Based on past experience, the manager of the VideoRama Store has compiled the following table, which gives the probabilities that a customer who enters the VideoRama Store will buy 0, 1, 2, 3, or 4 videocassettes. How many videocassettes can a customer entering this store be expected to buy?
a. E = 0.56
b. E = 0.66
c. E = 0.91
d. E = 0.86
c. E = 0.91
Mathematics
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Calculate the flux of the field F across the closed plane curve C.F = (x+y)i + xyj; the curve C is the closed counterclockwise path around the rectangle with vertices at 
and 
A. 133 B. 21 C. 84 D. 140
Mathematics
Provide an appropriate response.Find A to the nearest 0.1° if a = 23.5 cm and c = 56.1 cm. 
A. 65.2° B. 24.8° C. 67.3° D. 22.7°
Mathematics
Identify the type of surface represented by the given equation.
+ 
+ 
= 1
A. Paraboloid
B. Ellipsoid
C. Sphere
D.
| Elliptic cone |
Mathematics
Find the area.
A. 15
m2
B. 19 m2
C. 9
m2
D. 7
m2
Mathematics