Answer:
5
Step-by-step explanation:
Answer:
angle DEF = 75 degrees
Step-by-step explanation:
angle DOF = 150 degrees, then arc DF also = 150 degrees
angle DEF = 1/2 arc DF = 75 degrees
Answer:
Step-by-step explanation:
Use FOIL.
Answer:
108
Step-by-step explanation:
Limit as x approaches 9 of x^2 -81/sqrt of x - 3
First substitute x into the expression
= 9²-81/√9 - 3
= 81-81/3-3
= 0/0 (indeterminate)
Apply l'hospital rule
= lim x -> 9 d/dx(x²-81)/√x - 3
= lim x -> 9 2x/1/2√x
Substitute x = 9
= 2(9)/1/2√9
=18/1/(2(3)
=18 × 6/1
= 108
Hence the limit of the function is 108