Answer:
20π cm
Step-by-step explanation:
The circumference (C) of a circle is calculated as
C = 2πr ( where r is the radius )
Here r = 10 , thus
C = 2π × 10 = 20π cm
Answer:
y = 3
Step-by-step explanation:
Subtract 11 from both sides to get:
2y = 6
Then divide both sides by 2 to isolate y:
y = 3
C.-10 is the answer because
15/124 is 1860 multiply
230/30 is 6900 multiply
1860 and 6900 is 8760 addition
230/124 is 28520 divided by 8760 is 3.2
tried :)
A(1) = - 3 ;
a(2) = a(1) + ( 2 - 1 )d ;
3 = -3 + d ;
d = 6 ;
a(3) = a(1) + ( 3 - 1)d;
9 = - 3 + 2d ;
12 = 2d ;
d = 6 ;
a(4) = a(1) + ( 4 - 1 )d ;
15 = -3 + 3d ;
18 = 3d ;
d = 6 ;
Then, a(n) = - 3 + ( n- 1 )6 ;
a(n) = - 3 + 6n - 6 ;
a(n) = 6n - 9 is an explicit functin rule for the sequence -3, 3, 9, 15, ...
