Since it's perimeter, you're adding. the expression would be x + 2 4/5
Answer:
0.8340
Step-by-step explanation:
The aim of this question is to find the probability that the student makes it to the second class prior to when the lecture commences.
Provided that A, B, and C are independent of each other from the full complete question.
Then; we want P(A + C < B)
So A
N (2, 1.5)
B
N (10, 1)
C
N (6, 1)
P(A + C - B < 0)
Since they are normally distributed( i.e. A + C - B)
Then;
E(A + C -B) = E(A) + E(C) - (B)
E(A + C -B) = 2 - 10 + 6
E(A + C -B) = -2
Var(A+C -B) = Var(A) + Var (B) + Var (C)
Var(A + C -B) = (1.5)² + (1)² + (1)²
Var(A + C -B) = 4.25
The standard deviation = 
The standard deviation = 2.06155



Answer:
D or 6 2/5 or 32/5
Step-by-step explanation:
convert 1 3/5 into fraction
8/5/1/4
convert to multiplicaton
8/5 times 4/1
simplify 32/5
convert 6 2/5
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Answer:
280 square inch
Step-by-step explanation:
2(4*8)+2(8*9)+2(9*4)
= 64+144+72
=280
0.133 because 5 mean you have to round up so it is 0.133