Use the definite integral to find the area between the x-axis and the graph of f(x) over the indicated interval.f(x) = 
; [1, 3]
A. 
B. 3
C. 
D. 
Answer: D
Mathematics
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Write the given decimal as an infinite series, then find the sum of the series, and finally, use the result to write the decimal as a ratio of two integers.0.11111 . . .
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.3(3x - 2) + 7x
A. 16x + 6 B. 2x + 6 C. 2x - 6 D. 16x - 6
Mathematics
Solve the problem.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 70 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = ?(70 - r)r2 + 
?r3
B. V(r) = 70?r2 + 
?r3
C. V(r) = ?(70 - r) + 
?r2
D. V(r) = ?(70 - r)r3 + 
?r2
Mathematics
Convert the rectangular equation to polar form.x2 + 4y2 = 4
A. r2 = 
B. r = 
C. r = 
D. r2 = 
Mathematics