Answer:
48 degrees
Step-by-step explanation:
7X-1+12x+48=180
19x+47=180
19x=133
x=7
7(7)-1=A
49-1=A
48=A
A is 48 degrees
Answer:
$828.75
Step-by-step explanation:
Mobile Phone costs : $975
Discounted Price :- ( $975 * 15% = 146.25 , $975 - 146.25 = 828.75 )
So the phone would cost $828.75 after the discount.
The formula for the area of a circle is 
So if we have the first one...
≈78.5
Now you can solve the other ones with this formula! Good luck!
Answer:
x = 3 + 2 sqrt3 Or 3 - 2 sqrt 3
Step-by-step explanation:
The number can be written as a riot of two decimal numbers e.g 3/10