Solve the problem.If an object is thrown upward with an initial velocity of 14 feet per second, then its height is given by h = -14t2 + 84t. After how many seconds does it hit the ground?
A. 3 sec
B. 14 sec
C. 6 sec
D. 28 sec
Answer: C
Mathematics
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Solve the problem. Round to two decimal places if needed.Find the area of the sector of a circle of radius 13.2 centimeters formed by a central angle of 
radians.
A. 14.52 square centimeters B. 91.24 square centimeters C. 3.46 square centimeters D. 45.62 square centimeters
Mathematics
Find the center-radius form of the equation of the circle.center (10, 0), radius 3
A. (x + 10)2 + y2 = 9 B. x2 + (y - 10)2 = 3 C. (x - 10)2 + y2 = 9 D. x2 + (y + 10)2 = 3
Mathematics
Use substitution to determine whether the given ordered pair is a solution of the given equation.(6, 17); y = 4x - 7
A. Yes B. No
Mathematics
Solve. If no solution exists, state this.
- 
= 
A. No solution B. -2, 2 C. -2 D. 2
Mathematics