In order to solve this i'd have to know what x equals?? does it tell you?
Answer:
imma look this up rq
Step-by-step explanation:
So the question says:
____ + ____ = 18
____ * ____ = 77
so the answer is 7 and 11 :)))
lets check it:
7 + 11 = 18
7 * 11 = 77
I hope this is helpful
have a nice day
ANSWER
The radius is 8
EXPLANATION
We were given,

We rewrite the above equation to obtain,

We now add half the square of the coefficient of

to both sides of the equation to get,

We now got two perfect squares on the left hand side of the equation,



By comparing to the general formula of the circle,

We can see that the radius is 8.
Answer:
Hence the probability that the mean of their utility bills will be less than $75 = P(X < 75) is 0.9736.
Step-by-step explanation:
Now,
Population mean electric bill,
$72
Population standard deviation,
$6
Standard error of the mean
The probability that the mean of their utility bills will be less than $75 = P(X < 75)
= P[Z < (75 - 72) / 1.5492]
= P[Z < 1.9365]
= 0.9736 (Using Z table)