Solve the problem.The area of a circle is given by A(C) = 
, where C is the circumference. Find A(87 cm).
A. 190 cm2
B. 1200 cm2
C. 600 cm2
D. 22 cm2
Answer: C
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Factor completely.9x2 - 3xt - 2t2
A. (9x + t)(x - 2t) B. (3x + t)(3x - 2t) C. Prime D. (3x - t)(3x + 2t)
Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the semicircle y = 
if the density of the rod is 
A. 
= 
?, 
= 
?
B. 
= 
?, 
= 
?
C. 
= 0, 
= 
?
D. 
= 0, 
= 
?
Answer the question.The equations for a circuit are:
where the currents are measured in amperes. Are the currents I1 = 2.5 A and 
A. Yes B. No C. Cannot be determined
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.$1430 is compounded annually at 10%. Find the total amount in the account after 6 years.
A. $2303.03 B. $2145.00 C. $2533.39 D. $2288.00