Answer:
y=2x+2
Step-by-step explanation:
Since

, we know that

follows a Poisson distribution with parameter

.
Now assuming

denote the mean and standard deviation of

, respectively, then we know right away that

and

.
So,
Answer:
9
Step-by-step explanation:
420 is the least common multiple for 21, 28, 35
Answer:
only -7
Step-by-step explanation:
Just plug them in.
so for x=-7
So this one is extraneous
Then if you plug -3 in you get 1 = 1 so this one is not extraneous. if you need me to work this one out let me know.