H(t) = -16t2 + 186t + 43
at the ground h = 0
hence; -16t2 + 186t + 43 = 0
solving this quadratic equation using the quadratic formula ; a = -16, b = 186, c = 43 ; x = (-b +-(b2 - 4ac)1/2)/2a
gives t = 11.8 seconds to the nearest tenth (note that the negative root has no practical significance)
Bobby is right, because at x = -2, 3, and 5, the denominator of the function equals zero, which is by definition undefined.
10)
200 / 5 = 40
answer
p >= 40
11)
$15 per hour
so
15p >= 200
solve for p
p >= 200/15
p >= 13.33 or p?= 13 1/3
minimum hours = 13.33 or 13 1/3
Answer: C is the Answer
Step-by-step explanation:
x = -5
Step 1: open the bracket
2x + 12= x + 7
Step 2: Combine like terms
2x- x= 7-12
x= -5
