Use the quadratic formula to solve the quadratic equation. Approximate the solutions to the nearest tenth.x2 = 5 - 8x
A. -13.2, 5.2
B. -0.6, 8.6
C. -5.6, 3.6
D. -8.6, 0.6
Answer: D
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Solve the problem.Find the length of the segment of the curve y = 
cosh 2x from x = 0 to x = ln 
.
A. 
B. 2
C. 
D. 
Solve the problem.Find the value for x in the following special right triangle. Use exact values. 
3 m
A. 6
m
B. 
m
C. 6 m
D. 3
m
Provide an appropriate response.The total price is the marked price plus the sales tax.
A. True B. False
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°