I say step 4 is incorrect.
Answer:
1.19 minutes
Step-by-step explanation:
First, subtract the $3 monthly fee:
16.09 - 3
= 13.09
Then, divide this by 11:
13.09/11
= 1.19
So, he was billed for 1.19 minutes
Answer:
168
Step-by-step explanation:
You multiply all the number together.
Answer:
x = -1 and 5
Step-by-step explanation:
Solve:
Factor out common value of 16:
Divide both sides by 16:
Change signs:
Break expression into groups:
Factor parentheses:
Factor out common term :
Therefore,
and
So and
Step-by-step explanation:
The probability that the dealer will be fined is 0.0948
To find p(a <= Z <= b) = F(b) - F(a)
P(X < 20) = (20 - 30.5)/3.4489
= -10.5/3.4489
= -3.0444
= P(Z < -3.0444) from standard normal table
= 0.00117
P(X < 26) = (26 - 30.5)/3.4489
= -4.5/3.4489 = -1.3048
= P(Z < -1.3048) From standard normal table
= 0.09599
P(20 < x < 26) = 0.09599 - 0.00117 = 0.0948
The answer in this question is 0.0948