Answer:
d = 7.2
Step-by-step explanation:
12 + d = -4.8 
subtract 12 from both sides and you get
d = 7.2
 
        
                    
             
        
        
        
Answer:
A
Step-by-step explanation:
note that i = 
given
- 1 + 2i
= - 1 + 
= - 1 + 
 
        
             
        
        
        
Answer:
N = 920(1+0.03)^4t
Step-by-step explanation:
According to the given statement a car repair center services 920 cars in 2012. The number of cars serviced increases quarterly at a rate of 12% per year after 2012.
Rate is 12 % annually
rate in quarterly = 12/4= 3%
We will apply the compound interest equation:
N=P( 1+r/n)^nt
N= ending number of cars serviced.
P=  the number of cars serviced in 2012,
r = interest rate
n = the number of compoundings per year
t= total number of years.
Number of compoundings for t years = n*t = 4t
Initial number of cars serviced=920
The quarterly rate of growth = n=4
r = 3%
The growth rate = 1.03
Compound period multiplied by number of years = 920(1.03)^4t
Thus N = 920(1+0.03)^4t
N = number of cars serviced after t years...
 
        
             
        
        
        
99 pounds in kilograms would be 44.906kg
Hope this helped you!
        
                    
             
        
        
        
Answer:
The area of a rhombus is  square units.
 square units.
Step-by-step explanation:
Side length of rhombus = 6 units.
Interior angle of rhombus = 120°
another Interior angle of rhombus = 180°-120° = 60°.
Draw an altitude.
In a right angled triangle 



Multiply both sides by 6.

The height of the rhombus is  .
.
Area of a rhombus is



Therefore, the area of a rhombus is  square units.
 square units.