Answer:
The percentage of the bank's customers carry daily balances between $700 and $1,000 is 65.7%.
The minimum daily balance on which it should be willing to pay interest is $1,198.
Step-by-step explanation:
We have a normal distribution with mean = $800 and standard deviation = $150.
a) We can calculate this value with the standard normal distribution, calculating the z-value for $700 and $1,000.
The percentage of the bank's customers carry daily balances between $700 and $1,000 is 65.7%.
b) We must calculate from what amount only 6% of the accounts remain.
This is done by solving:
This happens for a z-value of z=2.652.
This corresponds to a amount of $1,198.
The minimum daily balance on which it should be willing to pay interest is $1,198.
Answer:
28 inches
Step-by-step explanation:
To begin, the area of a rectangle is base · height. Since we are given one of the sides already, you can make an equation to solve for the other value.
5 · x = 45
5x = 45
x = 9
A rectangle has two pairs of parallel sides, or in easier terms, two sets of sides that are the same. So, the perimeter is going to be two lengths plus two widths.
2 · 5 + 9 · 2 = 10 + 14 = 28
Answer:
increase in percent
Step-by-step explanation:
it is increase in percent, but the question you're asking is dependend on the context..
Simple....
you have:
So...first you know you're trying to find x..
But, you have a square root on one side...to remove this you'd have to square both sides--->>>
Leaving you with....
Move the terms over and set it equal to
zero.
-->>
Factor out a 3...
What multiplies to -12 and adds to 4?
6*-2=-12
6+-2=4
Leaving you with...
Remember you're solving for 0....
3x-2=0
3x-2=0
+2 +2
3x=2
x=
Then-->>
x+2=0
x+2=0
-2 -2
x=-2
Thus, your answer.
Answer:
2/9
Step-by-step explanation:
Prob(consonant on first spin)
= 1/3
Prob(vowel on 2nd spin)
= 2/3
prob(event as stated)
= (1/3)(2/3)
= 2/9
