#Solve simultaneously to solve for x and y:

Hence, the Cartesian coordinates are (1.5,-2.6)
 
        
             
        
        
        
Answer:
The answer is A; H(a) = 3.00a +19.00; shift 15 units up
Step-by-step explanation:
If the downloading feature is enabled the cost function becomes H(a) = 3.00a + 19.00 
The y-interpret of H(a) is 15 greater than the y-intercept if C(a)
The slopes of both functions are the same 
 
        
             
        
        
        
2. random samples are the least biased samples.
        
             
        
        
        
Answer:
I am not sure I am so so so sorry My friend