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:
One inference that can be made is that the age group of 12-19 consume more sodas than the age group of 20-39.
Step-by-step explanation:
Number 12. Is -4ySquared+5y-9
Answer:
28/3 or 9⅓
Step-by-step explanation:
2/3 = x/14
x = 2×14/3
x = 28/3