Answer:
you didn't add the solution sets
Step-by-step explanation:
The number of participants increased by a factor of 200 from 2010 to 2013.
A = 71.5 degrees (1 dp)
cos(A) = (21^2 + 16^2 - 22^2) / (2 x 21 x 16)
= 0.31696...
A = cos^-1(0.31696...) = 71.5 degrees
Answer:
See below.
Step-by-step explanation:
The difference of 2 cubes identity is:-
a^3 - b^3 = (a - b)(a^2 + ab + b^2).
Always if you multiply a rational number by another you will get a rational number