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°
Answer: A
Mathematics
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Find the compound amount for the deposit. Round to the nearest cent.$16,000 at 7% compounded annually for 15 years
A. $32,800.00 B. $44,144.50 C. $41,256.55 D. $31,680.00
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Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.a = 1, c = 14
A. b = 
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B. b = 
; b ? 14.036
C. b = 
; b ? 13.964
D. b = 13
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A. -9 B. 9 C. 3 D. -3
Mathematics