I think it’s C if wrong I’m sorry
The sum of the first 28 terms in this sequence is 4,220
Answer:
(y/x)⁴
Step-by-step explanation:
14x^4y^6/7x^8y^2
= 2x^(-4)/2y^(-4)
= (y/x)⁴
Answer:
And we can find this probability with this difference and using the normal standard distribution
Step-by-step explanation:
Let X the random variable that represent the amount of Jen monthly phone of a population, and for this case we know the distribution for X is given by:
Where
and
We are interested on this probability
And we can use the z score formula given by:
Replacing the info we got:
And we can find this probability with this difference and using the normal standard distribution
√52 square root of 52, 6*6=36 -4*-4=16 add them together and then square root that number