No more than 33 texts a month
you know the total amount spent, you know the total of the bill without texts
45=39.99+.15t
Correct
m<2 = 125
m<8 = 55
m<14 = 100
m<16 = 80
Answer:
The value of x is 7.
Step-by-step explanation:
First, you have to make the left side into 1 fraction by making the denormintor the same and make it into simplest form :






Next you have to multiply both sides by 2 in order to make x the subject :



Answer:
a)
And we can find this probability with the complement rule:
b) 
And if we use the z score we got:
Step-by-step explanation:
Let X the random variable that represent the lengths of a population, and for this case we know the distribution for X is given by:
Where
and
Part a
We are interested on this probability
And we can use the z score formula given by:
And using this formula we got:
And we can find this probability with the complement rule:
Part b
For this case we select a sample of n =44 and the new z score formula is given by:

And if we find the z score we got:

And if we use the z score we got:
Answer:
your answer would be 20 because you would find what both can go into.