Answer with Step-by-step explanation:
We are given that

when x<9
when 
LHD

=
RHD



Hence, the function is not differentiable at x=9
Step-by-step explanation:
u should:
7t = t + 48 » 7t - t = 48 » 6t = 48 » t = 8
and another one is:
2u + t + 13 = 10t + u - 44» 2u + 8 + 13 = 80 + u - 44»
» 2u + 21 = u + 36 » 2u - u = 36 - 21 » u = 15
Answer <span>-7/24 - (-5/8) = 1/3</span>
Answer:
2,742.50
Step-by-step explanation:
2194 x 1.25 = 2742.50