Answer: 6 times 10 Superscript 11
Step-by-step explanation:
Scientific notation is in the form ;
A.0 x 
,
where :
A = any number from 1 to 9
n = integers , that is , n must be whole numbers
Following this rule , the correct answer is
6 x 
which is 6 times 10 Superscript 11
Answer:
see explanation
Step-by-step explanation:
using the identity
cos2a = 2cos²a - 1 , then
cos2a
= 2[ 
(a + 
) ]² - 1
= 2 [ 
(a² + 
+ 2) ] - 1
= (a² + ) + 1 - 1
= (a² + ) ← thus verified
I’m not too sure but i think The area of one is 4 inches. There are 8 squares on each side, so when finding the area of the board, you get 64. The checkerboard is 16 inches long, and there are 8 squares, so it is approximately 2 inches long. To find area, you multiply length by width. Since they are squares, it would be 2*2, which leads you to the answer of 4. Hope this helps!
