647.21 / 3.4 = 190.355
to the nearest hundredths it's 190.36
Answer:
Step-by-step explanation:
Hello!
To know what will be the resulting E(X) and V(X) of the total volume shipped, you have to add the three variables.
According to the properties of the E(X) The expected value of two variables or more independent variables is equal to the addition of the expected values of each variable: X+Y⇒ E(X+Y)= E(X) + E(Y)
In this case:
E(X₁+X₂+X₃)= E(X₁)+E(X₂)+E(X₃)= 200 + 240 + 120= 560 ft³
The same happens with the variance, if you add two independent variables, the variance of the resulting variable will be equal to the addition of the variance of each variable: X+Y ⇒ V(X+Y)= V(X)+V(Y)
In this case:
V(X₁+X₂+X₃)= V(X₁)+V(X₂)+V(X₃)= 10+13+8= 31
I hope it helps!
<h2>
Answer:</h2><h2>
<em>4</em><em>0</em><em>0</em></h2>
Step-by-step explanation:
12% × ? = 48
? =
48 ÷ 12% =
48 ÷ (12 ÷ 100) =
(100 × 48) ÷ 12 =
4,800 ÷ 12 =
400;
Answer:
Step-by-step explanation:
We have been given a recurrence relation 
and the first term of the sequence 
.
We can rewrite the given recurrence relation as: 
We know that if difference between two consecutive terms is always constant, the sequence is called an arithmetic sequence. So we are dealing with an arithmetic sequence with first term as 4 and common difference as 12.
We can therefore, write an explicit formula for nth terms of the sequence as.
This is the required explicit function rule for the given sequence.
Answer:
800 km
Step-by-step explanation:
Does the plane have a speed of it's own? I don't see it, so will assume the plane is simply travelling at 300 km/h.
(300 km/hr)*(1 hr/60 min) = 5 km/min
(5 km/min)*(160 min) = 800 km in 160 minutes
