Find the indicated sum.8 + 5 + 2 + . . . - 112
A. -97
B. -2132
C. -104
D. -2080
Answer: B
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Find the length of the parametric curve defined over the given interval.x = 1 - t, y = 
; 0 ? t ? 
Give your answer in exact form.
A. sin-1
B. 25 sin-1
C. cos-1
D. 10 cos-1
Solve the problem. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts on the objects. A projectile is fired at a speed of 1160 m/sec at an angle of 52°. How long will it take to get 29 km downrange? Round your answer to the nearest whole number.
A. 39 sec B. 43 sec C. It will never get that far downrange. D. 41 sec
Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: "nose" of the paraboloid x2 + y2 = 2z cut by the plane z = 3Density: ? = 
A. 
B. 
C. 
D. 
Find fractional notation for the ratio. You need not simplify.401 to 421
A. 
B. 
C. 
D. 