Step-by-step explanation:
multiply the first equation by 1, the second by -1 and add.
x + 2y = -16
-x - 6y = 28
--------------------
0 - 4y = 12
-4y = 12
y = -3
x + 2×-3 = -16
x - 6 = -16
x = -10
Answer:
C
Step-by-step explanation:
Multiply the functions.


Answer:
I'm pretty sure that the answer is 5. Correct me if i'm wrong
Step-by-step explanation:
Answer: 5.3
Step-by-step explanation: Do 9.8 (Friend swim depth) - 4.5 (dolphin jump height) to get your answer.
There are three elements in that set.