Good evening ,
Answer:
The inverse of the function y = x² - 12 is 
x = √(y + 12)
Step-by-step explanation:
for y ≥ -12 :
x² - 12 = y ⇔ x² = y + 12 ⇔ x = √(y + 12).
:)
 
        
             
        
        
        
Answer:
A computer costs $225 and a printer $150.
Step-by-step explanation:
Let c be the cost of a computer and p the cost of a printer, then:
3c + p   = 825
4c + 2p = 1200
Multiply the first equation by -2:
-6c - 2p = -1650
Add this to the second equation:
-2c = -450
c = 225.
Now substitute  c = 225 in the first equation:
3*225 + p = 825
p = 825 - 675 =  150.
 
        
             
        
        
        
7.5 is the answer for this questio
        
             
        
        
        
Answer: -1
Step-by-step explanation:
1 - (-3) - 5 = 1 + 3 - 5
Thats because subtracting by a negative number is the same as adding the negative number's absolute value (Distance away from zero).
(1 + 3) - 5 = -1
PEMDAS Addition and Subtraction from left to right.
 
        
             
        
        
        
Answer:
Can i have a diagram please
Step-by-step explanation: