Solve the problem.Find out how long it takes a $2500 investment to double if it is invested at 
compounded monthly. Round to the nearest tenth of a year. Use the formula 
.
A. 7.9 yr
B. 7.5 yr
C. 8.1 yr
D. 7.7 yr
Answer: D
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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = - 
i; C is the region defined by the polar coordinate inequalities 2 ? r ? 4 and 
A. 0
B. 
C. - 
D. 
Find the values of x: 3x2 + 2x - 4 = 0
a. x = 2.616, -1.382 b. x = -0.772, 4.317 c. x - -4, -2 d. x = 0.869, -1.535 e. x = 4, -3
Find the related angle for the given angle.225°
A. 45° B. 90° C. 30° D. 60°
?Let 
.Find the average rate of change of y with respect to x in the interval from 
to 
class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_9961b0a791ac4482981494322" />, from 
to 
, from 
to 
, and the (instantaneous) rate of change of y at 
.
?
A. ?
B. ?
C. ?
D. ?