Answer:
Step-by-step explanation:
1. Calculate x
2. Calculate y
Check:
7×18 - 23 = 3 × 18 + 49 3 × 18 = 11 × 5 - 1
126 - 23 = 54 + 49 54 = 55 - 1
103 = 103 54 = 54
OK.
1.
Area of shaded region,
=(Area of bigger circle) - (Area of smaller circle)
=πR^2 - πr^2
=π ( R^2 - r^2 )
=3.14 ( 8^2 - 4^2)
=3.14 × ( 64 - 16 )
=3.14 × 48
=150.72 cm^2
2.
Area of shaded region,
=(Area of big semi-circle) - ( Area of small semi-circle)
=(πR^2)/2 - (πr^2)/2
=π/2 ( R^2 - r^2 )
=3.14/2 ( 6^2 - 3^2 )
=1.57 × ( 36 - 9 )
=1.57 × 27
=42.39 cm^2
HOPE THIS WILL HELP YOU
Answer:
I am pretty sure 5/6 and 1/12
Step-by-step explanation:
Because 5/6 = 0.83333 (repeating) -- which means you use bar notation over the three
The same for 1/12 = 0.083333 (repeating) -- which means you use bar notation over the three
The answer is 36
if you substitute the numbers in, the equation would be..
-3(2-4)^2 so
2-4 is -2
-3 x -2 = 6
and 6^ is the same thing as 6 x 6
so 6^2= 36