Answer:
excuse me can you speak english
I know the 1st and last one but i’m not sure on the rest sorry :(
Answer:
a = -86.
Step-by-step explanation:
By the Factor Theorem, if x + 4 is a factor then P(-4) = 0, so:
P(-4) = 2(-4)^3 - 11(-4)^2 + a(-4)- 40 = 0
-128 - 176 - 4a - 40 = 0
-4a = 128 +176 + 40
-4a = 344
a = -86.
The mean increases. When Deleware (2,000: 2) is included the mean must be divided by 9 instead of 8.
In order to answer, I would first need to know Jana's speed, not that she biked at a constant rate.
