Add or subtract as indicated. Write the answer in simplest form.
- 
A. 
B. - 
C. - 
D. 
Answer: C
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Evaluate the function 
at x = 1.8. Round to 3 decimal places.
A) 2.700 B) 2.075 C) 2.250 D) 5.203 E) 2.415
Solve.A deep-sea diver dives from the surface to 140 meters below the surface and then swims up 10 meters, down 16 meters, down another 26 meters, and then up 24 meters. Find the diver's depth after these movements.
A. 96 meters below the surface B. 148 meters below the surface C. 64 meters below the surface D. 168 meters below the surface
Determine whether the parabola opens upward or downward.y = 3x2 - 2x - 7
A. upward B. downward
Solve the problem.A foul tip of a baseball is hit straight upward from a height of 4 feet with an initial velocity of 
per second. The function 
describes the ball's height above the ground, s(t), in feet, t seconds after it was hit. The ball reaches its maximum height above the ground when the instantaneous velocity reaches zero. After how many seconds does the ball reach its maximum height?
A. 
seconds
B. 48 seconds
C. 
seconds
D. 3 seconds