Answer:
a)=+2 b)=1
Step-by-step explanation:
A positive plus a negative is equal to a positive a
Answer:
484 feet maximum
Step-by-step explanation:
H(t)=-16t^2+112t+288
The maximum height occurs at the vertex of this graph.
Let us find the vertex.
vertex x-coordinate = -b/2a
x = -b/2a = -(112)/ (2*-16) = 7/2 sec.
H(7/2) = - 16 *(7/2)^2 + 112*(7/2) + 288
H(7/2) = -196 + 392 + 288 = 484 feet ..
Answer:
A: 2.5 pounds
Step-by-step explanation:
300 divided by 120 is 2.5
2.5 pounds per cake