Answer:
edge of the cube is doubled. say it is represented by a.
so edge of the cube becomes 2a.
new surface area (S. A1) of the cube is
=6(2a)2=6(4a2)=24a2 sq.
hope this helps- ♥
Answer:
1/2 ; 1/3 ; 1/6
Step-by-step explanation:
Given :
Ben ~ exp(1)
Max ~ exp (2)
Yolanda ~ exp(3)
Ben :
X ~ exp(1)
Max:
Y ~ exp(2)
Yolanda :
Z ~ exp(3)
Probability that Yolanda is served first :
P(Z < (X, Y)) = Z /(x + y + z) = 3 /(1 + 2 + 3) = 3/6 = 1/2
Probability that Ben is served before Yolanda :
P(X < Z) = 1/ (1 + 2) = 1/3
Expected waiting time for first person served :
First person served = 1
Total = (1 + 2 + 3) = 6
Expected waiting time; E(x) :
E(x) : 1 / 6
Answer:
D
Step-by-step explanation:
Because they are opposite of each other
I found the missing choices. These are:
They are skew and will never intersect.
They are parallel and will never intersect.
They are perpendicular and will intersect.
<span>They will intersect at two points.
</span>
My answer: <span>They are skew and will never intersect.
Lines a and b are skew lines because they are not parallel and they do not intersect. The reason that they do not intersect is because each line is in a parallel plane. Parallel means going to the same direction but neither converging nor diverging.</span>
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Answer:
shaded/square = (50π cm²)/(400 cm²) = π/8
Step-by-step explanation:
The quarter circle has area ...
A = (1/4)(πr²) = π/4(20 cm)² = 100π cm²
The half-circle has area ...
A = (1/2)(πr²) = π/2(10 cm)² = 50π cm²
Then the area of the shaded portion is ...
shaded = 100π cm² -50π cm² = 50π cm²
__
The area of the square is ...
A = s² = (20 cm)² = 400 cm²
Then the ratio of interest is ...
shaded/square = (50π cm²)/(400 cm²) = π/8
