?
?Use the given information to write an equation for y.
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
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Find the length of the curve.x = 7 sin t - 7t cos t, y = 7cos t + 7t sin t, 0 ? t ? 
A. 
?2
B. 
?2
C. 
?
D. 
?2
Round the number so that there is only one nonzero digit.662,337
A. 500,000 B. 600,000 C. 1,000,000 D. 700,000
Place your graphing calculator in parametric and degree modes. Set the window for Tmin=0, Tmax=360, Tstep=1, Xmin= -1.8, Xmax=1.8, Xscl=1, Ymin= -1.2, Ymax=1.2, Yscl=1. Set the functions to X1T=cos T, Y1T=sin T. Graph the circle of radius 1 on the screen. Use the trace feature to move a short distance around the circle.For what angle T is cos T ? 0.766? (Assume 0° ? T ? 90°.)
A. 40° B. 36.832° C. 50° D. 0.766°
Write the sum of the geometric series as a rational number.0.57 + 0.0057 + 0.000057 + ...
A. 
B. 
C. 
D. 