Answer:
1. In the multiplication of the imaginary parts, the student forgot to square of i. OR
2. The student has only multiplied the real parts and the imaginary parts. 
Correct value  .
.
Step-by-step explanation:
The given expression is

A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i.
Student's mistake can be either 1 or second:
1. In the multiplication of the imaginary parts, the student forgot to square of i.
2. The student has only multiplied the real parts and the imaginary parts. 

Which is not correct. The correct steps are shown below.
Using distributive property, we get



 
       ![[\because i^2=-1]](https://tex.z-dn.net/?f=%5B%5Cbecause%20i%5E2%3D-1%5D)


Therefore, the correct value of  is
 is  .
.
 
        
             
        
        
        
Answer:
-6
Step-by-step explanation:
1) combine all like terms
(bring 3q to the left and 11 to the right so you can combine the like terms)
(doing that will make 3q negative and 11 negative since your moving them so their sign changes as well)
8q-3q=-19-11
5q=-30
Q=-6
Hope this helps
 
        
             
        
        
        
Answer:
5500 pounds
Step-by-step explanation:
if you mean 2¾
in 2 tons there's 4000 pounds
in ¾ of a ton there is 1500 pounds
4000 + 1500 = 5500 pounds
 
        
             
        
        
        
Solution :
Given the equation :




n = 9



Therefore the vertex form of  is
  is   .
.
 
        
             
        
        
        
Answer:
no
Step-by-step explanation:
false 
irrational numbers cannot be rational