Solve the problem.If a projectile is launched upward from the ground with an initial velocity of 64.5 feet per second, its height h in feet t seconds later is given by the function 
After how many seconds does the projectile land on the ground?
A. 2.0 seconds
B. 0.2 seconds
C. 4.0 seconds
D. 8.1 seconds
Answer: C
Mathematics
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Graph the solution of the quadratic inequalities on a number line and write the solution in interval notation. p2 + 5p + 6 > 0
A. (-2, ?)
B. (-?, -3)
C. (-3, -2)
D. (-?, -3) ? (-2, ?)
Mathematics
Multiply.(5)(-7)
A. -35 B. -70 C. -25 D. 35
Mathematics
A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given.C = 2?r; C = 31.40, ? = 3.14
A. 34.54 B. 5 C. 197.19 D. 10
Mathematics
Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
Mathematics