Answer:
14 -2i
Step-by-step explanation:
9 + sqrt(-4) - ( -5 + sqrt(-16))
We know the sqrt of a negative number is i * sqrt(number)
9 + isqrt(4) - ( -5 + isqrt(16))
9 + 2i - (-5 + 4i)
Distribute the negative sign
9+2i +5 -4i
Combine like terms
14 -2i
 
        
             
        
        
        
Answer:
the answer is:
The dilation is an enlargement because the image, triangle A'B'C', is larger than the pre-image, triangle ABC.
Step-by-step explanation:
I got it right on edge
 
        
                    
             
        
        
        
Answer:
(3,6)
Step-by-step explanation:
The triangle shown in figure is translated up 5
To find how coordinate of C
Original coordinate of C:(2,1),
Translation has two types: verbal and horizontal.
For verbal translation: either shift up or down
1.	For up shift: add value in Y-cordinate  
2.	For down shift: subtract value in y coordinate
•	For horizontal translation: either shift left or right
I.	For left shift: subtract value in x-cordinate
II.	For right shift: add value in x-cordinate
C: (3,1)shift 5 unit up
So, add 5in y-cordinate
(3,1)→(3,1+5)
(3,1)→(3:6)
Hence, the new coordinate of point C is (3,6)
 
        
             
        
        
        
Answer:
Okay so this is simple addition, once you know how to do it. 
The interior angles of a triangle should always add up to 180 Degrees. 
Now that you know this, all you have to do is add the numbers together and see which ones add up to 180 degrees. 
A. - 90+42+58=190
B. - 60+60+60=180
C. - 100+48+42=190
D. - 31+75+70=176
Out of these choices the only one that adds up to 180 is B. So your answer would be B. 
Read more on Brainly.com - brainly.com/question/2547568#readmore
Step-by-step explanation: