Add or subtract as indicated. Simplify if necessary. - 
- 
A. - 
B. 
C. - 
D. - 
Answer: A
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Find the missing angle in the triangle.Two angles are 34° and 86°.
A. 240° B. 120° C. 30° D. 60°
Solve the equation for solutions in the interval [0°, 360°). Round to the nearest degree.cos2 
= 1
A. {0°} B. {0°, 45°, 90°, 135°, 180°, 225°, 270°} C. {0°, 90°, 180°, 270°} D. {33°, 57°, 123°, 147°, 213°, 237°, 303°, 327°}
Solve the problem.A projectile is fired from a cliff 600 feet above the water at an inclination of 45° to the horizontal, with a muzzle velocity of 130 feet per second. The height h of the projectile above the water is given by 
where x is the horizontal distance of the projectile from the base of the cliff. Find the maximum height of the projectile.
A. 996.09 ft B. 732.03 ft C. 132.03 ft D. 264.06 ft
Evaluate.81.83 - (-25.11)
A. -106.94 B. 56.72 C. 106.94 D. -56.72