They are actually the same.....Hope this helped you!!
Answer:

Step-by-step explanation:
Answer:
The exact value of cos(45°) is √(2) / 2.
Step-by-step explanation:
Answer: (c) y<=-x+4
The area is shaded UNDER the boundary line, hence "<"
The boundary is plotted as solid line, hence "="
Answer:
I'm pretty sure it's D, sorry if I'm wrong
Step-by-step explanation: