Answer:
The ocean surface is at 0 ft elevation. A diver is underwater at a depth of 138 ft. In this area, the ocean floor has a depth of 247 ft.
Step-by-step explanation:
The answer to your question is 18/25
Answer: adjacent, adjacent & complimentary
<u>Step-by-step explanation:</u>
→ ∠CEA and ∠CEF share a common side so they are adjacent
The sum of their angles is not 90° or 180° so they are not complimentary or supplementary. They are not across from each other so they are not vertical.
→ ∠FEB and ∠BED share a common side so they are adjacent.
→ The sum of their angles is 90° so they are complimentary.
The sum of their angles is not 180° so they are not supplementary. They are not across from each other so they are not vertical.
Answer:
adding both equations
4x+9y=5
-4x+7y=11
+ + =+
________
0 +16y=16
y=1
putting the value of y in first eqn
4x+9×1=5
4x=5-9
4x=-4
x=-1
so the x is -1 and y is 1
