Answer: did u ever get the right answer?
Step-by-step explanation:
Wavelength denotes the time for one cycle of a periodic process
We have that
2r−9≤−6------> 2r ≤ -6+9-------> 2r ≤ 3-----> r ≤ 1.5
the solution is the interval (-∞, 1.5]
using a graph tool
see the attached figure
Answer: X = 6
Step-by-step explanation:
Substitute the x’s in the equation for the answer options that are provided.