Answer:
-1
Step-by-step explanation:
2x-y+7
Let x = -5 and y = -2
2(-5) -(-2) +7
-10 +2 +7
-10 +9
-1
Mean is just another word for average. To find the average of something you must add up all values and divide by the number of values in the set.
Answer:
y=-48
Step-by-step explanation:
y/6-3=-11
y/6=-8
multiply 6/1 on each side
y=-48
It had to start off negative. Odd powers of negative numbers remain negative, even powers will always be positive no matter what. Every time you add one to the power, you multiply by another negative, changing the sign.
