Answer:
3
Step-by-step explanation:
The Absolute value of -3 is 3 because it's the distance away from 0. Both have the same distance away from 0.
Answer:
4
Step-by-step explanation:
simple
Answer:
a)
Mean
b)
c)
Step-by-step explanation:
From the given information:
a.)
Mean
Let consider X to be a random variable that follows an exponential distribution; then:
P(X) = 1 - since
b.)
The required probability that a random chosen customer would spend more than $5,000 can be computed as:
c.)
The formula for half-life is given by:
N(t)=Ne^(-λt)
or
N(t)=N(1/2)^(t/τ)
where:
t=time
N=initial amount
N(t)=final amount
τ=half-life
thus the time taken for the drug to decay will be:
10=80(1/2)^(t/8)
1/8=(1/2)^(t/8)
introducing natural logs;
ln (1/8)=(t/8)ln (1/2)
thus;
[ln 1/8]/[ln 1/2]=t/8
3=t/8
t=3*8
t=24 hours
the answer is 24 hours
Answer: D. domain; x>-2; range: y>0; Yes, it is a function
Step-by-step explanation: