A trough has vertical ends that are equilateral triangles with sides of length 7 ft. If the trough is filled with water to a depth of 4 ft, find the force exerted by the water on one end of the trough. Round to one decimal place. (The weight density of water is 62.4 lb/ft3.) Select the correct answer.
a. 384.3 lb
b. 1,337.7 lb
c. 768.6 lb
d. 2,675.4 lb
c. 768.6 lb
Mathematics
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Use the definition of continuity to determine whether f is continuous at a.f(x) = 
a = 0
A. Continuous B. Not continuous
Mathematics
Solve the problem.Find the volume V and surface area S of a sphere of radius 10 centimeters.
A. V = 1372? cm3; S = 
? cm2
B. V = 
? cm3; S = 196? cm2
C. V = 
? cm3; S = 
? cm2
D. V = 343? cm3; S = 49? cm2
Mathematics
Solve the problem.A lottery game has balls numbered 1 through 17. What is the probability of selecting an even numbered ball or a 9?
A. 
B. 
C. 
D. 
Mathematics
Convert the measurement as indicated.12,320 yd to miles
A. 7 mi
B. 12
mi
C. 36,960 mi
D. 2
mi
Mathematics