Answer:
Step-by-step explanation:
1. 3x2 + 5x - 4 + 6x2 - x + 7
= combining like terms
= 9x2 + 4x + 3
2. 2y2 - 3y + 6 + y2 - 5y - 1 + (-4) + 2y2 - 2y
= 5y2 - 10y + 1
3. 2x2y - 3xy2 + x2y - 4x2y - 2xy2
= - x2y - 5xy2
4. x2 - y2 + 2x2 - 3xy + 4y2 + 3y2 - 5xy - x2
= 2x2 - 8xy + 6y2
Answer:
224
Step-by-step explanation:
(100+12)*2
Answer:
Both decrease, but the mean has a more significant change.
Step-by-step explanation:
The first thing is to know what happens to the mean and the median, removing a value, the normal thing is that both change. Now, how much they would change, what we know is that when removing or removing this value, it is normal for both to decrease.
Since $ 500 is a much larger value than the mean, removing this value from the dataset will significantly decrease the mean. The median, on the other hand, will move to the next smaller number, so the change will be small or even none.
Therefore, both change, but the mean has a more significant change.
