Solve the problem.A semicircular plate
in diameter sticks straight down into fresh water with the diameter along the surface. Find the force exerted by the water on one side of the plate.
A. 2527.2 lb
B. 1123.2 lb
C. 1684.8 lb
D. 842.4 lb
Answer: B
Mathematics
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Find the indicated term for the geometric sequence with the first term a1 and common ratio r.Find a6 when a1 = 2, r = -3
A. a6 = -2187 B. a6 = -486 C. a6 = -36 D. a6 = -54
Mathematics
Find the average value of the function f over the given region.f(x, y) = 
; R = {(x, y): 1 ? x ? 5, 1 ? y ? 5}
A. 
B. 
C. 
D. 
Mathematics
Add the polynomials. Assume all variable exponents represent whole numbers.
+ 
A. 
x6 - 
B. 
x2 + 
x - 
C. 
x2 - 3x + 2
D. 
x4 + 
x2 - 
Mathematics
Solve.Amy teaches Chinese lessons for $85 per student for a 6-week session. From one group of students, she collects $2465. Find how many students are in the group.
A. 31 students B. 29 students C. 19 students D. 33 students
Mathematics